./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound50.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4f0dc25e497896e48962fc4f59a3ea4856b5eb0408b9845e68b04a0b0a132067 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 22:51:48,105 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 22:51:48,142 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-22 22:51:48,145 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 22:51:48,145 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 22:51:48,172 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 22:51:48,173 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 22:51:48,173 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 22:51:48,173 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 22:51:48,173 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 22:51:48,174 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 22:51:48,174 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 22:51:48,184 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 22:51:48,184 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 22:51:48,184 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 22:51:48,184 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 22:51:48,185 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 22:51:48,185 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 22:51:48,185 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 22:51:48,185 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 22:51:48,185 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 22:51:48,186 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 22:51:48,186 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 22:51:48,187 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 22:51:48,187 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 22:51:48,187 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-22 22:51:48,187 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 22:51:48,187 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 22:51:48,188 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 22:51:48,188 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 22:51:48,188 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 22:51:48,188 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 22:51:48,188 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 22:51:48,189 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 22:51:48,189 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 22:51:48,189 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 22:51:48,189 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 22:51:48,189 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 22:51:48,190 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 22:51:48,190 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 22:51:48,190 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 22:51:48,194 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 22:51:48,194 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 22:51:48,194 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 22:51:48,194 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f0dc25e497896e48962fc4f59a3ea4856b5eb0408b9845e68b04a0b0a132067 [2024-11-22 22:51:48,397 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 22:51:48,421 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 22:51:48,423 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 22:51:48,424 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 22:51:48,424 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 22:51:48,425 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound50.c [2024-11-22 22:51:49,697 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 22:51:49,838 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 22:51:49,839 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound50.c [2024-11-22 22:51:49,844 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1053065b0/f0a43a1484c74e92ae57b29e4c4d1d61/FLAGebc5a3b67 [2024-11-22 22:51:50,254 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1053065b0/f0a43a1484c74e92ae57b29e4c4d1d61 [2024-11-22 22:51:50,260 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 22:51:50,261 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 22:51:50,265 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 22:51:50,265 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 22:51:50,272 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 22:51:50,273 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:51:50" (1/1) ... [2024-11-22 22:51:50,273 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f2306e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:51:50, skipping insertion in model container [2024-11-22 22:51:50,273 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:51:50" (1/1) ... [2024-11-22 22:51:50,291 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 22:51:50,447 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 22:51:50,458 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 22:51:50,474 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 22:51:50,492 INFO L204 MainTranslator]: Completed translation [2024-11-22 22:51:50,492 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:51:50 WrapperNode [2024-11-22 22:51:50,492 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 22:51:50,493 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 22:51:50,493 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 22:51:50,493 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 22:51:50,498 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:51:50" (1/1) ... [2024-11-22 22:51:50,504 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:51:50" (1/1) ... [2024-11-22 22:51:50,517 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 69 [2024-11-22 22:51:50,518 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 22:51:50,519 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 22:51:50,519 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 22:51:50,519 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 22:51:50,529 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:51:50" (1/1) ... [2024-11-22 22:51:50,530 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:51:50" (1/1) ... [2024-11-22 22:51:50,531 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:51:50" (1/1) ... [2024-11-22 22:51:50,539 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-22 22:51:50,540 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:51:50" (1/1) ... [2024-11-22 22:51:50,540 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:51:50" (1/1) ... [2024-11-22 22:51:50,542 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:51:50" (1/1) ... [2024-11-22 22:51:50,544 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:51:50" (1/1) ... [2024-11-22 22:51:50,544 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:51:50" (1/1) ... [2024-11-22 22:51:50,545 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:51:50" (1/1) ... [2024-11-22 22:51:50,548 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 22:51:50,550 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 22:51:50,552 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 22:51:50,552 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 22:51:50,553 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:51:50" (1/1) ... [2024-11-22 22:51:50,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 22:51:50,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:51:50,592 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 22:51:50,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 22:51:50,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 22:51:50,630 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 22:51:50,630 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 22:51:50,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 22:51:50,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 22:51:50,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 22:51:50,630 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-22 22:51:50,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-22 22:51:50,672 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 22:51:50,673 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 22:51:50,818 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2024-11-22 22:51:50,818 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 22:51:50,828 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 22:51:50,828 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 22:51:50,828 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:51:50 BoogieIcfgContainer [2024-11-22 22:51:50,828 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 22:51:50,836 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 22:51:50,836 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 22:51:50,839 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 22:51:50,839 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 10:51:50" (1/3) ... [2024-11-22 22:51:50,840 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2429caaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:51:50, skipping insertion in model container [2024-11-22 22:51:50,840 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:51:50" (2/3) ... [2024-11-22 22:51:50,840 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2429caaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:51:50, skipping insertion in model container [2024-11-22 22:51:50,840 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:51:50" (3/3) ... [2024-11-22 22:51:50,841 INFO L112 eAbstractionObserver]: Analyzing ICFG mannadiv_valuebound50.c [2024-11-22 22:51:50,853 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 22:51:50,853 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2024-11-22 22:51:50,892 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 22:51:50,897 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;@1d4a0bcb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 22:51:50,899 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-22 22:51:50,902 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 37 states have (on average 1.7027027027027026) internal successors, (63), 57 states have internal predecessors, (63), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-22 22:51:50,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-22 22:51:50,908 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:51:50,908 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:51:50,909 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-22 22:51:50,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:51:50,912 INFO L85 PathProgramCache]: Analyzing trace with hash 848903376, now seen corresponding path program 1 times [2024-11-22 22:51:50,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:51:50,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005485172] [2024-11-22 22:51:50,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:51:50,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:51:50,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:51:51,024 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 22:51:51,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:51:51,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005485172] [2024-11-22 22:51:51,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005485172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:51:51,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:51:51,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 22:51:51,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383289068] [2024-11-22 22:51:51,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:51:51,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 22:51:51,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:51:51,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 22:51:51,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 22:51:51,051 INFO L87 Difference]: Start difference. First operand has 64 states, 37 states have (on average 1.7027027027027026) internal successors, (63), 57 states have internal predecessors, (63), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 22:51:51,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:51:51,067 INFO L93 Difference]: Finished difference Result 124 states and 141 transitions. [2024-11-22 22:51:51,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 22:51:51,068 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2024-11-22 22:51:51,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:51:51,073 INFO L225 Difference]: With dead ends: 124 [2024-11-22 22:51:51,073 INFO L226 Difference]: Without dead ends: 57 [2024-11-22 22:51:51,075 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 22:51:51,077 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 22:51:51,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 22:51:51,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-11-22 22:51:51,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2024-11-22 22:51:51,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 32 states have (on average 1.65625) internal successors, (53), 51 states have internal predecessors, (53), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 22:51:51,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 59 transitions. [2024-11-22 22:51:51,104 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 59 transitions. Word has length 15 [2024-11-22 22:51:51,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:51:51,106 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 59 transitions. [2024-11-22 22:51:51,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 22:51:51,107 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 59 transitions. [2024-11-22 22:51:51,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-22 22:51:51,107 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:51:51,108 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:51:51,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 22:51:51,108 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-22 22:51:51,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:51:51,109 INFO L85 PathProgramCache]: Analyzing trace with hash 848903391, now seen corresponding path program 1 times [2024-11-22 22:51:51,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:51:51,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728132079] [2024-11-22 22:51:51,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:51:51,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:51:51,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-22 22:51:51,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1868068720] [2024-11-22 22:51:51,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:51:51,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:51:51,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:51:51,137 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:51:51,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 22:51:51,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:51:51,182 INFO L255 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 22:51:51,186 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:51:51,204 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 22:51:51,204 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 22:51:51,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:51:51,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728132079] [2024-11-22 22:51:51,205 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 22:51:51,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1868068720] [2024-11-22 22:51:51,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1868068720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:51:51,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:51:51,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 22:51:51,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418327628] [2024-11-22 22:51:51,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:51:51,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 22:51:51,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:51:51,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 22:51:51,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 22:51:51,208 INFO L87 Difference]: Start difference. First operand 57 states and 59 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 22:51:51,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:51:51,282 INFO L93 Difference]: Finished difference Result 91 states and 101 transitions. [2024-11-22 22:51:51,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 22:51:51,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2024-11-22 22:51:51,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:51:51,284 INFO L225 Difference]: With dead ends: 91 [2024-11-22 22:51:51,284 INFO L226 Difference]: Without dead ends: 85 [2024-11-22 22:51:51,284 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 22:51:51,285 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 26 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 22:51:51,285 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 76 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 22:51:51,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-22 22:51:51,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 77. [2024-11-22 22:51:51,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 51 states have (on average 1.6470588235294117) internal successors, (84), 70 states have internal predecessors, (84), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-22 22:51:51,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 92 transitions. [2024-11-22 22:51:51,300 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 92 transitions. Word has length 15 [2024-11-22 22:51:51,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:51:51,300 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 92 transitions. [2024-11-22 22:51:51,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 22:51:51,300 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 92 transitions. [2024-11-22 22:51:51,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-22 22:51:51,322 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:51:51,322 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:51:51,329 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 22:51:51,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:51:51,527 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-22 22:51:51,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:51:51,528 INFO L85 PathProgramCache]: Analyzing trace with hash -247625951, now seen corresponding path program 1 times [2024-11-22 22:51:51,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:51:51,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752850493] [2024-11-22 22:51:51,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:51:51,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:51:51,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:51:51,622 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 22:51:51,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:51:51,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752850493] [2024-11-22 22:51:51,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752850493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:51:51,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:51:51,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 22:51:51,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338890232] [2024-11-22 22:51:51,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:51:51,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 22:51:51,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:51:51,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 22:51:51,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 22:51:51,625 INFO L87 Difference]: Start difference. First operand 77 states and 92 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 22:51:51,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:51:51,705 INFO L93 Difference]: Finished difference Result 121 states and 153 transitions. [2024-11-22 22:51:51,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 22:51:51,706 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2024-11-22 22:51:51,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:51:51,707 INFO L225 Difference]: With dead ends: 121 [2024-11-22 22:51:51,707 INFO L226 Difference]: Without dead ends: 114 [2024-11-22 22:51:51,708 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 22:51:51,708 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 21 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 22:51:51,709 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 94 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 22:51:51,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-22 22:51:51,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 110. [2024-11-22 22:51:51,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 82 states have (on average 1.5609756097560976) internal successors, (128), 101 states have internal predecessors, (128), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-22 22:51:51,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 140 transitions. [2024-11-22 22:51:51,720 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 140 transitions. Word has length 17 [2024-11-22 22:51:51,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:51:51,720 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 140 transitions. [2024-11-22 22:51:51,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 22:51:51,721 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 140 transitions. [2024-11-22 22:51:51,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-22 22:51:51,721 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:51:51,721 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:51:51,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 22:51:51,721 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-22 22:51:51,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:51:51,722 INFO L85 PathProgramCache]: Analyzing trace with hash 913530163, now seen corresponding path program 1 times [2024-11-22 22:51:51,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:51:51,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395747941] [2024-11-22 22:51:51,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:51:51,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:51:51,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:51:51,806 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 22:51:51,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:51:51,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395747941] [2024-11-22 22:51:51,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395747941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:51:51,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:51:51,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 22:51:51,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175906472] [2024-11-22 22:51:51,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:51:51,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 22:51:51,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:51:51,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 22:51:51,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 22:51:51,808 INFO L87 Difference]: Start difference. First operand 110 states and 140 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 22:51:51,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:51:51,862 INFO L93 Difference]: Finished difference Result 116 states and 141 transitions. [2024-11-22 22:51:51,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 22:51:51,862 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2024-11-22 22:51:51,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:51:51,863 INFO L225 Difference]: With dead ends: 116 [2024-11-22 22:51:51,863 INFO L226 Difference]: Without dead ends: 107 [2024-11-22 22:51:51,864 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 22:51:51,864 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 32 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 22:51:51,864 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 78 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 22:51:51,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-22 22:51:51,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 105. [2024-11-22 22:51:51,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 77 states have (on average 1.5324675324675325) internal successors, (118), 96 states have internal predecessors, (118), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-22 22:51:51,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 130 transitions. [2024-11-22 22:51:51,871 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 130 transitions. Word has length 18 [2024-11-22 22:51:51,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:51:51,872 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 130 transitions. [2024-11-22 22:51:51,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 22:51:51,872 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 130 transitions. [2024-11-22 22:51:51,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-22 22:51:51,872 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:51:51,872 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:51:51,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 22:51:51,873 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-22 22:51:51,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:51:51,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1745335965, now seen corresponding path program 1 times [2024-11-22 22:51:51,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:51:51,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626243197] [2024-11-22 22:51:51,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:51:51,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:51:51,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:51:52,008 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 22:51:52,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:51:52,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626243197] [2024-11-22 