./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/geo1-u2_valuebound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 61a67961 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/geo1-u2_valuebound20.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 56ae0381e0fc321a4bef875cc97d6a437c7ca54ffeb3bb010be2e47fa76c5a5f --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 20:48:41,632 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 20:48:41,691 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-14 20:48:41,695 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 20:48:41,696 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 20:48:41,721 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 20:48:41,722 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 20:48:41,722 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 20:48:41,723 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 20:48:41,723 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 20:48:41,723 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 20:48:41,724 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 20:48:41,724 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 20:48:41,725 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 20:48:41,725 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 20:48:41,726 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 20:48:41,726 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 20:48:41,726 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 20:48:41,726 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 20:48:41,726 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 20:48:41,728 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 20:48:41,729 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 20:48:41,729 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 20:48:41,729 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 20:48:41,729 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 20:48:41,729 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-14 20:48:41,730 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 20:48:41,730 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 20:48:41,730 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 20:48:41,730 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 20:48:41,730 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 20:48:41,731 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 20:48:41,731 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 20:48:41,731 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 20:48:41,732 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 20:48:41,732 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 20:48:41,732 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 20:48:41,732 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 20:48:41,732 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 20:48:41,733 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 20:48:41,733 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 20:48:41,733 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 20:48:41,733 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 20:48:41,733 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 20:48:41,733 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 56ae0381e0fc321a4bef875cc97d6a437c7ca54ffeb3bb010be2e47fa76c5a5f [2024-10-14 20:48:41,919 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 20:48:41,938 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 20:48:41,940 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 20:48:41,941 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 20:48:41,941 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 20:48:41,942 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo1-u2_valuebound20.c [2024-10-14 20:48:43,216 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 20:48:43,339 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 20:48:43,340 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo1-u2_valuebound20.c [2024-10-14 20:48:43,344 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1387cf593/3e7b142345b848028a3945d20e94e348/FLAG30464198a [2024-10-14 20:48:43,762 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1387cf593/3e7b142345b848028a3945d20e94e348 [2024-10-14 20:48:43,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 20:48:43,765 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 20:48:43,766 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 20:48:43,766 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 20:48:43,772 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 20:48:43,772 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:48:43" (1/1) ... [2024-10-14 20:48:43,773 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d3b1679 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:48:43, skipping insertion in model container [2024-10-14 20:48:43,773 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:48:43" (1/1) ... [2024-10-14 20:48:43,787 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 20:48:43,906 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 20:48:43,913 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 20:48:43,927 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 20:48:43,938 INFO L204 MainTranslator]: Completed translation [2024-10-14 20:48:43,941 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:48:43 WrapperNode [2024-10-14 20:48:43,943 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 20:48:43,944 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 20:48:43,944 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 20:48:43,944 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 20:48:43,949 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:48:43" (1/1) ... [2024-10-14 20:48:43,954 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:48:43" (1/1) ... [2024-10-14 20:48:43,970 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 67 [2024-10-14 20:48:43,973 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 20:48:43,976 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 20:48:43,977 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 20:48:43,977 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 20:48:43,984 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:48:43" (1/1) ... [2024-10-14 20:48:43,985 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:48:43" (1/1) ... [2024-10-14 20:48:43,986 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:48:43" (1/1) ... [2024-10-14 20:48:43,995 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]. [2024-10-14 20:48:43,995 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:48:43" (1/1) ... [2024-10-14 20:48:43,995 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:48:43" (1/1) ... [2024-10-14 20:48:43,998 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:48:43" (1/1) ... [2024-10-14 20:48:44,000 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:48:43" (1/1) ... [2024-10-14 20:48:44,001 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:48:43" (1/1) ... [2024-10-14 20:48:44,001 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:48:43" (1/1) ... [2024-10-14 20:48:44,003 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 20:48:44,003 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 20:48:44,003 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 20:48:44,004 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 20:48:44,004 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:48:43" (1/1) ... [2024-10-14 20:48:44,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 20:48:44,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:48:44,026 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) [2024-10-14 20:48:44,029 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 [2024-10-14 20:48:44,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 20:48:44,062 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 20:48:44,063 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 20:48:44,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 20:48:44,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 20:48:44,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 20:48:44,063 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-14 20:48:44,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-14 20:48:44,112 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 20:48:44,115 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 20:48:44,328 INFO L? ?]: Removed 52 outVars from TransFormulas that were not future-live. [2024-10-14 20:48:44,329 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 20:48:44,349 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 20:48:44,349 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 20:48:44,350 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:48:44 BoogieIcfgContainer [2024-10-14 20:48:44,350 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 20:48:44,353 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 20:48:44,354 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 20:48:44,356 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 20:48:44,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:48:43" (1/3) ... [2024-10-14 20:48:44,357 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb9df3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:48:44, skipping insertion in model container [2024-10-14 20:48:44,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:48:43" (2/3) ... [2024-10-14 20:48:44,358 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb9df3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:48:44, skipping insertion in model container [2024-10-14 20:48:44,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:48:44" (3/3) ... [2024-10-14 20:48:44,359 INFO L112 eAbstractionObserver]: Analyzing ICFG geo1-u2_valuebound20.c [2024-10-14 20:48:44,371 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 20:48:44,371 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2024-10-14 20:48:44,416 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 20:48:44,421 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;@3fd39532, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 20:48:44,422 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-10-14 20:48:44,426 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 34 states have (on average 1.7941176470588236) internal successors, (61), 56 states have internal