./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound5.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a9fbcd5bc820bcc72ba138482dd1579d30a89debbfe581511878d5fb87d021a2 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 04:54:05,796 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 04:54:05,847 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 04:54:05,852 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 04:54:05,852 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 04:54:05,874 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 04:54:05,876 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 04:54:05,876 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 04:54:05,876 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 04:54:05,876 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 04:54:05,877 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 04:54:05,877 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 04:54:05,877 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 04:54:05,877 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 04:54:05,878 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 04:54:05,878 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 04:54:05,878 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 04:54:05,878 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 04:54:05,878 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 04:54:05,878 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 04:54:05,878 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 04:54:05,878 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 04:54:05,878 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 04:54:05,879 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 04:54:05,879 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 04:54:05,879 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 04:54:05,879 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 04:54:05,879 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 04:54:05,879 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 04:54:05,879 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 04:54:05,879 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 04:54:05,879 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 04:54:05,879 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 04:54:05,880 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 04:54:05,880 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 04:54:05,880 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 04:54:05,880 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 04:54:05,880 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 04:54:05,880 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 04:54:05,880 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 04:54:05,880 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 04:54:05,880 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 04:54:05,880 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 04:54:05,880 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 ! call(reach_error())) ) 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 -> a9fbcd5bc820bcc72ba138482dd1579d30a89debbfe581511878d5fb87d021a2 [2025-03-08 04:54:06,097 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 04:54:06,104 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 04:54:06,106 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 04:54:06,107 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 04:54:06,107 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 04:54:06,109 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound5.c [2025-03-08 04:54:07,190 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bec755677/37199bf79bfc4420adf501d39cb89842/FLAGcd9bb9bcf [2025-03-08 04:54:07,379 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 04:54:07,380 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound5.c [2025-03-08 04:54:07,386 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bec755677/37199bf79bfc4420adf501d39cb89842/FLAGcd9bb9bcf [2025-03-08 04:54:07,760 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bec755677/37199bf79bfc4420adf501d39cb89842 [2025-03-08 04:54:07,762 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 04:54:07,763 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 04:54:07,764 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 04:54:07,764 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 04:54:07,767 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 04:54:07,767 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 04:54:07" (1/1) ... [2025-03-08 04:54:07,768 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57c6f05c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:54:07, skipping insertion in model container [2025-03-08 04:54:07,768 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 04:54:07" (1/1) ... [2025-03-08 04:54:07,777 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 04:54:07,859 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound5.c[597,610] [2025-03-08 04:54:07,870 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 04:54:07,876 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 04:54:07,883 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound5.c[597,610] [2025-03-08 04:54:07,887 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 04:54:07,895 INFO L204 MainTranslator]: Completed translation [2025-03-08 04:54:07,896 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:54:07 WrapperNode [2025-03-08 04:54:07,896 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 04:54:07,897 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 04:54:07,897 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 04:54:07,897 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 04:54:07,902 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:54:07" (1/1) ... [2025-03-08 04:54:07,906 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:54:07" (1/1) ... [2025-03-08 04:54:07,915 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 49 [2025-03-08 04:54:07,916 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 04:54:07,916 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 04:54:07,916 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 04:54:07,916 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 04:54:07,921 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:54:07" (1/1) ... [2025-03-08 04:54:07,921 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:54:07" (1/1) ... [2025-03-08 04:54:07,922 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:54:07" (1/1) ... [2025-03-08 04:54:07,928 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]. [2025-03-08 04:54:07,928 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:54:07" (1/1) ... [2025-03-08 04:54:07,928 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:54:07" (1/1) ... [2025-03-08 04:54:07,931 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:54:07" (1/1) ... [2025-03-08 04:54:07,932 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:54:07" (1/1) ... [2025-03-08 04:54:07,932 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:54:07" (1/1) ... [2025-03-08 04:54:07,933 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:54:07" (1/1) ... [2025-03-08 04:54:07,934 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 04:54:07,934 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 04:54:07,934 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 04:54:07,934 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 04:54:07,938 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:54:07" (1/1) ... [2025-03-08 04:54:07,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 04:54:07,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 04:54:07,965 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) [2025-03-08 04:54:07,968 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 [2025-03-08 04:54:07,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 04:54:07,988 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 04:54:07,989 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 04:54:07,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 04:54:07,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 04:54:07,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 04:54:07,989 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 04:54:07,989 