22:51:52,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626243197] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:51:52,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974856015] [2024-11-22 22:51:52,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:51:52,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:51:52,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:51:52,014 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:51:52,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 22:51:52,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:51:52,048 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 22:51:52,050 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:51:52,159 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 22:51:52,159 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 22:51:52,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1974856015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:51:52,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 22:51:52,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-22 22:51:52,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346727964] [2024-11-22 22:51:52,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:51:52,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 22:51:52,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:51:52,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 22:51:52,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-22 22:51:52,160 INFO L87 Difference]: Start difference. First operand 105 states and 130 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 22:51:52,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:51:52,249 INFO L93 Difference]: Finished difference Result 108 states and 134 transitions. [2024-11-22 22:51:52,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 22:51:52,250 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2024-11-22 22:51:52,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:51:52,251 INFO L225 Difference]: With dead ends: 108 [2024-11-22 22:51:52,251 INFO L226 Difference]: Without dead ends: 107 [2024-11-22 22:51:52,251 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-22 22:51:52,253 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 72 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 22:51:52,254 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 64 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 22:51:52,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-22 22:51:52,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 105. [2024-11-22 22:51:52,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 77 states have (on average 1.5194805194805194) internal successors, (117), 96 states have internal predecessors, (117), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-22 22:51:52,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 129 transitions. [2024-11-22 22:51:52,268 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 129 transitions. Word has length 19 [2024-11-22 22:51:52,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:51:52,268 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 129 transitions. [2024-11-22 22:51:52,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 22:51:52,268 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 129 transitions. [2024-11-22 22:51:52,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-22 22:51:52,269 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:51:52,269 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:51:52,277 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-22 22:51:52,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:51:52,470 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-22 22:51:52,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:51:52,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1729159989, now seen corresponding path program 1 times [2024-11-22 22:51:52,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:51:52,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699561875] [2024-11-22 22:51:52,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:51:52,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:51:52,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-22 22:51:52,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1268158295] [2024-11-22 22:51:52,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:51:52,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:51:52,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:51:52,493 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:51:52,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 22:51:52,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:51:52,542 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 22:51:52,543 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:51:52,641 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 22:51:52,642 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 22:51:52,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:51:52,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699561875] [2024-11-22 22:51:52,642 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 22:51:52,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268158295] [2024-11-22 22:51:52,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1268158295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:51:52,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:51:52,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 22:51:52,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145416255] [2024-11-22 22:51:52,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:51:52,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 22:51:52,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:51:52,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 22:51:52,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 22:51:52,647 INFO L87 Difference]: Start difference. First operand 105 states and 129 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 22:51:52,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:51:52,746 INFO L93 Difference]: Finished difference Result 106 states and 129 transitions. [2024-11-22 22:51:52,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 22:51:52,746 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2024-11-22 22:51:52,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:51:52,747 INFO L225 Difference]: With dead ends: 106 [2024-11-22 22:51:52,747 INFO L226 Difference]: Without dead ends: 105 [2024-11-22 22:51:52,747 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 22:51:52,748 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 65 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 22:51:52,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 69 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 22:51:52,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-11-22 22:51:52,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2024-11-22 22:51:52,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 77 states have (on average 1.5064935064935066) internal successors, (116), 96 states have internal predecessors, (116), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-22 22:51:52,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 128 transitions. [2024-11-22 22:51:52,755 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 128 transitions. Word has length 20 [2024-11-22 22:51:52,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:51:52,755 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 128 transitions. [2024-11-22 22:51:52,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 22:51:52,756 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 128 transitions. [2024-11-22 22:51:52,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-22 22:51:52,756 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:51:52,756 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:51:52,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-22 22:51:52,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:51:52,961 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-22 22:51:52,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:51:52,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1247141175, now seen corresponding path program 1 times [2024-11-22 22:51:52,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:51:52,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355953043] [2024-11-22 22:51:52,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:51:52,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:51:52,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:51:53,055 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 22:51:53,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:51:53,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355953043] [2024-11-22 22:51:53,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355953043] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:51:53,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860768103] [2024-11-22 22:51:53,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:51:53,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:51:53,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:51:53,058 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:51:53,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 22:51:53,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:51:53,095 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 22:51:53,096 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:51:53,133 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 22:51:53,133 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:51:53,199 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 22:51:53,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860768103] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 22:51:53,199 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 22:51:53,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-22 22:51:53,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646037153] [2024-11-22 22:51:53,200 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 22:51:53,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 22:51:53,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:51:53,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 22:51:53,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-22 22:51:53,201 INFO L87 Difference]: Start difference. First operand 105 states and 128 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-22 22:51:53,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:51:53,272 INFO L93 Difference]: Finished difference Result 158 states and 195 transitions. [2024-11-22 22:51:53,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 22:51:53,273 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 32 [2024-11-22 22:51:53,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:51:53,274 INFO L225 Difference]: With dead ends: 158 [2024-11-22 22:51:53,274 INFO L226 Difference]: Without dead ends: 156 [2024-11-22 22:51:53,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-22 22:51:53,274 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 118 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 22:51:53,276 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 180 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 22:51:53,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-11-22 22:51:53,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 146. [2024-11-22 22:51:53,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 116 states have (on average 1.5) internal successors, (174), 135 states have internal predecessors, (174), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-22 22:51:53,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 190 transitions. [2024-11-22 22:51:53,290 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 190 transitions. Word has length 32 [2024-11-22 22:51:53,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:51:53,290 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 190 transitions. [2024-11-22 22:51:53,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-22 22:51:53,290 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 190 transitions. [2024-11-22 22:51:53,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-22 22:51:53,294 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:51:53,294 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:51:53,303 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-22 22:51:53,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:51:53,495 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-22 22:51:53,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:51:53,496 INFO L85 PathProgramCache]: Analyzing trace with hash -6670674, now seen corresponding path program 1 times [2024-11-22 22:51:53,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:51:53,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303248575] [2024-11-22 22:51:53,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:51:53,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:51:53,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:51:53,524 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 22:51:53,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:51:53,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303248575] [2024-11-22 22:51:53,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303248575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:51:53,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:51:53,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 22:51:53,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434843194] [2024-11-22 22:51:53,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:51:53,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 22:51:53,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:51:53,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 22:51:53,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 22:51:53,526 INFO L87 Difference]: Start difference. First operand 146 states and 190 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 22:51:53,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:51:53,552 INFO L93 Difference]: Finished difference Result 146 states and 190 transitions. [2024-11-22 22:51:53,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 22:51:53,552 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33 [2024-11-22 22:51:53,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:51:53,553 INFO L225 Difference]: With dead ends: 146 [2024-11-22 22:51:53,553 INFO L226 Difference]: Without dead ends: 144 [2024-11-22 22:51:53,553 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 22:51:53,554 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 57 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 22:51:53,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 73 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 22:51:53,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-11-22 22:51:53,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2024-11-22 22:51:53,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 116 states have (on average 1.456896551724138) internal successors, (169), 133 states have internal predecessors, (169), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-22 22:51:53,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 185 transitions. [2024-11-22 22:51:53,568 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 185 transitions. Word has length 33 [2024-11-22 22:51:53,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:51:53,568 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 185 transitions. [2024-11-22 22:51:53,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 22:51:53,568 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 185 transitions. [2024-11-22 22:51:53,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-22 22:51:53,569 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:51:53,569 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:51:53,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 22:51:53,569 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-22 22:51:53,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:51:53,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1598481830, now seen corresponding path program 1 times [2024-11-22 22:51:53,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:51:53,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068540178] [2024-11-22 22:51:53,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:51:53,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:51:53,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-22 22:51:53,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [735616040] [2024-11-22 22:51:53,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:51:53,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:51:53,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:51:53,591 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:51:53,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 22:51:53,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:51:53,635 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 22:51:53,636 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:51:53,744 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 22:51:53,745 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:51:53,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:51:53,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068540178] [2024-11-22 22:51:53,889 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 22:51:53,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735616040] [2024-11-22 22:51:53,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735616040] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:51:53,889 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-22 22:51:53,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-22 22:51:53,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904476433] [2024-11-22 22:51:53,890 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-22 22:51:53,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 22:51:53,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:51:53,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 22:51:53,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-22 22:51:53,891 INFO L87 Difference]: Start difference. First operand 144 states and 185 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 22:51:53,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:51:53,983 INFO L93 Difference]: Finished difference Result 151 states and 188 transitions. [2024-11-22 22:51:53,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 22:51:53,984 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2024-11-22 22:51:53,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:51:53,984 INFO L225 Difference]: With dead ends: 151 [2024-11-22 22:51:53,984 INFO L226 Difference]: Without dead ends: 144 [2024-11-22 22:51:53,985 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-22 22:51:53,985 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 40 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 22:51:53,985 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 65 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 22:51:53,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-11-22 22:51:53,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 140. [2024-11-22 22:51:53,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 117 states have (on average 1.3418803418803418) internal successors, (157), 129 states have internal predecessors, (157), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-22 22:51:53,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 173 transitions. [2024-11-22 22:51:53,994 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 173 transitions. Word has length 35 [2024-11-22 22:51:53,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:51:53,994 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 173 transitions. [2024-11-22 22:51:53,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 22:51:53,995 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 173 transitions. [2024-11-22 22:51:53,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-22 22:51:53,995 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:51:53,995 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:51:54,005 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-22 22:51:54,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:51:54,196 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-22 22:51:54,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:51:54,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1986670774, now seen corresponding path program 1 times [2024-11-22 22:51:54,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:51:54,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624264151] [2024-11-22 22:51:54,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:51:54,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:51:54,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-22 22:51:54,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1294116690] [2024-11-22 22:51:54,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:51:54,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:51:54,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:51:54,211 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:51:54,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 22:51:54,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:51:54,241 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 22:51:54,242 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:51:54,407 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 22:51:54,408 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:51:54,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:51:54,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624264151] [2024-11-22 22:51:54,676 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 22:51:54,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1294116690] [2024-11-22 22:51:54,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1294116690] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:51:54,676 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-22 22:51:54,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-22 22:51:54,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509491194] [2024-11-22 22:51:54,677 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-22 22:51:54,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 22:51:54,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:51:54,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 22:51:54,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-22 22:51:54,678 INFO L87 Difference]: Start difference. First operand 140 states and 173 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 22:51:54,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:51:54,836 INFO L93 Difference]: Finished difference Result 188 states and 231 transitions. [2024-11-22 22:51:54,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 22:51:54,836 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2024-11-22 22:51:54,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:51:54,837 INFO L225 Difference]: With dead ends: 188 [2024-11-22 22:51:54,838 INFO L226 Difference]: Without dead ends: 185 [2024-11-22 22:51:54,838 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-22 22:51:54,838 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 94 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 22:51:54,838 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 96 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 22:51:54,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-11-22 22:51:54,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 177. [2024-11-22 22:51:54,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 152 states have (on average 1.3289473684210527) internal successors, (202), 164 states have internal predecessors, (202), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-22 22:51:54,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 222 transitions. [2024-11-22 22:51:54,864 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 222 transitions. Word has length 36 [2024-11-22 22:51:54,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:51:54,864 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 222 transitions. [2024-11-22 22:51:54,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 22:51:54,865 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 222 transitions. [2024-11-22 22:51:54,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-22 22:51:54,869 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:51:54,870 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:51:54,877 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-22 22:51:55,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:51:55,071 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-22 22:51:55,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:51:55,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1523064142, now seen corresponding path program 1 times [2024-11-22 22:51:55,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:51:55,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110645559] [2024-11-22 22:51:55,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:51:55,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:51:55,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:51:55,162 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 22:51:55,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:51:55,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110645559] [2024-11-22 22:51:55,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110645559] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:51:55,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1879929833] [2024-11-22 22:51:55,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:51:55,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:51:55,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:51:55,165 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:51:55,166 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-22 22:51:55,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:51:55,194 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 22:51:55,195 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:51:55,276 