predecessors, (61), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:48:44,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-14 20:48:44,432 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:48:44,433 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:48:44,433 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-14 20:48:44,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:48:44,438 INFO L85 PathProgramCache]: Analyzing trace with hash 374099024, now seen corresponding path program 1 times [2024-10-14 20:48:44,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:48:44,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285588276] [2024-10-14 20:48:44,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:48:44,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:48:44,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:48:44,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:48:44,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:48:44,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 20:48:44,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:48:44,578 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:48:44,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:48:44,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285588276] [2024-10-14 20:48:44,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285588276] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:48:44,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:48:44,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 20:48:44,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714268655] [2024-10-14 20:48:44,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:48:44,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 20:48:44,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:48:44,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 20:48:44,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 20:48:44,608 INFO L87 Difference]: Start difference. First operand has 63 states, 34 states have (on average 1.7941176470588236) internal successors, (61), 56 states have internal predecessors, (61), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:48:44,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:48:44,630 INFO L93 Difference]: Finished difference Result 124 states and 139 transitions. [2024-10-14 20:48:44,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 20:48:44,632 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 15 [2024-10-14 20:48:44,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:48:44,637 INFO L225 Difference]: With dead ends: 124 [2024-10-14 20:48:44,637 INFO L226 Difference]: Without dead ends: 60 [2024-10-14 20:48:44,639 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 20:48:44,641 INFO L432 NwaCegarLoop]: 63 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, 63 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 [2024-10-14 20:48:44,642 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:48:44,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-10-14 20:48:44,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-10-14 20:48:44,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 33 states have (on average 1.6666666666666667) internal successors, (55), 54 states have internal predecessors, (55), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 20:48:44,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions. [2024-10-14 20:48:44,667 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 15 [2024-10-14 20:48:44,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:48:44,667 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions. [2024-10-14 20:48:44,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:48:44,668 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions. [2024-10-14 20:48:44,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-14 20:48:44,668 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:48:44,669 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:48:44,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 20:48:44,669 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-14 20:48:44,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:48:44,669 INFO L85 PathProgramCache]: Analyzing trace with hash 689521483, now seen corresponding path program 1 times [2024-10-14 20:48:44,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:48:44,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17371958] [2024-10-14 20:48:44,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:48:44,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:48:44,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:48:44,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1793853624] [2024-10-14 20:48:44,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:48:44,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:48:44,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:48:44,695 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) [2024-10-14 20:48:44,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 20:48:44,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:48:44,733 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 20:48:44,736 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:48:44,759 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:48:44,760 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:48:44,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:48:44,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17371958] [2024-10-14 20:48:44,761 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:48:44,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793853624] [2024-10-14 20:48:44,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1793853624] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:48:44,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:48:44,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 20:48:44,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466631933] [2024-10-14 20:48:44,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:48:44,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 20:48:44,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:48:44,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 20:48:44,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:48:44,765 INFO L87 Difference]: Start difference. First operand 60 states and 61 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:48:44,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:48:44,885 INFO L93 Difference]: Finished difference Result 91 states and 98 transitions. [2024-10-14 20:48:44,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 20:48:44,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2024-10-14 20:48:44,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:48:44,886 INFO L225 Difference]: With dead ends: 91 [2024-10-14 20:48:44,886 INFO L226 Difference]: Without dead ends: 81 [2024-10-14 20:48:44,886 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:48:44,887 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 18 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:48:44,887 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 66 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:48:44,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-10-14 20:48:44,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 79. [2024-10-14 20:48:44,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 51 states have (on average 1.5686274509803921) internal successors, (80), 72 states have internal predecessors, (80), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:48:44,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 88 transitions. [2024-10-14 20:48:44,896 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 88 transitions. Word has length 15 [2024-10-14 20:48:44,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:48:44,898 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 88 transitions. [2024-10-14 20:48:44,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:48:44,898 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 88 transitions. [2024-10-14 20:48:44,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-14 20:48:44,900 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:48:44,900 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:48:44,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-14 20:48:45,100 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 [2024-10-14 20:48:45,101 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-14 20:48:45,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:48:45,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1460162033, now seen corresponding path program 1 times [2024-10-14 20:48:45,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:48:45,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952818347] [2024-10-14 20:48:45,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:48:45,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:48:45,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:48:45,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [738229864] [2024-10-14 20:48:45,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:48:45,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:48:45,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:48:45,125 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) [2024-10-14 20:48:45,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 20:48:45,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:48:45,157 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 20:48:45,158 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:48:45,224 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:48:45,226 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:48:45,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:48:45,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952818347] [2024-10-14 20:48:45,226 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:48:45,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [738229864] [2024-10-14 20:48:45,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [738229864] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:48:45,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:48:45,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 20:48:45,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960033560] [2024-10-14 20:48:45,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:48:45,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 