./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound10.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 6d5fb336862157190b75f459fa5ac35efb8ca70e207f909b082fde37cf98e7f7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 20:22:27,885 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 20:22:27,940 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-24 20:22:27,945 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 20:22:27,947 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 20:22:27,969 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 20:22:27,969 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 20:22:27,970 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 20:22:27,970 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 20:22:27,971 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 20:22:27,971 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 20:22:27,971 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 20:22:27,972 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 20:22:27,973 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 20:22:27,973 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 20:22:27,974 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 20:22:27,974 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 20:22:27,974 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 20:22:27,974 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 20:22:27,974 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 20:22:27,975 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 20:22:27,975 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 20:22:27,975 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 20:22:27,976 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 20:22:27,976 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 20:22:27,976 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-24 20:22:27,976 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 20:22:27,976 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 20:22:27,977 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 20:22:27,977 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 20:22:27,977 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 20:22:27,977 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 20:22:27,977 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 20:22:27,978 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 20:22:27,978 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 20:22:27,978 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 20:22:27,978 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 20:22:27,978 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 20:22:27,978 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 20:22:27,978 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 20:22:27,979 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 20:22:27,979 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 20:22:27,979 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 20:22:27,979 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 20:22:27,979 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d5fb336862157190b75f459fa5ac35efb8ca70e207f909b082fde37cf98e7f7 [2024-10-24 20:22:28,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 20:22:28,191 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 20:22:28,194 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 20:22:28,195 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 20:22:28,195 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 20:22:28,196 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound10.c [2024-10-24 20:22:29,390 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 20:22:29,531 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 20:22:29,532 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound10.c [2024-10-24 20:22:29,537 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e63a2c48b/0095267a8099436ea45937cd135caf90/FLAG12cb7ec31 [2024-10-24 20:22:29,547 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e63a2c48b/0095267a8099436ea45937cd135caf90 [2024-10-24 20:22:29,549 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 20:22:29,550 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 20:22:29,551 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 20:22:29,551 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 20:22:29,555 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 20:22:29,555 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:22:29" (1/1) ... [2024-10-24 20:22:29,556 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58a1ece8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:22:29, skipping insertion in model container [2024-10-24 20:22:29,557 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:22:29" (1/1) ... [2024-10-24 20:22:29,572 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 20:22:29,740 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 20:22:29,747 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 20:22:29,760 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 20:22:29,771 INFO L204 MainTranslator]: Completed translation [2024-10-24 20:22:29,772 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:22:29 WrapperNode [2024-10-24 20:22:29,772 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 20:22:29,773 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 20:22:29,773 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 20:22:29,773 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 20:22:29,778 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:22:29" (1/1) ... [2024-10-24 20:22:29,783 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:22:29" (1/1) ... [2024-10-24 20:22:29,800 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 86 [2024-10-24 20:22:29,800 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 20:22:29,801 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 20:22:29,801 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 20:22:29,801 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 20:22:29,809 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:22:29" (1/1) ... [2024-10-24 20:22:29,809 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:22:29" (1/1) ... [2024-10-24 20:22:29,810 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:22:29" (1/1) ... [2024-10-24 20:22:29,822 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]. [2024-10-24 20:22:29,822 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:22:29" (1/1) ... [2024-10-24 20:22:29,822 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:22:29" (1/1) ... [2024-10-24 20:22:29,825 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:22:29" (1/1) ... [2024-10-24 20:22:29,829 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:22:29" (1/1) ... [2024-10-24 20:22:29,830 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:22:29" (1/1) ... [2024-10-24 20:22:29,830 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:22:29" (1/1) ... [2024-10-24 20:22:29,833 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 20:22:29,833 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 20:22:29,833 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 20:22:29,833 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 20:22:29,834 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:22:29" (1/1) ... [2024-10-24 20:22:29,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 20:22:29,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:22:29,859 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 20:22:29,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 20:22:29,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 20:22:29,897 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 20:22:29,897 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 20:22:29,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 20:22:29,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 20:22:29,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 20:22:29,898 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-24 20:22:29,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-24 20:22:29,949 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 20:22:29,951 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 20:22:30,155 INFO L? ?]: Removed 50 outVars from TransFormulas that were not future-live. [2024-10-24 20:22:30,155 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 20:22:30,172 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 20:22:30,172 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-24 20:22:30,173 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:22:30 BoogieIcfgContainer [2024-10-24 20:22:30,173 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 20:22:30,174 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 20:22:30,174 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 20:22:30,178 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 20:22:30,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 08:22:29" (1/3) ... [2024-10-24 20:22:30,178 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea00233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:22:30, skipping insertion in model container [2024-10-24 20:22:30,179 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:22:29" (2/3) ... [2024-10-24 20:22:30,179 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea00233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:22:30, skipping insertion in model container [2024-10-24 20:22:30,179 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:22:30" (3/3) ... [2024-10-24 20:22:30,180 INFO L112 eAbstractionObserver]: Analyzing ICFG hard-ll_valuebound10.c [2024-10-24 20:22:30,191 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 20:22:30,191 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2024-10-24 20:22:30,234 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 20:22:30,239 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;@2ae2b543, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 20:22:30,239 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-10-24 20:22:30,242 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 39 states have (on average 1.8461538461538463) internal successors, (72), 63 states have internal predecessors, (72), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-24 20:22:30,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-24 20:22:30,247 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:22:30,247 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:22:30,247 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:22:30,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:22:30,251 INFO L85 PathProgramCache]: Analyzing trace with hash -86371443, now seen corresponding path program 1 times [2024-10-24 20:22:30,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:22:30,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67327569] [2024-10-24 20:22:30,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:22:30,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:22:30,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:30,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:22:30,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:30,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:22:30,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:30,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:22:30,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:30,382 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 20:22:30,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:22:30,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67327569] [2024-10-24 20:22:30,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67327569] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:22:30,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:22:30,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 20:22:30,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625952248] [2024-10-24 20:22:30,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:22:30,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 20:22:30,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:22:30,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 20:22:30,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 20:22:30,406 INFO L87 Difference]: Start difference. First operand has 76 states, 39 states have (on average 1.8461538461538463) internal successors, (72), 63 states have internal predecessors, (72), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 20:22:30,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:22:30,426 INFO L93 Difference]: Finished difference Result 150 states and 191 transitions. [2024-10-24 20:22:30,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 20:22:30,428 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2024-10-24 20:22:30,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:22:30,434 INFO L225 Difference]: With dead ends: 150 [2024-10-24 20:22:30,434 INFO L226 Difference]: Without dead ends: 72 [2024-10-24 20:22:30,436 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 20:22:30,438 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 20:22:30,439 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 84 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 20:22:30,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-10-24 20:22:30,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2024-10-24 20:22:30,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 38 states have (on average 1.6842105263157894) internal successors, (64), 61 states have internal predecessors, (64), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-24 20:22:30,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 80 transitions. [2024-10-24 20:22:30,516 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 80 transitions. Word has length 21 [2024-10-24 20:22:30,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:22:30,518 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 80 transitions. [2024-10-24 20:22:30,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 20:22:30,518 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 80 transitions. [2024-10-24 20:22:30,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-10-24 20:22:30,520 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:22:30,520 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:22:30,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 20:22:30,521 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:22:30,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:22:30,522 INFO L85 PathProgramCache]: Analyzing trace with hash 140634780, now seen corresponding path program 1 times [2024-10-24 20:22:30,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:22:30,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722292845] [2024-10-24 20:22:30,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:22:30,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:22:30,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:22:30,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1282855451] [2024-10-24 20:22:30,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:22:30,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:22:30,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:22:30,571 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:22:30,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 20:22:30,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:30,632 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 20:22:30,637 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:22:30,675 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-24 20:22:30,676 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:22:30,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:22:30,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722292845] [2024-10-24 20:22:30,676 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:22:30,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282855451] [2024-10-24 20:22:30,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1282855451] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:22:30,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:22:30,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 20:22:30,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065660419] [2024-10-24 20:22:30,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:22:30,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 20:22:30,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:22:30,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 20:22:30,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 20:22:30,681 INFO L87 Difference]: Start difference. First operand 72 states and 80 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 20:22:30,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:22:30,745 INFO L93 Difference]: Finished difference Result 148 states and 167 transitions. [2024-10-24 20:22:30,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 20:22:30,746 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 30 [2024-10-24 20:22:30,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:22:30,747 INFO L225 Difference]: With dead ends: 148 [2024-10-24 20:22:30,747 INFO L226 Difference]: Without dead ends: 99 [2024-10-24 20:22:30,747 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 20:22:30,748 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 20 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:22:30,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 128 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:22:30,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-10-24 20:22:30,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 93. [2024-10-24 20:22:30,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 54 states have (on average 1.6111111111111112) internal successors, (87), 77 states have internal predecessors, (87), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-24 20:22:30,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 113 transitions. [2024-10-24 20:22:30,758 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 113 transitions. Word has length 30 [2024-10-24 20:22:30,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:22:30,761 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 113 transitions. [2024-10-24 20:22:30,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 20:22:30,762 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 113 transitions. [2024-10-24 20:22:30,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-24 20:22:30,763 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:22:30,763 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:22:30,776 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 20:22:30,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:22:30,968 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:22:30,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:22:30,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1677847877, now seen corresponding path program 1 times [2024-10-24 20:22:30,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:22:30,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418158131] [2024-10-24 20:22:30,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:22:30,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:22:30,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:31,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:22:31,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:31,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:22:31,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:31,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:22:31,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:31,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 20:22:31,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:31,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 20:22:31,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:31,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 20:22:31,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:31,112 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-24 20:22:31,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:22:31,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418158131] [2024-10-24 20:22:31,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418158131] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:22:31,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:22:31,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 20:22:31,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595966893] [2024-10-24 20:22:31,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:22:31,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 20:22:31,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:22:31,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 