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 22:51:55,276 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 22:51:55,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1879929833] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:51:55,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 22:51:55,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-22 22:51:55,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665952690] [2024-11-22 22:51:55,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:51:55,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 22:51:55,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:51:55,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 22:51:55,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-22 22:51:55,279 INFO L87 Difference]: Start difference. First operand 177 states and 222 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 22:51:55,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:51:55,341 INFO L93 Difference]: Finished difference Result 177 states and 222 transitions. [2024-11-22 22:51:55,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 22:51:55,341 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 37 [2024-11-22 22:51:55,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:51:55,342 INFO L225 Difference]: With dead ends: 177 [2024-11-22 22:51:55,343 INFO L226 Difference]: Without dead ends: 175 [2024-11-22 22:51:55,343 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-22 22:51:55,344 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 20 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 22:51:55,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 81 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 22:51:55,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-22 22:51:55,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 172. [2024-11-22 22:51:55,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 149 states have (on average 1.3154362416107384) internal successors, (196), 159 states have internal predecessors, (196), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-22 22:51:55,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 216 transitions. [2024-11-22 22:51:55,351 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 216 transitions. Word has length 37 [2024-11-22 22:51:55,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:51:55,351 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 216 transitions. [2024-11-22 22:51:55,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 22:51:55,351 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 216 transitions. [2024-11-22 22:51:55,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-22 22:51:55,353 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:51:55,353 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:51:55,359 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-22 22:51:55,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:51:55,553 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-22 22:51:55,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:51:55,554 INFO L85 PathProgramCache]: Analyzing trace with hash 29651906, now seen corresponding path program 1 times [2024-11-22 22:51:55,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:51:55,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528485219] [2024-11-22 22:51:55,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:51:55,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:51:55,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:51:55,648 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 22:51:55,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:51:55,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528485219] [2024-11-22 22:51:55,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528485219] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:51:55,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1380872545] [2024-11-22 22:51:55,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:51:55,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:51:55,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:51:55,652 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:51:55,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-22 22:51:55,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:51:55,688 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 22:51:55,689 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:51:55,752 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 22:51:55,752 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:51:55,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1380872545] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:51:55,818 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-22 22:51:55,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 8 [2024-11-22 22:51:55,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611229723] [2024-11-22 22:51:55,818 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-22 22:51:55,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 22:51:55,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:51:55,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 22:51:55,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-22 22:51:55,820 INFO L87 Difference]: Start difference. First operand 172 states and 216 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-22 22:51:55,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:51:55,952 INFO L93 Difference]: Finished difference Result 180 states and 220 transitions. [2024-11-22 22:51:55,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 22:51:55,953 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 38 [2024-11-22 22:51:55,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:51:55,954 INFO L225 Difference]: With dead ends: 180 [2024-11-22 22:51:55,954 INFO L226 Difference]: Without dead ends: 172 [2024-11-22 22:51:55,954 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-11-22 22:51:55,954 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 35 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 22:51:55,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 138 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 22:51:55,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-11-22 22:51:55,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2024-11-22 22:51:55,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 149 states have (on average 1.2885906040268456) internal successors, (192), 159 states have internal predecessors, (192), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-22 22:51:55,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 212 transitions. [2024-11-22 22:51:55,968 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 212 transitions. Word has length 38 [2024-11-22 22:51:55,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:51:55,969 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 212 transitions. [2024-11-22 22:51:55,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-22 22:51:55,969 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 212 transitions. [2024-11-22 22:51:55,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-22 22:51:55,969 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:51:55,969 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:51:55,977 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-22 22:51:56,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-22 22:51:56,174 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-22 22:51:56,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:51:56,174 INFO L85 PathProgramCache]: Analyzing trace with hash 919209140, now seen corresponding path program 1 times [2024-11-22 22:51:56,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:51:56,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411927982] [2024-11-22 22:51:56,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:51:56,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:51:56,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:51:56,220 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 22:51:56,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:51:56,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411927982] [2024-11-22 22:51:56,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411927982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:51:56,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:51:56,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 22:51:56,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779145579] [2024-11-22 22:51:56,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:51:56,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 22:51:56,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:51:56,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 22:51:56,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 22:51:56,222 INFO L87 Difference]: Start difference. First operand 172 states and 212 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 22:51:56,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:51:56,303 INFO L93 Difference]: Finished difference Result 173 states and 212 transitions. [2024-11-22 22:51:56,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 22:51:56,303 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 39 [2024-11-22 22:51:56,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:51:56,304 INFO L225 Difference]: With dead ends: 173 [2024-11-22 22:51:56,304 INFO L226 Difference]: Without dead ends: 172 [2024-11-22 22:51:56,304 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 22:51:56,304 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 22:51:56,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 22:51:56,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-11-22 22:51:56,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2024-11-22 22:51:56,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 149 states have (on average 1.261744966442953) internal successors, (188), 159 states have internal predecessors, (188), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-22 22:51:56,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 208 transitions. [2024-11-22 22:51:56,313 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 208 transitions. Word has length 39 [2024-11-22 22:51:56,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:51:56,314 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 208 transitions. [2024-11-22 22:51:56,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 22:51:56,314 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 208 transitions. [2024-11-22 22:51:56,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-22 22:51:56,315 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:51:56,315 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:51:56,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 22:51:56,315 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-22 22:51:56,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:51:56,315 INFO L85 PathProgramCache]: Analyzing trace with hash -259639638, now seen corresponding path program 1 times [2024-11-22 22:51:56,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:51:56,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971414772] [2024-11-22 22:51:56,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:51:56,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:51:56,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:51:56,437 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 22:51:56,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:51:56,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971414772] [2024-11-22 22:51:56,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971414772] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:51:56,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [377673224] [2024-11-22 22:51:56,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:51:56,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:51:56,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:51:56,440 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:51:56,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-22 22:51:56,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:51:56,468 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-22 22:51:56,469 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:51:56,551 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 22:51:56,552 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:51:56,687 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 22:51:56,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [377673224] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 22:51:56,688 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 22:51:56,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-11-22 22:51:56,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773165095] [2024-11-22 22:51:56,688 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 22:51:56,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-22 22:51:56,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:51:56,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-22 22:51:56,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-11-22 22:51:56,689 INFO L87 Difference]: Start difference. First operand 172 states and 208 transitions. Second operand has 17 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 22:51:56,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:51:56,968 INFO L93 Difference]: Finished difference Result 173 states and 208 transitions. [2024-11-22 22:51:56,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 22:51:56,969 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 39 [2024-11-22 22:51:56,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:51:56,970 INFO L225 Difference]: With dead ends: 173 [2024-11-22 22:51:56,970 INFO L226 Difference]: Without dead ends: 170 [2024-11-22 22:51:56,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 65 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2024-11-22 22:51:56,971 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 121 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 22:51:56,971 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 154 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 22:51:56,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-11-22 22:51:56,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 143. [2024-11-22 22:51:56,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 124 states have (on average 1.2338709677419355) internal successors, (153), 131 states have internal predecessors, (153), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-22 22:51:56,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 171 transitions. [2024-11-22 22:51:56,978 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 171 transitions. Word has length 39 [2024-11-22 22:51:56,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:51:56,978 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 171 transitions. [2024-11-22 22:51:56,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 22:51:56,978 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 171 transitions. [2024-11-22 22:51:56,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-22 22:51:56,978 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:51:56,978 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:51:56,985 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-22 22:51:57,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-22 22:51:57,183 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-22 22:51:57,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:51:57,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1569287676, now seen corresponding path program 1 times [2024-11-22 22:51:57,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:51:57,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646606896] [2024-11-22 22:51:57,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:51:57,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:51:57,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:51:57,212 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 22:51:57,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:51:57,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646606896] [2024-11-22 22:51:57,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646606896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:51:57,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:51:57,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 22:51:57,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439561850] [2024-11-22 22:51:57,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:51:57,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 22:51:57,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:51:57,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 22:51:57,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 22:51:57,213 INFO L87 Difference]: Start difference. First operand 143 states and 171 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 22:51:57,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:51:57,275 INFO L93 Difference]: Finished difference Result 144 states and 171 transitions. [2024-11-22 22:51:57,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 22:51:57,275 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40 [2024-11-22 22:51:57,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:51:57,276 INFO L225 Difference]: With dead ends: 144 [2024-11-22 22:51:57,276 INFO L226 Difference]: Without dead ends: 143 [2024-11-22 22:51:57,276 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 22:51:57,277 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 22:51:57,277 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 22:51:57,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-11-22 22:51:57,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2024-11-22 22:51:57,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 124 states have (on average 1.2016129032258065) internal successors, (149), 131 states have internal predecessors, (149), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-22 22:51:57,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 167 transitions. [2024-11-22 22:51:57,283 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 167 transitions. Word has length 40 [2024-11-22 22:51:57,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:51:57,283 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 167 transitions. [2024-11-22 22:51:57,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 22:51:57,283 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 167 transitions. [2024-11-22 22:51:57,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-22 22:51:57,284 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:51:57,284 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:51:57,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 22:51:57,284 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-22 22:51:57,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:51:57,285 INFO L85 PathProgramCache]: Analyzing trace with hash 541105870, now seen corresponding path program 1 times [2024-11-22 22:51:57,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:51:57,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814669154] [2024-11-22 22:51:57,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:51:57,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:51:57,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-22 22:51:57,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [207944685] [2024-11-22 22:51:57,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:51:57,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:51:57,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:51:57,293 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:51:57,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-22 22:51:57,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:51:57,332 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-22 22:51:57,333 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:51:57,451 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 22:51:57,451 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:51:57,525 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 22:51:57,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:51:57,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814669154] [2024-11-22 22:51:57,525 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 22:51:57,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207944685] [2024-11-22 22:51:57,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [207944685] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 22:51:57,525 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-22 22:51:57,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-22 22:51:57,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015105829] [2024-11-22 22:51:57,526 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-22 22:51:57,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 22:51:57,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:51:57,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 22:51:57,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-22 22:51:57,526 INFO L87 Difference]: Start difference. First operand 143 states and 167 transitions. Second operand has 11 states, 10 states have (on average 5.4) internal successors, (54), 11 states have internal predecessors, (54), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-22 22:51:57,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:51:57,740 INFO L93 Difference]: Finished difference Result 230 states and 268 transitions. [2024-11-22 22:51:57,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 22:51:57,740 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.4) internal successors, (54), 11 states have internal predecessors, (54), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 40 [2024-11-22 22:51:57,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:51:57,741 INFO L225 Difference]: With dead ends: 230 [2024-11-22 22:51:57,741 INFO L226 Difference]: Without dead ends: 158 [2024-11-22 22:51:57,742 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2024-11-22 22:51:57,742 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 82 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 22:51:57,742 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 93 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 22:51:57,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-11-22 22:51:57,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2024-11-22 22:51:57,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 139 states have (on average 1.1654676258992807) internal successors, (162), 145 states have internal predecessors, (162), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-22 22:51:57,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 182 transitions. [2024-11-22 22:51:57,753 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 182 transitions. Word has length 40 [2024-11-22 22:51:57,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:51:57,753 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 182 transitions. [2024-11-22 22:51:57,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.4) internal successors, (54), 11 states have internal predecessors, (54), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-22 22:51:57,754 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 182 transitions. [2024-11-22 22:51:57,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-22 22:51:57,754 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:51:57,754 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:51:57,762 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-22 22:51:57,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-22 22:51:57,956 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-22 22:51:57,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:51:57,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1333082339, now seen corresponding path program 2 times [2024-11-22 22:51:57,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:51:57,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846856528] [2024-11-22 22:51:57,957 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 22:51:57,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:51:57,965 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 22:51:57,965 INFO L228 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-22 22:51:57,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [968502366] [2024-11-22 22:51:57,966 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 22:51:57,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:51:57,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:51:57,968 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:51:57,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-22 22:51:57,998 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 22:51:57,998 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:51:57,999 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-22 22:51:58,000 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:51:58,083 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-22 22:51:58,084 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:51:58,214 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-22 22:51:58,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:51:58,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846856528] [2024-11-22 22:51:58,214 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 22:51:58,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [968502366] [2024-11-22 22:51:58,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [968502366] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 22:51:58,214 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-22 22:51:58,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-22 22:51:58,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964368246] [2024-11-22 22:51:58,214 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-22 22:51:58,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 22:51:58,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:51:58,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 22:51:58,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-22 