./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive/Primes.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive/Primes.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 16beca065b3aeb336c54dcf96f3abbe61553e7d28b28c1a40f525ad89a5da56e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 11:07:52,789 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 11:07:52,828 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 11:07:52,831 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 11:07:52,831 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 11:07:52,847 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 11:07:52,847 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 11:07:52,848 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 11:07:52,848 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 11:07:52,848 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 11:07:52,849 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 11:07:52,849 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 11:07:52,849 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 11:07:52,850 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 11:07:52,850 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 11:07:52,850 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 11:07:52,850 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 11:07:52,851 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 11:07:52,851 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 11:07:52,851 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 11:07:52,852 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 11:07:52,858 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 11:07:52,859 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 11:07:52,859 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 11:07:52,859 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 11:07:52,859 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 11:07:52,860 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 11:07:52,860 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 11:07:52,860 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 11:07:52,860 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 11:07:52,861 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 11:07:52,861 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 11:07:52,861 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 11:07:52,861 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 11:07:52,861 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 11:07:52,862 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 11:07:52,862 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 11:07:52,862 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 11:07:52,862 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 11:07:52,863 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 11:07:52,863 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 11:07:52,863 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 11:07:52,864 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 11:07:52,864 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 11:07:52,864 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16beca065b3aeb336c54dcf96f3abbe61553e7d28b28c1a40f525ad89a5da56e [2024-11-19 11:07:53,025 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 11:07:53,051 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 11:07:53,057 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 11:07:53,058 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 11:07:53,062 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 11:07:53,063 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/Primes.c [2024-11-19 11:07:54,404 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 11:07:54,547 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 11:07:54,547 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Primes.c [2024-11-19 11:07:54,553 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1af68d303/2107eaeb6981467b89fbaf6f47fe31c5/FLAG84556e192 [2024-11-19 11:07:54,562 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1af68d303/2107eaeb6981467b89fbaf6f47fe31c5 [2024-11-19 11:07:54,564 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 11:07:54,565 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 11:07:54,566 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 11:07:54,566 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 11:07:54,573 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 11:07:54,574 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:07:54" (1/1) ... [2024-11-19 11:07:54,575 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b8dc2bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:07:54, skipping insertion in model container [2024-11-19 11:07:54,576 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:07:54" (1/1) ... [2024-11-19 11:07:54,608 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 11:07:54,790 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 11:07:54,797 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 11:07:54,814 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 11:07:54,825 INFO L204 MainTranslator]: Completed translation [2024-11-19 11:07:54,825 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:07:54 WrapperNode [2024-11-19 11:07:54,826 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 11:07:54,838 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 11:07:54,838 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 11:07:54,838 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 11:07:54,845 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:07:54" (1/1) ... [2024-11-19 11:07:54,851 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:07:54" (1/1) ... [2024-11-19 11:07:54,863 INFO L138 Inliner]: procedures = 16, calls = 18, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2024-11-19 11:07:54,863 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 11:07:54,863 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 11:07:54,864 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 11:07:54,864 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 11:07:54,880 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:07:54" (1/1) ... [2024-11-19 11:07:54,880 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:07:54" (1/1) ... [2024-11-19 11:07:54,882 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:07:54" (1/1) ... [2024-11-19 11:07:54,890 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]. [2024-11-19 11:07:54,890 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:07:54" (1/1) ... [2024-11-19 11:07:54,890 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:07:54" (1/1) ... [2024-11-19 11:07:54,893 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:07:54" (1/1) ... [2024-11-19 11:07:54,894 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:07:54" (1/1) ... [2024-11-19 11:07:54,895 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:07:54" (1/1) ... [2024-11-19 11:07:54,896 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:07:54" (1/1) ... [2024-11-19 11:07:54,897 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 11:07:54,898 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 11:07:54,898 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 11:07:54,898 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 11:07:54,899 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:07:54" (1/1) ... [2024-11-19 11:07:54,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 11:07:54,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:07:54,921 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) [2024-11-19 11:07:54,923 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 [2024-11-19 11:07:54,954 INFO L130 BoogieDeclarations]: Found specification of procedure multiple_of [2024-11-19 11:07:54,954 INFO L138 BoogieDeclarations]: Found implementation of procedure multiple_of [2024-11-19 11:07:54,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 11:07:54,954 INFO L130 BoogieDeclarations]: Found specification of procedure mult [2024-11-19 11:07:54,955 INFO L138 BoogieDeclarations]: Found implementation of procedure mult [2024-11-19 11:07:54,955 INFO L130 BoogieDeclarations]: Found specification of procedure is_prime_ [2024-11-19 11:07:54,955 INFO L138 BoogieDeclarations]: Found implementation of procedure is_prime_ [2024-11-19 11:07:54,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 11:07:54,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 11:07:54,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 11:07:55,007 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 11:07:55,009 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 11:07:55,173 INFO L? ?]: Removed 44 outVars from TransFormulas that were not future-live. [2024-11-19 11:07:55,174 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 11:07:55,184 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 11:07:55,184 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 11:07:55,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:07:55 BoogieIcfgContainer [2024-11-19 11:07:55,185 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 11:07:55,186 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 11:07:55,187 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 11:07:55,189 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 11:07:55,189 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 11:07:54" (1/3) ... [2024-11-19 11:07:55,190 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@747fb09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:07:55, skipping insertion in model container [2024-11-19 11:07:55,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:07:54" (2/3) ... [2024-11-19 11:07:55,190 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@747fb09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:07:55, skipping insertion in model container [2024-11-19 11:07:55,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:07:55" (3/3) ... [2024-11-19 11:07:55,191 INFO L112 eAbstractionObserver]: Analyzing ICFG Primes.c [2024-11-19 11:07:55,205 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 11:07:55,205 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-11-19 11:07:55,255 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 11:07:55,260 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;@48d5fece, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 11:07:55,260 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-19 11:07:55,263 INFO L276 IsEmpty]: Start isEmpty. Operand has 84 states, 55 states have (on average 1.6) internal successors, (88), 71 states have internal predecessors, (88), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-19 11:07:55,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-19 11:07:55,267 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:07:55,267 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-19 11:07:55,268 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-19 11:07:55,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:07:55,271 INFO L85 PathProgramCache]: Analyzing trace with hash 2957412, now seen corresponding path program 1 times [2024-11-19 11:07:55,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:07:55,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955553248] [2024-11-19 11:07:55,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:07:55,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:07:55,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:07:55,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:07:55,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:07:55,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955553248] [2024-11-19 11:07:55,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955553248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:07:55,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:07:55,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 11:07:55,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203130828] [2024-11-19 11:07:55,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:07:55,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 11:07:55,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:07:55,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 11:07:55,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 11:07:55,442 INFO L87 Difference]: Start difference. First operand has 84 states, 55 states have (on average 1.6) internal successors, (88), 71 states have internal predecessors, (88), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:07:55,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:07:55,477 INFO L93 Difference]: Finished difference Result 87 states and 108 transitions. [2024-11-19 11:07:55,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 11:07:55,479 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-19 11:07:55,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:07:55,486 INFO L225 Difference]: With dead ends: 87 [2024-11-19 11:07:55,486 INFO L226 Difference]: Without dead ends: 76 [2024-11-19 11:07:55,488 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 11:07:55,492 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 3 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 11:07:55,493 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 196 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 11:07:55,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-19 11:07:55,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-11-19 11:07:55,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 49 states have (on average 1.5510204081632653) internal successors, (76), 64 states have internal predecessors, (76), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-19 11:07:55,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 93 transitions. [2024-11-19 11:07:55,531 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 93 transitions. Word has length 4 [2024-11-19 11:07:55,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:07:55,531 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 93 transitions. [2024-11-19 11:07:55,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:07:55,532 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 93 transitions. [2024-11-19 11:07:55,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-19 11:07:55,532 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:07:55,532 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-19 11:07:55,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 11:07:55,532 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-19 11:07:55,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:07:55,533 INFO L85 PathProgramCache]: Analyzing trace with hash 91679879, now seen corresponding path program 1 times [2024-11-19 11:07:55,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:07:55,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083076028] [2024-11-19 11:07:55,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:07:55,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:07:55,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:07:55,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:07:55,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:07:55,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083076028] [2024-11-19 11:07:55,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083076028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:07:55,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:07:55,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 11:07:55,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354126922] [2024-11-19 11:07:55,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:07:55,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 11:07:55,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:07:55,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 11:07:55,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 11:07:55,605 INFO L87 Difference]: Start difference. First operand 76 states and 93 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:07:55,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:07:55,627 INFO L93 Difference]: Finished difference Result 76 states and 93 transitions. [2024-11-19 11:07:55,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 11:07:55,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-19 11:07:55,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:07:55,629 INFO L225 Difference]: With dead ends: 76 [2024-11-19 11:07:55,630 INFO L226 Difference]: Without dead ends: 75 [2024-11-19 11:07:55,631 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 11:07:55,632 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 2 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 11:07:55,632 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 176 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 11:07:55,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-19 11:07:55,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2024-11-19 11:07:55,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 49 states have (on average 1.530612244897959) internal successors, (75), 63 states have internal predecessors, (75), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-19 11:07:55,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 92 transitions. [2024-11-19 11:07:55,648 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 92 transitions. Word has length 5 [2024-11-19 11:07:55,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:07:55,648 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 92 transitions. [2024-11-19 11:07:55,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:07:55,648 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 92 transitions. [2024-11-19 11:07:55,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-19 11:07:55,649 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:07:55,649 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:07:55,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 11:07:55,650 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-19 11:07:55,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:07:55,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1192796019, now seen corresponding path program 1 times [2024-11-19 