20:22:31,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 20:22:31,114 INFO L87 Difference]: Start difference. First operand 93 states and 113 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-24 20:22:31,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:22:31,204 INFO L93 Difference]: Finished difference Result 93 states and 113 transitions. [2024-10-24 20:22:31,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 20:22:31,204 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), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 38 [2024-10-24 20:22:31,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:22:31,205 INFO L225 Difference]: With dead ends: 93 [2024-10-24 20:22:31,205 INFO L226 Difference]: Without dead ends: 91 [2024-10-24 20:22:31,206 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 20:22:31,206 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 39 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:22:31,207 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 74 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:22:31,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-10-24 20:22:31,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-10-24 20:22:31,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 54 states have (on average 1.5555555555555556) internal successors, (84), 75 states have internal predecessors, (84), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-24 20:22:31,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 110 transitions. [2024-10-24 20:22:31,222 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 110 transitions. Word has length 38 [2024-10-24 20:22:31,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:22:31,222 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 110 transitions. [2024-10-24 20:22:31,222 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), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-24 20:22:31,223 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 110 transitions. [2024-10-24 20:22:31,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-24 20:22:31,224 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:22:31,224 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:22:31,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 20:22:31,224 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:22:31,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:22:31,225 INFO L85 PathProgramCache]: Analyzing trace with hash 473675319, now seen corresponding path program 1 times [2024-10-24 20:22:31,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:22:31,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243985772] [2024-10-24 20:22:31,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:22:31,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:22:31,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:22:31,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1599538872] [2024-10-24 20:22:31,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:22:31,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:22:31,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:22:31,248 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:22:31,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 20:22:31,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:31,290 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 20:22:31,291 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:22:31,315 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-24 20:22:31,315 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:22:31,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:22:31,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243985772] [2024-10-24 20:22:31,316 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:22:31,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599538872] [2024-10-24 20:22:31,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1599538872] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:22:31,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:22:31,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 20:22:31,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479673220] [2024-10-24 20:22:31,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:22:31,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 20:22:31,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:22:31,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 20:22:31,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 20:22:31,318 INFO L87 Difference]: Start difference. First operand 91 states and 110 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-24 20:22:31,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:22:31,360 INFO L93 Difference]: Finished difference Result 125 states and 153 transitions. [2024-10-24 20:22:31,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 20:22:31,361 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 39 [2024-10-24 20:22:31,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:22:31,362 INFO L225 Difference]: With dead ends: 125 [2024-10-24 20:22:31,362 INFO L226 Difference]: Without dead ends: 121 [2024-10-24 20:22:31,363 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 20:22:31,363 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 37 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 20:22:31,364 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 102 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 20:22:31,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-10-24 20:22:31,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 108. [2024-10-24 20:22:31,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 69 states have (on average 1.536231884057971) internal successors, (106), 90 states have internal predecessors, (106), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-24 20:22:31,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 136 transitions. [2024-10-24 20:22:31,373 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 136 transitions. Word has length 39 [2024-10-24 20:22:31,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:22:31,373 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 136 transitions. [2024-10-24 20:22:31,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-24 20:22:31,374 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 136 transitions. [2024-10-24 20:22:31,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-24 20:22:31,374 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:22:31,375 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:22:31,388 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 20:22:31,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-10-24 20:22:31,579 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:22:31,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:22:31,580 INFO L85 PathProgramCache]: Analyzing trace with hash 473676697, now seen corresponding path program 1 times [2024-10-24 20:22:31,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:22:31,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929520637] [2024-10-24 20:22:31,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:22:31,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:22:31,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:31,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:22:31,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:31,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:22:31,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:31,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:22:31,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:31,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 20:22:31,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:31,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 20:22:31,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:31,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 20:22:31,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:31,675 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-24 20:22:31,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:22:31,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929520637] [2024-10-24 20:22:31,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929520637] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:22:31,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:22:31,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 20:22:31,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013847791] [2024-10-24 20:22:31,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:22:31,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 20:22:31,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:22:31,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 20:22:31,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 20:22:31,677 INFO L87 Difference]: Start difference. First operand 108 states and 136 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-24 20:22:31,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:22:31,725 INFO L93 Difference]: Finished difference Result 115 states and 141 transitions. [2024-10-24 20:22:31,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 20:22:31,726 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 39 [2024-10-24 20:22:31,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:22:31,727 INFO L225 Difference]: With dead ends: 115 [2024-10-24 20:22:31,727 INFO L226 Difference]: Without dead ends: 114 [2024-10-24 20:22:31,727 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 20:22:31,728 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 14 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 20:22:31,728 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 123 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 20:22:31,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-10-24 20:22:31,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 108. [2024-10-24 20:22:31,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 69 states have (on average 1.5217391304347827) internal successors, (105), 90 states have internal predecessors, (105), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-24 20:22:31,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 135 transitions. [2024-10-24 20:22:31,743 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 135 transitions. Word has length 39 [2024-10-24 20:22:31,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:22:31,743 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 135 transitions. [2024-10-24 20:22:31,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-24 20:22:31,744 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 135 transitions. [2024-10-24 20:22:31,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-24 20:22:31,746 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:22:31,746 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:22:31,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 20:22:31,747 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:22:31,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:22:31,748 INFO L85 PathProgramCache]: Analyzing trace with hash -64549223, now seen corresponding path program 1 times [2024-10-24 20:22:31,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:22:31,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530354080] [2024-10-24 20:22:31,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:22:31,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:22:31,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:31,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:22:31,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:31,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:22:31,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:31,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:22:31,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:31,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 20:22:31,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:31,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 20:22:31,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:31,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 20:22:31,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:31,904 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-24 20:22:31,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:22:31,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530354080] [2024-10-24 20:22:31,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530354080] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:22:31,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:22:31,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 20:22:31,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293003724] [2024-10-24 20:22:31,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:22:31,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 20:22:31,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:22:31,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 20:22:31,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 20:22:31,907 INFO L87 Difference]: Start difference. First operand 108 states and 135 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-24 20:22:32,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:22:32,087 INFO L93 Difference]: Finished difference Result 123 states and 149 transitions. [2024-10-24 20:22:32,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 20:22:32,088 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 41 [2024-10-24 20:22:32,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:22:32,089 INFO L225 Difference]: With dead ends: 123 [2024-10-24 20:22:32,089 INFO L226 Difference]: Without dead ends: 122 [2024-10-24 20:22:32,089 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 20:22:32,090 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 85 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:22:32,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 104 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:22:32,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-10-24 20:22:32,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 112. [2024-10-24 20:22:32,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 73 states have (on average 1.4931506849315068) internal successors, (109), 94 states have internal predecessors, (109), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-24 20:22:32,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 139 transitions. [2024-10-24 20:22:32,103 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 139 transitions. Word has length 41 [2024-10-24 20:22:32,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:22:32,103 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 139 transitions. [2024-10-24 20:22:32,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-24 20:22:32,103 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 139 transitions. [2024-10-24 20:22:32,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-24 20:22:32,104 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:22:32,104 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:22:32,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 20:22:32,105 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:22:32,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:22:32,105 INFO L85 PathProgramCache]: Analyzing trace with hash -2001025828, now seen corresponding path program 1 times [2024-10-24 20:22:32,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:22:32,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404069463] [2024-10-24 20:22:32,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:22:32,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:22:32,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:22:32,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1615257128] [2024-10-24 20:22:32,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:22:32,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:22:32,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:22:32,129 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:22:32,130 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 20:22:32,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:32,170 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 20:22:32,172 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:22:32,258 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-24 20:22:32,258 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:22:32,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:22:32,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404069463] [2024-10-24 20:22:32,258 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:22:32,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615257128] [2024-10-24 20:22:32,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1615257128] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:22:32,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:22:32,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 20:22:32,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717102986] [2024-10-24 20:22:32,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:22:32,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 20:22:32,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:22:32,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 20:22:32,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 20:22:32,260 INFO L87 Difference]: Start difference. First operand 112 states and 139 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-24 20:22:32,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:22:32,342 INFO L93 Difference]: Finished difference Result 123 states and 146 transitions. [2024-10-24 20:22:32,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 20:22:32,342 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 42 [2024-10-24 20:22:32,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:22:32,343 INFO L225 Difference]: With dead ends: 123 [2024-10-24 20:22:32,343 INFO L226 Difference]: Without dead ends: 120 [2024-10-24 20:22:32,343 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 20:22:32,344 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 30 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:22:32,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 95 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:22:32,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-10-24 20:22:32,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 113. [2024-10-24 20:22:32,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 74 states have (on average 1.4594594594594594) internal successors, (108), 95 states have internal predecessors, (108), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-24 20:22:32,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 138 transitions. [2024-10-24 20:22:32,363 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 138 transitions. Word has length 42 [2024-10-24 20:22:32,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:22:32,363 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 138 transitions. [2024-10-24 20:22:32,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-24 20:22:32,363 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 138 transitions. [2024-10-24 20:22:32,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-24 20:22:32,366 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:22:32,366 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:22:32,378 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-24 20:22:32,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:22:32,571 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:22:32,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:22:32,572 INFO L85 PathProgramCache]: Analyzing trace with hash -573724229, now seen corresponding path program 1 times [2024-10-24 20:22:32,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:22:32,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732459574] [2024-10-24 20:22:32,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:22:32,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:22:32,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:22:32,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [399819079] [2024-10-24 20:22:32,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:22:32,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:22:32,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:22:32,591 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:22:32,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-24 20:22:32,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:32,633 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 20:22:32,635 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:22:32,740 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-10-24 20:22:32,740 