22:51:58,215 INFO L87 Difference]: Start difference. First operand 158 states and 182 transitions. Second operand has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-22 22:51:58,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:51:58,827 INFO L93 Difference]: Finished difference Result 325 states and 386 transitions. [2024-11-22 22:51:58,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-22 22:51:58,828 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 56 [2024-11-22 22:51:58,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:51:58,829 INFO L225 Difference]: With dead ends: 325 [2024-11-22 22:51:58,829 INFO L226 Difference]: Without dead ends: 322 [2024-11-22 22:51:58,829 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2024-11-22 22:51:58,829 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 142 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 22:51:58,829 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 246 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 22:51:58,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-11-22 22:51:58,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 300. [2024-11-22 22:51:58,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 274 states have (on average 1.1715328467153285) internal successors, (321), 279 states have internal predecessors, (321), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-22 22:51:58,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 357 transitions. [2024-11-22 22:51:58,843 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 357 transitions. Word has length 56 [2024-11-22 22:51:58,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:51:58,843 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 357 transitions. [2024-11-22 22:51:58,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-22 22:51:58,843 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 357 transitions. [2024-11-22 22:51:58,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-22 22:51:58,843 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:51:58,843 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:51:58,851 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-22 22:51:59,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-22 22:51:59,044 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-22 22:51:59,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:51:59,045 INFO L85 PathProgramCache]: Analyzing trace with hash 689941713, now seen corresponding path program 2 times [2024-11-22 22:51:59,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:51:59,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128152457] [2024-11-22 22:51:59,045 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 22:51:59,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:51:59,056 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 22:51:59,065 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:51:59,226 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 22:51:59,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:51:59,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128152457] [2024-11-22 22:51:59,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128152457] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:51:59,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [34871979] [2024-11-22 22:51:59,226 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 22:51:59,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:51:59,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:51:59,228 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:51:59,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-22 22:51:59,256 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 22:51:59,256 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:51:59,257 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 22:51:59,258 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:51:59,358 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-22 22:51:59,359 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:51:59,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [34871979] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:51:59,426 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-22 22:51:59,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 4] total 13 [2024-11-22 22:51:59,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418212900] [2024-11-22 22:51:59,427 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-22 22:51:59,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-22 22:51:59,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:51:59,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-22 22:51:59,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-11-22 22:51:59,428 INFO L87 Difference]: Start difference. First operand 300 states and 357 transitions. Second operand has 14 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 states have internal predecessors, (77), 6 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-22 22:51:59,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:51:59,778 INFO L93 Difference]: Finished difference Result 322 states and 383 transitions. [2024-11-22 22:51:59,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-22 22:51:59,778 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 states have internal predecessors, (77), 6 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 58 [2024-11-22 22:51:59,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:51:59,779 INFO L225 Difference]: With dead ends: 322 [2024-11-22 22:51:59,779 INFO L226 Difference]: Without dead ends: 310 [2024-11-22 22:51:59,780 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=293, Invalid=763, Unknown=0, NotChecked=0, Total=1056 [2024-11-22 22:51:59,780 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 120 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 22:51:59,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 109 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 22:51:59,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2024-11-22 22:51:59,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 310. [2024-11-22 22:51:59,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 285 states have (on average 1.119298245614035) internal successors, (319), 288 states have internal predecessors, (319), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-22 22:51:59,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 357 transitions. [2024-11-22 22:51:59,797 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 357 transitions. Word has length 58 [2024-11-22 22:51:59,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:51:59,797 INFO L471 AbstractCegarLoop]: Abstraction has 310 states and 357 transitions. [2024-11-22 22:51:59,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 states have internal predecessors, (77), 6 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-22 22:51:59,797 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 357 transitions. [2024-11-22 22:51:59,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-22 22:51:59,799 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:51:59,799 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:51:59,809 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-22 22:52:00,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-22 22:52:00,004 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-22 22:52:00,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:52:00,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1766875250, now seen corresponding path program 1 times [2024-11-22 22:52:00,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:52:00,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131093898] [2024-11-22 22:52:00,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:52:00,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:52:00,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:52:00,069 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-22 22:52:00,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:52:00,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131093898] [2024-11-22 22:52:00,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131093898] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:52:00,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314092646] [2024-11-22 22:52:00,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:52:00,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:52:00,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:52:00,071 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:52:00,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-22 22:52:00,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:52:00,105 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 22:52:00,106 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:52:00,157 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-22 22:52:00,158 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:52:00,241 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-22 22:52:00,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1314092646] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 22:52:00,242 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 22:52:00,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-22 22:52:00,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90517857] [2024-11-22 22:52:00,242 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 22:52:00,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 22:52:00,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:52:00,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 22:52:00,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-22 22:52:00,243 INFO L87 Difference]: Start difference. First operand 310 states and 357 transitions. Second operand has 11 states, 10 states have (on average 13.4) internal successors, (134), 11 states have internal predecessors, (134), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-22 22:52:00,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:52:00,355 INFO L93 Difference]: Finished difference Result 1042 states and 1262 transitions. [2024-11-22 22:52:00,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 22:52:00,355 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 13.4) internal successors, (134), 11 states have internal predecessors, (134), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 88 [2024-11-22 22:52:00,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:52:00,358 INFO L225 Difference]: With dead ends: 1042 [2024-11-22 22:52:00,358 INFO L226 Difference]: Without dead ends: 1040 [2024-11-22 22:52:00,359 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-22 22:52:00,359 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 20 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 22:52:00,359 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 119 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 22:52:00,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1040 states. [2024-11-22 22:52:00,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1040 to 1040. [2024-11-22 22:52:00,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1040 states, 969 states have (on average 1.0691434468524252) internal successors, (1036), 971 states have internal predecessors, (1036), 66 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-22 22:52:00,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 1168 transitions. [2024-11-22 22:52:00,397 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 1168 transitions. Word has length 88 [2024-11-22 22:52:00,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:52:00,397 INFO L471 AbstractCegarLoop]: Abstraction has 1040 states and 1168 transitions. [2024-11-22 22:52:00,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 13.4) internal successors, (134), 11 states have internal predecessors, (134), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-22 22:52:00,397 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 1168 transitions. [2024-11-22 22:52:00,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-22 22:52:00,398 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:52:00,398 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:52:00,405 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-22 22:52:00,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:52:00,599 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-22 22:52:00,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:52:00,600 INFO L85 PathProgramCache]: Analyzing trace with hash -932034271, now seen corresponding path program 1 times [2024-11-22 22:52:00,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:52:00,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26142967] [2024-11-22 22:52:00,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:52:00,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:52:00,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:52:00,647 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-22 22:52:00,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:52:00,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26142967] [2024-11-22 22:52:00,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26142967] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:52:00,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31331428] [2024-11-22 22:52:00,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:52:00,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:52:00,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:52:00,649 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:52:00,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-22 22:52:00,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:52:00,684 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 22:52:00,685 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:52:00,754 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 66 proven. 24 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 22:52:00,754 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:52:00,838 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 54 proven. 24 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 22:52:00,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [31331428] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 22:52:00,838 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 22:52:00,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 10 [2024-11-22 22:52:00,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445832428] [2024-11-22 22:52:00,839 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 22:52:00,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 22:52:00,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:52:00,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 22:52:00,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-22 22:52:00,840 INFO L87 Difference]: Start difference. First operand 1040 states and 1168 transitions. Second operand has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 9 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) [2024-11-22 22:52:01,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:52:01,141 INFO L93 Difference]: Finished difference Result 1934 states and 2170 transitions. [2024-11-22 22:52:01,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-22 22:52:01,142 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 9 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) Word has length 91 [2024-11-22 22:52:01,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:52:01,147 INFO L225 Difference]: With dead ends: 1934 [2024-11-22 22:52:01,147 INFO L226 Difference]: Without dead ends: 1630 [2024-11-22 22:52:01,148 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 173 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552 [2024-11-22 22:52:01,149 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 110 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 22:52:01,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 183 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 22:52:01,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1630 states. [2024-11-22 22:52:01,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1630 to 1243. [2024-11-22 22:52:01,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1243 states, 1160 states have (on average 1.0672413793103448) internal successors, (1238), 1162 states have internal predecessors, (1238), 78 states have call successors, (78), 2 states have call predecessors, (78), 2 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-22 22:52:01,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243 states to 1243 states and 1394 transitions. [2024-11-22 22:52:01,208 INFO L78 Accepts]: Start accepts. Automaton has 1243 states and 1394 transitions. Word has length 91 [2024-11-22 22:52:01,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:52:01,208 INFO L471 AbstractCegarLoop]: Abstraction has 1243 states and 1394 transitions. [2024-11-22 22:52:01,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 9 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) [2024-11-22 22:52:01,209 INFO L276 IsEmpty]: Start isEmpty. Operand 1243 states and 1394 transitions. [2024-11-22 22:52:01,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-22 22:52:01,209 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:52:01,209 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:52:01,216 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-22 22:52:01,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:52:01,414 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-22 22:52:01,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:52:01,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1317964823, now seen corresponding path program 1 times [2024-11-22 22:52:01,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:52:01,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110062904] [2024-11-22 22:52:01,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:52:01,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:52:01,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:52:01,495 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-22 22:52:01,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:52:01,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110062904] [2024-11-22 22:52:01,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110062904] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:52:01,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887697611] [2024-11-22 22:52:01,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:52:01,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:52:01,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:52:01,498 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:52:01,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-22 22:52:01,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:52:01,534 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 22:52:01,535 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:52:01,591 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-22 22:52:01,591 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:52:01,678 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-22 22:52:01,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1887697611] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 22:52:01,678 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 22:52:01,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-22 22:52:01,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327415759] [2024-11-22 22:52:01,678 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 22:52:01,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 22:52:01,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:52:01,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 22:52:01,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-22 22:52:01,679 INFO L87 Difference]: Start difference. First operand 1243 states and 1394 transitions. Second operand has 11 states, 10 states have (on average 14.0) internal successors, (140), 11 states have internal predecessors, (140), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-22 22:52:01,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:52:01,807 INFO L93 Difference]: Finished difference Result 2010 states and 2258 transitions. [2024-11-22 22:52:01,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 22:52:01,808 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 14.0) internal successors, (140), 11 states have internal predecessors, (140), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 91 [2024-11-22 22:52:01,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:52:01,813 INFO L225 Difference]: With dead ends: 2010 [2024-11-22 22:52:01,813 INFO L226 Difference]: Without dead ends: 2009 [2024-11-22 22:52:01,814 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-22 22:52:01,814 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 87 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 22:52:01,815 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 170 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 22:52:01,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2009 states. [2024-11-22 22:52:01,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2009 to 2001. [2024-11-22 22:52:01,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2001 states, 1870 states have (on average 1.0663101604278076) internal successors, (1994), 1872 states have internal predecessors, (1994), 126 states have call successors, (126), 2 states have call predecessors, (126), 2 states have return successors, (126), 126 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-22 22:52:01,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2001 states to 2001 states and 2246 transitions. [2024-11-22 22:52:01,897 INFO L78 Accepts]: Start accepts. Automaton has 2001 states and 2246 transitions. Word has length 91 [2024-11-22 22:52:01,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:52:01,897 INFO L471 AbstractCegarLoop]: Abstraction has 2001 states and 2246 transitions. [2024-11-22 22:52:01,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 14.0) internal successors, (140), 11 states have internal predecessors, (140), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-22 22:52:01,897 INFO L276 IsEmpty]: Start isEmpty. Operand 2001 states and 2246 transitions. [2024-11-22 22:52:01,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-22 22:52:01,898 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:52:01,898 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:52:01,904 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-22 22:52:02,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:52:02,102 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-22 22:52:02,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:52:02,102 INFO L85 PathProgramCache]: Analyzing trace with hash -607809200, now seen corresponding path program 1 times [2024-11-22 22:52:02,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:52:02,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660612655] [2024-11-22 22:52:02,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:52:02,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:52:02,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:52:02,185 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 47 proven. 104 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-22 22:52:02,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:52:02,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660612655] [2024-11-22 22:52:02,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660612655] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:52:02,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86579234] [2024-11-22 22:52:02,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:52:02,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:52:02,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:52:02,189 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:52:02,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-22 22:52:02,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:52:02,225 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 22:52:02,226 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:52:02,339 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 59 proven. 92 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-22 22:52:02,339 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:52:02,447 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 59 proven. 