11:07:55,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:07:55,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484401367] [2024-11-19 11:07:55,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:07:55,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:07:55,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:07:55,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:07:55,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:07:55,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484401367] [2024-11-19 11:07:55,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484401367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:07:55,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:07:55,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 11:07:55,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574918213] [2024-11-19 11:07:55,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:07:55,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 11:07:55,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:07:55,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 11:07:55,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 11:07:55,690 INFO L87 Difference]: Start difference. First operand 75 states and 92 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:07:55,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:07:55,719 INFO L93 Difference]: Finished difference Result 77 states and 97 transitions. [2024-11-19 11:07:55,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 11:07:55,721 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-19 11:07:55,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:07:55,725 INFO L225 Difference]: With dead ends: 77 [2024-11-19 11:07:55,725 INFO L226 Difference]: Without dead ends: 76 [2024-11-19 11:07:55,726 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 11:07:55,727 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 4 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 11:07:55,727 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 173 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 11:07:55,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-19 11:07:55,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 74. [2024-11-19 11:07:55,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 49 states have (on average 1.510204081632653) internal successors, (74), 62 states have internal predecessors, (74), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-19 11:07:55,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 91 transitions. [2024-11-19 11:07:55,742 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 91 transitions. Word has length 15 [2024-11-19 11:07:55,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:07:55,742 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 91 transitions. [2024-11-19 11:07:55,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:07:55,744 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 91 transitions. [2024-11-19 11:07:55,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-19 11:07:55,744 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:07:55,744 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:07:55,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 11:07:55,745 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-19 11:07:55,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:07:55,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1678029112, now seen corresponding path program 1 times [2024-11-19 11:07:55,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:07:55,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457569929] [2024-11-19 11:07:55,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:07:55,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:07:55,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:07:55,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:07:55,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:07:55,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457569929] [2024-11-19 11:07:55,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457569929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:07:55,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:07:55,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 11:07:55,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147279312] [2024-11-19 11:07:55,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:07:55,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 11:07:55,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:07:55,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 11:07:55,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 11:07:55,885 INFO L87 Difference]: Start difference. First operand 74 states and 91 transitions. Second operand has 5 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:07:55,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:07:55,953 INFO L93 Difference]: Finished difference Result 138 states and 177 transitions. [2024-11-19 11:07:55,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 11:07:55,954 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-19 11:07:55,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:07:55,954 INFO L225 Difference]: With dead ends: 138 [2024-11-19 11:07:55,955 INFO L226 Difference]: Without dead ends: 70 [2024-11-19 11:07:55,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 11:07:55,958 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 40 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 11:07:55,959 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 249 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 11:07:55,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-11-19 11:07:55,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2024-11-19 11:07:55,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 46 states have (on average 1.4565217391304348) internal successors, (67), 57 states have internal predecessors, (67), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-19 11:07:55,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 82 transitions. [2024-11-19 11:07:55,969 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 82 transitions. Word has length 16 [2024-11-19 11:07:55,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:07:55,970 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 82 transitions. [2024-11-19 11:07:55,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:07:55,970 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 82 transitions. [2024-11-19 11:07:55,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-19 11:07:55,971 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:07:55,971 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:07:55,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 11:07:55,974 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-19 11:07:55,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:07:55,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1678036095, now seen corresponding path program 1 times [2024-11-19 11:07:55,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:07:55,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743710862] [2024-11-19 11:07:55,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:07:55,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:07:55,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:07:56,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:07:56,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:07:56,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743710862] [2024-11-19 11:07:56,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743710862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:07:56,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:07:56,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 11:07:56,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538366235] [2024-11-19 11:07:56,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:07:56,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 11:07:56,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:07:56,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 11:07:56,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 11:07:56,012 INFO L87 Difference]: Start difference. First operand 68 states and 82 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:07:56,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:07:56,027 INFO L93 Difference]: Finished difference Result 70 states and 86 transitions. [2024-11-19 11:07:56,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 11:07:56,027 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-19 11:07:56,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:07:56,028 INFO L225 Difference]: With dead ends: 70 [2024-11-19 11:07:56,028 INFO L226 Difference]: Without dead ends: 69 [2024-11-19 11:07:56,028 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 11:07:56,029 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 4 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 11:07:56,029 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 151 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 11:07:56,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-11-19 11:07:56,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 67. [2024-11-19 11:07:56,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 46 states have (on average 1.434782608695652) internal successors, (66), 56 states have internal predecessors, (66), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-19 11:07:56,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 81 transitions. [2024-11-19 11:07:56,034 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 81 transitions. Word has length 16 [2024-11-19 11:07:56,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:07:56,034 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 81 transitions. [2024-11-19 11:07:56,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:07:56,034 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 81 transitions. [2024-11-19 11:07:56,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-19 11:07:56,035 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:07:56,035 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:07:56,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 11:07:56,035 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting multiple_ofErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-19 11:07:56,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:07:56,036 INFO L85 PathProgramCache]: Analyzing trace with hash 479511440, now seen corresponding path program 1 times [2024-11-19 11:07:56,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:07:56,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552957830] [2024-11-19 11:07:56,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:07:56,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:07:56,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:07:56,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:07:56,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:07:56,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552957830] [2024-11-19 11:07:56,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552957830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:07:56,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:07:56,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 11:07:56,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730704299] [2024-11-19 11:07:56,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:07:56,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 11:07:56,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:07:56,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 11:07:56,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 11:07:56,112 INFO L87 Difference]: Start difference. First operand 67 states and 81 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:07:56,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:07:56,218 INFO L93 Difference]: Finished difference Result 91 states and 112 transitions. [2024-11-19 11:07:56,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 11:07:56,218 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-11-19 11:07:56,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:07:56,219 INFO L225 Difference]: With dead ends: 91 [2024-11-19 11:07:56,219 INFO L226 Difference]: Without dead ends: 90 [2024-11-19 11:07:56,219 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-19 11:07:56,220 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 58 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 11:07:56,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 342 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 11:07:56,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-19 11:07:56,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 82. [2024-11-19 11:07:56,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 58 states have (on average 1.4137931034482758) internal successors, (82), 68 states have internal predecessors, (82), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-19 11:07:56,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 101 transitions. [2024-11-19 11:07:56,228 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 101 transitions. Word has length 17 [2024-11-19 11:07:56,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:07:56,228 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 101 transitions. [2024-11-19 11:07:56,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:07:56,228 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 101 transitions. [2024-11-19 11:07:56,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-19 11:07:56,228 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:07:56,228 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:07:56,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 11:07:56,229 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting multiple_ofErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-19 11:07:56,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:07:56,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1980170339, now seen corresponding path program 1 times [2024-11-19 11:07:56,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:07:56,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699715241] [2024-11-19 11:07:56,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:07:56,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:07:56,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:07:56,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:07:56,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:07:56,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699715241] [2024-11-19 11:07:56,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699715241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:07:56,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:07:56,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 11:07:56,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226673266] [2024-11-19 11:07:56,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:07:56,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 11:07:56,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:07:56,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 11:07:56,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 11:07:56,296 INFO L87 Difference]: Start difference. First operand 82 states and 101 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:07:56,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:07:56,395 INFO L93 Difference]: Finished difference Result 88 states and 106 transitions. [2024-11-19 11:07:56,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 11:07:56,395 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-11-19 11:07:56,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:07:56,396 INFO L225 Difference]: With dead ends: 88 [2024-11-19 11:07:56,397 INFO L226 Difference]: Without dead ends: 87 [2024-11-19 11:07:56,397 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-19 11:07:56,398 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 47 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 11:07:56,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 262 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 11:07:56,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-19 11:07:56,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 82. [2024-11-19 11:07:56,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 58 states have (on average 1.396551724137931) internal successors, (81), 68 states have internal predecessors, (81), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-19 11:07:56,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 100 transitions. [2024-11-19 11:07:56,411 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 100 transitions. Word has length 18 [2024-11-19 11:07:56,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:07:56,412 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 100 transitions. [2024-11-19 11:07:56,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:07:56,412 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 100 transitions. [2024-11-19 11:07:56,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-19 11:07:56,413 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:07:56,413 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:07:56,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 11:07:56,413 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting multErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-19 11:07:56,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:07:56,414 INFO L85 PathProgramCache]: Analyzing trace with hash 848744867, now seen corresponding path program 1 times [2024-11-19 11:07:56,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:07:56,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416971356] [2024-11-19 11:07:56,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:07:56,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:07:56,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:07:56,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:07:56,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:07:56,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416971356] [2024-11-19 