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:22:32,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:22:32,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732459574] [2024-10-24 20:22:32,843 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:22:32,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399819079] [2024-10-24 20:22:32,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [399819079] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:22:32,844 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:22:32,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-10-24 20:22:32,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779643808] [2024-10-24 20:22:32,844 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:22:32,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 20:22:32,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:22:32,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 20:22:32,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-10-24 20:22:32,845 INFO L87 Difference]: Start difference. First operand 113 states and 138 transitions. Second operand has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-10-24 20:22:32,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:22:32,984 INFO L93 Difference]: Finished difference Result 127 states and 156 transitions. [2024-10-24 20:22:32,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 20:22:32,984 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 53 [2024-10-24 20:22:32,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:22:32,985 INFO L225 Difference]: With dead ends: 127 [2024-10-24 20:22:32,985 INFO L226 Difference]: Without dead ends: 119 [2024-10-24 20:22:32,985 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-10-24 20:22:32,986 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 48 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:22:32,986 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 245 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:22:32,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-10-24 20:22:33,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2024-10-24 20:22:33,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 82 states have (on average 1.353658536585366) internal successors, (111), 99 states have internal predecessors, (111), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-24 20:22:33,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 145 transitions. [2024-10-24 20:22:33,004 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 145 transitions. Word has length 53 [2024-10-24 20:22:33,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:22:33,004 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 145 transitions. [2024-10-24 20:22:33,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-10-24 20:22:33,005 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 145 transitions. [2024-10-24 20:22:33,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-24 20:22:33,007 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:22:33,008 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-10-24 20:22:33,022 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-24 20:22:33,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:22:33,212 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:22:33,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:22:33,212 INFO L85 PathProgramCache]: Analyzing trace with hash -605581863, now seen corresponding path program 1 times [2024-10-24 20:22:33,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:22:33,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799696439] [2024-10-24 20:22:33,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:22:33,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:22:33,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:22:33,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1608076137] [2024-10-24 20:22:33,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:22:33,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:22:33,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:22:33,223 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:22:33,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-24 20:22:33,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:33,261 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 20:22:33,262 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:22:33,357 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-10-24 20:22:33,358 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:22:33,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:22:33,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799696439] [2024-10-24 20:22:33,454 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:22:33,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608076137] [2024-10-24 20:22:33,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1608076137] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:22:33,454 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:22:33,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-10-24 20:22:33,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460667027] [2024-10-24 20:22:33,454 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:22:33,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 20:22:33,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:22:33,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 20:22:33,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-10-24 20:22:33,455 INFO L87 Difference]: Start difference. First operand 119 states and 145 transitions. Second operand has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-10-24 20:22:33,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:22:33,605 INFO L93 Difference]: Finished difference Result 191 states and 244 transitions. [2024-10-24 20:22:33,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 20:22:33,605 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 54 [2024-10-24 20:22:33,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:22:33,607 INFO L225 Difference]: With dead ends: 191 [2024-10-24 20:22:33,607 INFO L226 Difference]: Without dead ends: 187 [2024-10-24 20:22:33,607 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-10-24 20:22:33,607 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 103 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:22:33,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 191 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:22:33,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-10-24 20:22:33,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 178. [2024-10-24 20:22:33,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 132 states have (on average 1.356060606060606) internal successors, (179), 149 states have internal predecessors, (179), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-24 20:22:33,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 231 transitions. [2024-10-24 20:22:33,621 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 231 transitions. Word has length 54 [2024-10-24 20:22:33,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:22:33,622 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 231 transitions. [2024-10-24 20:22:33,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-10-24 20:22:33,622 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 231 transitions. [2024-10-24 20:22:33,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 20:22:33,623 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:22:33,623 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:22:33,639 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-24 20:22:33,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:22:33,825 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:22:33,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:22:33,826 INFO L85 PathProgramCache]: Analyzing trace with hash -415985539, now seen corresponding path program 1 times [2024-10-24 20:22:33,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:22:33,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363458721] [2024-10-24 20:22:33,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:22:33,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:22:33,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:33,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:22:33,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:33,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:22:33,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:33,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:22:33,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:33,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 20:22:33,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:33,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 20:22:33,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:33,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 20:22:33,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:33,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 20:22:33,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:33,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 20:22:33,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:33,915 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-10-24 20:22:33,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:22:33,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363458721] [2024-10-24 20:22:33,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363458721] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:22:33,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:22:33,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 20:22:33,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895943374] [2024-10-24 20:22:33,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:22:33,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 20:22:33,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:22:33,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 20:22:33,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 20:22:33,917 INFO L87 Difference]: Start difference. First operand 178 states and 231 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-24 20:22:34,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:22:34,075 INFO L93 Difference]: Finished difference Result 187 states and 240 transitions. [2024-10-24 20:22:34,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 20:22:34,076 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 58 [2024-10-24 20:22:34,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:22:34,078 INFO L225 Difference]: With dead ends: 187 [2024-10-24 20:22:34,078 INFO L226 Difference]: Without dead ends: 172 [2024-10-24 20:22:34,078 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 20:22:34,079 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 39 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:22:34,079 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 134 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:22:34,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-10-24 20:22:34,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 145. [2024-10-24 20:22:34,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 105 states have (on average 1.4095238095238096) internal successors, (148), 122 states have internal predecessors, (148), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 20:22:34,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 188 transitions. [2024-10-24 20:22:34,096 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 188 transitions. Word has length 58 [2024-10-24 20:22:34,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:22:34,096 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 188 transitions. [2024-10-24 20:22:34,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-24 20:22:34,096 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 188 transitions. [2024-10-24 20:22:34,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-24 20:22:34,099 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:22:34,099 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:22:34,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 20:22:34,099 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:22:34,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:22:34,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1887727782, now seen corresponding path program 1 times [2024-10-24 20:22:34,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:22:34,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499648447] [2024-10-24 20:22:34,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:22:34,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:22:34,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:34,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:22:34,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:34,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:22:34,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:34,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:22:34,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:34,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 20:22:34,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:34,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 20:22:34,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:34,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 20:22:34,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:34,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 20:22:34,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:34,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 20:22:34,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:34,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-24 20:22:34,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:34,183 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-10-24 20:22:34,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:22:34,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499648447] [2024-10-24 20:22:34,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499648447] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:22:34,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640660899] [2024-10-24 20:22:34,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:22:34,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:22:34,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:22:34,185 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:22:34,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-24 20:22:34,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:34,223 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 20:22:34,225 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:22:34,247 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-10-24 20:22:34,247 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:22:34,306 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-10-24 20:22:34,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1640660899] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:22:34,306 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:22:34,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-10-24 20:22:34,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572147959] [2024-10-24 20:22:34,307 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:22:34,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 20:22:34,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:22:34,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 20:22:34,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 20:22:34,308 INFO L87 Difference]: Start difference. First operand 145 states and 188 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-10-24 20:22:34,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:22:34,430 INFO L93 Difference]: Finished difference Result 255 states and 327 transitions. [2024-10-24 20:22:34,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 20:22:34,430 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 62 [2024-10-24 20:22:34,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:22:34,431 INFO L225 Difference]: With dead ends: 255 [2024-10-24 20:22:34,432 INFO L226 Difference]: Without dead ends: 253 [2024-10-24 20:22:34,432 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 20:22:34,432 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 129 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:22:34,432 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 207 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:22:34,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2024-10-24 20:22:34,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 203. [2024-10-24 20:22:34,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 153 states have (on average 1.4052287581699345) internal successors, (215), 170 states have internal predecessors, (215), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-10-24 20:22:34,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 275 transitions. [2024-10-24 20:22:34,449 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 275 transitions. Word has length 62 [2024-10-24 20:22:34,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:22:34,449 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 275 transitions. [2024-10-24 20:22:34,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-10-24 20:22:34,449 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 275 transitions. [2024-10-24 20:22:34,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-24 20:22:34,450 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:22:34,450 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:22:34,462 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-24 20:22:34,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:22:34,651 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:22:34,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:22:34,651 INFO L85 PathProgramCache]: Analyzing trace with hash -341860360, now seen corresponding path program 2 times [2024-10-24 20:22:34,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:22:34,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115599882] [2024-10-24 20:22:34,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:22:34,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:22:34,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:22:34,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [597708959] [2024-10-24 20:22:34,664 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 20:22:34,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:22:34,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:22:34,666 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:22:34,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-24 20:22:34,711 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 20:22:34,711 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:22:34,712 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-24 20:22:34,714 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:22:34,925 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-10-24 20:22:34,925 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:22:35,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:22:35,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115599882] [2024-10-24 20:22:35,045 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:22:35,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597708959] [2024-10-24 20:22:35,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597708959] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:22:35,046 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:22:35,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-10-24 20:22:35,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435790818] [2024-10-24 20:22:35,046 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:22:35,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 20:22:35,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:22:35,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 20:22:35,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-10-24 20:22:35,047 INFO L87 Difference]: Start difference. First operand 203 states and 275 transitions. Second operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 states have internal predecessors, (31), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2024-10-24 20:22:35,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:22:35,424 INFO L93 Difference]: Finished difference Result 273 states and 366 transitions. [2024-10-24 20:22:35,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 20:22:35,425 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 states have internal predecessors, (31), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 77 [2024-10-24 20:22:35,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:22:35,426 INFO L225 Difference]: With dead ends: 273 [2024-10-24 20:22:35,426 INFO L226 Difference]: Without dead ends: 269 [2024-10-24 20:22:35,426 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2024-10-24 20:22:35,427 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 143 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 20:22:35,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 382 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 20:22:35,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2024-10-24 20:22:35,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 203. [2024-10-24 20:22:35,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 153 states have (on average 1.392156862745098) internal successors, (213), 170 states have internal predecessors, (213), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-10-24 20:22:35,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 273 transitions. [2024-10-24 20:22:35,443 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 273 transitions. Word has length 77 [2024-10-24 20:22:35,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:22:35,443 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 273 transitions. [2024-10-24 20:22:35,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 states have internal predecessors, (31), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2024-10-24 20:22:35,444 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 273 transitions. [2024-10-24 20:22:35,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-24 20:22:35,444 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:22:35,444 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:22:35,457 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-24 20:22:35,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:22:35,645 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:22:35,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:22:35,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1771595447, now seen corresponding path program 1 times [2024-10-24 20:22:35,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:22:35,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469622401] [2024-10-24 20:22:35,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:22:35,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:22:35,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:35,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:22:35,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:35,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:22:35,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:35,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:22:35,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:35,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 20:22:35,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:35,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 20:22:35,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:35,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 20:22:35,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:35,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 20:22:35,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:35,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 20:22:35,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:35,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-24 20:22:35,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:35,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 20:22:35,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:35,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 20:22:35,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:35,698 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-10-24 20:22:35,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:22:35,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469622401] [2024-10-24 20:22:35,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469622401] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:22:35,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:22:35,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 20:22:35,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874439888] [2024-10-24 20:22:35,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:22:35,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 20:22:35,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:22:35,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 20:22:35,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 20:22:35,700 INFO L87 Difference]: Start difference. First operand 203 states and 273 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-10-24 20:22:35,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:22:35,742 INFO L93 Difference]: Finished difference Result 203 states and 273 transitions. [2024-10-24 20:22:35,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 20:22:35,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 84 [2024-10-24 20:22:35,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:22:35,744 INFO L225 Difference]: With dead ends: 203 [2024-10-24 20:22:35,744 INFO L226 Difference]: Without dead ends: 202 [2024-10-24 20:22:35,746 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 20:22:35,747 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 2 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 20:22:35,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 113 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 20:22:35,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2024-10-24 20:22:35,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2024-10-24 20:22:35,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 153 states have (on average 1.3725490196078431) internal successors, (210), 169 states have internal predecessors, (210), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-10-24 20:22:35,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 270 transitions. [2024-10-24 20:22:35,766 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 270 transitions. Word has length 84 [2024-10-24 20:22:35,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:22:35,766 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 270 transitions. [2024-10-24 20:22:35,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-10-24 20:22:35,767 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 270 transitions. [2024-10-24 20:22:35,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-24 20:22:35,767 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:22:35,767 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:22:35,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 20:22:35,768 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:22:35,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:22:35,768 INFO L85 PathProgramCache]: Analyzing trace with hash 915116102, now seen corresponding path program 1 times [2024-10-24 20:22:35,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:22:35,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629976658] [2024-10-24 20:22:35,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:22:35,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:22:35,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:35,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:22:35,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:35,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:22:35,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:35,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:22:35,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:35,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 20:22:35,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:35,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 20:22:35,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:35,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 20:22:35,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:35,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 20:22:35,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:35,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 20:22:35,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:35,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-24 20:22:35,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:35,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 20:22:35,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:35,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 20:22:35,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:35,938 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-10-24 20:22:35,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:22:35,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629976658] [2024-10-24 20:22:35,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629976658] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:22:35,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:22:35,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 20:22:35,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528928782] [2024-10-24 20:22:35,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:22:35,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 20:22:35,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:22:35,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 20:22:35,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 20:22:35,940 INFO L87 Difference]: Start difference. First operand 202 states and 270 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-24 20:22:36,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:22:36,162 INFO L93 Difference]: Finished difference Result 363 states and 505 transitions. [2024-10-24 20:22:36,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 20:22:36,163 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 85 [2024-10-24 20:22:36,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:22:36,164 INFO L225 Difference]: With dead ends: 363 [2024-10-24 20:22:36,164 INFO L226 Difference]: Without dead ends: 362 [2024-10-24 20:22:36,164 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-10-24 20:22:36,165 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 101 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 20:22:36,165 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 206 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 20:22:36,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-10-24 20:22:36,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 304. [2024-10-24 20:22:36,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 243 states have (on average 1.4362139917695473) internal successors, (349), 259 states have internal predecessors, (349), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-24 20:22:36,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 433 transitions. [2024-10-24 20:22:36,188 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 433 transitions. Word has length 85 [2024-10-24 20:22:36,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:22:36,189 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 433 transitions. [2024-10-24 20:22:36,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-24 20:22:36,189 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 433 transitions. [2024-10-24 20:22:36,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-24 20:22:36,189 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:22:36,189 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:22:36,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 20:22:36,190 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:22:36,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:22:36,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1696171797, now seen corresponding path program 1 times [2024-10-24 20:22:36,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:22:36,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845775919] [2024-10-24 20:22:36,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:22:36,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:22:36,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:36,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:22:36,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:36,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:22:36,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:36,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:22:36,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:36,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 20:22:36,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:36,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 20:22:36,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:36,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 20:22:36,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:36,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 20:22:36,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:36,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 20:22:36,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:36,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-24 20:22:36,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:36,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 20:22:36,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:36,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 20:22:36,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:36,324 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-10-24 20:22:36,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:22:36,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845775919] [2024-10-24 20:22:36,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845775919] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:22:36,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [725218376] [2024-10-24 20:22:36,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:22:36,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:22:36,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:22:36,326 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:22:36,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-24 20:22:36,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:36,370 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 20:22:36,371 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:22:36,518 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-10-24 20:22:36,519 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:22:36,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [725218376] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:22:36,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:22:36,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-10-24 20:22:36,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655329367] [2024-10-24 20:22:36,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:22:36,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 20:22:36,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:22:36,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 20:22:36,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-10-24 20:22:36,520 INFO L87 Difference]: Start difference. First operand 304 states and 433 transitions. Second operand has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-24 20:22:36,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:22:36,700 INFO L93 Difference]: Finished difference Result 363 states and 504 transitions. [2024-10-24 20:22:36,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 20:22:36,700 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 86 [2024-10-24 20:22:36,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:22:36,702 INFO L225 Difference]: With dead ends: 363 [2024-10-24 20:22:36,702 INFO L226 Difference]: Without dead ends: 362 [2024-10-24 20:22:36,702 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 105 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-10-24 20:22:36,702 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 46 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:22:36,703 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 134 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:22:36,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-10-24 20:22:36,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 313. [2024-10-24 20:22:36,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 252 states have (on average 1.4206349206349207) internal successors, (358), 268 states have internal predecessors, (358), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-24 20:22:36,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 442 transitions. [2024-10-24 20:22:36,731 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 442 transitions. Word has length 86 [2024-10-24 20:22:36,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:22:36,732 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 442 transitions. [2024-10-24 20:22:36,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-24 20:22:36,732 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 442 transitions. [2024-10-24 20:22:36,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-24 20:22:36,732 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:22:36,732 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:22:36,746 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-24 20:22:36,933 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,SelfDestructingSolverStorable14 [2024-10-24 20:22:36,934 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:22:36,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:22:36,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1041718040, now seen corresponding path program 1 times [2024-10-24 20:22:36,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:22:36,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793424270] [2024-10-24 20:22:36,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:22:36,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:22:36,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:37,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:22:37,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:37,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:22:37,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:37,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:22:37,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:37,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 20:22:37,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:37,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 20:22:37,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:37,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 20:22:37,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:37,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 20:22:37,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:37,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 20:22:37,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:37,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-24 20:22:37,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:37,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 20:22:37,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:37,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 20:22:37,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:37,093 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-10-24 20:22:37,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:22:37,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793424270] [2024-10-24 20:22:37,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793424270] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:22:37,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1400274205] [2024-10-24 20:22:37,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:22:37,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:22:37,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:22:37,095 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:22:37,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-24 20:22:37,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:37,138 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 20:22:37,140 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:22:37,227 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-10-24 20:22:37,228 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:22:37,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1400274205] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:22:37,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:22:37,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-10-24 20:22:37,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130290838] [2024-10-24 20:22:37,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:22:37,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 20:22:37,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:22:37,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 