92 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-22 22:52:02,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [86579234] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 22:52:02,448 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 22:52:02,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 12 [2024-11-22 22:52:02,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899008542] [2024-11-22 22:52:02,448 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 22:52:02,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-22 22:52:02,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:52:02,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-22 22:52:02,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-22 22:52:02,449 INFO L87 Difference]: Start difference. First operand 2001 states and 2246 transitions. Second operand has 12 states, 12 states have (on average 12.166666666666666) internal successors, (146), 12 states have internal predecessors, (146), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-22 22:52:02,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:52:02,708 INFO L93 Difference]: Finished difference Result 4459 states and 5002 transitions. [2024-11-22 22:52:02,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 22:52:02,709 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 12.166666666666666) internal successors, (146), 12 states have internal predecessors, (146), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 116 [2024-11-22 22:52:02,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:52:02,718 INFO L225 Difference]: With dead ends: 4459 [2024-11-22 22:52:02,718 INFO L226 Difference]: Without dead ends: 3299 [2024-11-22 22:52:02,720 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 223 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-11-22 22:52:02,721 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 29 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 22:52:02,721 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 247 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 22:52:02,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3299 states. [2024-11-22 22:52:02,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3299 to 2298. [2024-11-22 22:52:02,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2298 states, 2149 states have (on average 1.0604932526756632) internal successors, (2279), 2151 states have internal predecessors, (2279), 144 states have call successors, (144), 2 states have call predecessors, (144), 2 states have return successors, (144), 144 states have call predecessors, (144), 144 states have call successors, (144) [2024-11-22 22:52:02,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2298 states to 2298 states and 2567 transitions. [2024-11-22 22:52:02,844 INFO L78 Accepts]: Start accepts. Automaton has 2298 states and 2567 transitions. Word has length 116 [2024-11-22 22:52:02,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:52:02,844 INFO L471 AbstractCegarLoop]: Abstraction has 2298 states and 2567 transitions. [2024-11-22 22:52:02,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.166666666666666) internal successors, (146), 12 states have internal predecessors, (146), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-22 22:52:02,844 INFO L276 IsEmpty]: Start isEmpty. Operand 2298 states and 2567 transitions. [2024-11-22 22:52:02,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-22 22:52:02,847 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:52:02,848 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:52:02,854 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-22 22:52:03,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-22 22:52:03,050 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-22 22:52:03,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:52:03,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1551203553, now seen corresponding path program 2 times [2024-11-22 22:52:03,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:52:03,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213591212] [2024-11-22 22:52:03,051 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 22:52:03,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:52:03,074 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 22:52:03,075 INFO L228 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-22 22:52:03,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [426881710] [2024-11-22 22:52:03,078 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 22:52:03,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:52:03,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:52:03,080 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:52:03,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-22 22:52:03,126 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 22:52:03,126 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:52:03,127 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-22 22:52:03,129 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:52:03,358 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 186 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-22 22:52:03,359 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:52:07,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:52:07,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213591212] [2024-11-22 22:52:07,653 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 22:52:07,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426881710] [2024-11-22 22:52:07,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [426881710] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:52:07,654 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-22 22:52:07,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-22 22:52:07,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354510776] [2024-11-22 22:52:07,654 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-22 22:52:07,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 22:52:07,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:52:07,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 22:52:07,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=92, Unknown=1, NotChecked=0, Total=132 [2024-11-22 22:52:07,655 INFO L87 Difference]: Start difference. First operand 2298 states and 2567 transitions. Second operand has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-22 22:52:07,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:52:07,848 INFO L93 Difference]: Finished difference Result 2589 states and 2888 transitions. [2024-11-22 22:52:07,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 22:52:07,848 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 136 [2024-11-22 22:52:07,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:52:07,854 INFO L225 Difference]: With dead ends: 2589 [2024-11-22 22:52:07,854 INFO L226 Difference]: Without dead ends: 2588 [2024-11-22 22:52:07,855 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=39, Invalid=92, Unknown=1, NotChecked=0, Total=132 [2024-11-22 22:52:07,855 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 19 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 22:52:07,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 185 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 22:52:07,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2588 states. [2024-11-22 22:52:07,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2588 to 2330. [2024-11-22 22:52:07,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2330 states, 2179 states have (on average 1.0596603946764571) internal successors, (2309), 2181 states have internal predecessors, (2309), 146 states have call successors, (146), 2 states have call predecessors, (146), 2 states have return successors, (146), 146 states have call predecessors, (146), 146 states have call successors, (146) [2024-11-22 22:52:07,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2330 states to 2330 states and 2601 transitions. [2024-11-22 22:52:07,939 INFO L78 Accepts]: Start accepts. Automaton has 2330 states and 2601 transitions. Word has length 136 [2024-11-22 22:52:07,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:52:07,939 INFO L471 AbstractCegarLoop]: Abstraction has 2330 states and 2601 transitions. [2024-11-22 22:52:07,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-22 22:52:07,940 INFO L276 IsEmpty]: Start isEmpty. Operand 2330 states and 2601 transitions. [2024-11-22 22:52:07,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-22 22:52:07,941 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:52:07,941 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:52:07,951 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-22 22:52:08,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:52:08,146 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-22 22:52:08,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:52:08,146 INFO L85 PathProgramCache]: Analyzing trace with hash -716297751, now seen corresponding path program 3 times [2024-11-22 22:52:08,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:52:08,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876929107] [2024-11-22 22:52:08,147 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 22:52:08,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:52:08,169 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-22 22:52:08,170 INFO L228 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-22 22:52:08,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2083195753] [2024-11-22 22:52:08,171 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 22:52:08,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:52:08,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:52:08,175 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:52:08,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-22 22:52:08,221 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-22 22:52:08,221 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:52:08,222 INFO L255 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-22 22:52:08,224 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:52:08,381 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-22 22:52:08,382 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:52:08,626 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-22 22:52:08,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:52:08,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876929107] [2024-11-22 22:52:08,626 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 22:52:08,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2083195753] [2024-11-22 22:52:08,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2083195753] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 22:52:08,627 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-22 22:52:08,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2024-11-22 22:52:08,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159281464] [2024-11-22 22:52:08,627 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-22 22:52:08,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-22 22:52:08,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:52:08,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-22 22:52:08,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-11-22 22:52:08,628 INFO L87 Difference]: Start difference. First operand 2330 states and 2601 transitions. Second operand has 14 states, 13 states have (on average 12.0) internal successors, (156), 14 states have internal predecessors, (156), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-22 22:52:09,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:52:09,399 INFO L93 Difference]: Finished difference Result 3162 states and 3521 transitions. [2024-11-22 22:52:09,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-22 22:52:09,399 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.0) internal successors, (156), 14 states have internal predecessors, (156), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 136 [2024-11-22 22:52:09,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:52:09,407 INFO L225 Difference]: With dead ends: 3162 [2024-11-22 22:52:09,407 INFO L226 Difference]: Without dead ends: 3161 [2024-11-22 22:52:09,408 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=372, Invalid=1188, Unknown=0, NotChecked=0, Total=1560 [2024-11-22 22:52:09,409 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 256 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 22:52:09,409 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 363 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 22:52:09,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3161 states. [2024-11-22 22:52:09,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3161 to 2385. [2024-11-22 22:52:09,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2385 states, 2231 states have (on average 1.0578216046615867) internal successors, (2360), 2233 states have internal predecessors, (2360), 149 states have call successors, (149), 2 states have call predecessors, (149), 2 states have return successors, (149), 149 states have call predecessors, (149), 149 states have call successors, (149) [2024-11-22 22:52:09,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2385 states to 2385 states and 2658 transitions. [2024-11-22 22:52:09,500 INFO L78 Accepts]: Start accepts. Automaton has 2385 states and 2658 transitions. Word has length 136 [2024-11-22 22:52:09,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:52:09,500 INFO L471 AbstractCegarLoop]: Abstraction has 2385 states and 2658 transitions. [2024-11-22 22:52:09,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.0) internal successors, (156), 14 states have internal predecessors, (156), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-22 22:52:09,501 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states and 2658 transitions. [2024-11-22 22:52:09,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-22 22:52:09,502 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:52:09,502 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:52:09,510 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-22 22:52:09,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:52:09,703 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-22 22:52:09,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:52:09,703 INFO L85 PathProgramCache]: Analyzing trace with hash 223845959, now seen corresponding path program 3 times [2024-11-22 22:52:09,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:52:09,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205950874] [2024-11-22 22:52:09,704 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 22:52:09,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:52:09,724 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-22 22:52:09,724 INFO L228 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-22 22:52:09,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [887308844] [2024-11-22 22:52:09,725 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 22:52:09,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:52:09,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:52:09,730 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:52:09,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-22 22:52:09,771 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-22 22:52:09,771 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:52:09,772 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 22:52:09,773 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:52:09,810 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 101 proven. 5 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2024-11-22 22:52:09,810 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:52:09,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:52:09,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205950874] [2024-11-22 22:52:09,955 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 22:52:09,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887308844] [2024-11-22 22:52:09,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [887308844] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:52:09,955 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-22 22:52:09,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-22 22:52:09,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923349304] [2024-11-22 22:52:09,956 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-22 22:52:09,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 22:52:09,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:52:09,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 22:52:09,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-22 22:52:09,957 INFO L87 Difference]: Start difference. First operand 2385 states and 2658 transitions. Second operand has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-22 22:52:10,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:52:10,122 INFO L93 Difference]: Finished difference Result 3415 states and 3801 transitions. [2024-11-22 22:52:10,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 22:52:10,123 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 136 [2024-11-22 22:52:10,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:52:10,129 INFO L225 Difference]: With dead ends: 3415 [2024-11-22 22:52:10,129 INFO L226 Difference]: Without dead ends: 2108 [2024-11-22 22:52:10,132 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-22 22:52:10,132 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 14 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 22:52:10,132 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 98 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 22:52:10,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2108 states. [2024-11-22 22:52:10,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2108 to 2107. [2024-11-22 22:52:10,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2107 states, 1970 states have (on average 1.0532994923857868) internal successors, (2075), 1972 states have internal predecessors, (2075), 132 states have call successors, (132), 2 states have call predecessors, (132), 2 states have return successors, (132), 132 states have call predecessors, (132), 132 states have call successors, (132) [2024-11-22 22:52:10,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2107 states to 2107 states and 2339 transitions. [2024-11-22 22:52:10,218 INFO L78 Accepts]: Start accepts. Automaton has 2107 states and 2339 transitions. Word has length 136 [2024-11-22 22:52:10,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:52:10,219 INFO L471 AbstractCegarLoop]: Abstraction has 2107 states and 2339 transitions. [2024-11-22 22:52:10,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-22 22:52:10,219 INFO L276 IsEmpty]: Start isEmpty. Operand 2107 states and 2339 transitions. [2024-11-22 22:52:10,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-22 22:52:10,221 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:52:10,221 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:52:10,231 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-22 22:52:10,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:52:10,426 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-22 22:52:10,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:52:10,426 INFO L85 PathProgramCache]: Analyzing trace with hash 528007278, now seen corresponding path program 4 times [2024-11-22 22:52:10,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:52:10,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813468185] [2024-11-22 22:52:10,426 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 22:52:10,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:52:10,444 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 22:52:10,445 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:52:10,555 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 69 proven. 248 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-22 22:52:10,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:52:10,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813468185] [2024-11-22 22:52:10,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813468185] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:52:10,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [121701349] [2024-11-22 22:52:10,555 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 22:52:10,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:52:10,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:52:10,557 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:52:10,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-22 22:52:10,621 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 22:52:10,622 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:52:10,622 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-22 22:52:10,625 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:52:10,803 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 109 proven. 208 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-22 22:52:10,803 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:52:10,961 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 109 proven. 208 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-22 22:52:10,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [121701349] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 22:52:10,961 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 22:52:10,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 14 [2024-11-22 22:52:10,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583939935] [2024-11-22 22:52:10,961 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 22:52:10,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-22 22:52:10,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:52:10,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-22 22:52:10,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-11-22 22:52:10,963 INFO L87 Difference]: Start difference. First operand 2107 states and 2339 transitions. Second operand has 14 states, 14 states have (on average 12.5) internal successors, (175), 14 states have internal predecessors, (175), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-22 22:52:11,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:52:11,323 INFO L93 Difference]: Finished difference Result 4286 states and 4766 transitions. [2024-11-22 22:52:11,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 22:52:11,323 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 12.5) internal successors, (175), 14 states have internal predecessors, (175), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) Word has length 156 [2024-11-22 22:52:11,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:52:11,331 INFO L225 Difference]: With dead ends: 4286 [2024-11-22 22:52:11,332 INFO L226 Difference]: Without dead ends: 3262 [2024-11-22 22:52:11,333 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 300 SyntacticMatches, 8 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2024-11-22 22:52:11,334 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 30 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 22:52:11,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 368 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 22:52:11,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3262 states. [2024-11-22 22:52:11,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3262 to 2500. [2024-11-22 22:52:11,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2500 states, 2339 states have (on average 1.0470286447199657) internal successors, (2449), 2341 states have internal predecessors, (2449), 156 states have call successors, (156), 2 states have call predecessors, (156), 2 states have return successors, (156), 156 states have call predecessors, (156), 156 states have call successors, (156) [2024-11-22 22:52:11,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2500 states to 2500 states and 2761 transitions. [2024-11-22 22:52:11,454 INFO L78 Accepts]: Start accepts. Automaton has 2500 states and 2761 transitions. Word has length 156 [2024-11-22 22:52:11,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:52:11,455 INFO L471 AbstractCegarLoop]: Abstraction has 2500 states and 2761 transitions. [2024-11-22 22:52:11,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.5) internal successors, (175), 14 states have internal predecessors, (175), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-22 22:52:11,455 INFO L276 IsEmpty]: Start isEmpty. Operand 2500 states and 2761 transitions. [2024-11-22 22:52:11,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-22 22:52:11,457 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:52:11,457 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:52:11,463 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-22 22:52:11,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-22 22:52:11,658 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-22 22:52:11,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:52:11,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1631783107, now seen corresponding path program 5 times [2024-11-22 22:52:11,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:52:11,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710645286] [2024-11-22 22:52:11,659 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 22:52:11,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:52:11,678 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-11-22 22:52:11,678 INFO L228 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-22 22:52:11,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [4861642] [2024-11-22 22:52:11,678 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 22:52:11,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:52:11,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:52:11,680 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:52:11,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-22 22:52:11,734 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-11-22 22:52:11,735 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:52:11,739 INFO L255 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 56 conjuncts are in the unsatisfiable core [2024-11-22 22:52:11,741 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:52:13,355 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 12 proven. 