11:07:56,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416971356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:07:56,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:07:56,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 11:07:56,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436280053] [2024-11-19 11:07:56,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:07:56,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 11:07:56,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:07:56,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 11:07:56,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 11:07:56,476 INFO L87 Difference]: Start difference. First operand 82 states and 100 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:07:56,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:07:56,494 INFO L93 Difference]: Finished difference Result 84 states and 103 transitions. [2024-11-19 11:07:56,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 11:07:56,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2024-11-19 11:07:56,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:07:56,495 INFO L225 Difference]: With dead ends: 84 [2024-11-19 11:07:56,495 INFO L226 Difference]: Without dead ends: 83 [2024-11-19 11:07:56,495 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 11:07:56,495 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 4 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 11:07:56,496 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 145 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 11:07:56,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-19 11:07:56,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 81. [2024-11-19 11:07:56,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 58 states have (on average 1.3793103448275863) internal successors, (80), 67 states have internal predecessors, (80), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-19 11:07:56,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 99 transitions. [2024-11-19 11:07:56,504 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 99 transitions. Word has length 19 [2024-11-19 11:07:56,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:07:56,504 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 99 transitions. [2024-11-19 11:07:56,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:07:56,505 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 99 transitions. [2024-11-19 11:07:56,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-19 11:07:56,505 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:07:56,505 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:07:56,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 11:07:56,506 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting multiple_ofErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-19 11:07:56,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:07:56,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1255738427, now seen corresponding path program 1 times [2024-11-19 11:07:56,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:07:56,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677457625] [2024-11-19 11:07:56,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:07:56,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:07:56,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:07:56,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:07:56,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:07:56,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677457625] [2024-11-19 11:07:56,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677457625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:07:56,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:07:56,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 11:07:56,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558324008] [2024-11-19 11:07:56,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:07:56,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 11:07:56,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:07:56,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 11:07:56,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 11:07:56,568 INFO L87 Difference]: Start difference. First operand 81 states and 99 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:07:56,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:07:56,683 INFO L93 Difference]: Finished difference Result 116 states and 143 transitions. [2024-11-19 11:07:56,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 11:07:56,683 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-19 11:07:56,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:07:56,684 INFO L225 Difference]: With dead ends: 116 [2024-11-19 11:07:56,687 INFO L226 Difference]: Without dead ends: 115 [2024-11-19 11:07:56,687 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-19 11:07:56,688 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 45 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 11:07:56,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 293 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 11:07:56,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-19 11:07:56,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 110. [2024-11-19 11:07:56,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 81 states have (on average 1.3703703703703705) internal successors, (111), 90 states have internal predecessors, (111), 14 states have call successors, (14), 6 states have call predecessors, (14), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-19 11:07:56,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 138 transitions. [2024-11-19 11:07:56,703 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 138 transitions. Word has length 19 [2024-11-19 11:07:56,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:07:56,703 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 138 transitions. [2024-11-19 11:07:56,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:07:56,703 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 138 transitions. [2024-11-19 11:07:56,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-19 11:07:56,704 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:07:56,704 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:07:56,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 11:07:56,704 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting multErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-19 11:07:56,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:07:56,705 INFO L85 PathProgramCache]: Analyzing trace with hash 541287174, now seen corresponding path program 1 times [2024-11-19 11:07:56,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:07:56,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143393574] [2024-11-19 11:07:56,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:07:56,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:07:56,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:07:56,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:07:56,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:07:56,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143393574] [2024-11-19 11:07:56,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143393574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:07:56,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:07:56,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 11:07:56,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805116464] [2024-11-19 11:07:56,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:07:56,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 11:07:56,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:07:56,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 11:07:56,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 11:07:56,770 INFO L87 Difference]: Start difference. First operand 110 states and 138 transitions. Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:07:56,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:07:56,793 INFO L93 Difference]: Finished difference Result 141 states and 174 transitions. [2024-11-19 11:07:56,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 11:07:56,794 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2024-11-19 11:07:56,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:07:56,795 INFO L225 Difference]: With dead ends: 141 [2024-11-19 11:07:56,795 INFO L226 Difference]: Without dead ends: 112 [2024-11-19 11:07:56,795 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 11:07:56,795 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 0 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 11:07:56,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 452 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 11:07:56,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-19 11:07:56,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 110. [2024-11-19 11:07:56,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 81 states have (on average 1.345679012345679) internal successors, (109), 90 states have internal predecessors, (109), 14 states have call successors, (14), 6 states have call predecessors, (14), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-19 11:07:56,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 136 transitions. [2024-11-19 11:07:56,802 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 136 transitions. Word has length 20 [2024-11-19 11:07:56,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:07:56,803 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 136 transitions. [2024-11-19 11:07:56,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:07:56,803 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 136 transitions. [2024-11-19 11:07:56,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-19 11:07:56,803 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:07:56,804 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:07:56,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 11:07:56,804 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting multErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-19 11:07:56,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:07:56,804 INFO L85 PathProgramCache]: Analyzing trace with hash 614805462, now seen corresponding path program 1 times [2024-11-19 11:07:56,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:07:56,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281043109] [2024-11-19 11:07:56,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:07:56,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:07:56,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:07:56,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:07:56,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:07:56,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281043109] [2024-11-19 11:07:56,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281043109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:07:56,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:07:56,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 11:07:56,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831917167] [2024-11-19 11:07:56,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:07:56,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 11:07:56,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:07:56,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 11:07:56,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 11:07:56,875 INFO L87 Difference]: Start difference. First operand 110 states and 136 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:07:56,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:07:56,912 INFO L93 Difference]: Finished difference Result 148 states and 181 transitions. [2024-11-19 11:07:56,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 11:07:56,913 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2024-11-19 11:07:56,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:07:56,914 INFO L225 Difference]: With dead ends: 148 [2024-11-19 11:07:56,914 INFO L226 Difference]: Without dead ends: 123 [2024-11-19 11:07:56,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 11:07:56,914 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 25 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 11:07:56,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 282 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 11:07:56,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-19 11:07:56,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 120. [2024-11-19 11:07:56,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 90 states have (on average 1.3333333333333333) internal successors, (120), 98 states have internal predecessors, (120), 15 states have call successors, (15), 7 states have call predecessors, (15), 6 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-19 11:07:56,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 149 transitions. [2024-11-19 11:07:56,921 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 149 transitions. Word has length 21 [2024-11-19 11:07:56,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:07:56,921 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 149 transitions. [2024-11-19 11:07:56,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:07:56,922 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 149 transitions. [2024-11-19 11:07:56,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-19 11:07:56,922 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:07:56,922 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:07:56,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 11:07:56,922 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting multiple_ofErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-19 11:07:56,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:07:56,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1461933403, now seen corresponding path program 1 times [2024-11-19 11:07:56,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:07:56,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091737241] [2024-11-19 11:07:56,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:07:56,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:07:56,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:07:56,975 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 11:07:56,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:07:56,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091737241] [2024-11-19 11:07:56,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091737241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:07:56,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:07:56,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 11:07:56,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96587250] [2024-11-19 11:07:56,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:07:56,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 11:07:56,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:07:56,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 11:07:56,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 11:07:56,976 INFO L87 Difference]: Start difference. First operand 120 states and 149 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:07:57,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:07:57,061 INFO L93 Difference]: Finished difference Result 216 states and 269 transitions. [2024-11-19 11:07:57,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 11:07:57,061 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2024-11-19 11:07:57,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:07:57,062 INFO L225 Difference]: With dead ends: 216 [2024-11-19 11:07:57,062 INFO L226 Difference]: Without dead ends: 117 [2024-11-19 11:07:57,063 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-19 11:07:57,063 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 44 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 11:07:57,063 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 348 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 11:07:57,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-19 11:07:57,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 112. [2024-11-19 11:07:57,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 84 states have (on average 1.3095238095238095) internal successors, (110), 92 states have internal predecessors, (110), 13 states have call successors, (13), 7 states have call predecessors, (13), 6 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-19 11:07:57,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 135 transitions. [2024-11-19 11:07:57,071 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 135 transitions. Word has length 23 [2024-11-19 11:07:57,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:07:57,071 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 135 transitions. [2024-11-19 11:07:57,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:07:57,071 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 135 transitions. [2024-11-19 11:07:57,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-19 11:07:57,072 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:07:57,072 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:07:57,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 11:07:57,072 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting multErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-19 11:07:57,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:07:57,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1870691775, now seen corresponding path program 1 times [2024-11-19 11:07:57,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:07:57,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73688762] [2024-11-19 11:07:57,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:07:57,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:07:57,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:07:57,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:07:57,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:07:57,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73688762] [2024-11-19 