20:22:37,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-24 20:22:37,229 INFO L87 Difference]: Start difference. First operand 313 states and 442 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-24 20:22:37,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:22:37,355 INFO L93 Difference]: Finished difference Result 320 states and 448 transitions. [2024-10-24 20:22:37,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 20:22:37,356 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 87 [2024-10-24 20:22:37,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:22:37,357 INFO L225 Difference]: With dead ends: 320 [2024-10-24 20:22:37,357 INFO L226 Difference]: Without dead ends: 318 [2024-10-24 20:22:37,357 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-24 20:22:37,358 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 28 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:22:37,358 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 91 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:22:37,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2024-10-24 20:22:37,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 316. [2024-10-24 20:22:37,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 255 states have (on average 1.407843137254902) internal successors, (359), 271 states have internal predecessors, (359), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-24 20:22:37,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 443 transitions. [2024-10-24 20:22:37,388 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 443 transitions. Word has length 87 [2024-10-24 20:22:37,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:22:37,388 INFO L471 AbstractCegarLoop]: Abstraction has 316 states and 443 transitions. [2024-10-24 20:22:37,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-24 20:22:37,388 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 443 transitions. [2024-10-24 20:22:37,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-24 20:22:37,389 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:22:37,389 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:22:37,404 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-24 20:22:37,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-24 20:22:37,594 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:22:37,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:22:37,595 INFO L85 PathProgramCache]: Analyzing trace with hash -363654006, now seen corresponding path program 1 times [2024-10-24 20:22:37,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:22:37,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512588959] [2024-10-24 20:22:37,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:22:37,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:22:37,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:22:37,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [682267064] [2024-10-24 20:22:37,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:22:37,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:22:37,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:22:37,621 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) [2024-10-24 20:22:37,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-24 20:22:37,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:37,666 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-24 20:22:37,668 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:22:38,113 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-10-24 20:22:38,113 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:22:38,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:22:38,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512588959] [2024-10-24 20:22:38,456 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:22:38,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [682267064] [2024-10-24 20:22:38,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [682267064] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:22:38,456 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:22:38,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-10-24 20:22:38,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826166028] [2024-10-24 20:22:38,456 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:22:38,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 20:22:38,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:22:38,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 20:22:38,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-10-24 20:22:38,458 INFO L87 Difference]: Start difference. First operand 316 states and 443 transitions. Second operand has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-10-24 20:22:38,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:22:38,891 INFO L93 Difference]: Finished difference Result 393 states and 546 transitions. [2024-10-24 20:22:38,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 20:22:38,892 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 89 [2024-10-24 20:22:38,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:22:38,893 INFO L225 Difference]: With dead ends: 393 [2024-10-24 20:22:38,893 INFO L226 Difference]: Without dead ends: 392 [2024-10-24 20:22:38,894 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-24 20:22:38,894 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 121 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 20:22:38,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 282 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 20:22:38,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-10-24 20:22:38,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 365. [2024-10-24 20:22:38,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 298 states have (on average 1.3825503355704698) internal successors, (412), 314 states have internal predecessors, (412), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-10-24 20:22:38,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 508 transitions. [2024-10-24 20:22:38,921 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 508 transitions. Word has length 89 [2024-10-24 20:22:38,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:22:38,921 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 508 transitions. [2024-10-24 20:22:38,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-10-24 20:22:38,921 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 508 transitions. [2024-10-24 20:22:38,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-10-24 20:22:38,923 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:22:38,923 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:22:38,935 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-10-24 20:22:39,123 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,SelfDestructingSolverStorable16 [2024-10-24 20:22:39,124 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:22:39,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:22:39,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1611627783, now seen corresponding path program 1 times [2024-10-24 20:22:39,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:22:39,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788812696] [2024-10-24 20:22:39,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:22:39,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:22:39,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:22:39,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [10364044] [2024-10-24 20:22:39,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:22:39,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:22:39,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:22:39,145 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) [2024-10-24 20:22:39,147 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-24 20:22:39,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:39,195 INFO L255 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-24 20:22:39,197 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:22:39,581 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-10-24 20:22:39,581 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:22:39,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:22:39,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788812696] [2024-10-24 20:22:39,861 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:22:39,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10364044] [2024-10-24 20:22:39,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10364044] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:22:39,861 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:22:39,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-10-24 20:22:39,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714034873] [2024-10-24 20:22:39,861 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:22:39,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 20:22:39,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:22:39,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 20:22:39,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-10-24 20:22:39,862 INFO L87 Difference]: Start difference. First operand 365 states and 508 transitions. Second operand has 12 states, 11 states have (on average 4.0) internal successors, (44), 11 states have internal predecessors, (44), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-10-24 20:22:40,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:22:40,203 INFO L93 Difference]: Finished difference Result 428 states and 595 transitions. [2024-10-24 20:22:40,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 20:22:40,204 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.0) internal successors, (44), 11 states have internal predecessors, (44), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 90 [2024-10-24 20:22:40,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:22:40,205 INFO L225 Difference]: With dead ends: 428 [2024-10-24 20:22:40,205 INFO L226 Difference]: Without dead ends: 427 [2024-10-24 20:22:40,206 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-10-24 20:22:40,207 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 94 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 20:22:40,207 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 304 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 20:22:40,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2024-10-24 20:22:40,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 414. [2024-10-24 20:22:40,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 341 states have (on average 1.3577712609970674) internal successors, (463), 357 states have internal predecessors, (463), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-24 20:22:40,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 571 transitions. [2024-10-24 20:22:40,233 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 571 transitions. Word has length 90 [2024-10-24 20:22:40,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:22:40,233 INFO L471 AbstractCegarLoop]: Abstraction has 414 states and 571 transitions. [2024-10-24 20:22:40,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.0) internal successors, (44), 11 states have internal predecessors, (44), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-10-24 20:22:40,233 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 571 transitions. [2024-10-24 20:22:40,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-24 20:22:40,234 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:22:40,234 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:22:40,247 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-24 20:22:40,434 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,SelfDestructingSolverStorable17 [2024-10-24 20:22:40,435 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:22:40,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:22:40,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1579146196, now seen corresponding path program 1 times [2024-10-24 20:22:40,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:22:40,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457420083] [2024-10-24 20:22:40,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:22:40,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:22:40,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:40,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:22:40,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:40,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:22:40,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:40,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:22:40,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:40,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 20:22:40,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:40,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 20:22:40,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:40,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 20:22:40,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:40,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 20:22:40,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:40,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 20:22:40,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:40,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-24 20:22:40,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:40,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 20:22:40,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:40,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 20:22:40,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:40,510 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-10-24 20:22:40,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:22:40,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457420083] [2024-10-24 20:22:40,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457420083] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:22:40,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:22:40,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 20:22:40,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175638532] [2024-10-24 20:22:40,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:22:40,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 20:22:40,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:22:40,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 20:22:40,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 20:22:40,512 INFO L87 Difference]: Start difference. First operand 414 states and 571 transitions. Second operand has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-10-24 20:22:40,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:22:40,687 INFO L93 Difference]: Finished difference Result 414 states and 571 transitions. [2024-10-24 20:22:40,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 20:22:40,688 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 91 [2024-10-24 20:22:40,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:22:40,689 INFO L225 Difference]: With dead ends: 414 [2024-10-24 20:22:40,689 INFO L226 Difference]: Without dead ends: 413 [2024-10-24 20:22:40,689 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 20:22:40,690 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 71 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:22:40,690 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 111 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:22:40,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2024-10-24 20:22:40,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 401. [2024-10-24 20:22:40,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 329 states have (on average 1.3282674772036474) internal successors, (437), 344 states have internal predecessors, (437), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-24 20:22:40,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 545 transitions. [2024-10-24 20:22:40,717 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 545 transitions. Word has length 91 [2024-10-24 20:22:40,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:22:40,717 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 545 transitions. [2024-10-24 20:22:40,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-10-24 20:22:40,717 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 545 transitions. [2024-10-24 20:22:40,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-24 20:22:40,718 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:22:40,718 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:22:40,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 20:22:40,719 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:22:40,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:22:40,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1708891735, now seen corresponding path program 1 times [2024-10-24 20:22:40,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:22:40,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130556339] [2024-10-24 20:22:40,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:22:40,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:22:40,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:22:40,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [761885006] [2024-10-24 20:22:40,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:22:40,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:22:40,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:22:40,738 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) [2024-10-24 20:22:40,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-24 20:22:40,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:40,781 INFO L255 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-10-24 20:22:40,783 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:22:41,367 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-10-24 20:22:41,367 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:22:43,053 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-10-24 20:22:43,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:22:43,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130556339] [2024-10-24 20:22:43,053 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:22:43,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [761885006] [2024-10-24 20:22:43,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [761885006] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:22:43,054 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 20:22:43,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 22 [2024-10-24 20:22:43,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097316693] [2024-10-24 20:22:43,054 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 20:22:43,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-24 20:22:43,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:22:43,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-24 20:22:43,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2024-10-24 20:22:43,055 INFO L87 Difference]: Start difference. First operand 401 states and 545 transitions. Second operand has 23 states, 22 states have (on average 3.727272727272727) internal successors, (82), 23 states have internal predecessors, (82), 8 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2024-10-24 20:22:46,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:22:46,935 INFO L93 Difference]: Finished difference Result 563 states and 763 transitions. [2024-10-24 20:22:46,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-10-24 20:22:46,935 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 3.727272727272727) internal successors, (82), 23 states have internal predecessors, (82), 8 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) Word has length 92 [2024-10-24 20:22:46,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:22:46,937 INFO L225 Difference]: With dead ends: 563 [2024-10-24 20:22:46,937 INFO L226 Difference]: Without dead ends: 443 [2024-10-24 20:22:46,938 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=566, Invalid=1786, Unknown=0, NotChecked=0, Total=2352 [2024-10-24 20:22:46,938 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 390 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 1119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-24 20:22:46,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 292 Invalid, 1119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-24 20:22:46,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-10-24 20:22:46,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 399. [2024-10-24 20:22:46,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 331 states have (on average 1.3232628398791542) internal successors, (438), 346 states have internal predecessors, (438), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-10-24 20:22:46,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 538 transitions. [2024-10-24 20:22:46,971 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 538 transitions. Word has length 92 [2024-10-24 20:22:46,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:22:46,972 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 538 transitions. [2024-10-24 20:22:46,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 3.727272727272727) internal successors, (82), 23 states have internal predecessors, (82), 8 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2024-10-24 20:22:46,972 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 538 transitions. [2024-10-24 20:22:46,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-24 20:22:46,973 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:22:46,973 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:22:46,986 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-24 20:22:47,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:22:47,176 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:22:47,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:22:47,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1294179065, now seen corresponding path program 3 times [2024-10-24 20:22:47,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:22:47,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359792758] [2024-10-24 20:22:47,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:22:47,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:22:47,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:22:47,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [51800076] [2024-10-24 20:22:47,194 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-24 20:22:47,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:22:47,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:22:47,196 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) [2024-10-24 20:22:47,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-24 20:22:47,233 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-10-24 20:22:47,233 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:22:47,234 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-24 20:22:47,236 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:22:47,952 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 26 proven. 