436 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-11-22 22:52:13,356 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:52:13,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:52:13,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710645286] [2024-11-22 22:52:13,688 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 22:52:13,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4861642] [2024-11-22 22:52:13,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4861642] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:52:13,688 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-22 22:52:13,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2024-11-22 22:52:13,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183654234] [2024-11-22 22:52:13,688 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-22 22:52:13,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-22 22:52:13,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:52:13,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-22 22:52:13,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=1157, Unknown=0, NotChecked=0, Total=1332 [2024-11-22 22:52:13,690 INFO L87 Difference]: Start difference. First operand 2500 states and 2761 transitions. Second operand has 33 states, 32 states have (on average 4.3125) internal successors, (138), 31 states have internal predecessors, (138), 10 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-22 22:52:15,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:52:15,178 INFO L93 Difference]: Finished difference Result 3808 states and 4208 transitions. [2024-11-22 22:52:15,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-22 22:52:15,178 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 4.3125) internal successors, (138), 31 states have internal predecessors, (138), 10 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Word has length 176 [2024-11-22 22:52:15,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:52:15,184 INFO L225 Difference]: With dead ends: 3808 [2024-11-22 22:52:15,185 INFO L226 Difference]: Without dead ends: 2712 [2024-11-22 22:52:15,186 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 150 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 509 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=334, Invalid=2018, Unknown=0, NotChecked=0, Total=2352 [2024-11-22 22:52:15,187 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 55 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 2878 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 2881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-22 22:52:15,187 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 658 Invalid, 2881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2878 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-22 22:52:15,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2712 states. [2024-11-22 22:52:15,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2712 to 2564. [2024-11-22 22:52:15,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2564 states, 2399 states have (on average 1.0458524385160484) internal successors, (2509), 2401 states have internal predecessors, (2509), 160 states have call successors, (160), 2 states have call predecessors, (160), 2 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) [2024-11-22 22:52:15,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2564 states to 2564 states and 2829 transitions. [2024-11-22 22:52:15,280 INFO L78 Accepts]: Start accepts. Automaton has 2564 states and 2829 transitions. Word has length 176 [2024-11-22 22:52:15,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:52:15,280 INFO L471 AbstractCegarLoop]: Abstraction has 2564 states and 2829 transitions. [2024-11-22 22:52:15,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 4.3125) internal successors, (138), 31 states have internal predecessors, (138), 10 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-22 22:52:15,280 INFO L276 IsEmpty]: Start isEmpty. Operand 2564 states and 2829 transitions. [2024-11-22 22:52:15,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-22 22:52:15,282 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:52:15,282 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:52:15,289 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-22 22:52:15,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-22 22:52:15,486 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-22 22:52:15,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:52:15,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1879641597, now seen corresponding path program 2 times [2024-11-22 22:52:15,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:52:15,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381201427] [2024-11-22 22:52:15,487 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 22:52:15,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:52:15,498 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 22:52:15,498 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:52:15,668 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 536 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-22 22:52:15,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:52:15,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381201427] [2024-11-22 22:52:15,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381201427] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:52:15,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1473719631] [2024-11-22 22:52:15,669 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 22:52:15,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:52:15,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:52:15,674 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:52:15,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-22 22:52:15,725 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 22:52:15,725 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:52:15,726 INFO L255 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-22 22:52:15,728 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:52:15,853 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 536 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-22 22:52:15,853 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:52:16,110 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 536 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-22 22:52:16,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1473719631] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 22:52:16,111 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 22:52:16,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-11-22 22:52:16,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800496805] [2024-11-22 22:52:16,111 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 22:52:16,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-22 22:52:16,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:52:16,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-22 22:52:16,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-11-22 22:52:16,114 INFO L87 Difference]: Start difference. First operand 2564 states and 2829 transitions. Second operand has 21 states, 20 states have (on average 14.2) internal successors, (284), 21 states have internal predecessors, (284), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2024-11-22 22:52:16,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:52:16,462 INFO L93 Difference]: Finished difference Result 4485 states and 5109 transitions. [2024-11-22 22:52:16,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-22 22:52:16,463 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 14.2) internal successors, (284), 21 states have internal predecessors, (284), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) Word has length 188 [2024-11-22 22:52:16,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:52:16,486 INFO L225 Difference]: With dead ends: 4485 [2024-11-22 22:52:16,486 INFO L226 Difference]: Without dead ends: 4484 [2024-11-22 22:52:16,487 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-11-22 22:52:16,488 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 26 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 22:52:16,488 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 151 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 22:52:16,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4484 states. [2024-11-22 22:52:16,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4484 to 4484. [2024-11-22 22:52:16,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4484 states, 4199 states have (on average 1.0547749464158134) internal successors, (4429), 4201 states have internal predecessors, (4429), 280 states have call successors, (280), 2 states have call predecessors, (280), 2 states have return successors, (280), 280 states have call predecessors, (280), 280 states have call successors, (280) [2024-11-22 22:52:16,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4484 states to 4484 states and 4989 transitions. [2024-11-22 22:52:16,651 INFO L78 Accepts]: Start accepts. Automaton has 4484 states and 4989 transitions. Word has length 188 [2024-11-22 22:52:16,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:52:16,652 INFO L471 AbstractCegarLoop]: Abstraction has 4484 states and 4989 transitions. [2024-11-22 22:52:16,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 14.2) internal successors, (284), 21 states have internal predecessors, (284), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2024-11-22 22:52:16,652 INFO L276 IsEmpty]: Start isEmpty. Operand 4484 states and 4989 transitions. [2024-11-22 22:52:16,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-22 22:52:16,654 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:52:16,654 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:52:16,661 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-22 22:52:16,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-22 22:52:16,859 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-22 22:52:16,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:52:16,859 INFO L85 PathProgramCache]: Analyzing trace with hash -821238662, now seen corresponding path program 2 times [2024-11-22 22:52:16,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:52:16,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771770465] [2024-11-22 22:52:16,859 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 22:52:16,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:52:16,876 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 22:52:16,876 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:52:17,031 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 0 proven. 560 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-22 22:52:17,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:52:17,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771770465] [2024-11-22 22:52:17,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771770465] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:52:17,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717948418] [2024-11-22 22:52:17,032 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 22:52:17,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:52:17,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:52:17,033 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:52:17,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-22 22:52:17,090 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 22:52:17,090 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:52:17,091 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-22 22:52:17,093 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:52:17,215 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 0 proven. 560 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-22 22:52:17,216 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:52:17,457 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 0 proven. 560 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-22 22:52:17,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [717948418] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 22:52:17,458 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 22:52:17,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-11-22 22:52:17,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594249224] [2024-11-22 22:52:17,458 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 22:52:17,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-22 22:52:17,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:52:17,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-22 22:52:17,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-11-22 22:52:17,461 INFO L87 Difference]: Start difference. First operand 4484 states and 4989 transitions. Second operand has 21 states, 20 states have (on average 14.5) internal successors, (290), 21 states have internal predecessors, (290), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2024-11-22 22:52:17,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:52:17,948 INFO L93 Difference]: Finished difference Result 8493 states and 9479 transitions. [2024-11-22 22:52:17,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-22 22:52:17,949 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 14.5) internal successors, (290), 21 states have internal predecessors, (290), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) Word has length 191 [2024-11-22 22:52:17,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:52:17,962 INFO L225 Difference]: With dead ends: 8493 [2024-11-22 22:52:17,962 INFO L226 Difference]: Without dead ends: 8492 [2024-11-22 22:52:17,964 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 371 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-11-22 22:52:17,965 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 314 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 22:52:17,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 301 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 22:52:17,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8492 states. [2024-11-22 22:52:18,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8492 to 8474. [2024-11-22 22:52:18,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8474 states, 7939 states have (on average 1.0554225973044464) internal successors, (8379), 7941 states have internal predecessors, (8379), 530 states have call successors, (530), 2 states have call predecessors, (530), 2 states have return successors, (530), 530 states have call predecessors, (530), 530 states have call successors, (530) [2024-11-22 22:52:18,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8474 states to 8474 states and 9439 transitions. [2024-11-22 22:52:18,323 INFO L78 Accepts]: Start accepts. Automaton has 8474 states and 9439 transitions. Word has length 191 [2024-11-22 22:52:18,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:52:18,323 INFO L471 AbstractCegarLoop]: Abstraction has 8474 states and 9439 transitions. [2024-11-22 22:52:18,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 14.5) internal successors, (290), 21 states have internal predecessors, (290), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2024-11-22 22:52:18,324 INFO L276 IsEmpty]: Start isEmpty. Operand 8474 states and 9439 transitions. [2024-11-22 22:52:18,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-22 22:52:18,326 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:52:18,326 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:52:18,335 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-22 22:52:18,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:52:18,527 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-22 22:52:18,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:52:18,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1537771124, now seen corresponding path program 6 times [2024-11-22 22:52:18,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:52:18,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632784214] [2024-11-22 22:52:18,528 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-22 22:52:18,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:52:18,558 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2024-11-22 22:52:18,558 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:52:18,838 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 31 proven. 516 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-22 22:52:18,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:52:18,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632784214] [2024-11-22 22:52:18,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632784214] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:52:18,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [517910702] [2024-11-22 22:52:18,839 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-22 22:52:18,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:52:18,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:52:18,842 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:52:18,843 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-22 22:52:18,905 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2024-11-22 22:52:18,905 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:52:18,906 INFO L255 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-22 22:52:18,908 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:52:19,235 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 175 proven. 372 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-22 22:52:19,235 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:52:19,485 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 175 proven. 372 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-22 22:52:19,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [517910702] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 22:52:19,485 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 22:52:19,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 26 [2024-11-22 22:52:19,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955369097] [2024-11-22 22:52:19,485 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 22:52:19,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-22 22:52:19,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:52:19,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-22 22:52:19,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2024-11-22 22:52:19,487 INFO L87 Difference]: Start difference. First operand 8474 states and 9439 transitions. Second operand has 26 states, 26 states have (on average 13.0) internal successors, (338), 26 states have internal predecessors, (338), 23 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 23 states have call predecessors, (24), 23 states have call successors, (24) [2024-11-22 22:52:20,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:52:20,938 INFO L93 Difference]: Finished difference Result 19634 states and 21917 transitions. [2024-11-22 22:52:20,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-22 22:52:20,939 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 13.0) internal successors, (338), 26 states have internal predecessors, (338), 23 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 23 states have call predecessors, (24), 23 states have call successors, (24) Word has length 196 [2024-11-22 22:52:20,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:52:20,985 INFO L225 Difference]: With dead ends: 19634 [2024-11-22 22:52:20,988 INFO L226 Difference]: Without dead ends: 14150 [2024-11-22 22:52:21,006 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 372 SyntacticMatches, 6 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 567 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=326, Invalid=1654, Unknown=0, NotChecked=0, Total=1980 [2024-11-22 22:52:21,010 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 70 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 1860 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 1877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 22:52:21,011 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 966 Invalid, 1877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1860 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 22:52:21,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14150 states. [2024-11-22 22:52:21,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14150 to 9557. [2024-11-22 22:52:21,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9557 states, 8954 states have (on average 1.0504802322984141) internal successors, (9406), 8956 states have internal predecessors, (9406), 598 states have call successors, (598), 2 states have call predecessors, (598), 2 states have return successors, (598), 598 states have call predecessors, (598), 598 states have call successors, (598) [2024-11-22 22:52:21,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9557 states to 9557 states and 10602 transitions. [2024-11-22 22:52:21,549 INFO L78 Accepts]: Start accepts. Automaton has 9557 states and 10602 transitions. Word has length 196 [2024-11-22 22:52:21,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:52:21,549 INFO L471 AbstractCegarLoop]: Abstraction has 9557 states and 10602 transitions. [2024-11-22 22:52:21,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 13.0) internal successors, (338), 26 states have internal predecessors, (338), 23 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 23 states have call predecessors, (24), 23 states have call successors, (24) [2024-11-22 22:52:21,550 INFO L276 IsEmpty]: Start isEmpty. Operand 9557 states and 10602 transitions. [2024-11-22 22:52:21,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-22 22:52:21,552 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:52:21,552 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:52:21,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-22 22:52:21,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:52:21,753 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-22 22:52:21,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:52:21,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1191162710, now seen corresponding path program 7 times [2024-11-22 22:52:21,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:52:21,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958333762] [2024-11-22 22:52:21,754 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-22 22:52:21,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:52:21,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:52:21,929 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 179 proven. 338 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-22 22:52:21,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:52:21,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958333762] [2024-11-22 22:52:21,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958333762] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:52:21,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216031344] [2024-11-22 22:52:21,930 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-22 22:52:21,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:52:21,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:52:21,932 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:52:21,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-22 22:52:21,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:52:21,980 INFO L255 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-22 22:52:21,982 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:52:22,323 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 317 proven. 200 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-22 22:52:22,323 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:52:22,574 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 179 proven. 338 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-22 22:52:22,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216031344] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 22:52:22,575 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 22:52:22,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-11-22 22:52:22,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151184562] [2024-11-22 22:52:22,575 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 22:52:22,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-22 22:52:22,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:52:22,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-22 22:52:22,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2024-11-22 22:52:22,577 INFO L87 Difference]: Start difference. First operand 9557 states and 10602 transitions. Second operand has 22 states, 22 states have (on average 14.454545454545455) internal successors, (318), 22 states have internal predecessors, (318), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) [2024-11-22 22:52:23,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:52:23,677 INFO L93 Difference]: Finished difference Result 24474 states and 27278 transitions. [2024-11-22 22:52:23,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-22 22:52:23,678 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 14.454545454545455) internal successors, (318), 22 states have internal predecessors, (318), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) Word has length 196 [2024-11-22 22:52:23,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:52:23,708 INFO L225 Difference]: With dead ends: 24474 [2024-11-22 22:52:23,708 INFO L226 Difference]: Without dead ends: 18131 [2024-11-22 22:52:23,716 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 378 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=272, Invalid=784, Unknown=0, NotChecked=0, Total=1056 [2024-11-22 22:52:23,717 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 23 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 22:52:23,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 362 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 22:52:23,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18131 states. [2024-11-22 22:52:24,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18131 to 8930. [2024-11-22 22:52:24,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8930 states, 8365 states have (on average 1.0485355648535566) internal successors, (8771), 8367 states have internal predecessors, (8771), 560 states have call successors, (560), 2 states have call predecessors, (560), 2 states have return successors, (560), 560 states have call predecessors, (560), 560 states have call successors, (560) [2024-11-22 22:52:24,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8930 states to 8930 states and 9891 transitions. [2024-11-22 22:52:24,302 INFO L78 Accepts]: Start accepts. Automaton has 8930 states and 9891 transitions. Word has length 196 [2024-11-22 22:52:24,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:52:24,302 INFO L471 AbstractCegarLoop]: Abstraction has 8930 states and 9891 transitions. [2024-11-22 22:52:24,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 14.454545454545455) internal successors, (318), 22 states have internal predecessors, (318), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) [2024-11-22 22:52:24,303 INFO L276 IsEmpty]: Start isEmpty. Operand 8930 states and 9891 transitions. [2024-11-22 22:52:24,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-22 22:52:24,309 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:52:24,309 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:52:24,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-22 22:52:24,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-11-22 22:52:24,510 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-22 22:52:24,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:52:24,510 INFO L85 PathProgramCache]: Analyzing trace with hash 200406363, now seen corresponding path program 8 times [2024-11-22 22:52:24,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:52:24,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659349520] [2024-11-22 22:52:24,510 