11:07:57,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73688762] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:07:57,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:07:57,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 11:07:57,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406280541] [2024-11-19 11:07:57,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:07:57,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 11:07:57,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:07:57,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 11:07:57,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 11:07:57,115 INFO L87 Difference]: Start difference. First operand 112 states and 135 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:07:57,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:07:57,164 INFO L93 Difference]: Finished difference Result 137 states and 167 transitions. [2024-11-19 11:07:57,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 11:07:57,165 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2024-11-19 11:07:57,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:07:57,166 INFO L225 Difference]: With dead ends: 137 [2024-11-19 11:07:57,166 INFO L226 Difference]: Without dead ends: 136 [2024-11-19 11:07:57,166 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 11:07:57,166 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 35 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 11:07:57,167 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 271 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 11:07:57,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2024-11-19 11:07:57,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 128. [2024-11-19 11:07:57,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 97 states have (on average 1.3298969072164948) internal successors, (129), 105 states have internal predecessors, (129), 15 states have call successors, (15), 8 states have call predecessors, (15), 7 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-19 11:07:57,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 158 transitions. [2024-11-19 11:07:57,183 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 158 transitions. Word has length 23 [2024-11-19 11:07:57,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:07:57,184 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 158 transitions. [2024-11-19 11:07:57,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:07:57,184 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 158 transitions. [2024-11-19 11:07:57,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-19 11:07:57,184 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:07:57,184 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:07:57,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 11:07:57,186 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting multiple_ofErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-19 11:07:57,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:07:57,186 INFO L85 PathProgramCache]: Analyzing trace with hash 771635278, now seen corresponding path program 1 times [2024-11-19 11:07:57,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:07:57,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498716064] [2024-11-19 11:07:57,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:07:57,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:07:57,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:07:57,281 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:07:57,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:07:57,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498716064] [2024-11-19 11:07:57,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498716064] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:07:57,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [6330569] [2024-11-19 11:07:57,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:07:57,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:07:57,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:07:57,284 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) [2024-11-19 11:07:57,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 11:07:57,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:07:57,333 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-19 11:07:57,336 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:07:57,522 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:07:57,523 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:07:57,719 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:07:57,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [6330569] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:07:57,720 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:07:57,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 23 [2024-11-19 11:07:57,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255898947] [2024-11-19 11:07:57,720 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:07:57,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-19 11:07:57,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:07:57,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-19 11:07:57,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2024-11-19 11:07:57,723 INFO L87 Difference]: Start difference. First operand 128 states and 158 transitions. Second operand has 24 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 15 states have internal predecessors, (62), 9 states have call successors, (9), 9 states have call predecessors, (9), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:07:58,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:07:58,148 INFO L93 Difference]: Finished difference Result 281 states and 357 transitions. [2024-11-19 11:07:58,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-19 11:07:58,149 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 15 states have internal predecessors, (62), 9 states have call successors, (9), 9 states have call predecessors, (9), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-19 11:07:58,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:07:58,150 INFO L225 Difference]: With dead ends: 281 [2024-11-19 11:07:58,151 INFO L226 Difference]: Without dead ends: 173 [2024-11-19 11:07:58,151 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=163, Invalid=959, Unknown=0, NotChecked=0, Total=1122 [2024-11-19 11:07:58,152 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 181 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 11:07:58,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 748 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 11:07:58,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-11-19 11:07:58,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 153. [2024-11-19 11:07:58,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 118 states have (on average 1.2966101694915255) internal successors, (153), 125 states have internal predecessors, (153), 18 states have call successors, (18), 10 states have call predecessors, (18), 9 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-19 11:07:58,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 188 transitions. [2024-11-19 11:07:58,163 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 188 transitions. Word has length 25 [2024-11-19 11:07:58,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:07:58,163 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 188 transitions. [2024-11-19 11:07:58,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 15 states have internal predecessors, (62), 9 states have call successors, (9), 9 states have call predecessors, (9), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:07:58,163 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 188 transitions. [2024-11-19 11:07:58,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-19 11:07:58,165 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:07:58,165 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] [2024-11-19 11:07:58,179 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 11:07:58,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-19 11:07:58,371 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting multiple_ofErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-19 11:07:58,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:07:58,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1481094791, now seen corresponding path program 1 times [2024-11-19 11:07:58,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:07:58,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129770954] [2024-11-19 11:07:58,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:07:58,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:07:58,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:07:58,447 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-19 11:07:58,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:07:58,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129770954] [2024-11-19 11:07:58,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129770954] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:07:58,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015042785] [2024-11-19 11:07:58,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:07:58,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:07:58,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:07:58,450 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) [2024-11-19 11:07:58,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 11:07:58,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:07:58,486 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 11:07:58,487 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:07:58,586 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:07:58,586 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 11:07:58,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1015042785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:07:58,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 11:07:58,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 12 [2024-11-19 11:07:58,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132691420] [2024-11-19 11:07:58,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:07:58,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 11:07:58,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:07:58,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 11:07:58,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-19 11:07:58,588 INFO L87 Difference]: Start difference. First operand 153 states and 188 transitions. Second operand has 9 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 states have internal predecessors, (24), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:07:58,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:07:58,734 INFO L93 Difference]: Finished difference Result 258 states and 317 transitions. [2024-11-19 11:07:58,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 11:07:58,735 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 states have internal predecessors, (24), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2024-11-19 11:07:58,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:07:58,736 INFO L225 Difference]: With dead ends: 258 [2024-11-19 11:07:58,736 INFO L226 Difference]: Without dead ends: 202 [2024-11-19 11:07:58,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2024-11-19 11:07:58,736 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 68 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 11:07:58,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 341 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 11:07:58,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2024-11-19 11:07:58,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 194. [2024-11-19 11:07:58,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 151 states have (on average 1.271523178807947) internal successors, (192), 158 states have internal predecessors, (192), 23 states have call successors, (23), 13 states have call predecessors, (23), 12 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-19 11:07:58,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 237 transitions. [2024-11-19 11:07:58,746 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 237 transitions. Word has length 27 [2024-11-19 11:07:58,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:07:58,746 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 237 transitions. [2024-11-19 11:07:58,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 states have internal predecessors, (24), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:07:58,746 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 237 transitions. [2024-11-19 11:07:58,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-19 11:07:58,747 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:07:58,747 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-19 11:07:58,759 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 11:07:58,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-19 11:07:58,952 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting multErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-19 11:07:58,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:07:58,953 INFO L85 PathProgramCache]: Analyzing trace with hash 903106936, now seen corresponding path program 1 times [2024-11-19 11:07:58,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:07:58,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105134651] [2024-11-19 11:07:58,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:07:58,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:07:58,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:07:58,979 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:07:58,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:07:58,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105134651] [2024-11-19 11:07:58,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105134651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:07:58,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:07:58,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 11:07:58,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977984177] [2024-11-19 11:07:58,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:07:58,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 11:07:58,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:07:58,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 11:07:58,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 11:07:58,980 INFO L87 Difference]: Start difference. First operand 194 states and 237 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:07:59,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:07:59,035 INFO L93 Difference]: Finished difference Result 224 states and 278 transitions. [2024-11-19 11:07:59,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 11:07:59,036 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2024-11-19 11:07:59,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:07:59,037 INFO L225 Difference]: With dead ends: 224 [2024-11-19 11:07:59,037 INFO L226 Difference]: Without dead ends: 222 [2024-11-19 11:07:59,037 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-19 11:07:59,038 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 28 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 11:07:59,038 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 262 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 11:07:59,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-11-19 11:07:59,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 209. [2024-11-19 11:07:59,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 164 states have (on average 1.2682926829268293) internal successors, (208), 170 states have internal predecessors, (208), 25 states have call successors, (25), 14 states have call predecessors, (25), 13 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-19 11:07:59,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 257 transitions. [2024-11-19 11:07:59,047 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 257 transitions. Word has length 28 [2024-11-19 11:07:59,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:07:59,048 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 257 transitions. [2024-11-19 11:07:59,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:07:59,048 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 257 transitions. [2024-11-19 11:07:59,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-19 11:07:59,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:07:59,049 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-19 11:07:59,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 11:07:59,049 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting multErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-19 11:07:59,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:07:59,049 INFO L85 PathProgramCache]: Analyzing trace with hash 992212682, now seen corresponding path program 1 times [2024-11-19 11:07:59,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:07:59,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874278233] [2024-11-19 11:07:59,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:07:59,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:07:59,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:07:59,091 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 11:07:59,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:07:59,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874278233] [2024-11-19 11:07:59,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874278233] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:07:59,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1271066558] [2024-11-19 11:07:59,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:07:59,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:07:59,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:07:59,093 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) [2024-11-19 11:07:59,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 11:07:59,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:07:59,133 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 11:07:59,134 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:07:59,199 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:07:59,199 