35 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2024-10-24 20:22:47,953 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:22:48,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:22:48,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359792758] [2024-10-24 20:22:48,085 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:22:48,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51800076] [2024-10-24 20:22:48,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51800076] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:22:48,085 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:22:48,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-10-24 20:22:48,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418083263] [2024-10-24 20:22:48,086 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:22:48,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 20:22:48,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:22:48,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 20:22:48,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=197, Unknown=1, NotChecked=0, Total=240 [2024-10-24 20:22:48,087 INFO L87 Difference]: Start difference. First operand 399 states and 538 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 10 states have internal predecessors, (31), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-10-24 20:22:49,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-10-24 20:22:52,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-10-24 20:22:53,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:22:53,176 INFO L93 Difference]: Finished difference Result 430 states and 575 transitions. [2024-10-24 20:22:53,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 20:22:53,177 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 10 states have internal predecessors, (31), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 100 [2024-10-24 20:22:53,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:22:53,178 INFO L225 Difference]: With dead ends: 430 [2024-10-24 20:22:53,178 INFO L226 Difference]: Without dead ends: 426 [2024-10-24 20:22:53,179 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=130, Invalid=415, Unknown=7, NotChecked=0, Total=552 [2024-10-24 20:22:53,179 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 222 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 53 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-10-24 20:22:53,179 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 242 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 537 Invalid, 2 Unknown, 0 Unchecked, 3.0s Time] [2024-10-24 20:22:53,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2024-10-24 20:22:53,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 394. [2024-10-24 20:22:53,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 329 states have (on average 1.2887537993920972) internal successors, (424), 341 states have internal predecessors, (424), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-10-24 20:22:53,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 524 transitions. [2024-10-24 20:22:53,217 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 524 transitions. Word has length 100 [2024-10-24 20:22:53,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:22:53,218 INFO L471 AbstractCegarLoop]: Abstraction has 394 states and 524 transitions. [2024-10-24 20:22:53,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 10 states have internal predecessors, (31), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-10-24 20:22:53,218 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 524 transitions. [2024-10-24 20:22:53,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-24 20:22:53,219 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:22:53,219 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:22:53,232 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-10-24 20:22:53,420 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,SelfDestructingSolverStorable20 [2024-10-24 20:22:53,420 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:22:53,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:22:53,421 INFO L85 PathProgramCache]: Analyzing trace with hash -2086556248, now seen corresponding path program 1 times [2024-10-24 20:22:53,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:22:53,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930799567] [2024-10-24 20:22:53,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:22:53,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:22:53,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:22:53,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1944691675] [2024-10-24 20:22:53,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:22:53,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:22:53,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:22:53,440 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) [2024-10-24 20:22:53,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-24 20:22:53,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:53,485 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-24 20:22:53,486 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:22:53,780 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-10-24 20:22:53,781 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:22:54,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:22:54,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930799567] [2024-10-24 20:22:54,216 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:22:54,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1944691675] [2024-10-24 20:22:54,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1944691675] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:22:54,216 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:22:54,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-10-24 20:22:54,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129030368] [2024-10-24 20:22:54,217 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:22:54,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 20:22:54,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:22:54,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 20:22:54,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-10-24 20:22:54,218 INFO L87 Difference]: Start difference. First operand 394 states and 524 transitions. Second operand has 9 states, 8 states have (on average 5.875) internal successors, (47), 9 states have internal predecessors, (47), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-10-24 20:22:54,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:22:54,516 INFO L93 Difference]: Finished difference Result 399 states and 531 transitions. [2024-10-24 20:22:54,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 20:22:54,518 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 9 states have internal predecessors, (47), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 106 [2024-10-24 20:22:54,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:22:54,520 INFO L225 Difference]: With dead ends: 399 [2024-10-24 20:22:54,520 INFO L226 Difference]: Without dead ends: 398 [2024-10-24 20:22:54,520 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2024-10-24 20:22:54,520 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 23 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 20:22:54,520 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 310 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 20:22:54,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2024-10-24 20:22:54,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 395. [2024-10-24 20:22:54,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 330 states have (on average 1.2878787878787878) internal successors, (425), 342 states have internal predecessors, (425), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-10-24 20:22:54,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 525 transitions. [2024-10-24 20:22:54,561 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 525 transitions. Word has length 106 [2024-10-24 20:22:54,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:22:54,562 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 525 transitions. [2024-10-24 20:22:54,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 9 states have internal predecessors, (47), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-10-24 20:22:54,562 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 525 transitions. [2024-10-24 20:22:54,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-24 20:22:54,562 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:22:54,562 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:22:54,575 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-10-24 20:22:54,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:22:54,763 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:22:54,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:22:54,764 INFO L85 PathProgramCache]: Analyzing trace with hash -258734123, now seen corresponding path program 1 times [2024-10-24 20:22:54,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:22:54,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580171136] [2024-10-24 20:22:54,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:22:54,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:22:54,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:22:54,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [119624502] [2024-10-24 20:22:54,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:22:54,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:22:54,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:22:54,781 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) [2024-10-24 20:22:54,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-10-24 20:22:54,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:54,824 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-24 20:22:54,827 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:22:55,200 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 7 proven. 16 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-10-24 20:22:55,200 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:22:56,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:22:56,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580171136] [2024-10-24 20:22:56,166 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:22:56,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [119624502] [2024-10-24 20:22:56,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [119624502] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:22:56,166 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:22:56,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-10-24 20:22:56,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430557349] [2024-10-24 20:22:56,166 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:22:56,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 20:22:56,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:22:56,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 20:22:56,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2024-10-24 20:22:56,167 INFO L87 Difference]: Start difference. First operand 395 states and 525 transitions. Second operand has 13 states, 12 states have (on average 4.25) internal successors, (51), 13 states have internal predecessors, (51), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2024-10-24 20:22:56,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:22:56,629 INFO L93 Difference]: Finished difference Result 667 states and 904 transitions. [2024-10-24 20:22:56,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 20:22:56,629 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.25) internal successors, (51), 13 states have internal predecessors, (51), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) Word has length 107 [2024-10-24 20:22:56,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:22:56,631 INFO L225 Difference]: With dead ends: 667 [2024-10-24 20:22:56,631 INFO L226 Difference]: Without dead ends: 416 [2024-10-24 20:22:56,632 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=178, Invalid=524, Unknown=0, NotChecked=0, Total=702 [2024-10-24 20:22:56,632 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 94 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 20:22:56,632 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 421 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 20:22:56,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2024-10-24 20:22:56,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 410. [2024-10-24 20:22:56,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 341 states have (on average 1.3020527859237536) internal successors, (444), 353 states have internal predecessors, (444), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-24 20:22:56,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 552 transitions. [2024-10-24 20:22:56,679 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 552 transitions. Word has length 107 [2024-10-24 20:22:56,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:22:56,679 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 552 transitions. [2024-10-24 20:22:56,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.25) internal successors, (51), 13 states have internal predecessors, (51), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2024-10-24 20:22:56,680 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 552 transitions. [2024-10-24 20:22:56,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-10-24 20:22:56,680 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:22:56,681 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:22:56,695 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-10-24 20:22:56,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:22:56,881 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:22:56,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:22:56,881 INFO L85 PathProgramCache]: Analyzing trace with hash 569176906, now seen corresponding path program 1 times [2024-10-24 20:22:56,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:22:56,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804679632] [2024-10-24 20:22:56,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:22:56,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:22:56,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:57,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:22:57,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:57,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:22:57,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:57,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:22:57,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:57,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 20:22:57,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:57,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 20:22:57,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:57,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 20:22:57,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:57,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 20:22:57,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:57,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 20:22:57,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:57,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-24 20:22:57,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:57,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 20:22:57,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:57,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 20:22:57,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:57,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 20:22:57,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:57,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 20:22:57,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:57,032 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2024-10-24 20:22:57,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:22:57,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804679632] [2024-10-24 20:22:57,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804679632] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:22:57,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:22:57,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 20:22:57,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384479502] [2024-10-24 20:22:57,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:22:57,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 20:22:57,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:22:57,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 20:22:57,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 20:22:57,034 INFO L87 Difference]: Start difference. First operand 410 states and 552 transitions. Second operand has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-24 20:22:57,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:22:57,406 INFO L93 Difference]: Finished difference Result 410 states and 552 transitions. [2024-10-24 20:22:57,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 20:22:57,407 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 108 [2024-10-24 20:22:57,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:22:57,410 INFO L225 Difference]: With dead ends: 410 [2024-10-24 20:22:57,410 INFO L226 Difference]: Without dead ends: 409 [2024-10-24 20:22:57,410 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-24 20:22:57,411 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 43 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 20:22:57,411 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 141 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 20:22:57,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-10-24 20:22:57,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 409. [2024-10-24 20:22:57,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 341 states have (on average 1.2991202346041055) internal successors, (443), 352 states have internal predecessors, (443), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-24 20:22:57,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 551 transitions. [2024-10-24 20:22:57,452 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 551 transitions. Word has length 108 [2024-10-24 20:22:57,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:22:57,453 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 551 