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 04:54:08,031 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 04:54:08,033 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 04:54:08,167 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2025-03-08 04:54:08,167 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 04:54:08,176 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 04:54:08,176 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 04:54:08,177 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 04:54:08 BoogieIcfgContainer [2025-03-08 04:54:08,177 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 04:54:08,179 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 04:54:08,179 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 04:54:08,183 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 04:54:08,183 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 04:54:07" (1/3) ... [2025-03-08 04:54:08,184 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e632fa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 04:54:08, skipping insertion in model container [2025-03-08 04:54:08,184 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:54:07" (2/3) ... [2025-03-08 04:54:08,184 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e632fa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 04:54:08, skipping insertion in model container [2025-03-08 04:54:08,184 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 04:54:08" (3/3) ... [2025-03-08 04:54:08,185 INFO L128 eAbstractionObserver]: Analyzing ICFG bresenham-ll_valuebound5.c [2025-03-08 04:54:08,197 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 04:54:08,198 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG bresenham-ll_valuebound5.c that has 3 procedures, 27 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 04:54:08,239 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 04:54:08,250 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;@26d2aa33, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 04:54:08,250 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 04:54:08,254 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 20 states have internal predecessors, (25), 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) [2025-03-08 04:54:08,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-03-08 04:54:08,260 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 04:54:08,260 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 04:54:08,260 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 04:54:08,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 04:54:08,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1673088518, now seen corresponding path program 1 times [2025-03-08 04:54:08,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 04:54:08,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483273641] [2025-03-08 04:54:08,270 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 04:54:08,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 04:54:08,323 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-08 04:54:08,335 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-08 04:54:08,335 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 04:54:08,335 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 04:54:08,367 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-08 04:54:08,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 04:54:08,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483273641] [2025-03-08 04:54:08,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483273641] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 04:54:08,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562427109] [2025-03-08 04:54:08,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 04:54:08,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 04:54:08,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 04:54:08,370 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) [2025-03-08 04:54:08,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 04:54:08,402 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-08 04:54:08,423 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-08 04:54:08,424 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 04:54:08,424 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 04:54:08,425 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 04:54:08,429 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 04:54:08,435 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-08 04:54:08,435 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 04:54:08,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562427109] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 04:54:08,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 04:54:08,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-08 04:54:08,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19744585] [2025-03-08 04:54:08,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 04:54:08,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 04:54:08,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 04:54:08,451 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 04:54:08,451 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 04:54:08,452 INFO L87 Difference]: Start difference. First operand has 27 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 20 states have internal predecessors, (25), 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 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-08 04:54:08,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 04:54:08,462 INFO L93 Difference]: Finished difference Result 51 states and 66 transitions. [2025-03-08 04:54:08,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 04:54:08,464 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19 [2025-03-08 04:54:08,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 04:54:08,468 INFO L225 Difference]: With dead ends: 51 [2025-03-08 04:54:08,468 INFO L226 Difference]: Without dead ends: 23 [2025-03-08 04:54:08,470 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 04:54:08,473 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 04:54:08,475 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 04:54:08,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2025-03-08 04:54:08,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2025-03-08 04:54:08,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-08 04:54:08,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2025-03-08 04:54:08,497 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 19 [2025-03-08 04:54:08,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 04:54:08,497 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2025-03-08 04:54:08,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-08 04:54:08,498 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2025-03-08 04:54:08,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-03-08 04:54:08,498 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 04:54:08,498 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 04:54:08,504 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-08 04:54:08,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-08 04:54:08,699 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 04:54:08,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 04:54:08,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1373185864, now seen corresponding path program 1 times [2025-03-08 04:54:08,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 04:54:08,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459180078] [2025-03-08 04:54:08,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 04:54:08,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 04:54:08,708 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-08 04:54:08,726 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-08 04:54:08,726 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 04:54:08,726 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-08 04:54:08,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [433079122] [2025-03-08 04:54:08,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 04:54:08,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 04:54:08,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 04:54:08,730 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) [2025-03-08 04:54:08,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-08 