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:07:59,257 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:07:59,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1271066558] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:07:59,257 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:07:59,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 15 [2024-11-19 11:07:59,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985559150] [2024-11-19 11:07:59,257 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:07:59,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-19 11:07:59,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:07:59,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-19 11:07:59,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-11-19 11:07:59,258 INFO L87 Difference]: Start difference. First operand 209 states and 257 transitions. Second operand has 15 states, 15 states have (on average 3.4) internal successors, (51), 13 states have internal predecessors, (51), 6 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-19 11:07:59,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:07:59,434 INFO L93 Difference]: Finished difference Result 258 states and 332 transitions. [2024-11-19 11:07:59,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 11:07:59,435 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.4) internal successors, (51), 13 states have internal predecessors, (51), 6 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 31 [2024-11-19 11:07:59,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:07:59,436 INFO L225 Difference]: With dead ends: 258 [2024-11-19 11:07:59,436 INFO L226 Difference]: Without dead ends: 207 [2024-11-19 11:07:59,436 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2024-11-19 11:07:59,437 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 105 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 11:07:59,437 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 508 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 11:07:59,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-11-19 11:07:59,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 196. [2024-11-19 11:07:59,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 155 states have (on average 1.2258064516129032) internal successors, (190), 161 states have internal predecessors, (190), 23 states have call successors, (23), 14 states have call predecessors, (23), 12 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-19 11:07:59,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 234 transitions. [2024-11-19 11:07:59,446 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 234 transitions. Word has length 31 [2024-11-19 11:07:59,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:07:59,447 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 234 transitions. [2024-11-19 11:07:59,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.4) internal successors, (51), 13 states have internal predecessors, (51), 6 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-19 11:07:59,447 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 234 transitions. [2024-11-19 11:07:59,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-19 11:07:59,448 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:07:59,448 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-11-19 11:07:59,462 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 11:07:59,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:07:59,649 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting multErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-19 11:07:59,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:07:59,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1575435679, now seen corresponding path program 1 times [2024-11-19 11:07:59,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:07:59,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783037156] [2024-11-19 11:07:59,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:07:59,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:07:59,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:07:59,704 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:07:59,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:07:59,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783037156] [2024-11-19 11:07:59,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783037156] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:07:59,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [92757024] [2024-11-19 11:07:59,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:07:59,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:07:59,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:07:59,707 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) [2024-11-19 11:07:59,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 11:07:59,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:07:59,741 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 11:07:59,742 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:07:59,765 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 11:07:59,765 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:07:59,794 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 11:07:59,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [92757024] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:07:59,795 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:07:59,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 10 [2024-11-19 11:07:59,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132517659] [2024-11-19 11:07:59,795 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:07:59,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 11:07:59,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:07:59,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 11:07:59,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-19 11:07:59,796 INFO L87 Difference]: Start difference. First operand 196 states and 234 transitions. Second operand has 10 states, 10 states have (on average 4.2) internal successors, (42), 7 states have internal predecessors, (42), 6 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:07:59,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:07:59,847 INFO L93 Difference]: Finished difference Result 203 states and 240 transitions. [2024-11-19 11:07:59,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 11:07:59,847 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 7 states have internal predecessors, (42), 6 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2024-11-19 11:07:59,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:07:59,848 INFO L225 Difference]: With dead ends: 203 [2024-11-19 11:07:59,848 INFO L226 Difference]: Without dead ends: 173 [2024-11-19 11:07:59,849 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 61 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-19 11:07:59,849 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 29 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 11:07:59,849 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 452 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 11:07:59,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-11-19 11:07:59,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 170. [2024-11-19 11:07:59,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 135 states have (on average 1.2) internal successors, (162), 138 states have internal predecessors, (162), 20 states have call successors, (20), 12 states have call predecessors, (20), 11 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-19 11:07:59,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 201 transitions. [2024-11-19 11:07:59,857 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 201 transitions. Word has length 33 [2024-11-19 11:07:59,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:07:59,857 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 201 transitions. [2024-11-19 11:07:59,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 7 states have internal predecessors, (42), 6 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:07:59,857 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 201 transitions. [2024-11-19 11:07:59,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-19 11:07:59,858 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:07:59,858 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] [2024-11-19 11:07:59,871 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 11:08:00,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-19 11:08:00,062 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting multErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-19 11:08:00,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:08:00,062 INFO L85 PathProgramCache]: Analyzing trace with hash 500890758, now seen corresponding path program 1 times [2024-11-19 11:08:00,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:08:00,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109381410] [2024-11-19 11:08:00,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:08:00,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:08:00,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:08:00,105 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:08:00,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:08:00,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109381410] [2024-11-19 11:08:00,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109381410] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:08:00,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1695790979] [2024-11-19 11:08:00,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:08:00,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:08:00,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:08:00,108 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) [2024-11-19 11:08:00,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 11:08:00,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:08:00,141 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 11:08:00,142 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:08:00,172 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:08:00,172 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:08:00,228 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:08:00,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1695790979] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:08:00,228 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:08:00,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-11-19 11:08:00,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961786308] [2024-11-19 11:08:00,228 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:08:00,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 11:08:00,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:08:00,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 11:08:00,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-19 11:08:00,229 INFO L87 Difference]: Start difference. First operand 170 states and 201 transitions. Second operand has 13 states, 12 states have (on average 3.75) internal successors, (45), 11 states have internal predecessors, (45), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-19 11:08:00,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:08:00,281 INFO L93 Difference]: Finished difference Result 179 states and 211 transitions. [2024-11-19 11:08:00,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 11:08:00,281 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.75) internal successors, (45), 11 states have internal predecessors, (45), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 33 [2024-11-19 11:08:00,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:08:00,282 INFO L225 Difference]: With dead ends: 179 [2024-11-19 11:08:00,282 INFO L226 Difference]: Without dead ends: 175 [2024-11-19 11:08:00,283 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-11-19 11:08:00,283 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 24 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 11:08:00,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 523 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 11:08:00,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-19 11:08:00,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2024-11-19 11:08:00,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 139 states have (on average 1.1942446043165467) internal successors, (166), 142 states have internal predecessors, (166), 20 states have call successors, (20), 12 states have call predecessors, (20), 12 states have return successors, (20), 20 states have call predecessors, (20), 19 states have call successors, (20) [2024-11-19 11:08:00,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 206 transitions. [2024-11-19 11:08:00,291 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 206 transitions. Word has length 33 [2024-11-19 11:08:00,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:08:00,292 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 206 transitions. [2024-11-19 11:08:00,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.75) internal successors, (45), 11 states have internal predecessors, (45), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-19 11:08:00,292 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 206 transitions. [2024-11-19 11:08:00,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-19 11:08:00,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:08:00,292 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:08:00,305 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-19 11:08:00,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:08:00,497 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting multiple_ofErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-19 11:08:00,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:08:00,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1673059225, now seen corresponding path program 1 times [2024-11-19 11:08:00,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:08:00,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655909067] [2024-11-19 11:08:00,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:08:00,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:08:00,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:08:00,619 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:08:00,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:08:00,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655909067] [2024-11-19 11:08:00,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655909067] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:08:00,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8332091] [2024-11-19 11:08:00,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:08:00,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:08:00,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:08:00,622 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) [2024-11-19 11:08:00,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 11:08:00,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:08:00,659 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 11:08:00,660 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:08:00,791 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:08:00,791 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:08:00,904 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:08:00,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8332091] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:08:00,904 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:08:00,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 18 [2024-11-19 11:08:00,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855063955] [2024-11-19 11:08:00,904 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:08:00,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-19 11:08:00,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:08:00,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-19 11:08:00,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2024-11-19 11:08:00,905 INFO L87 Difference]: Start difference. First operand 175 states and 206 transitions. Second operand has 18 states, 16 states have (on average 3.125) internal successors, (50), 11 states have internal predecessors, (50), 7 states have call successors, (8), 7 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:08:01,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:08:01,141 INFO L93 Difference]: Finished difference Result 300 states and 354 transitions. [2024-11-19 11:08:01,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 11:08:01,142 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 3.125) internal successors, (50), 11 states have internal predecessors, (50), 7 states have call successors, (8), 7 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2024-11-19 11:08:01,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:08:01,142 INFO L225 Difference]: With dead ends: 300 [2024-11-19 11:08:01,143 INFO L226 Difference]: Without dead ends: 160 [2024-11-19 11:08:01,143 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 54 SyntacticMatches, 7 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=451, Unknown=0, NotChecked=0, Total=552 [2024-11-19 11:08:01,144 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 121 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 11:08:01,144 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 555 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 11:08:01,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-19 11:08:01,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 154. [2024-11-19 11:08:01,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 122 states have (on average 1.1639344262295082) internal successors, (142), 125 states have internal predecessors, (142), 17 states have call successors, (17), 11 states have call predecessors, (17), 11 states have return successors, (17), 17 states have call predecessors, (17), 16 states have call successors, (17) [2024-11-19 11:08:01,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 176 transitions. [2024-11-19 11:08:01,151 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 176 transitions. Word has length 