20:48:45,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:48:45,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 20:48:45,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:48:45,230 INFO L87 Difference]: Start difference. First operand 79 states and 88 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:48:45,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:48:45,313 INFO L93 Difference]: Finished difference Result 83 states and 88 transitions. [2024-10-14 20:48:45,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 20:48:45,313 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2024-10-14 20:48:45,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:48:45,314 INFO L225 Difference]: With dead ends: 83 [2024-10-14 20:48:45,314 INFO L226 Difference]: Without dead ends: 81 [2024-10-14 20:48:45,315 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:48:45,315 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 14 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:48:45,316 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 64 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:48:45,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-10-14 20:48:45,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 79. [2024-10-14 20:48:45,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 51 states have (on average 1.5294117647058822) internal successors, (78), 72 states have internal predecessors, (78), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:48:45,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 86 transitions. [2024-10-14 20:48:45,322 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 86 transitions. Word has length 19 [2024-10-14 20:48:45,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:48:45,323 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 86 transitions. [2024-10-14 20:48:45,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:48:45,323 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 86 transitions. [2024-10-14 20:48:45,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-10-14 20:48:45,323 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:48:45,323 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:48:45,335 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 20:48:45,524 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,SelfDestructingSolverStorable2 [2024-10-14 20:48:45,524 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-14 20:48:45,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:48:45,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1979617290, now seen corresponding path program 1 times [2024-10-14 20:48:45,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:48:45,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727424162] [2024-10-14 20:48:45,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:48:45,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:48:45,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:48:45,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:48:45,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:48:45,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 20:48:45,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:48:45,675 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:48:45,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:48:45,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727424162] [2024-10-14 20:48:45,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727424162] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:48:45,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:48:45,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:48:45,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514747385] [2024-10-14 20:48:45,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:48:45,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:48:45,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:48:45,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:48:45,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:48:45,676 INFO L87 Difference]: Start difference. First operand 79 states and 86 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:48:45,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:48:45,760 INFO L93 Difference]: Finished difference Result 83 states and 86 transitions. [2024-10-14 20:48:45,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 20:48:45,761 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2024-10-14 20:48:45,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:48:45,761 INFO L225 Difference]: With dead ends: 83 [2024-10-14 20:48:45,762 INFO L226 Difference]: Without dead ends: 81 [2024-10-14 20:48:45,762 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:48:45,762 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 30 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:48:45,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 66 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:48:45,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-10-14 20:48:45,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 79. [2024-10-14 20:48:45,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 51 states have (on average 1.4901960784313726) internal successors, (76), 72 states have internal predecessors, (76), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:48:45,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2024-10-14 20:48:45,771 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 20 [2024-10-14 20:48:45,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:48:45,771 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 84 transitions. [2024-10-14 20:48:45,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:48:45,774 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 84 transitions. [2024-10-14 20:48:45,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-10-14 20:48:45,775 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:48:45,775 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:48:45,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 20:48:45,775 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-14 20:48:45,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:48:45,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1741584869, now seen corresponding path program 1 times [2024-10-14 20:48:45,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:48:45,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856682912] [2024-10-14 20:48:45,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:48:45,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:48:45,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:48:45,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:48:45,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:48:45,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 20:48:45,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:48:45,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-14 20:48:45,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:48:45,850 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:48:45,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:48:45,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856682912] [2024-10-14 20:48:45,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856682912] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:48:45,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:48:45,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 20:48:45,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727258504] [2024-10-14 20:48:45,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:48:45,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 20:48:45,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:48:45,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 20:48:45,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:48:45,855 INFO L87 Difference]: Start difference. First operand 79 states and 84 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:48:45,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:48:45,874 INFO L93 Difference]: Finished difference Result 81 states and 84 transitions. [2024-10-14 20:48:45,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 20:48:45,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 29 [2024-10-14 20:48:45,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:48:45,875 INFO L225 Difference]: With dead ends: 81 [2024-10-14 20:48:45,875 INFO L226 Difference]: Without dead ends: 79 [2024-10-14 20:48:45,875 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:48:45,876 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 1 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:48:45,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 109 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:48:45,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-10-14 20:48:45,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2024-10-14 20:48:45,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 51 states have (on average 1.4509803921568627) internal successors, (74), 72 states have internal predecessors, (74), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:48:45,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 82 transitions. [2024-10-14 20:48:45,881 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 82 transitions. Word has length 29 [2024-10-14 20:48:45,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:48:45,881 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 82 transitions. [2024-10-14 20:48:45,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:48:45,881 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 82 transitions. [2024-10-14 20:48:45,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-14 20:48:45,882 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:48:45,882 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:48:45,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 20:48:45,882 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-14 20:48:45,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:48:45,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1374224772, now seen corresponding path program 1 times [2024-10-14 20:48:45,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:48:45,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553481426] [2024-10-14 