04:54:08,756 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-08 04:54:08,774 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-08 04:54:08,775 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 04:54:08,775 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 04:54:08,776 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-08 04:54:08,777 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 04:54:08,890 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 04:54:08,890 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 04:54:08,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 04:54:08,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459180078] [2025-03-08 04:54:08,891 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-08 04:54:08,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [433079122] [2025-03-08 04:54:08,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [433079122] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 04:54:08,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 04:54:08,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 04:54:08,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31569024] [2025-03-08 04:54:08,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 04:54:08,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 04:54:08,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 04:54:08,892 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 04:54:08,892 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 04:54:08,892 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 04:54:08,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 04:54:08,976 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2025-03-08 04:54:08,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-08 04:54:08,976 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2025-03-08 04:54:08,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 04:54:08,977 INFO L225 Difference]: With dead ends: 35 [2025-03-08 04:54:08,978 INFO L226 Difference]: Without dead ends: 33 [2025-03-08 04:54:08,979 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-08 04:54:08,979 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 8 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 04:54:08,980 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 78 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 04:54:08,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2025-03-08 04:54:08,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 29. [2025-03-08 04:54:08,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 20 states have (on average 1.15) internal successors, (23), 22 states have internal predecessors, (23), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-08 04:54:08,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2025-03-08 04:54:08,986 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 19 [2025-03-08 04:54:08,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 04:54:08,988 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2025-03-08 04:54:08,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 04:54:08,989 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2025-03-08 04:54:08,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-03-08 04:54:08,990 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 04:54:08,990 INFO L218 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] [2025-03-08 04:54:08,996 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-08 04:54:09,190 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,SelfDestructingSolverStorable1 [2025-03-08 04:54:09,191 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 04:54:09,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 04:54:09,191 INFO L85 PathProgramCache]: Analyzing trace with hash 815108111, now seen corresponding path program 1 times [2025-03-08 04:54:09,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 04:54:09,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7357612] [2025-03-08 04:54:09,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 04:54:09,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 04:54:09,202 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-08 04:54:09,221 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-08 04:54:09,221 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 04:54:09,221 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 04:54:09,392 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-08 04:54:09,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 04:54:09,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7357612] [2025-03-08 04:54:09,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7357612] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 04:54:09,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [121042955] [2025-03-08 04:54:09,393 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 04:54:09,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 04:54:09,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 04:54:09,395 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) [2025-03-08 04:54:09,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-08 04:54:09,416 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-08 04:54:09,425 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-08 04:54:09,425 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 04:54:09,425 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 04:54:09,426 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-08 04:54:09,427 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 04:54:09,511 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 04:54:09,512 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 04:54:09,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [121042955] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 04:54:09,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 04:54:09,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2025-03-08 04:54:09,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023547331] [2025-03-08 04:54:09,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 04:54:09,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 04:54:09,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 04:54:09,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 04:54:09,513 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2025-03-08 04:54:09,513 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-08 04:54:09,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 04:54:09,575 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2025-03-08 04:54:09,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-08 04:54:09,576 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 26 [2025-03-08 04:54:09,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 04:54:09,576 INFO L225 Difference]: With dead ends: 39 [2025-03-08 04:54:09,576 INFO L226 Difference]: Without dead ends: 31 [2025-03-08 04:54:09,577 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2025-03-08 04:54:09,577 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 6 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 04:54:09,577 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 78 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 04:54:09,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2025-03-08 04:54:09,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2025-03-08 04:54:09,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 22 states have internal predecessors, (24), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-08 04:54:09,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2025-03-08 04:54:09,581 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 26 [2025-03-08 04:54:09,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 04:54:09,581 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2025-03-08 04:54:09,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-08 04:54:09,582 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2025-03-08 04:54:09,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2025-03-08 04:54:09,582 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 04:54:09,582 INFO L218 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] [2025-03-08 04:54:09,589 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-08 04:54:09,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 04:54:09,787 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 