34 [2024-11-19 11:08:01,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:08:01,151 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 176 transitions. [2024-11-19 11:08:01,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 3.125) internal successors, (50), 11 states have internal predecessors, (50), 7 states have call successors, (8), 7 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:08:01,152 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 176 transitions. [2024-11-19 11:08:01,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-19 11:08:01,152 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:08:01,152 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:08:01,168 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-19 11:08:01,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:08:01,357 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting multiple_ofErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-19 11:08:01,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:08:01,357 INFO L85 PathProgramCache]: Analyzing trace with hash -538547935, now seen corresponding path program 1 times [2024-11-19 11:08:01,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:08:01,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713919041] [2024-11-19 11:08:01,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:08:01,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:08:01,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:08:01,382 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-19 11:08:01,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:08:01,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713919041] [2024-11-19 11:08:01,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713919041] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:08:01,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16356842] [2024-11-19 11:08:01,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:08:01,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:08:01,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:08:01,384 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) [2024-11-19 11:08:01,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 11:08:01,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:08:01,426 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 11:08:01,427 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:08:01,447 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-19 11:08:01,447 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:08:01,471 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-19 11:08:01,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [16356842] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:08:01,471 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:08:01,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-19 11:08:01,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720576351] [2024-11-19 11:08:01,472 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:08:01,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 11:08:01,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:08:01,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 11:08:01,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-19 11:08:01,472 INFO L87 Difference]: Start difference. First operand 154 states and 176 transitions. Second operand has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (5), 3 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:08:01,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:08:01,549 INFO L93 Difference]: Finished difference Result 295 states and 353 transitions. [2024-11-19 11:08:01,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 11:08:01,550 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (5), 3 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2024-11-19 11:08:01,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:08:01,551 INFO L225 Difference]: With dead ends: 295 [2024-11-19 11:08:01,551 INFO L226 Difference]: Without dead ends: 175 [2024-11-19 11:08:01,551 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-19 11:08:01,552 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 28 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 11:08:01,552 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 394 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 11:08:01,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-19 11:08:01,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 165. [2024-11-19 11:08:01,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 131 states have (on average 1.16793893129771) internal successors, (153), 134 states have internal predecessors, (153), 18 states have call successors, (18), 12 states have call predecessors, (18), 12 states have return successors, (18), 18 states have call predecessors, (18), 17 states have call successors, (18) [2024-11-19 11:08:01,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 189 transitions. [2024-11-19 11:08:01,562 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 189 transitions. Word has length 39 [2024-11-19 11:08:01,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:08:01,562 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 189 transitions. [2024-11-19 11:08:01,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (5), 3 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:08:01,563 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 189 transitions. [2024-11-19 11:08:01,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-19 11:08:01,563 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:08:01,563 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:08:01,575 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-19 11:08:01,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:08:01,765 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting multiple_ofErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-19 11:08:01,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:08:01,765 INFO L85 PathProgramCache]: Analyzing trace with hash 485100786, now seen corresponding path program 1 times [2024-11-19 11:08:01,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:08:01,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11865305] [2024-11-19 11:08:01,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:08:01,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:08:01,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:08:01,892 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:08:01,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:08:01,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11865305] [2024-11-19 11:08:01,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11865305] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:08:01,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152137038] [2024-11-19 11:08:01,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:08:01,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:08:01,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:08:01,898 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) [2024-11-19 11:08:01,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-19 11:08:01,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:08:01,934 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-19 11:08:01,935 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:08:02,103 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-19 11:08:02,104 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 11:08:02,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152137038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:08:02,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 11:08:02,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 19 [2024-11-19 11:08:02,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419480740] [2024-11-19 11:08:02,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:08:02,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 11:08:02,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:08:02,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 11:08:02,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2024-11-19 11:08:02,105 INFO L87 Difference]: Start difference. First operand 165 states and 189 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 7 states have internal predecessors, (26), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:08:02,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:08:02,244 INFO L93 Difference]: Finished difference Result 173 states and 198 transitions. [2024-11-19 11:08:02,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 11:08:02,245 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 7 states have internal predecessors, (26), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2024-11-19 11:08:02,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:08:02,246 INFO L225 Difference]: With dead ends: 173 [2024-11-19 11:08:02,246 INFO L226 Difference]: Without dead ends: 172 [2024-11-19 11:08:02,246 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2024-11-19 11:08:02,246 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 68 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 11:08:02,246 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 281 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 11:08:02,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-11-19 11:08:02,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 165. [2024-11-19 11:08:02,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 131 states have (on average 1.1603053435114503) internal successors, (152), 134 states have internal predecessors, (152), 18 states have call successors, (18), 12 states have call predecessors, (18), 12 states have return successors, (18), 18 states have call predecessors, (18), 17 states have call successors, (18) [2024-11-19 11:08:02,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 188 transitions. [2024-11-19 11:08:02,254 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 188 transitions. Word has length 40 [2024-11-19 11:08:02,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:08:02,254 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 188 transitions. [2024-11-19 11:08:02,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 7 states have internal predecessors, (26), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:08:02,254 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 188 transitions. [2024-11-19 11:08:02,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-19 11:08:02,255 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:08:02,255 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:08:02,267 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-19 11:08:02,455 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,SelfDestructingSolverStorable21 [2024-11-19 11:08:02,456 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting multiple_ofErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-19 11:08:02,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:08:02,456 INFO L85 PathProgramCache]: Analyzing trace with hash -2141744756, now seen corresponding path program 1 times [2024-11-19 11:08:02,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:08:02,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634992475] [2024-11-19 11:08:02,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:08:02,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:08:02,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:08:02,501 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 21 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 11:08:02,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:08:02,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634992475] [2024-11-19 11:08:02,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634992475] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:08:02,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918330870] [2024-11-19 11:08:02,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:08:02,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:08:02,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:08:02,504 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) [2024-11-19 11:08:02,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-19 11:08:02,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:08:02,539 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-19 11:08:02,540 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:08:02,617 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-19 11:08:02,617 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 11:08:02,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918330870] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:08:02,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 11:08:02,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 12 [2024-11-19 11:08:02,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201593436] [2024-11-19 11:08:02,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:08:02,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 11:08:02,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:08:02,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 11:08:02,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-19 11:08:02,619 INFO L87 Difference]: Start difference. First operand 165 states and 188 transitions. Second operand has 8 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:08:02,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:08:02,750 INFO L93 Difference]: Finished difference Result 197 states and 227 transitions. [2024-11-19 11:08:02,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 11:08:02,750 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2024-11-19 11:08:02,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:08:02,754 INFO L225 Difference]: With dead ends: 197 [2024-11-19 11:08:02,755 INFO L226 Difference]: Without dead ends: 196 [2024-11-19 11:08:02,755 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2024-11-19 11:08:02,755 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 72 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 11:08:02,755 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 251 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 11:08:02,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-11-19 11:08:02,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 180. [2024-11-19 11:08:02,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 143 states have (on average 1.167832167832168) internal successors, (167), 146 states have internal predecessors, (167), 20 states have call successors, (20), 13 states have call predecessors, (20), 13 states have return successors, (20), 20 states have call predecessors, (20), 19 states have call successors, (20) [2024-11-19 11:08:02,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 207 transitions. [2024-11-19 11:08:02,771 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 207 transitions. Word has length 41 [2024-11-19 11:08:02,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:08:02,771 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 207 transitions. [2024-11-19 11:08:02,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:08:02,772 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 207 transitions. [2024-11-19 11:08:02,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-19 11:08:02,776 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:08:02,776 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-19 11:08:02,788 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-19 11:08:02,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:08:02,977 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting multErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-19 11:08:02,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:08:02,977 INFO L85 PathProgramCache]: Analyzing trace with hash 788683582, now seen corresponding path program 1 times [2024-11-19 11:08:02,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:08:02,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974905510] [2024-11-19 11:08:02,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:08:02,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:08:02,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:08:03,053 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 11:08:03,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:08:03,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974905510] [2024-11-19 11:08:03,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974905510] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:08:03,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36869721] [2024-11-19 11:08:03,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:08:03,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:08:03,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:08:03,055 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) [2024-11-19 11:08:03,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-19 11:08:03,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:08:03,092 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-19 11:08:03,093 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:08:03,160 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 11:08:03,161 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:08:03,325 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 11:08:03,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [36869721] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:08:03,326 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:08:03,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2024-11-19 11:08:03,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004818512] [2024-11-19 11:08:03,326 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:08:03,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-19 11:08:03,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:08:03,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-19 11:08:03,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2024-11-19 11:08:03,327 INFO L87 Difference]: Start difference. First operand 180 states and 207 transitions. Second operand has 20 states, 19 states have (on average 3.5789473684210527) internal successors, (68), 18 states have internal