20:48:45,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:48:45,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:48:45,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:48:45,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:48:45,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:48:45,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 20:48:45,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:48:45,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-14 20:48:45,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:48:45,976 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:48:45,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:48:45,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553481426] [2024-10-14 20:48:45,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553481426] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:48:45,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:48:45,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:48:45,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777034941] [2024-10-14 20:48:45,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:48:45,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:48:45,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:48:45,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:48:45,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:48:45,978 INFO L87 Difference]: Start difference. First operand 79 states and 82 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 20:48:46,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:48:46,573 INFO L93 Difference]: Finished difference Result 79 states and 82 transitions. [2024-10-14 20:48:46,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 20:48:46,573 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2024-10-14 20:48:46,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:48:46,575 INFO L225 Difference]: With dead ends: 79 [2024-10-14 20:48:46,575 INFO L226 Difference]: Without dead ends: 78 [2024-10-14 20:48:46,575 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:48:46,577 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 36 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 20:48:46,577 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 82 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 20:48:46,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-10-14 20:48:46,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-10-14 20:48:46,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 51 states have (on average 1.4313725490196079) internal successors, (73), 71 states have internal predecessors, (73), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:48:46,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 81 transitions. [2024-10-14 20:48:46,586 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 81 transitions. Word has length 31 [2024-10-14 20:48:46,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:48:46,587 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 81 transitions. [2024-10-14 20:48:46,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 20:48:46,587 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 81 transitions. [2024-10-14 20:48:46,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-10-14 20:48:46,587 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:48:46,588 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:48:46,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 20:48:46,588 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-14 20:48:46,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:48:46,589 INFO L85 PathProgramCache]: Analyzing trace with hash 348705122, now seen corresponding path program 1 times [2024-10-14 20:48:46,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:48:46,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877148994] [2024-10-14 20:48:46,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:48:46,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:48:46,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:48:46,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [45403109] [2024-10-14 20:48:46,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:48:46,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:48:46,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:48:46,614 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) [2024-10-14 20:48:46,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 20:48:46,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:48:46,666 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 20:48:46,668 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:48:46,750 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:48:46,751 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:48:46,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:48:46,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877148994] [2024-10-14 20:48:46,752 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:48:46,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45403109] [2024-10-14 20:48:46,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [45403109] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:48:46,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:48:46,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:48:46,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071056057] [2024-10-14 20:48:46,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:48:46,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:48:46,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:48:46,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:48:46,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:48:46,754 INFO L87 Difference]: Start difference. First operand 78 states and 81 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:48:46,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:48:46,848 INFO L93 Difference]: Finished difference Result 83 states and 87 transitions. [2024-10-14 20:48:46,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:48:46,849 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 32 [2024-10-14 20:48:46,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:48:46,851 INFO L225 Difference]: With dead ends: 83 [2024-10-14 20:48:46,851 INFO L226 Difference]: Without dead ends: 82 [2024-10-14 20:48:46,851 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:48:46,852 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 14 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:48:46,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 64 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:48:46,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-10-14 20:48:46,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 80. [2024-10-14 20:48:46,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 53 states have (on average 1.4150943396226414) internal successors, (75), 73 states have internal predecessors, (75), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:48:46,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 83 transitions. [2024-10-14 20:48:46,862 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 83 transitions. Word has length 32 [2024-10-14 20:48:46,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:48:46,863 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 83 transitions. [2024-10-14 20:48:46,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:48:46,863 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 83 transitions. [2024-10-14 20:48:46,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-10-14 20:48:46,864 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:48:46,864 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:48:46,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-14 20:48:47,064 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 [2024-10-14 20:48:47,065 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-14 20:48:47,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:48:47,065 INFO L85 PathProgramCache]: Analyzing trace with hash -2075043010, now seen corresponding path program 1 times [2024-10-14 20:48:47,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:48:47,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257491297] [2024-10-14 20:48:47,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:48:47,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:48:47,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:48:47,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2012220317] [2024-10-14 20:48:47,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:48:47,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:48:47,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:48:47,084 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) [2024-10-14 20:48:47,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 20:48:47,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:48:47,117 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 20:48:47,118 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:48:47,235 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:48:47,235 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:48:47,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:48:47,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257491297] [2024-10-14 20:48:47,235 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:48:47,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2012220317] [2024-10-14 20:48:47,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2012220317] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:48:47,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:48:47,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:48:47,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056137953] [2024-10-14 20:48:47,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:48:47,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:48:47,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:48:47,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:48:47,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:48:47,237 INFO L87 Difference]: Start difference. First operand 80 states and 83 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:48:47,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:48:47,386 INFO L93 Difference]: Finished difference Result 85 states and 90 transitions. [2024-10-14 20:48:47,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:48:47,387 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33 [2024-10-14 20:48:47,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:48:47,387 INFO