transitions. [2024-10-24 20:22:57,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-24 20:22:57,453 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 551 transitions. [2024-10-24 20:22:57,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-10-24 20:22:57,453 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:22:57,453 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:22:57,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-24 20:22:57,454 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:22:57,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:22:57,454 INFO L85 PathProgramCache]: Analyzing trace with hash -289714692, now seen corresponding path program 1 times [2024-10-24 20:22:57,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:22:57,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87386336] [2024-10-24 20:22:57,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:22:57,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:22:57,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:57,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:22:57,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:57,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:22:57,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:57,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:22:57,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:57,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 20:22:57,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:57,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 20:22:57,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:57,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 20:22:57,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:57,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 20:22:57,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:57,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 20:22:57,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:57,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-24 20:22:57,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:57,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 20:22:57,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:57,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-24 20:22:57,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:57,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 20:22:57,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:57,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 20:22:57,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:57,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 20:22:57,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:57,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 20:22:57,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:57,549 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-10-24 20:22:57,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:22:57,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87386336] [2024-10-24 20:22:57,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87386336] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:22:57,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464545073] [2024-10-24 20:22:57,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:22:57,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:22:57,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:22:57,551 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) [2024-10-24 20:22:57,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-24 20:22:57,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:57,597 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 20:22:57,598 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:22:57,641 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-10-24 20:22:57,641 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:22:57,753 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-10-24 20:22:57,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [464545073] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:22:57,753 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:22:57,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-24 20:22:57,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513469923] [2024-10-24 20:22:57,754 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:22:57,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 20:22:57,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:22:57,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 20:22:57,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-10-24 20:22:57,755 INFO L87 Difference]: Start difference. First operand 409 states and 551 transitions. Second operand has 11 states, 10 states have (on average 8.3) internal successors, (83), 11 states have internal predecessors, (83), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2024-10-24 20:22:57,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:22:57,975 INFO L93 Difference]: Finished difference Result 726 states and 961 transitions. [2024-10-24 20:22:57,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 20:22:57,975 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.3) internal successors, (83), 11 states have internal predecessors, (83), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) Word has length 110 [2024-10-24 20:22:57,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:22:57,978 INFO L225 Difference]: With dead ends: 726 [2024-10-24 20:22:57,978 INFO L226 Difference]: Without dead ends: 724 [2024-10-24 20:22:57,978 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-10-24 20:22:57,978 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 363 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 20:22:57,978 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 356 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 20:22:57,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2024-10-24 20:22:58,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 483. [2024-10-24 20:22:58,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 401 states have (on average 1.2718204488778055) internal successors, (510), 412 states have internal predecessors, (510), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-24 20:22:58,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 646 transitions. [2024-10-24 20:22:58,036 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 646 transitions. Word has length 110 [2024-10-24 20:22:58,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:22:58,038 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 646 transitions. [2024-10-24 20:22:58,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.3) internal successors, (83), 11 states have internal predecessors, (83), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2024-10-24 20:22:58,039 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 646 transitions. [2024-10-24 20:22:58,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-10-24 20:22:58,040 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:22:58,040 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:22:58,052 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-10-24 20:22:58,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-10-24 20:22:58,240 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:22:58,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:22:58,241 INFO L85 PathProgramCache]: Analyzing trace with hash 464615031, now seen corresponding path program 1 times [2024-10-24 20:22:58,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:22:58,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493270836] [2024-10-24 20:22:58,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:22:58,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:22:58,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:22:58,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1016447548] [2024-10-24 20:22:58,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:22:58,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:22:58,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:22:58,263 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:22:58,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-10-24 20:22:58,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:22:58,316 INFO L255 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-24 20:22:58,318 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:22:58,737 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 7 proven. 16 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-10-24 20:22:58,738 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:23:00,114 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-10-24 20:23:00,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:00,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493270836] [2024-10-24 20:23:00,115 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:23:00,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016447548] [2024-10-24 20:23:00,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016447548] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:23:00,115 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 20:23:00,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 19 [2024-10-24 20:23:00,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596678640] [2024-10-24 20:23:00,115 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 20:23:00,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-24 20:23:00,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:00,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-24 20:23:00,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2024-10-24 20:23:00,116 INFO L87 Difference]: Start difference. First operand 483 states and 646 transitions. Second operand has 20 states, 19 states have (on average 5.052631578947368) internal successors, (96), 20 states have internal predecessors, (96), 10 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2024-10-24 20:23:03,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:03,104 INFO L93 Difference]: Finished difference Result 528 states and 702 transitions. [2024-10-24 20:23:03,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-24 20:23:03,105 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 5.052631578947368) internal successors, (96), 20 states have internal predecessors, (96), 10 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) Word has length 109 [2024-10-24 20:23:03,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:03,106 INFO L225 Difference]: With dead ends: 528 [2024-10-24 20:23:03,106 INFO L226 Difference]: Without dead ends: 521 [2024-10-24 20:23:03,107 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 197 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=269, Invalid=787, Unknown=0, NotChecked=0, Total=1056 [2024-10-24 20:23:03,107 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 116 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:03,107 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 389 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-24 20:23:03,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2024-10-24 20:23:03,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 480. [2024-10-24 20:23:03,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 398 states have (on average 1.2613065326633166) internal successors, (502), 409 states have internal predecessors, (502), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-24 20:23:03,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 638 transitions. [2024-10-24 20:23:03,162 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 638 transitions. Word has length 109 [2024-10-24 20:23:03,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:03,162 INFO L471 AbstractCegarLoop]: Abstraction has 480 states and 638 transitions. [2024-10-24 20:23:03,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 5.052631578947368) internal successors, (96), 20 states have internal predecessors, (96), 10 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2024-10-24 20:23:03,163 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 638 transitions. [2024-10-24 20:23:03,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-24 20:23:03,163 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:03,163 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:23:03,176 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-10-24 20:23:03,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-10-24 20:23:03,364 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:23:03,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:03,364 INFO L85 PathProgramCache]: Analyzing trace with hash -2059823605, now seen corresponding path program 2 times [2024-10-24 20:23:03,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:03,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386325097] [2024-10-24 20:23:03,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:03,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:03,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:23:03,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1769851878] [2024-10-24 20:23:03,377 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 20:23:03,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:03,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:23:03,379 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:23:03,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-10-24 20:23:03,426 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 20:23:03,426 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:23:03,427 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 20:23:03,428 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:23:03,533 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-10-24 20:23:03,533 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:23:07,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:07,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386325097] [2024-10-24 20:23:07,935 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:23:07,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1769851878] [2024-10-24 20:23:07,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1769851878] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:23:07,935 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:23:07,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-10-24 20:23:07,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115393311] [2024-10-24 20:23:07,935 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:23:07,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 20:23:07,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:07,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 20:23:07,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=55, Unknown=1, NotChecked=0, Total=90 [2024-10-24 20:23:07,936 INFO L87 Difference]: Start difference. First operand 480 states and 638 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-24 20:23:08,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:08,103 INFO L93 Difference]: Finished difference Result 543 states and 729 transitions. [2024-10-24 20:23:08,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 20:23:08,103 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 112 [2024-10-24 20:23:08,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:08,105 INFO L225 Difference]: With dead ends: 543 [2024-10-24 20:23:08,105 INFO L226 Difference]: Without dead ends: 541 [2024-10-24 20:23:08,106 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=52, Invalid=79, Unknown=1, NotChecked=0, Total=132 [2024-10-24 20:23:08,106 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 74 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:08,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 202 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:23:08,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-10-24 20:23:08,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 478. [2024-10-24 20:23:08,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 398 states have (on average 1.1984924623115578) internal successors, (477), 407 states have internal predecessors, (477), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-24 20:23:08,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 613 transitions. [2024-10-24 20:23:08,153 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 613 transitions. Word has length 112 [2024-10-24 20:23:08,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:08,153 INFO L471 AbstractCegarLoop]: Abstraction has 478 states and 613 transitions. [2024-10-24 20:23:08,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-24 20:23:08,154 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 613 transitions. [2024-10-24 20:23:08,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-24 20:23:08,154 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:08,154 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:23:08,166 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-10-24 20:23:08,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-10-24 20:23:08,355 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:23:08,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:08,355 INFO L85 PathProgramCache]: Analyzing trace with hash 700203380, now seen corresponding path program 1 times [2024-10-24 20:23:08,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:08,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900362075] [2024-10-24 20:23:08,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:08,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:08,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:08,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:23:08,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:08,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:23:08,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:08,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:23:08,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:08,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 20:23:08,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:08,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 20:23:08,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:08,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 20:23:08,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:08,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 20:23:08,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:08,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 20:23:08,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:08,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-24 20:23:08,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:08,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 20:23:08,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:08,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 20:23:08,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:08,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 20:23:08,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:08,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 20:23:08,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:08,541 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2024-10-24 20:23:08,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:08,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900362075] [2024-10-24 20:23:08,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900362075] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:23:08,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069680882] [2024-10-24 20:23:08,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:08,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:08,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:23:08,543 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:23:08,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-10-24 20:23:08,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:08,586 INFO L255 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-24 20:23:08,587 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:23:08,643 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 7 proven. 17 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-10-24 20:23:08,643 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:23:08,742 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 7 proven. 