predecessors, (68), 7 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-19 11:08:03,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:08:03,443 INFO L93 Difference]: Finished difference Result 197 states and 227 transitions. [2024-11-19 11:08:03,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 11:08:03,443 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 3.5789473684210527) internal successors, (68), 18 states have internal predecessors, (68), 7 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) Word has length 45 [2024-11-19 11:08:03,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:08:03,444 INFO L225 Difference]: With dead ends: 197 [2024-11-19 11:08:03,444 INFO L226 Difference]: Without dead ends: 190 [2024-11-19 11:08:03,444 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 79 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=134, Invalid=568, Unknown=0, NotChecked=0, Total=702 [2024-11-19 11:08:03,445 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 54 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 11:08:03,445 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 643 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 11:08:03,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-19 11:08:03,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2024-11-19 11:08:03,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 151 states have (on average 1.1589403973509933) internal successors, (175), 154 states have internal predecessors, (175), 20 states have call successors, (20), 13 states have call predecessors, (20), 15 states have return successors, (22), 22 states have call predecessors, (22), 19 states have call successors, (22) [2024-11-19 11:08:03,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 217 transitions. [2024-11-19 11:08:03,454 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 217 transitions. Word has length 45 [2024-11-19 11:08:03,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:08:03,454 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 217 transitions. [2024-11-19 11:08:03,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.5789473684210527) internal successors, (68), 18 states have internal predecessors, (68), 7 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-19 11:08:03,454 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 217 transitions. [2024-11-19 11:08:03,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-19 11:08:03,455 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:08:03,455 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:08:03,467 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-19 11:08:03,659 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,SelfDestructingSolverStorable23 [2024-11-19 11:08:03,660 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting multiple_ofErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-19 11:08:03,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:08:03,661 INFO L85 PathProgramCache]: Analyzing trace with hash 647871711, now seen corresponding path program 2 times [2024-11-19 11:08:03,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:08:03,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297484313] [2024-11-19 11:08:03,661 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 11:08:03,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:08:03,669 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 11:08:03,669 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:08:03,801 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:08:03,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:08:03,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297484313] [2024-11-19 11:08:03,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297484313] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:08:03,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [164619233] [2024-11-19 11:08:03,801 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 11:08:03,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:08:03,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:08:03,803 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) [2024-11-19 11:08:03,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-19 11:08:03,844 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 11:08:03,844 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:08:03,845 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-19 11:08:03,846 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:08:04,151 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 19 proven. 14 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-19 11:08:04,151 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:08:04,386 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-19 11:08:04,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [164619233] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:08:04,386 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:08:04,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 33 [2024-11-19 11:08:04,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275196845] [2024-11-19 11:08:04,386 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:08:04,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-19 11:08:04,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:08:04,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-19 11:08:04,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=1027, Unknown=0, NotChecked=0, Total=1122 [2024-11-19 11:08:04,388 INFO L87 Difference]: Start difference. First operand 190 states and 217 transitions. Second operand has 34 states, 33 states have (on average 3.0606060606060606) internal successors, (101), 20 states have internal predecessors, (101), 16 states have call successors, (16), 14 states have call predecessors, (16), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:08:06,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:08:06,482 INFO L93 Difference]: Finished difference Result 335 states and 397 transitions. [2024-11-19 11:08:06,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-11-19 11:08:06,482 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 3.0606060606060606) internal successors, (101), 20 states have internal predecessors, (101), 16 states have call successors, (16), 14 states have call predecessors, (16), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2024-11-19 11:08:06,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:08:06,483 INFO L225 Difference]: With dead ends: 335 [2024-11-19 11:08:06,484 INFO L226 Difference]: Without dead ends: 333 [2024-11-19 11:08:06,485 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1598 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1424, Invalid=6586, Unknown=0, NotChecked=0, Total=8010 [2024-11-19 11:08:06,485 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 546 mSDsluCounter, 1118 mSDsCounter, 0 mSdLazyCounter, 2140 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 1194 SdHoareTripleChecker+Invalid, 2298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 2140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-19 11:08:06,486 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [547 Valid, 1194 Invalid, 2298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 2140 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-19 11:08:06,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2024-11-19 11:08:06,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 296. [2024-11-19 11:08:06,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 238 states have (on average 1.1218487394957983) internal successors, (267), 239 states have internal predecessors, (267), 33 states have call successors, (33), 21 states have call predecessors, (33), 23 states have return successors, (35), 35 states have call predecessors, (35), 32 states have call successors, (35) [2024-11-19 11:08:06,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 335 transitions. [2024-11-19 11:08:06,503 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 335 transitions. Word has length 47 [2024-11-19 11:08:06,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:08:06,504 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 335 transitions. [2024-11-19 11:08:06,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 3.0606060606060606) internal successors, (101), 20 states have internal predecessors, (101), 16 states have call successors, (16), 14 states have call predecessors, (16), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:08:06,504 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 335 transitions. [2024-11-19 11:08:06,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-19 11:08:06,505 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:08:06,505 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:08:06,519 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-19 11:08:06,705 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,SelfDestructingSolverStorable24 [2024-11-19 11:08:06,706 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting multErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-19 11:08:06,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:08:06,706 INFO L85 PathProgramCache]: Analyzing trace with hash 32698622, now seen corresponding path program 2 times [2024-11-19 11:08:06,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:08:06,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13340756] [2024-11-19 11:08:06,706 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 11:08:06,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:08:06,720 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 11:08:06,721 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:08:06,922 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-19 11:08:06,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:08:06,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13340756] [2024-11-19 11:08:06,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13340756] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:08:06,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645392706] [2024-11-19 11:08:06,922 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 11:08:06,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:08:06,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:08:06,924 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) [2024-11-19 11:08:06,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-19 11:08:06,968 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 11:08:06,968 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:08:06,969 INFO L255 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-19 11:08:06,970 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:08:07,103 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-19 11:08:07,104 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:08:07,727 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 6 proven. 126 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-19 11:08:07,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645392706] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:08:07,727 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:08:07,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 15] total 31 [2024-11-19 11:08:07,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118189520] [2024-11-19 11:08:07,727 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:08:07,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-19 11:08:07,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:08:07,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-19 11:08:07,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=853, Unknown=0, NotChecked=0, Total=992 [2024-11-19 11:08:07,729 INFO L87 Difference]: Start difference. First operand 296 states and 335 transitions. Second operand has 32 states, 31 states have (on average 3.2903225806451615) internal successors, (102), 30 states have internal predecessors, (102), 9 states have call successors, (11), 3 states have call predecessors, (11), 9 states have return successors, (13), 13 states have call predecessors, (13), 7 states have call successors, (13) [2024-11-19 11:08:08,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:08:08,060 INFO L93 Difference]: Finished difference Result 329 states and 375 transitions. [2024-11-19 11:08:08,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-19 11:08:08,060 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 3.2903225806451615) internal successors, (102), 30 states have internal predecessors, (102), 9 states have call successors, (11), 3 states have call predecessors, (11), 9 states have return successors, (13), 13 states have call predecessors, (13), 7 states have call successors, (13) Word has length 83 [2024-11-19 11:08:08,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:08:08,061 INFO L225 Difference]: With dead ends: 329 [2024-11-19 11:08:08,061 INFO L226 Difference]: Without dead ends: 316 [2024-11-19 11:08:08,062 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 153 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=347, Invalid=1815, Unknown=0, NotChecked=0, Total=2162 [2024-11-19 11:08:08,062 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 124 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 989 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 11:08:08,063 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 989 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 11:08:08,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2024-11-19 11:08:08,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 316. [2024-11-19 11:08:08,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 254 states have (on average 1.1141732283464567) internal successors, (283), 255 states have internal predecessors, (283), 33 states have call successors, (33), 21 states have call predecessors, (33), 27 states have return successors, (39), 39 states have call predecessors, (39), 32 states have call successors, (39) [2024-11-19 11:08:08,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 355 transitions. [2024-11-19 11:08:08,078 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 355 transitions. Word has length 83 [2024-11-19 11:08:08,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:08:08,078 INFO L471 AbstractCegarLoop]: Abstraction has 316 states and 355 transitions. [2024-11-19 11:08:08,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 3.2903225806451615) internal successors, (102), 30 states have internal predecessors, (102), 9 states have call successors, (11), 3 states have call predecessors, (11), 9 states have return successors, (13), 13 states have call predecessors, (13), 7 states have call successors, (13) [2024-11-19 11:08:08,079 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 355 transitions. [2024-11-19 11:08:08,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-19 11:08:08,079 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:08:08,080 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 4, 3, 3, 3, 3, 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] [2024-11-19 11:08:08,096 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-19 11:08:08,283 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,SelfDestructingSolverStorable25 [2024-11-19 11:08:08,284 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting multiple_ofErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-19 11:08:08,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:08:08,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1270351096, now seen corresponding path program 1 times [2024-11-19 11:08:08,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:08:08,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433563834] [2024-11-19 11:08:08,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:08:08,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:08:08,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:08:08,387 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 73 proven. 21 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-19 11:08:08,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:08:08,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433563834] [2024-11-19 11:08:08,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433563834] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:08:08,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1531761502] [2024-11-19 11:08:08,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:08:08,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:08:08,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:08:08,389 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) [2024-11-19 11:08:08,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-19 11:08:08,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:08:08,439 INFO L255 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-19 11:08:08,440 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:08:08,591 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 37 proven. 62 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-19 11:08:08,591 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:08:09,515 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 35 proven. 