L225 Difference]: With dead ends: 85 [2024-10-14 20:48:47,387 INFO L226 Difference]: Without dead ends: 84 [2024-10-14 20:48:47,388 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:48:47,388 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 8 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:48:47,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 76 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:48:47,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-10-14 20:48:47,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 81. [2024-10-14 20:48:47,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 54 states have (on average 1.4074074074074074) internal successors, (76), 74 states have internal predecessors, (76), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:48:47,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 84 transitions. [2024-10-14 20:48:47,399 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 84 transitions. Word has length 33 [2024-10-14 20:48:47,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:48:47,399 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 84 transitions. [2024-10-14 20:48:47,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:48:47,399 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 84 transitions. [2024-10-14 20:48:47,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-14 20:48:47,400 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:48:47,400 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:48:47,411 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-14 20:48:47,600 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 [2024-10-14 20:48:47,600 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-14 20:48:47,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:48:47,601 INFO L85 PathProgramCache]: Analyzing trace with hash 98176228, now seen corresponding path program 1 times [2024-10-14 20:48:47,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:48:47,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461902434] [2024-10-14 20:48:47,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:48:47,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:48:47,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:48:47,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:48:47,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:48:47,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 20:48:47,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:48:47,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-14 20:48:47,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:48:47,663 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:48:47,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:48:47,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461902434] [2024-10-14 20:48:47,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461902434] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:48:47,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:48:47,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:48:47,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456808860] [2024-10-14 20:48:47,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:48:47,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:48:47,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:48:47,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:48:47,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:48:47,667 INFO L87 Difference]: Start difference. First operand 81 states and 84 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:48:47,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:48:47,851 INFO L93 Difference]: Finished difference Result 81 states and 84 transitions. [2024-10-14 20:48:47,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:48:47,851 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 34 [2024-10-14 20:48:47,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:48:47,852 INFO L225 Difference]: With dead ends: 81 [2024-10-14 20:48:47,852 INFO L226 Difference]: Without dead ends: 73 [2024-10-14 20:48:47,853 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:48:47,853 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 47 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:48:47,853 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 65 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:48:47,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-10-14 20:48:47,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2024-10-14 20:48:47,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 48 states have (on average 1.3958333333333333) internal successors, (67), 66 states have internal predecessors, (67), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:48:47,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 75 transitions. [2024-10-14 20:48:47,861 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 75 transitions. Word has length 34 [2024-10-14 20:48:47,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:48:47,862 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 75 transitions. [2024-10-14 20:48:47,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:48:47,862 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 75 transitions. [2024-10-14 20:48:47,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-10-14 20:48:47,863 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:48:47,863 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:48:47,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 20:48:47,863 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-14 20:48:47,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:48:47,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1539691752, now seen corresponding path program 1 times [2024-10-14 20:48:47,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:48:47,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128931951] [2024-10-14 20:48:47,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:48:47,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:48:47,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:48:47,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [580941090] [2024-10-14 20:48:47,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:48:47,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:48:47,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:48:47,884 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) [2024-10-14 20:48:47,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 20:48:47,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:48:47,923 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 20:48:47,924 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:48:48,036 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 20:48:48,036 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:48:48,158 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 20:48:48,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:48:48,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128931951] [2024-10-14 20:48:48,158 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:48:48,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580941090] [2024-10-14 20:48:48,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [580941090] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:48:48,159 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 20:48:48,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-10-14 20:48:48,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266986136] [2024-10-14 20:48:48,159 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 20:48:48,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 20:48:48,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:48:48,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 20:48:48,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:48:48,160 INFO L87 Difference]: Start difference. First operand 73 states and 75 transitions. Second operand has 9 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-14 20:48:48,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:48:48,502 INFO L93 Difference]: Finished difference Result 99 states and 118 transitions. [2024-10-14 20:48:48,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 20:48:48,503 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 36 [2024-10-14 20:48:48,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:48:48,503 INFO L225 Difference]: With dead ends: 99 [2024-10-14 20:48:48,503 INFO L226 Difference]: Without dead ends: 98 [2024-10-14 20:48:48,503 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:48:48,504 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 49 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:48:48,504 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 118 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 20:48:48,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-10-14 20:48:48,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 94. [2024-10-14 20:48:48,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 68 states have (on average 1.5) internal successors, (102), 86 states have internal predecessors, (102), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 20:48:48,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 112 transitions. [2024-10-14 20:48:48,509 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 112 transitions. Word has length 36 [2024-10-14 20:48:48,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:48:48,509 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 112 transitions. [2024-10-14 20:48:48,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-14 20:48:48,509 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 112 transitions. [2024-10-14 20:48:48,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-14 20:48:48,510 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:48:48,510 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:48:48,522 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-14 20:48:48,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-14 20:48:48,714 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-14 20:48:48,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:48:48,714 INFO L85 PathProgramCache]: Analyzing trace with hash -2119942006, now seen corresponding path program 1 times [2024-10-14 20:48:48,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:48:48,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487419343] [2024-10-14 