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 22:52:24,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:52:24,529 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 22:52:24,529 INFO L228 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-22 22:52:24,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [105872719] [2024-11-22 22:52:24,531 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 22:52:24,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:52:24,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:52:24,533 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:52:24,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-22 22:52:24,584 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 22:52:24,584 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:52:24,587 INFO L255 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-22 22:52:24,588 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:52:25,095 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 542 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2024-11-22 22:52:25,095 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:52:25,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:52:25,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659349520] [2024-11-22 22:52:25,241 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 22:52:25,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105872719] [2024-11-22 22:52:25,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105872719] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:52:25,241 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-22 22:52:25,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-22 22:52:25,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820528877] [2024-11-22 22:52:25,242 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-22 22:52:25,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 22:52:25,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:52:25,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 22:52:25,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-22 22:52:25,243 INFO L87 Difference]: Start difference. First operand 8930 states and 9891 transitions. Second operand has 10 states, 9 states have (on average 11.88888888888889) internal successors, (107), 10 states have internal predecessors, (107), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-22 22:52:25,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:52:25,740 INFO L93 Difference]: Finished difference Result 9541 states and 10568 transitions. [2024-11-22 22:52:25,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 22:52:25,744 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.88888888888889) internal successors, (107), 10 states have internal predecessors, (107), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 216 [2024-11-22 22:52:25,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:52:25,760 INFO L225 Difference]: With dead ends: 9541 [2024-11-22 22:52:25,760 INFO L226 Difference]: Without dead ends: 9540 [2024-11-22 22:52:25,763 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-22 22:52:25,763 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 20 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 22:52:25,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 320 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 22:52:25,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9540 states. [2024-11-22 22:52:26,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9540 to 9240. [2024-11-22 22:52:26,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9240 states, 8656 states have (on average 1.0486367837338262) internal successors, (9077), 8658 states have internal predecessors, (9077), 579 states have call successors, (579), 2 states have call predecessors, (579), 2 states have return successors, (579), 579 states have call predecessors, (579), 579 states have call successors, (579) [2024-11-22 22:52:26,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9240 states to 9240 states and 10235 transitions. [2024-11-22 22:52:26,160 INFO L78 Accepts]: Start accepts. Automaton has 9240 states and 10235 transitions. Word has length 216 [2024-11-22 22:52:26,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:52:26,161 INFO L471 AbstractCegarLoop]: Abstraction has 9240 states and 10235 transitions. [2024-11-22 22:52:26,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.88888888888889) internal successors, (107), 10 states have internal predecessors, (107), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-22 22:52:26,161 INFO L276 IsEmpty]: Start isEmpty. Operand 9240 states and 10235 transitions. [2024-11-22 22:52:26,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-11-22 22:52:26,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:52:26,164 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:52:26,172 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-22 22:52:26,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-22 22:52:26,369 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-22 22:52:26,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:52:26,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1429226326, now seen corresponding path program 9 times [2024-11-22 22:52:26,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:52:26,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691621412] [2024-11-22 22:52:26,369 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 22:52:26,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:52:26,395 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2024-11-22 22:52:26,397 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:52:26,795 INFO L134 CoverageAnalysis]: Checked inductivity of 1065 backedges. 185 proven. 710 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2024-11-22 22:52:26,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:52:26,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691621412] [2024-11-22 22:52:26,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691621412] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:52:26,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1294726111] [2024-11-22 22:52:26,795 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 22:52:26,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:52:26,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:52:26,799 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:52:26,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-22 22:52:26,859 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-22 22:52:26,859 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:52:26,860 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-22 22:52:26,863 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:52:27,266 INFO L134 CoverageAnalysis]: Checked inductivity of 1065 backedges. 0 proven. 621 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2024-11-22 22:52:27,267 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:52:27,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1294726111] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:52:27,470 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-22 22:52:27,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 9] total 27 [2024-11-22 22:52:27,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213525836] [2024-11-22 22:52:27,470 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-22 22:52:27,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-22 22:52:27,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:52:27,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-22 22:52:27,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=774, Unknown=0, NotChecked=0, Total=870 [2024-11-22 22:52:27,471 INFO L87 Difference]: Start difference. First operand 9240 states and 10235 transitions. Second operand has 27 states, 27 states have (on average 10.333333333333334) internal successors, (279), 27 states have internal predecessors, (279), 18 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) [2024-11-22 22:52:31,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:52:31,421 INFO L93 Difference]: Finished difference Result 19617 states and 21799 transitions. [2024-11-22 22:52:31,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2024-11-22 22:52:31,422 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 10.333333333333334) internal successors, (279), 27 states have internal predecessors, (279), 18 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) Word has length 236 [2024-11-22 22:52:31,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:52:31,452 INFO L225 Difference]: With dead ends: 19617 [2024-11-22 22:52:31,452 INFO L226 Difference]: Without dead ends: 14227 [2024-11-22 22:52:31,472 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3983 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1156, Invalid=11726, Unknown=0, NotChecked=0, Total=12882 [2024-11-22 22:52:31,473 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 443 mSDsluCounter, 812 mSDsCounter, 0 mSdLazyCounter, 4696 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 870 SdHoareTripleChecker+Invalid, 4739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 4696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-22 22:52:31,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 870 Invalid, 4739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 4696 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-22 22:52:31,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14227 states. [2024-11-22 22:52:32,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14227 to 10372. [2024-11-22 22:52:32,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10372 states, 9717 states have (on average 1.0434290418853556) internal successors, (10139), 9719 states have internal predecessors, (10139), 650 states have call successors, (650), 2 states have call predecessors, (650), 2 states have return successors, (650), 650 states have call predecessors, (650), 650 states have call successors, (650) [2024-11-22 22:52:32,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10372 states to 10372 states and 11439 transitions. [2024-11-22 22:52:32,274 INFO L78 Accepts]: Start accepts. Automaton has 10372 states and 11439 transitions. Word has length 236 [2024-11-22 22:52:32,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:52:32,274 INFO L471 AbstractCegarLoop]: Abstraction has 10372 states and 11439 transitions. [2024-11-22 22:52:32,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 10.333333333333334) internal successors, (279), 27 states have internal predecessors, (279), 18 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) [2024-11-22 22:52:32,274 INFO L276 IsEmpty]: Start isEmpty. Operand 10372 states and 11439 transitions. [2024-11-22 22:52:32,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2024-11-22 22:52:32,277 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:52:32,277 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:52:32,283 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-22 22:52:32,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:52:32,482 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-22 22:52:32,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:52:32,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1466466951, now seen corresponding path program 10 times [2024-11-22 22:52:32,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:52:32,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492604536] [2024-11-22 22:52:32,483 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 22:52:32,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:52:32,507 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 22:52:32,508 INFO L228 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-22 22:52:32,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1816411042] [2024-11-22 22:52:32,509 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 22:52:32,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:52:32,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:52:32,513 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:52:32,517 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-22 22:52:32,580 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 22:52:32,580 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:52:32,582 INFO L255 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 80 conjuncts are in the unsatisfiable core [2024-11-22 22:52:32,584 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:52:34,311 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-22 22:52:34,804 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-22 22:52:35,323 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2024-11-22 22:52:35,990 WARN L672 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2024-11-22 22:52:36,624 WARN L672 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2024-11-22 22:52:37,269 WARN L672 sPolynomialRelations]: Constructing 2048(two to the power of 11 dual juncts. [2024-11-22 22:52:37,412 WARN L672 sPolynomialRelations]: Constructing 4096(two to the power of 12 dual juncts. [2024-11-22 22:52:37,794 INFO L134 CoverageAnalysis]: Checked inductivity of 1280 backedges. 30 proven. 1045 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2024-11-22 22:52:37,794 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:52:38,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:52:38,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492604536] [2024-11-22 22:52:38,026 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 22:52:38,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1816411042] [2024-11-22 22:52:38,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1816411042] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:52:38,026 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-22 22:52:38,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45] total 45 [2024-11-22 22:52:38,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110396016] [2024-11-22 22:52:38,027 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-22 22:52:38,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-11-22 22:52:38,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:52:38,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-11-22 22:52:38,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=252, Invalid=2100, Unknown=0, NotChecked=0, Total=2352 [2024-11-22 22:52:38,028 INFO L87 Difference]: Start difference. First operand 10372 states and 11439 transitions. Second operand has 46 states, 44 states have (on average 4.5) internal successors, (198), 43 states have internal predecessors, (198), 14 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-22 22:52:42,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:52:42,243 INFO L93 Difference]: Finished difference Result 10987 states and 12118 transitions. [2024-11-22 22:52:42,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-11-22 22:52:42,243 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 44 states have (on average 4.5) internal successors, (198), 43 states have internal predecessors, (198), 14 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) Word has length 256 [2024-11-22 22:52:42,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:52:42,260 INFO L225 Difference]: With dead ends: 10987 [2024-11-22 22:52:42,261 INFO L226 Difference]: Without dead ends: 10986 [2024-11-22 22:52:42,265 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1214 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=535, Invalid=4721, Unknown=0, NotChecked=0, Total=5256 [2024-11-22 22:52:42,265 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 131 mSDsluCounter, 831 mSDsCounter, 0 mSdLazyCounter, 5446 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 5460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 5446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-22 22:52:42,266 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 879 Invalid, 5460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 5446 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-22 22:52:42,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10986 states. [2024-11-22 22:52:42,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10986 to 10682. [2024-11-22 22:52:42,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10682 states, 10008 states have (on average 1.0435651478816947) internal successors, (10444), 10010 states have internal predecessors, (10444), 669 states have call successors, (669), 2 states have call predecessors, (669), 2 states have return successors, (669), 669 states have call predecessors, (669), 669 states have call successors, (669) [2024-11-22 22:52:42,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10682 states to 10682 states and 11782 transitions. [2024-11-22 22:52:42,951 INFO L78 Accepts]: Start accepts. Automaton has 10682 states and 11782 transitions. Word has length 256 [2024-11-22 22:52:42,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:52:42,952 INFO L471 AbstractCegarLoop]: Abstraction has 10682 states and 11782 transitions. [2024-11-22 22:52:42,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 44 states have (on average 4.5) internal successors, (198), 43 states have internal predecessors, (198), 14 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-22 22:52:42,952 INFO L276 IsEmpty]: Start isEmpty. Operand 10682 states and 11782 transitions. [2024-11-22 22:52:42,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2024-11-22 22:52:42,954 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:52:42,955 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:52:42,963 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-22 22:52:43,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:52:43,159 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-22 22:52:43,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:52:43,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1160014579, now seen corresponding path program 11 times [2024-11-22 22:52:43,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:52:43,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613952261] [2024-11-22 22:52:43,160 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 22:52:43,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:52:43,192 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2024-11-22 22:52:43,193 INFO L228 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-22 22:52:43,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [158379736] [2024-11-22 22:52:43,194 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 22:52:43,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:52:43,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:52:43,197 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:52:43,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-22 22:52:43,277 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2024-11-22 22:52:43,277 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:52:43,284 INFO L255 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-11-22 22:52:43,287 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:52:44,480 INFO L134 CoverageAnalysis]: Checked inductivity of 1232 backedges. 45 proven. 976 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2024-11-22 22:52:44,480 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:52:44,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:52:44,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613952261] [2024-11-22 22:52:44,628 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 22:52:44,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158379736] [2024-11-22 22:52:44,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [158379736] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:52:44,628 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-22 22:52:44,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2024-11-22 22:52:44,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402014340] [2024-11-22 22:52:44,628 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-22 22:52:44,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-22 22:52:44,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:52:44,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-22 22:52:44,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=867, Unknown=0, NotChecked=0, Total=992 [2024-11-22 22:52:44,630 INFO L87 Difference]: Start difference. First operand 10682 states and 11782 transitions. Second operand has 30 states, 29 states have (on average 6.103448275862069) internal successors, (177), 30 states have internal predecessors, (177), 12 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 11 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-22 22:52:46,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:52:46,002 INFO L93 Difference]: Finished difference Result 11455 states and 12601 transitions. [2024-11-22 22:52:46,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-22 22:52:46,003 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 6.103448275862069) internal successors, (177), 30 states have internal predecessors, (177), 12 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 11 states have call predecessors, (13), 12 states have call successors, (13) Word has length 256 [2024-11-22 22:52:46,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:52:46,017 INFO L225 Difference]: With dead ends: 11455 [2024-11-22 22:52:46,018 INFO L226 Difference]: Without dead ends: 11194 [2024-11-22 22:52:46,021 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=356, Invalid=1996, Unknown=0, NotChecked=0, Total=2352 [2024-11-22 22:52:46,022 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 44 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 1485 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 1493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 22:52:46,022 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 425 Invalid, 1493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1485 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 22:52:46,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11194 states. [2024-11-22 22:52:46,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11194 to 10682. [2024-11-22 22:52:46,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10682 states, 10008 states have (on average 1.0432653876898481) internal successors, (10441), 10010 states have internal predecessors, (10441), 669 states have call successors, (669), 2 states have call predecessors, (669), 2 states have return successors, (669), 669 states have call predecessors, (669), 669 states have call successors, (669) [2024-11-22 22:52:46,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10682 states to 10682 states and 11779 transitions. [2024-11-22 22:52:46,547 INFO L78 Accepts]: Start accepts. Automaton has 10682 states and 11779 transitions. Word has length 256 [2024-11-22 22:52:46,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:52:46,547 INFO L471 AbstractCegarLoop]: Abstraction has 10682 states and 11779 transitions. [2024-11-22 22:52:46,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 6.103448275862069) internal successors, (177), 30 states have internal predecessors, (177), 12 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 11 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-22 22:52:46,547 INFO L276 IsEmpty]: Start isEmpty. Operand 10682 states and 11779 transitions. [2024-11-22 22:52:46,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2024-11-22 22:52:46,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:52:46,550 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 11, 11, 11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:52:46,556 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-11-22 22:52:46,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:52:46,755 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-22 22:52:46,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:52:46,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1297058248, now seen corresponding path program 12 times [2024-11-22 22:52:46,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:52:46,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564570552] [2024-11-22 22:52:46,756 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-22 22:52:46,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:52:46,782 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2024-11-22 22:52:46,782 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:52:47,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1515 backedges. 43 proven. 1156 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-22 22:52:47,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:52:47,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564570552] [2024-11-22 22:52:47,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564570552] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:52:47,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [458161212] [2024-11-22 22:52:47,090 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-22 22:52:47,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:52:47,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:52:47,091 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:52:47,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-22 22:52:47,227 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2024-11-22 22:52:47,227 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:52:47,229 INFO L255 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-22 22:52:47,231 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:52:47,698 INFO L134 CoverageAnalysis]: Checked inductivity of 1515 backedges. 355 proven. 844 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-22 22:52:47,699 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:52:48,103 INFO L134 CoverageAnalysis]: Checked inductivity of 1515 backedges. 355 proven. 