17 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-10-24 20:23:08,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069680882] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:23:08,743 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:23:08,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 12 [2024-10-24 20:23:08,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334863118] [2024-10-24 20:23:08,743 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:23:08,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 20:23:08,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:08,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 20:23:08,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-24 20:23:08,745 INFO L87 Difference]: Start difference. First operand 478 states and 613 transitions. Second operand has 12 states, 12 states have (on average 9.333333333333334) internal successors, (112), 12 states have internal predecessors, (112), 7 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) [2024-10-24 20:23:09,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:09,439 INFO L93 Difference]: Finished difference Result 842 states and 1103 transitions. [2024-10-24 20:23:09,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 20:23:09,440 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.333333333333334) internal successors, (112), 12 states have internal predecessors, (112), 7 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) Word has length 112 [2024-10-24 20:23:09,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:09,442 INFO L225 Difference]: With dead ends: 842 [2024-10-24 20:23:09,442 INFO L226 Difference]: Without dead ends: 707 [2024-10-24 20:23:09,442 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2024-10-24 20:23:09,442 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 168 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:09,442 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 535 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 20:23:09,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2024-10-24 20:23:09,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 473. [2024-10-24 20:23:09,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 393 states have (on average 1.2264631043256997) internal successors, (482), 402 states have internal predecessors, (482), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-24 20:23:09,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 618 transitions. [2024-10-24 20:23:09,494 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 618 transitions. Word has length 112 [2024-10-24 20:23:09,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:09,495 INFO L471 AbstractCegarLoop]: Abstraction has 473 states and 618 transitions. [2024-10-24 20:23:09,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.333333333333334) internal successors, (112), 12 states have internal predecessors, (112), 7 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) [2024-10-24 20:23:09,495 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 618 transitions. [2024-10-24 20:23:09,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-10-24 20:23:09,495 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:09,495 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:23:09,508 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-10-24 20:23:09,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:09,696 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:23:09,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:09,696 INFO L85 PathProgramCache]: Analyzing trace with hash 569977766, now seen corresponding path program 2 times [2024-10-24 20:23:09,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:09,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538975322] [2024-10-24 20:23:09,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:09,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:09,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:23:09,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [879872924] [2024-10-24 20:23:09,711 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 20:23:09,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:09,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:23:09,713 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:23:09,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-10-24 20:23:09,789 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 20:23:09,789 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:23:09,790 INFO L255 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-24 20:23:09,792 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:23:10,172 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 3 proven. 31 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2024-10-24 20:23:10,172 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:23:10,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:10,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538975322] [2024-10-24 20:23:10,362 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:23:10,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879872924] [2024-10-24 20:23:10,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [879872924] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:23:10,362 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:23:10,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-10-24 20:23:10,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227805023] [2024-10-24 20:23:10,362 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:23:10,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 20:23:10,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:10,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 20:23:10,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2024-10-24 20:23:10,363 INFO L87 Difference]: Start difference. First operand 473 states and 618 transitions. Second operand has 14 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-10-24 20:23:10,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:10,665 INFO L93 Difference]: Finished difference Result 511 states and 667 transitions. [2024-10-24 20:23:10,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 20:23:10,665 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 113 [2024-10-24 20:23:10,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:10,667 INFO L225 Difference]: With dead ends: 511 [2024-10-24 20:23:10,667 INFO L226 Difference]: Without dead ends: 510 [2024-10-24 20:23:10,667 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2024-10-24 20:23:10,667 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 97 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:10,668 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 236 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 20:23:10,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2024-10-24 20:23:10,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 498. [2024-10-24 20:23:10,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 414 states have (on average 1.2198067632850242) internal successors, (505), 423 states have internal predecessors, (505), 72 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-10-24 20:23:10,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 649 transitions. [2024-10-24 20:23:10,719 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 649 transitions. Word has length 113 [2024-10-24 20:23:10,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:10,719 INFO L471 AbstractCegarLoop]: Abstraction has 498 states and 649 transitions. [2024-10-24 20:23:10,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-10-24 20:23:10,719 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 649 transitions. [2024-10-24 20:23:10,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-24 20:23:10,720 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:10,722 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1] [2024-10-24 20:23:10,735 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-10-24 20:23:10,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-10-24 20:23:10,923 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:23:10,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:10,923 INFO L85 PathProgramCache]: Analyzing trace with hash -570197465, now seen corresponding path program 3 times [2024-10-24 20:23:10,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:10,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474585472] [2024-10-24 20:23:10,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:10,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:10,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:23:10,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1749695037] [2024-10-24 20:23:10,950 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-24 20:23:10,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:10,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:23:10,951 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:23:10,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-10-24 20:23:10,990 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-24 20:23:10,991 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:23:10,995 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-10-24 20:23:10,996 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:23:43,629 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 64 proven. 3 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2024-10-24 20:23:43,629 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:23:45,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:45,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474585472] [2024-10-24 20:23:45,285 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:23:45,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1749695037] [2024-10-24 20:23:45,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1749695037] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:23:45,285 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:23:45,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-10-24 20:23:45,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873406898] [2024-10-24 20:23:45,285 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:23:45,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 20:23:45,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:45,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 20:23:45,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2024-10-24 20:23:45,286 INFO L87 Difference]: Start difference. First operand 498 states and 649 transitions. Second operand has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 states have internal predecessors, (47), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-24 20:23:49,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-24 20:23:53,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-24 20:23:57,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-24 20:24:01,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-24 20:24:06,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:06,661 INFO L93 Difference]: Finished difference Result 504 states and 654 transitions. [2024-10-24 20:24:06,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 20:24:06,662 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 states have internal predecessors, (47), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) Word has length 136 [2024-10-24 20:24:06,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:06,662 INFO L225 Difference]: With dead ends: 504 [2024-10-24 20:24:06,662 INFO L226 Difference]: Without dead ends: 116 [2024-10-24 20:24:06,663 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 17.6s TimeCoverageRelationStatistics Valid=152, Invalid=400, Unknown=0, NotChecked=0, Total=552 [2024-10-24 20:24:06,663 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 26 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 27 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.2s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:06,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 99 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 155 Invalid, 4 Unknown, 0 Unchecked, 17.2s Time] [2024-10-24 20:24:06,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-10-24 20:24:06,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2024-10-24 20:24:06,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 81 states have (on average 1.0123456790123457) internal successors, (82), 81 states have internal predecessors, (82), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-10-24 20:24:06,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 142 transitions. [2024-10-24 20:24:06,683 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 142 transitions. Word has length 136 [2024-10-24 20:24:06,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:06,683 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 142 transitions. [2024-10-24 20:24:06,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 states have internal predecessors, (47), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-24 20:24:06,684 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 142 transitions. [2024-10-24 20:24:06,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-10-24 20:24:06,684 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:06,684 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:24:06,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-10-24 20:24:06,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:06,885 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:24:06,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:06,885 INFO L85 PathProgramCache]: Analyzing trace with hash -34239269, now seen corresponding path program 2 times [2024-10-24 20:24:06,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:06,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915046257] [2024-10-24 20:24:06,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:06,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:06,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:07,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:24:07,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:07,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:24:07,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:07,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:24:07,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:07,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 20:24:07,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:07,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 20:24:07,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:07,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 20:24:07,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:07,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 20:24:07,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:07,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 20:24:07,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:07,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-24 20:24:07,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:07,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 20:24:07,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:07,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-24 20:24:07,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:07,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 20:24:07,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:07,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 20:24:07,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:07,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 20:24:07,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:07,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 20:24:07,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:07,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 20:24:07,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:07,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 20:24:07,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:07,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 20:24:07,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:07,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 20:24:07,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:07,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 20:24:07,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:07,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-24 20:24:07,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:07,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-24 20:24:07,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:07,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-10-24 20:24:07,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:07,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-24 20:24:07,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:07,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 20:24:07,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:07,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-10-24 20:24:07,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:07,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-10-24 20:24:07,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:07,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-10-24 20:24:07,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:07,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-10-24 20:24:07,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:07,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-10-24 20:24:07,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:07,108 INFO L134 CoverageAnalysis]: Checked inductivity of 1812 backedges. 0 proven. 396 refuted. 0 times theorem prover too weak. 1416 trivial. 0 not checked. [2024-10-24 20:24:07,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:07,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915046257] [2024-10-24 20:24:07,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915046257] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:07,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461640338] [2024-10-24 20:24:07,109 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 20:24:07,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:07,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:07,111 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:24:07,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-10-24 20:24:07,174 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 20:24:07,175 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:24:07,176 INFO L255 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-24 20:24:07,178 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:07,280 INFO L134 CoverageAnalysis]: Checked inductivity of 1812 backedges. 0 proven. 396 refuted. 0 times theorem prover too weak. 1416 trivial. 0 not checked. [2024-10-24 20:24:07,280 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:24:07,552 INFO L134 CoverageAnalysis]: Checked inductivity of 1812 backedges. 0 proven. 396 refuted. 0 times theorem prover too weak. 1416 trivial. 0 not checked. [2024-10-24 20:24:07,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [461640338] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:24:07,552 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:24:07,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-10-24 20:24:07,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791736271] [2024-10-24 20:24:07,552 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:24:07,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-24 20:24:07,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:07,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-24 20:24:07,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-10-24 20:24:07,554 INFO L87 Difference]: Start difference. First operand 114 states and 142 transitions. Second operand has 21 states, 20 states have (on average 8.15) internal successors, (163), 21 states have internal predecessors, (163), 20 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 20 states have call predecessors, (60), 20 states have call successors, (60) [2024-10-24 20:24:07,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:07,752 INFO L93 Difference]: Finished difference Result 225 states and 292 transitions. [2024-10-24 20:24:07,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-24 20:24:07,752 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 8.15) internal successors, (163), 21 states have internal predecessors, (163), 20 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 20 states have call predecessors, (60), 20 states have call successors, (60) Word has length 225 [2024-10-24 20:24:07,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:07,753 INFO L225 Difference]: With dead ends: 225 [2024-10-24 20:24:07,754 INFO L226 Difference]: Without dead ends: 224 [2024-10-24 20:24:07,754 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 499 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-10-24 20:24:07,754 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:07,754 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 164 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:24:07,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states.