20:48:48,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:48:48,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:48:48,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:48:48,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1821765876] [2024-10-14 20:48:48,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:48:48,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:48:48,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:48:48,732 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) [2024-10-14 20:48:48,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-14 20:48:48,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:48:48,764 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 20:48:48,766 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:48:48,800 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:48:48,800 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:48:48,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:48:48,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487419343] [2024-10-14 20:48:48,931 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:48:48,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821765876] [2024-10-14 20:48:48,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821765876] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:48:48,931 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:48:48,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2024-10-14 20:48:48,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028329423] [2024-10-14 20:48:48,931 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:48:48,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:48:48,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:48:48,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:48:48,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 20:48:48,932 INFO L87 Difference]: Start difference. First operand 94 states and 112 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:48:49,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:48:49,120 INFO L93 Difference]: Finished difference Result 94 states and 112 transitions. [2024-10-14 20:48:49,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:48:49,120 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2024-10-14 20:48:49,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:48:49,121 INFO L225 Difference]: With dead ends: 94 [2024-10-14 20:48:49,121 INFO L226 Difference]: Without dead ends: 90 [2024-10-14 20:48:49,121 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 20:48:49,121 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 18 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:48:49,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 68 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:48:49,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-10-14 20:48:49,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-10-14 20:48:49,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 68 states have (on average 1.3970588235294117) internal successors, (95), 82 states have internal predecessors, (95), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 20:48:49,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 105 transitions. [2024-10-14 20:48:49,126 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 105 transitions. Word has length 38 [2024-10-14 20:48:49,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:48:49,126 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 105 transitions. [2024-10-14 20:48:49,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:48:49,127 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 105 transitions. [2024-10-14 20:48:49,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-14 20:48:49,127 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:48:49,127 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:48:49,139 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-14 20:48:49,328 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 [2024-10-14 20:48:49,328 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-14 20:48:49,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:48:49,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1293692697, now seen corresponding path program 1 times [2024-10-14 20:48:49,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:48:49,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243400405] [2024-10-14 20:48:49,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:48:49,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:48:49,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:48:49,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1483468611] [2024-10-14 20:48:49,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:48:49,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:48:49,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:48:49,341 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) [2024-10-14 20:48:49,341 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-14 20:48:49,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:48:49,376 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-14 20:48:49,377 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:48:49,495 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 20:48:49,495 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:48:49,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:48:49,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243400405] [2024-10-14 20:48:49,614 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:48:49,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1483468611] [2024-10-14 20:48:49,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1483468611] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:48:49,614 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:48:49,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-10-14 20:48:49,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646612057] [2024-10-14 20:48:49,614 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:48:49,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 20:48:49,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:48:49,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 20:48:49,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:48:49,616 INFO L87 Difference]: Start difference. First operand 90 states and 105 transitions. Second operand has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 20:48:49,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:48:49,755 INFO L93 Difference]: Finished difference Result 98 states and 108 transitions. [2024-10-14 20:48:49,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 20:48:49,756 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 39 [2024-10-14 20:48:49,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:48:49,756 INFO L225 Difference]: With dead ends: 98 [2024-10-14 20:48:49,758 INFO L226 Difference]: Without dead ends: 94 [2024-10-14 20:48:49,758 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:48:49,758 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 57 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:48:49,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 92 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:48:49,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-10-14 20:48:49,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 92. [2024-10-14 20:48:49,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 70 states have (on average 1.3428571428571427) internal successors, (94), 84 states have internal predecessors, (94), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 20:48:49,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 104 transitions. [2024-10-14 20:48:49,766 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 104 transitions. Word has length 39 [2024-10-14 20:48:49,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:48:49,766 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 104 transitions. [2024-10-14 20:48:49,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 20:48:49,766 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 104 transitions. [2024-10-14 20:48:49,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-10-14 20:48:49,768 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:48:49,768 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:48:49,780 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-14 20:48:49,972 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 [2024-10-14 20:48:49,973 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-14 20:48:49,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:48:49,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1449767892, now seen corresponding path program 1 times [2024-10-14 20:48:49,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:48:49,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598888887] [2024-10-14 20:48:49,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:48:49,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:48:49,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:48:49,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1897159478] [2024-10-14 20:48:49,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:48:49,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:48:49,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:48:49,987 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) [2024-10-14 20:48:49,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-14 20:48:50,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:48:50,016 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-14 20:48:50,019 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:48:50,135 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 20:48:50,135 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:48:50,258 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:48:50,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:48:50,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598888887] [2024-10-14 20:48:50,259 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:48:50,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1897159478] [2024-10-14 20:48:50,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1897159478] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:48:50,259 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 20:48:50,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 8 [2024-10-14 20:48:50,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232183991] [2024-10-14 20:48:50,259 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 20:48:50,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 20:48:50,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:48:50,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 20:48:50,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:48:50,260 INFO L87 Difference]: Start difference. First operand 92 states and 104 transitions. Second operand has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-10-14 20:48:52,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:48:52,335 INFO L93 Difference]: Finished difference Result 126 states and 150 transitions. [2024-10-14 20:48:52,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 20:48:52,336 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 40 [2024-10-14 20:48:52,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:48:52,337 INFO L225 Difference]: With dead ends: 126 [2024-10-14 20:48:52,337 INFO L226 Difference]: Without dead ends: 124 [2024-10-14 20:48:52,338 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-10-14 20:48:52,338 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 109 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:48:52,338 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 133 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-14 20:48:52,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-10-14 20:48:52,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 115. [2024-10-14 20:48:52,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 92 states have (on average 1.3804347826086956) internal successors, (127), 106 states have internal predecessors, (127), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-14 20:48:52,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 139 transitions. [2024-10-14 20:48:52,344 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 139 transitions. Word has length 40 [2024-10-14 20:48:52,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:48:52,344 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 139 transitions. [2024-10-14 20:48:52,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-10-14 20:48:52,344 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 139 transitions. [2024-10-14 20:48:52,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-14 20:48:52,345 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:48:52,345 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:48:52,357 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-14 20:48:52,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-14 20:48:52,547 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-14 20:48:52,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:48:52,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1657538610, now seen corresponding path program 1 times [2024-10-14 20:48:52,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:48:52,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833020752] [2024-10-14 20:48:52,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:48:52,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:48:52,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:48:52,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2009880105] [2024-10-14 20:48:52,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:48:52,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:48:52,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:48:52,563 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) [2024-10-14 20:48:52,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-14 20:48:52,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:48:52,594 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-14 20:48:52,595 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:48:52,702 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:48:52,703 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:48:52,807 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:48:52,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:48:52,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833020752] [2024-10-14 20:48:52,807 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:48:52,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009880105] [2024-10-14 20:48:52,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2009880105] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:48:52,807 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 20:48:52,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-10-14 20:48:52,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936062085] [2024-10-14 20:48:52,807 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 20:48:52,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 20:48:52,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:48:52,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 20:48:52,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:48:52,808 INFO L87 Difference]: Start difference. First operand 115 states and 139 transitions. Second operand has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-14 20:48:54,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 20:48:58,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 20:49:02,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 20:49:03,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:49:03,260 INFO L93 Difference]: Finished difference Result 120 states and 139 transitions. [2024-10-14 20:49:03,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 20:49:03,260 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 42 [2024-10-14 20:49:03,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:49:03,261 INFO L225 Difference]: With dead ends: 120 [2024-10-14 20:49:03,261 INFO L226 Difference]: Without dead ends: 116 [2024-10-14 20:49:03,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:49:03,261 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 44 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2024-10-14 20:49:03,261 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 130 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 216 Invalid, 2 Unknown, 0 Unchecked, 10.4s Time] [2024-10-14 20:49:03,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-10-14 20:49:03,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2024-10-14 20:49:03,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 92 states have (on average 1.3043478260869565) internal successors, (120), 105 states have internal predecessors, (120), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-14 20:49:03,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 132 transitions. [2024-10-14 20:49:03,266 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 132 transitions. Word has length 42 [2024-10-14 20:49:03,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:49:03,267 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 132 transitions. [2024-10-14 20:49:03,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-14 20:49:03,267 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 132 transitions. [2024-10-14 20:49:03,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-10-14 20:49:03,267 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:49:03,267 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 20:49:03,279 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-14 20:49:03,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-14 20:49:03,468 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-14 20:49:03,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:49:03,468 INFO L85 PathProgramCache]: Analyzing trace with hash -69608220, now seen corresponding path program 1 times [2024-10-14 20:49:03,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:49:03,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241754798] [2024-10-14 20:49:03,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:49:03,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:49:03,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:49:03,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:49:03,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:49:03,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 20:49:03,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:49:03,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-14 20:49:03,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:49:03,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-14 20:49:03,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:49:03,535 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-14 20:49:03,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:49:03,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241754798] [2024-10-14 20:49:03,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241754798] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:49:03,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345376209] [2024-10-14 20:49:03,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:49:03,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:49:03,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:49:03,537 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) [2024-10-14 20:49:03,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-14 20:49:03,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:49:03,569 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 20:49:03,570 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:49:03,610 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-14 20:49:03,610 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:49:03,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [345376209] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:49:03,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:49:03,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-10-14 20:49:03,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373942488] [2024-10-14 20:49:03,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:49:03,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:49:03,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:49:03,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:49:03,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:49:03,612 INFO L87 Difference]: Start difference. First operand 114 states and 132 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-14 20:49:03,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:49:03,629 INFO L93 Difference]: Finished difference Result 114 states and 132 transitions. [2024-10-14 