844 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-22 22:52:48,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [458161212] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 22:52:48,103 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 22:52:48,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 36 [2024-11-22 22:52:48,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663664042] [2024-11-22 22:52:48,104 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 22:52:48,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-22 22:52:48,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:52:48,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-22 22:52:48,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=214, Invalid=1046, Unknown=0, NotChecked=0, Total=1260 [2024-11-22 22:52:48,106 INFO L87 Difference]: Start difference. First operand 10682 states and 11779 transitions. Second operand has 36 states, 36 states have (on average 13.555555555555555) internal successors, (488), 36 states have internal predecessors, (488), 33 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 33 states have call predecessors, (34), 33 states have call successors, (34) [2024-11-22 22:52:50,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:52:50,560 INFO L93 Difference]: Finished difference Result 21254 states and 23533 transitions. [2024-11-22 22:52:50,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-22 22:52:50,560 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 13.555555555555555) internal successors, (488), 36 states have internal predecessors, (488), 33 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 33 states have call predecessors, (34), 33 states have call successors, (34) Word has length 276 [2024-11-22 22:52:50,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:52:50,596 INFO L225 Difference]: With dead ends: 21254 [2024-11-22 22:52:50,597 INFO L226 Difference]: Without dead ends: 16094 [2024-11-22 22:52:50,603 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 593 GetRequests, 524 SyntacticMatches, 8 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1173 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=554, Invalid=3352, Unknown=0, NotChecked=0, Total=3906 [2024-11-22 22:52:50,604 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 70 mSDsluCounter, 1934 mSDsCounter, 0 mSdLazyCounter, 4321 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 2081 SdHoareTripleChecker+Invalid, 4340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 4321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-22 22:52:50,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 2081 Invalid, 4340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 4321 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-22 22:52:50,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16094 states. [2024-11-22 22:52:51,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16094 to 12316. [2024-11-22 22:52:51,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12316 states, 11540 states have (on average 1.0389081455805893) internal successors, (11989), 11542 states have internal predecessors, (11989), 771 states have call successors, (771), 2 states have call predecessors, (771), 2 states have return successors, (771), 771 states have call predecessors, (771), 771 states have call successors, (771) [2024-11-22 22:52:51,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12316 states to 12316 states and 13531 transitions. [2024-11-22 22:52:51,170 INFO L78 Accepts]: Start accepts. Automaton has 12316 states and 13531 transitions. Word has length 276 [2024-11-22 22:52:51,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:52:51,171 INFO L471 AbstractCegarLoop]: Abstraction has 12316 states and 13531 transitions. [2024-11-22 22:52:51,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 13.555555555555555) internal successors, (488), 36 states have internal predecessors, (488), 33 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 33 states have call predecessors, (34), 33 states have call successors, (34) [2024-11-22 22:52:51,171 INFO L276 IsEmpty]: Start isEmpty. Operand 12316 states and 13531 transitions. [2024-11-22 22:52:51,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2024-11-22 22:52:51,174 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:52:51,175 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 12, 12, 12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:52:51,184 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-11-22 22:52:51,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-22 22:52:51,379 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-22 22:52:51,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:52:51,380 INFO L85 PathProgramCache]: Analyzing trace with hash 203132823, now seen corresponding path program 13 times [2024-11-22 22:52:51,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:52:51,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009532050] [2024-11-22 22:52:51,380 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-22 22:52:51,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:52:51,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-22 22:52:51,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [925604193] [2024-11-22 22:52:51,407 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-22 22:52:51,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:52:51,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:52:51,411 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:52:51,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-22 22:52:51,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:52:51,487 INFO L255 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 88 conjuncts are in the unsatisfiable core [2024-11-22 22:52:51,490 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:52:52,959 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-22 22:52:53,401 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-22 22:52:54,000 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2024-11-22 22:52:54,647 WARN L672 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2024-11-22 22:52:55,379 WARN L672 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2024-11-22 22:52:56,017 WARN L672 sPolynomialRelations]: Constructing 2048(two to the power of 11 dual juncts. [2024-11-22 22:52:56,697 WARN L672 sPolynomialRelations]: Constructing 4096(two to the power of 12 dual juncts. [2024-11-22 22:52:57,538 WARN L672 sPolynomialRelations]: Constructing 8192(two to the power of 13 dual juncts. [2024-11-22 22:52:57,932 WARN L672 sPolynomialRelations]: Constructing 16384(two to the power of 14 dual juncts. [2024-11-22 22:52:58,452 INFO L134 CoverageAnalysis]: Checked inductivity of 1770 backedges. 39 proven. 1405 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2024-11-22 22:52:58,452 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:52:58,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:52:58,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009532050] [2024-11-22 22:52:58,936 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 22:52:58,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925604193] [2024-11-22 22:52:58,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [925604193] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:52:58,936 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-22 22:52:58,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52] total 52 [2024-11-22 22:52:58,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460753061] [2024-11-22 22:52:58,936 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-22 22:52:58,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2024-11-22 22:52:58,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:52:58,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2024-11-22 22:52:58,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=293, Invalid=3013, Unknown=0, NotChecked=0, Total=3306 [2024-11-22 22:52:58,938 INFO L87 Difference]: Start difference. First operand 12316 states and 13531 transitions. Second operand has 53 states, 51 states have (on average 4.470588235294118) internal successors, (228), 51 states have internal predecessors, (228), 16 states have call successors, (16), 1 states have call predecessors, (16), 3 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-22 22:53:03,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:53:03,989 INFO L93 Difference]: Finished difference Result 18087 states and 19924 transitions. [2024-11-22 22:53:03,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-11-22 22:53:03,990 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 51 states have (on average 4.470588235294118) internal successors, (228), 51 states have internal predecessors, (228), 16 states have call successors, (16), 1 states have call predecessors, (16), 3 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) Word has length 296 [2024-11-22 22:53:03,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:53:04,027 INFO L225 Difference]: With dead ends: 18087 [2024-11-22 22:53:04,031 INFO L226 Difference]: Without dead ends: 12736 [2024-11-22 22:53:04,053 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1339 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=598, Invalid=5722, Unknown=0, NotChecked=0, Total=6320 [2024-11-22 22:53:04,054 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 179 mSDsluCounter, 1263 mSDsCounter, 0 mSdLazyCounter, 9563 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 1325 SdHoareTripleChecker+Invalid, 9581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 9563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-22 22:53:04,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 1325 Invalid, 9581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 9563 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-22 22:53:04,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12736 states. [2024-11-22 22:53:04,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12736 to 12428. [2024-11-22 22:53:04,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12428 states, 11645 states have (on average 1.0385573207385144) internal successors, (12094), 11647 states have internal predecessors, (12094), 778 states have call successors, (778), 2 states have call predecessors, (778), 2 states have return successors, (778), 778 states have call predecessors, (778), 778 states have call successors, (778) [2024-11-22 22:53:04,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12428 states to 12428 states and 13650 transitions. [2024-11-22 22:53:04,708 INFO L78 Accepts]: Start accepts. Automaton has 12428 states and 13650 transitions. Word has length 296 [2024-11-22 22:53:04,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:53:04,708 INFO L471 AbstractCegarLoop]: Abstraction has 12428 states and 13650 transitions. [2024-11-22 22:53:04,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 51 states have (on average 4.470588235294118) internal successors, (228), 51 states have internal predecessors, (228), 16 states have call successors, (16), 1 states have call predecessors, (16), 3 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-22 22:53:04,708 INFO L276 IsEmpty]: Start isEmpty. Operand 12428 states and 13650 transitions. [2024-11-22 22:53:04,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2024-11-22 22:53:04,712 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:53:04,712 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 13, 13, 13, 13, 13, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:53:04,719 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-11-22 22:53:04,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-22 22:53:04,918 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-22 22:53:04,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:53:04,918 INFO L85 PathProgramCache]: Analyzing trace with hash -2142969626, now seen corresponding path program 14 times [2024-11-22 22:53:04,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:53:04,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430970028] [2024-11-22 22:53:04,919 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 22:53:04,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:53:04,934 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 22:53:04,934 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:53:05,238 INFO L134 CoverageAnalysis]: Checked inductivity of 2045 backedges. 387 proven. 1234 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-22 22:53:05,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:53:05,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430970028] [2024-11-22 22:53:05,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430970028] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:53:05,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447271235] [2024-11-22 22:53:05,239 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 22:53:05,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:53:05,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:53:05,240 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:53:05,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-22 22:53:05,306 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 22:53:05,306 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:53:05,308 INFO L255 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-22 22:53:05,310 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:53:05,675 INFO L134 CoverageAnalysis]: Checked inductivity of 2045 backedges. 469 proven. 1152 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-22 22:53:05,675 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:53:05,995 INFO L134 CoverageAnalysis]: Checked inductivity of 2045 backedges. 469 proven. 1152 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-22 22:53:05,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447271235] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 22:53:05,996 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 22:53:05,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 27 [2024-11-22 22:53:05,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774300125] [2024-11-22 22:53:05,996 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 22:53:05,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-22 22:53:05,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:53:05,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-22 22:53:05,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=528, Unknown=0, NotChecked=0, Total=702 [2024-11-22 22:53:05,998 INFO L87 Difference]: Start difference. First operand 12428 states and 13650 transitions. Second operand has 27 states, 27 states have (on average 13.74074074074074) internal successors, (371), 27 states have internal predecessors, (371), 25 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 25 states have call predecessors, (26), 25 states have call successors, (26) [2024-11-22 22:53:07,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:53:07,370 INFO L93 Difference]: Finished difference Result 22743 states and 25082 transitions. [2024-11-22 22:53:07,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-22 22:53:07,370 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 13.74074074074074) internal successors, (371), 27 states have internal predecessors, (371), 25 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 25 states have call predecessors, (26), 25 states have call successors, (26) Word has length 316 [2024-11-22 22:53:07,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:53:07,394 INFO L225 Difference]: With dead ends: 22743 [2024-11-22 22:53:07,394 INFO L226 Difference]: Without dead ends: 17583 [2024-11-22 22:53:07,405 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 655 GetRequests, 608 SyntacticMatches, 15 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 527 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=272, Invalid=850, Unknown=0, NotChecked=0, Total=1122 [2024-11-22 22:53:07,406 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 25 mSDsluCounter, 867 mSDsCounter, 0 mSdLazyCounter, 1735 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 999 SdHoareTripleChecker+Invalid, 1737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 22:53:07,406 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 999 Invalid, 1737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1735 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 22:53:07,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17583 states. [2024-11-22 22:53:08,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17583 to 14334. [2024-11-22 22:53:08,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14334 states, 13432 states have (on average 1.034618820726623) internal successors, (13897), 13434 states have internal predecessors, (13897), 897 states have call successors, (897), 2 states have call predecessors, (897), 2 states have return successors, (897), 897 states have call predecessors, (897), 897 states have call successors, (897) [2024-11-22 22:53:08,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14334 states to 14334 states and 15691 transitions. [2024-11-22 22:53:08,152 INFO L78 Accepts]: Start accepts. Automaton has 14334 states and 15691 transitions. Word has length 316 [2024-11-22 22:53:08,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:53:08,153 INFO L471 AbstractCegarLoop]: Abstraction has 14334 states and 15691 transitions. [2024-11-22 22:53:08,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 13.74074074074074) internal successors, (371), 27 states have internal predecessors, (371), 25 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 25 states have call predecessors, (26), 25 states have call successors, (26) [2024-11-22 22:53:08,153 INFO L276 IsEmpty]: Start isEmpty. Operand 14334 states and 15691 transitions. [2024-11-22 22:53:08,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2024-11-22 22:53:08,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:53:08,156 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 12, 12, 12, 12, 12, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:53:08,162 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-11-22 22:53:08,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-22 22:53:08,356 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-22 22:53:08,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:53:08,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1923062448, now seen corresponding path program 15 times [2024-11-22 22:53:08,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:53:08,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164342096] [2024-11-22 22:53:08,357 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 22:53:08,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:53:08,379 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2024-11-22 22:53:08,379 INFO L228 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-22 22:53:08,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1063573318] [2024-11-22 22:53:08,380 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 22:53:08,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:53:08,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:53:08,382 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:53:08,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-22 22:53:08,437 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-22 22:53:08,437 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:53:08,438 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-22 22:53:08,441 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:53:09,173 INFO L134 CoverageAnalysis]: Checked inductivity of 2005 backedges. 851 proven. 195 refuted. 0 times theorem prover too weak. 959 trivial. 0 not checked. [2024-11-22 22:53:09,173 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:53:10,133 INFO L134 CoverageAnalysis]: Checked inductivity of 2005 backedges. 808 proven. 161 refuted. 0 times theorem prover too weak. 1036 trivial. 0 not checked. [2024-11-22 22:53:10,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:53:10,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164342096] [2024-11-22 22:53:10,134 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 22:53:10,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063573318] [2024-11-22 22:53:10,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063573318] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 22:53:10,134 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-22 22:53:10,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 17] total 37 [2024-11-22 22:53:10,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309679871] [2024-11-22 22:53:10,134 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-22 22:53:10,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-22 22:53:10,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:53:10,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-22 22:53:10,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=1150, Unknown=0, NotChecked=0, Total=1406 [2024-11-22 22:53:10,136 INFO L87 Difference]: Start difference. First operand 14334 states and 15691 transitions. Second operand has 38 states, 37 states have (on average 6.081081081081081) internal successors, (225), 38 states have internal predecessors, (225), 12 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (16), 13 states have call predecessors, (16), 12 states have call successors, (16) [2024-11-22 22:53:14,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:53:14,141 INFO L93 Difference]: Finished difference Result 21154 states and 23183 transitions. [2024-11-22 22:53:14,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2024-11-22 22:53:14,142 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 6.081081081081081) internal successors, (225), 38 states have internal predecessors, (225), 12 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (16), 13 states have call predecessors, (16), 12 states have call successors, (16) Word has length 316 [2024-11-22 22:53:14,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:53:14,163 INFO L225 Difference]: With dead ends: 21154 [2024-11-22 22:53:14,163 INFO L226 Difference]: Without dead ends: 13030 [2024-11-22 22:53:14,181 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 699 GetRequests, 594 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3236 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=2084, Invalid=9258, Unknown=0, NotChecked=0, Total=11342 [2024-11-22 22:53:14,182 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 521 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 2807 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 2928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 2807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-22 22:53:14,182 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 433 Invalid, 2928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 2807 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-22 22:53:14,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13030 states. [2024-11-22 22:53:15,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13030 to 13006. [2024-11-22 22:53:15,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13006 states, 12194 states have (on average 1.031572904707233) internal successors, (12579), 12196 states have internal predecessors, (12579), 807 states have call successors, (807), 2 states have call predecessors, (807), 2 states have return successors, (807), 807 states have call predecessors, (807), 807 states have call successors, (807) [2024-11-22 22:53:15,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13006 states to 13006 states and 14193 transitions. [2024-11-22 22:53:15,130 INFO L78 Accepts]: Start accepts. Automaton has 13006 states and 14193 transitions. Word has length 316 [2024-11-22 22:53:15,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:53:15,130 INFO L471 AbstractCegarLoop]: Abstraction has 13006 states and 14193 transitions. [2024-11-22 22:53:15,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 6.081081081081081) internal successors, (225), 38 states have internal predecessors, (225), 12 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (16), 13 states have call predecessors, (16), 12 states have call successors, (16) [2024-11-22 22:53:15,130 INFO L276 IsEmpty]: Start isEmpty. Operand 13006 states and 14193 transitions. [2024-11-22 22:53:15,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2024-11-22 22:53:15,135 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:53:15,135 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:53:15,143 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-22 22:53:15,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-22 22:53:15,336 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-22 22:53:15,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:53:15,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1477694539, now seen corresponding path program 16 times [2024-11-22 22:53:15,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:53:15,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760284707] [2024-11-22 22:53:15,336 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 22:53:15,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:53:15,367 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 22:53:15,368 INFO L228 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-22 22:53:15,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [640593602] [2024-11-22 22:53:15,369 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 22:53:15,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:53:15,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:53:15,372 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:53:15,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-22 22:53:15,456 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 22:53:15,457 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:53:15,459 INFO L255 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 97 conjuncts are in the unsatisfiable core [2024-11-22 22:53:15,462 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:53:16,946 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-22 22:53:17,338 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-22 22:53:17,857 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2024-11-22 22:53:18,439 WARN L672 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2024-11-22 22:53:18,973 WARN L672 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2024-11-22 22:53:19,618 WARN L672 sPolynomialRelations]: Constructing 2048(two to the power of 11 dual juncts. [2024-11-22 22:53:20,411 WARN L672 sPolynomialRelations]: Constructing 4096(two to the power of 12 dual juncts. [2024-11-22 22:53:21,228 WARN L672 sPolynomialRelations]: Constructing 8192(two to the power of 13 dual juncts.