04:54:09,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 04:54:09,787 INFO L85 PathProgramCache]: Analyzing trace with hash 126451028, now seen corresponding path program 1 times [2025-03-08 04:54:09,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 04:54:09,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938016142] [2025-03-08 04:54:09,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 04:54:09,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 04:54:09,792 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-08 04:54:09,805 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-08 04:54:09,805 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 04:54:09,805 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-08 04:54:09,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [299911460] [2025-03-08 04:54:09,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 04:54:09,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 04:54:09,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 04:54:09,808 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) [2025-03-08 04:54:09,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-08 04:54:09,829 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-08 04:54:09,838 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-08 04:54:09,839 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 04:54:09,839 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 04:54:09,840 INFO L256 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-03-08 04:54:09,841 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 04:54:09,977 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 04:54:09,978 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 04:54:10,152 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 04:54:10,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 04:54:10,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938016142] [2025-03-08 04:54:10,152 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-08 04:54:10,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [299911460] [2025-03-08 04:54:10,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [299911460] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 04:54:10,152 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-08 04:54:10,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 17 [2025-03-08 04:54:10,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892673735] [2025-03-08 04:54:10,153 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-08 04:54:10,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-03-08 04:54:10,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 04:54:10,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-03-08 04:54:10,154 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2025-03-08 04:54:10,154 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 17 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 16 states have internal predecessors, (28), 5 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-08 04:54:10,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 04:54:10,367 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2025-03-08 04:54:10,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-08 04:54:10,368 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 16 states have internal predecessors, (28), 5 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 28 [2025-03-08 04:54:10,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 04:54:10,369 INFO L225 Difference]: With dead ends: 45 [2025-03-08 04:54:10,369 INFO L226 Difference]: Without dead ends: 41 [2025-03-08 04:54:10,370 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=383, Unknown=0, NotChecked=0, Total=462 [2025-03-08 04:54:10,370 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 13 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 04:54:10,371 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 173 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 04:54:10,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2025-03-08 04:54:10,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 32. [2025-03-08 04:54:10,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 23 states have (on average 1.0869565217391304) internal successors, (25), 23 states have internal predecessors, (25), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-08 04:54:10,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2025-03-08 04:54:10,383 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 28 [2025-03-08 04:54:10,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 04:54:10,383 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2025-03-08 04:54:10,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 16 states have internal predecessors, (28), 5 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-08 04:54:10,383 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2025-03-08 04:54:10,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2025-03-08 04:54:10,384 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 04:54:10,384 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 04:54:10,389 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-08 04:54:10,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 04:54:10,585 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 04:54:10,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 04:54:10,585 INFO L85 PathProgramCache]: Analyzing trace with hash 948343939, now seen corresponding path program 1 times [2025-03-08 04:54:10,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 04:54:10,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042342113] [2025-03-08 04:54:10,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 04:54:10,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 04:54:10,589 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-08 04:54:10,596 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-08 04:54:10,597 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 04:54:10,597 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 04:54:10,729 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-08 04:54:10,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 04:54:10,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042342113] [2025-03-08 04:54:10,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042342113] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 04:54:10,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832406855] [2025-03-08 04:54:10,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 04:54:10,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 04:54:10,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 04:54:10,732 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) [2025-03-08 04:54:10,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-08 04:54:10,752 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-08 04:54:10,761 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-08 04:54:10,762 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 04:54:10,762 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 04:54:10,762 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 31 conjuncts are in the unsatisfiable core [2025-03-08 04:54:10,764 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 04:54:11,088 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-08 04:54:11,088 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 04:54:11,349 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-08 04:54:11,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [832406855] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 04:54:11,350 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 04:54:11,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 15, 11] total 27 [2025-03-08 04:54:11,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236666443] [2025-03-08 04:54:11,351 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 04:54:11,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2025-03-08 04:54:11,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 04:54:11,352 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2025-03-08 04:54:11,352 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=603, Unknown=0, NotChecked=0, Total=702 [2025-03-08 04:54:11,353 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand has 27 states, 23 states have (on average 2.130434782608696) internal successors, (49), 23 states have internal predecessors, (49), 10 