20:49:03,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:49:03,629 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 52 [2024-10-14 20:49:03,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:49:03,630 INFO L225 Difference]: With dead ends: 114 [2024-10-14 20:49:03,630 INFO L226 Difference]: Without dead ends: 113 [2024-10-14 20:49:03,630 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:49:03,630 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 10 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:49:03,630 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 105 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:49:03,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-10-14 20:49:03,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2024-10-14 20:49:03,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 92 states have (on average 1.2717391304347827) internal successors, (117), 104 states have internal predecessors, (117), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-14 20:49:03,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 129 transitions. [2024-10-14 20:49:03,635 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 129 transitions. Word has length 52 [2024-10-14 20:49:03,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:49:03,635 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 129 transitions. [2024-10-14 20:49:03,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-14 20:49:03,635 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 129 transitions. [2024-10-14 20:49:03,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-14 20:49:03,636 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:49:03,636 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 20:49:03,649 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-10-14 20:49:03,836 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,SelfDestructingSolverStorable14 [2024-10-14 20:49:03,837 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-14 20:49:03,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:49:03,837 INFO L85 PathProgramCache]: Analyzing trace with hash 2137112547, now seen corresponding path program 1 times [2024-10-14 20:49:03,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:49:03,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103377906] [2024-10-14 20:49:03,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:49:03,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:49:03,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:49:03,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:49:03,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:49:03,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 20:49:03,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:49:03,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-14 20:49:03,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:49:03,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-14 20:49:03,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:49:03,923 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-14 20:49:03,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:49:03,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103377906] [2024-10-14 20:49:03,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103377906] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:49:03,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652799391] [2024-10-14 20:49:03,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:49:03,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:49:03,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:49:03,925 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) [2024-10-14 20:49:03,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-14 20:49:03,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:49:03,958 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 20:49:03,960 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:49:03,993 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-14 20:49:03,993 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:49:04,041 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-14 20:49:04,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1652799391] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:49:04,042 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:49:04,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-10-14 20:49:04,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440457112] [2024-10-14 20:49:04,042 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:49:04,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 20:49:04,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:49:04,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 20:49:04,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-14 20:49:04,043 INFO L87 Difference]: Start difference. First operand 113 states and 129 transitions. Second operand has 7 states, 6 states have (on average 13.833333333333334) internal successors, (83), 7 states have internal predecessors, (83), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-10-14 20:49:04,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:49:04,067 INFO L93 Difference]: Finished difference Result 117 states and 129 transitions. [2024-10-14 20:49:04,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 20:49:04,067 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.833333333333334) internal successors, (83), 7 states have internal predecessors, (83), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 53 [2024-10-14 20:49:04,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:49:04,068 INFO L225 Difference]: With dead ends: 117 [2024-10-14 20:49:04,068 INFO L226 Difference]: Without dead ends: 116 [2024-10-14 20:49:04,068 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-14 20:49:04,068 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 19 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:49:04,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 169 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:49:04,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-10-14 20:49:04,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 112. [2024-10-14 20:49:04,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 92 states have (on average 1.2391304347826086) internal successors, (114), 103 states have internal predecessors, (114), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-14 20:49:04,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 126 transitions. [2024-10-14 20:49:04,075 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 126 transitions. Word has length 53 [2024-10-14 20:49:04,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:49:04,075 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 126 transitions. [2024-10-14 20:49:04,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.833333333333334) internal successors, (83), 7 states have internal predecessors, (83), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-10-14 20:49:04,075 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 126 transitions. [2024-10-14 20:49:04,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-14 20:49:04,076 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:49:04,076 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 20:49:04,089 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-14 20:49:04,276 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,SelfDestructingSolverStorable15 [2024-10-14 20:49:04,277 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-10-14 20:49:04,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:49:04,277 INFO L85 PathProgramCache]: Analyzing trace with hash 769530371, now seen corresponding path program 1 times [2024-10-14 20:49:04,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:49:04,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759887474] [2024-10-14 20:49:04,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:49:04,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:49:04,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:49:04,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1141281056] [2024-10-14 20:49:04,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:49:04,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:49:04,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:49:04,295 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) [2024-10-14 20:49:04,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-14 20:49:04,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:49:04,327 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-14 20:49:04,327 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:49:04,567 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-14 20:49:04,567 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:50:09,451 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-14 20:50:09,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:50:09,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759887474] [2024-10-14 20:50:09,452 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:50:09,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1141281056] [2024-10-14 20:50:09,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1141281056] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:50:09,452 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 20:50:09,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-10-14 20:50:09,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084901885] [2024-10-14 20:50:09,452 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 20:50:09,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 20:50:09,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:50:09,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 20:50:09,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=115, Unknown=4, NotChecked=0, Total=156 [2024-10-14 20:50:09,453 INFO L87 Difference]: Start difference. First operand 112 states and 126 transitions. Second operand has 13 states, 12 states have (on average 6.666666666666667) internal successors, (80), 13 states have internal predecessors, (80), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) [2024-10-14 20:50:13,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 20:50:17,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 20:50:21,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 20:50:25,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 20:50:29,885 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 [0]