64 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-19 11:08:09,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1531761502] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:08:09,516 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:08:09,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 14, 14] total 23 [2024-11-19 11:08:09,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776982429] [2024-11-19 11:08:09,516 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:08:09,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-19 11:08:09,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:08:09,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-19 11:08:09,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2024-11-19 11:08:09,517 INFO L87 Difference]: Start difference. First operand 316 states and 355 transitions. Second operand has 23 states, 23 states have (on average 5.478260869565218) internal successors, (126), 22 states have internal predecessors, (126), 14 states have call successors, (18), 3 states have call predecessors, (18), 6 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-19 11:08:09,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:08:09,775 INFO L93 Difference]: Finished difference Result 526 states and 602 transitions. [2024-11-19 11:08:09,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-19 11:08:09,776 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 5.478260869565218) internal successors, (126), 22 states have internal predecessors, (126), 14 states have call successors, (18), 3 states have call predecessors, (18), 6 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) Word has length 79 [2024-11-19 11:08:09,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:08:09,777 INFO L225 Difference]: With dead ends: 526 [2024-11-19 11:08:09,777 INFO L226 Difference]: Without dead ends: 76 [2024-11-19 11:08:09,778 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 139 SyntacticMatches, 7 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=263, Invalid=927, Unknown=0, NotChecked=0, Total=1190 [2024-11-19 11:08:09,778 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 111 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 11:08:09,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 533 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 11:08:09,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-19 11:08:09,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-11-19 11:08:09,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 62 states have (on average 1.0483870967741935) internal successors, (65), 62 states have internal predecessors, (65), 4 states have call successors, (4), 3 states have call predecessors, (4), 9 states have return successors, (10), 10 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-19 11:08:09,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 79 transitions. [2024-11-19 11:08:09,782 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 79 transitions. Word has length 79 [2024-11-19 11:08:09,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:08:09,782 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 79 transitions. [2024-11-19 11:08:09,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.478260869565218) internal successors, (126), 22 states have internal predecessors, (126), 14 states have call successors, (18), 3 states have call predecessors, (18), 6 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-19 11:08:09,783 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 79 transitions. [2024-11-19 11:08:09,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-19 11:08:09,783 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:08:09,783 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:08:09,798 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-19 11:08:09,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-19 11:08:09,988 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting multErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-19 11:08:09,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:08:09,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1042418494, now seen corresponding path program 3 times [2024-11-19 11:08:09,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:08:09,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591553392] [2024-11-19 11:08:09,989 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 11:08:09,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:08:10,021 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-11-19 11:08:10,022 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:08:10,418 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 72 proven. 214 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-19 11:08:10,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:08:10,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591553392] [2024-11-19 11:08:10,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591553392] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:08:10,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324120308] [2024-11-19 11:08:10,419 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 11:08:10,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:08:10,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:08:10,420 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) [2024-11-19 11:08:10,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-19 11:08:10,487 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-11-19 11:08:10,487 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:08:10,489 INFO L255 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-19 11:08:10,490 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:08:10,785 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 214 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-19 11:08:10,785 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:08:14,606 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 30 proven. 250 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-19 11:08:14,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1324120308] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:08:14,606 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:08:14,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21, 23] total 52 [2024-11-19 11:08:14,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681135296] [2024-11-19 11:08:14,607 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:08:14,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2024-11-19 11:08:14,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:08:14,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2024-11-19 11:08:14,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=324, Invalid=2432, Unknown=0, NotChecked=0, Total=2756 [2024-11-19 11:08:14,609 INFO L87 Difference]: Start difference. First operand 76 states and 79 transitions. Second operand has 53 states, 52 states have (on average 2.923076923076923) internal successors, (152), 51 states have internal predecessors, (152), 10 states have call successors, (10), 3 states have call predecessors, (10), 17 states have return successors, (25), 25 states have call predecessors, (25), 8 states have call successors, (25) [2024-11-19 11:08:15,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:08:15,325 INFO L93 Difference]: Finished difference Result 141 states and 159 transitions. [2024-11-19 11:08:15,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-19 11:08:15,326 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 52 states have (on average 2.923076923076923) internal successors, (152), 51 states have internal predecessors, (152), 10 states have call successors, (10), 3 states have call predecessors, (10), 17 states have return successors, (25), 25 states have call predecessors, (25), 8 states have call successors, (25) Word has length 117 [2024-11-19 11:08:15,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:08:15,327 INFO L225 Difference]: With dead ends: 141 [2024-11-19 11:08:15,327 INFO L226 Difference]: Without dead ends: 116 [2024-11-19 11:08:15,328 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 208 SyntacticMatches, 1 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1619 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=945, Invalid=6027, Unknown=0, NotChecked=0, Total=6972 [2024-11-19 11:08:15,328 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 208 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 11:08:15,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 423 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 11:08:15,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-19 11:08:15,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-11-19 11:08:15,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 94 states have (on average 1.0319148936170213) internal successors, (97), 94 states have internal predecessors, (97), 4 states have call successors, (4), 3 states have call predecessors, (4), 17 states have return successors, (18), 18 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-19 11:08:15,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 119 transitions. [2024-11-19 11:08:15,334 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 119 transitions. Word has length 117 [2024-11-19 11:08:15,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:08:15,334 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 119 transitions. [2024-11-19 11:08:15,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 52 states have (on average 2.923076923076923) internal successors, (152), 51 states have internal predecessors, (152), 10 states have call successors, (10), 3 states have call predecessors, (10), 17 states have return successors, (25), 25 states have call predecessors, (25), 8 states have call successors, (25) [2024-11-19 11:08:15,335 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 119 transitions. [2024-11-19 11:08:15,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-11-19 11:08:15,337 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:08:15,337 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:08:15,351 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-19 11:08:15,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:08:15,539 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting multErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-19 11:08:15,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:08:15,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1040894782, now seen corresponding path program 4 times [2024-11-19 11:08:15,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:08:15,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635426418] [2024-11-19 11:08:15,539 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 11:08:15,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:08:15,593 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 11:08:15,593 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:08:17,261 INFO L134 CoverageAnalysis]: Checked inductivity of 1504 backedges. 0 proven. 754 refuted. 0 times theorem prover too weak. 750 trivial. 0 not checked. [2024-11-19 11:08:17,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:08:17,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635426418] [2024-11-19 11:08:17,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635426418] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:08:17,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [490707706] [2024-11-19 11:08:17,261 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 11:08:17,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:08:17,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:08:17,263 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) [2024-11-19 11:08:17,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-19 11:08:17,380 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 11:08:17,381 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:08:17,383 INFO L255 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-11-19 11:08:17,385 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:08:18,007 INFO L134 CoverageAnalysis]: Checked inductivity of 1504 backedges. 0 proven. 754 refuted. 0 times theorem prover too weak. 750 trivial. 0 not checked. [2024-11-19 11:08:18,007 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:08:54,063 INFO L134 CoverageAnalysis]: Checked inductivity of 1504 backedges. 78 proven. 838 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked. [2024-11-19 11:08:54,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [490707706] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:08:54,064 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:08:54,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37, 39] total 91 [2024-11-19 11:08:54,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441347396] [2024-11-19 11:08:54,064 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:08:54,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 92 states [2024-11-19 11:08:54,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:08:54,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2024-11-19 11:08:54,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=972, Invalid=7400, Unknown=0, NotChecked=0, Total=8372 [2024-11-19 11:08:54,072 INFO L87 Difference]: Start difference. First operand 116 states and 119 transitions. Second operand has 92 states, 91 states have (on average 2.6153846153846154) internal successors, (238), 90 states have internal predecessors, (238), 10 states have call successors, (10), 3 states have call predecessors, (10), 32 states have return successors, (49), 49 states have call predecessors, (49), 8 states have call successors, (49) [2024-11-19 11:08:56,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:08:56,557 INFO L93 Difference]: Finished difference Result 245 states and 279 transitions. [2024-11-19 11:08:56,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2024-11-19 11:08:56,558 INFO L78 Accepts]: Start accepts. Automaton has has 92 states, 91 states have (on average 2.6153846153846154) internal successors, (238), 90 states have internal predecessors, (238), 10 states have call successors, (10), 3 states have call predecessors, (10), 32 states have return successors, (49), 49 states have call predecessors, (49), 8 states have call successors, (49) Word has length 213 [2024-11-19 11:08:56,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:08:56,561 INFO L225 Difference]: With dead ends: 245 [2024-11-19 11:08:56,561 INFO L226 Difference]: Without dead ends: 196 [2024-11-19 11:08:56,567 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 539 GetRequests, 385 SyntacticMatches, 1 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7193 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=2976, Invalid=20894, Unknown=0, NotChecked=0, Total=23870 [2024-11-19 11:08:56,571 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 436 mSDsluCounter, 852 mSDsCounter, 0 mSdLazyCounter, 1807 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 894 SdHoareTripleChecker+Invalid, 1981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 1807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 11:08:56,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [436 Valid, 894 Invalid, 1981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 1807 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 11:08:56,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-11-19 11:08:56,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2024-11-19 11:08:56,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 158 states have (on average 1.018987341772152) internal successors, (161), 158 states have internal predecessors, (161), 4 states have call successors, (4), 3 states have call predecessors, (4), 33 states have return successors, (34), 34 states have call predecessors, (34), 3 states have call successors, (34) [2024-11-19 11:08:56,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 199 transitions. [2024-11-19 11:08:56,596 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 199 transitions. Word has length 213 [2024-11-19 11:08:56,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:08:56,596 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 199 transitions. [2024-11-19 11:08:56,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 92 states, 91 states have (on average 2.6153846153846154) internal successors, (238), 90 states have internal predecessors, (238), 10 states have call successors, (10), 3 states have call predecessors, (10), 32 states have return successors, (49), 49 states have call predecessors, (49), 8 states have call successors, (49) [2024-11-19 11:08:56,596 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 199 transitions. [2024-11-19 11:08:56,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2024-11-19 11:08:56,603 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:08:56,603 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 32, 32, 32, 32, 32, 32, 32, 32, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:08:56,616 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-19 11:08:56,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-19 11:08:56,804 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting multErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-19 11:08:56,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:08:56,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1092635454, now seen corresponding path program 5 times [2024-11-19 11:08:56,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:08:56,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994792960] [2024-11-19 11:08:56,805 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 11:08:56,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:08:57,135 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 33 check-sat command(s) [2024-11-19 11:08:57,136 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:09:01,956 INFO L134 CoverageAnalysis]: Checked inductivity of 6080 backedges. 0 proven. 3802 refuted. 0 times theorem prover too weak. 2278 trivial. 0 not checked. [2024-11-19 11:09:01,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:01,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994792960] [2024-11-19 11:09:01,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994792960] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:09:01,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [672696390] [2024-11-19 11:09:01,956 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 11:09:01,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:01,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:09:01,960 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) [2024-11-19 11:09:01,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-19 11:09:02,468 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 33 check-sat command(s) [2024-11-19 11:09:02,469 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:09:02,479 INFO L255 TraceCheckSpWp]: Trace formula consists of 849 conjuncts, 130 conjuncts are in the unsatisfiable core [2024-11-19 11:09:02,486 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:09:04,738 INFO L134 CoverageAnalysis]: Checked inductivity of 6080 backedges. 0 proven. 2794 refuted. 0 times theorem prover too weak. 3286 trivial. 0 not checked. [2024-11-19 11:09:04,738 INFO L311 TraceCheckSpWp]: Computing backward predicates...