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 8 states have call predecessors, (11), 7 states have call successors, (11) [2025-03-08 04:54:12,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 04:54:12,149 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2025-03-08 04:54:12,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2025-03-08 04:54:12,150 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 23 states have (on average 2.130434782608696) internal successors, (49), 23 states have internal predecessors, (49), 10 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 8 states have call predecessors, (11), 7 states have call successors, (11) Word has length 35 [2025-03-08 04:54:12,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 04:54:12,150 INFO L225 Difference]: With dead ends: 48 [2025-03-08 04:54:12,150 INFO L226 Difference]: Without dead ends: 0 [2025-03-08 04:54:12,151 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=386, Invalid=1684, Unknown=0, NotChecked=0, Total=2070 [2025-03-08 04:54:12,151 INFO L435 NwaCegarLoop]: 10 mSDtfsCounter, 50 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 04:54:12,152 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 132 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 04:54:12,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-08 04:54:12,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-08 04:54:12,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 04:54:12,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-08 04:54:12,152 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2025-03-08 04:54:12,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 04:54:12,152 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-08 04:54:12,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 23 states have (on average 2.130434782608696) internal successors, (49), 23 states have internal predecessors, (49), 10 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 8 states have call predecessors, (11), 7 states have call successors, (11) [2025-03-08 04:54:12,152 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-08 04:54:12,152 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-08 04:54:12,158 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-08 04:54:12,164 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-08 04:54:12,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 04:54:12,360 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-03-08 04:54:12,362 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-08 04:54:12,631 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 04:54:12,643 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2025-03-08 04:54:12,645 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 04:54:12 BoogieIcfgContainer [2025-03-08 04:54:12,645 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 04:54:12,646 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 04:54:12,646 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 04:54:12,646 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 04:54:12,646 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 04:54:08" (3/4) ... [2025-03-08 04:54:12,648 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-08 04:54:12,651 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2025-03-08 04:54:12,652 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2025-03-08 04:54:12,653 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2025-03-08 04:54:12,654 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-03-08 04:54:12,654 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-08 04:54:12,654 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-08 04:54:12,710 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-08 04:54:12,711 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-08 04:54:12,711 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 04:54:12,712 INFO L158 Benchmark]: Toolchain (without parser) took 4948.56ms. Allocated memory is still 142.6MB. Free memory was 108.4MB in the beginning and 99.7MB in the end (delta: 8.7MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2025-03-08 04:54:12,712 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 201.3MB. Free memory is still 116.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 04:54:12,712 INFO L158 Benchmark]: CACSL2BoogieTranslator took 133.23ms. Allocated memory is still 142.6MB. Free memory was 108.4MB in the beginning and 96.5MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 04:54:12,713 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.54ms. Allocated memory is still 142.6MB. Free memory was 96.5MB in the beginning and 95.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 04:54:12,713 INFO L158 Benchmark]: Boogie Preprocessor took 17.53ms. Allocated memory is still 142.6MB. Free memory was 95.5MB in the beginning and 94.5MB in the end (delta: 998.4kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 04:54:12,713 INFO L158 Benchmark]: IcfgBuilder took 242.95ms. Allocated memory is still 142.6MB. Free memory was 94.5MB in the beginning and 82.7MB in the end (delta: 11.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-08 04:54:12,714 INFO L158 Benchmark]: TraceAbstraction took 4466.28ms. Allocated memory is still 142.6MB. Free memory was 81.7MB in the beginning and 105.5MB in the end (delta: -23.8MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. [2025-03-08 04:54:12,714 INFO L158 Benchmark]: Witness Printer took 65.08ms. Allocated memory is still 142.6MB. Free memory was 105.5MB in the beginning and 99.7MB in the end (delta: 5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 04:54:12,715 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 201.3MB. Free memory is still 116.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 133.23ms. Allocated memory is still 142.6MB. Free memory was 108.4MB in the beginning and 96.5MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.54ms. Allocated memory is still 142.6MB. Free memory was 96.5MB in the beginning and 95.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.53ms. Allocated memory is still 142.6MB. Free memory was 95.5MB in the beginning and 94.5MB in the end (delta: 998.4kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 242.95ms. Allocated memory is still 142.6MB. Free memory was 94.5MB in the beginning and 82.7MB in the end (delta: 11.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4466.28ms. Allocated memory is still 142.6MB. Free memory was 81.7MB in the beginning and 105.5MB in the end (delta: -23.8MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. * Witness Printer took 65.08ms. Allocated memory is still 142.6MB. Free memory was 105.5MB in the beginning and 99.7MB in the end (delta: 5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 16]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 27 locations, 37 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.1s, OverallIterations: 5, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 78 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 77 mSDsluCounter, 491 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 401 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 590 IncrementalHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 90 mSDtfsCounter, 590 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 231 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 427 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=4, InterpolantAutomatonStates: 59, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 14 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 254 NumberOfCodeBlocks, 254 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 260 ConstructedInterpolants, 3 QuantifiedInterpolants, 1061 SizeOfPredicates, 13 NumberOfNonLiveVariables, 376 ConjunctsInSsa, 87 ConjunctsInUnsatCore, 10 InterpolantComputations, 3 PerfectInterpolantSequences, 64/85 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 32]: Location Invariant Derived location invariant: (((((((((((__int128) X * y) * 2) + X) + v) == ((((__int128) Y * x) * 2) + ((long long) 2 * Y))) && (X <= 5)) && (0 <= Y)) && ((((__int128) X * y) + y) == ((__int128) x * y))) && (0 <= X)) || (((((((((__int128) X * y) * 2) + X) + v) == ((((__int128) Y * x) * 2) + ((long long) 2 * Y))) && (X <= 5)) && (0 <= Y)) && (0 <= X))) RESULT: Ultimate proved your program to be correct! [2025-03-08 04:54:12,726 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE