./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 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound5.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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-?-551b009-m [2025-01-09 03:10:21,842 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 03:10:21,905 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 03:10:21,911 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 03:10:21,912 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 03:10:21,935 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 03:10:21,935 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 03:10:21,936 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 03:10:21,936 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 03:10:21,936 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 03:10:21,937 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 03:10:21,937 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 03:10:21,937 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 03:10:21,938 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 03:10:21,938 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 03:10:21,938 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 03:10:21,938 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 03:10:21,938 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 03:10:21,938 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 03:10:21,938 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 03:10:21,938 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 03:10:21,939 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 03:10:21,939 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 03:10:21,939 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 03:10:21,939 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 03:10:21,939 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 03:10:21,939 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 03:10:21,939 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 03:10:21,939 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 03:10:21,939 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 03:10:21,939 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 03:10:21,939 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 03:10:21,939 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:10:21,940 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 03:10:21,940 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 03:10:21,940 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 03:10:21,940 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 03:10:21,940 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:10:21,941 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 03:10:21,941 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 03:10:21,941 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 03:10:21,941 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 03:10:21,941 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 03:10:21,941 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 03:10:21,941 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 03:10:21,941 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 03:10:21,941 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 03:10:21,941 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 03:10:21,941 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-jdk21/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 [2025-01-09 03:10:22,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 03:10:22,188 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 03:10:22,190 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 03:10:22,191 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 03:10:22,191 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 03:10:22,193 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound5.c [2025-01-09 03:10:23,306 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/76af644a5/d4a61639c2d44d68b5ca91fd48e32c7a/FLAG6143e9e8c [2025-01-09 03:10:23,539 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 03:10:23,540 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound5.c [2025-01-09 03:10:23,547 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/76af644a5/d4a61639c2d44d68b5ca91fd48e32c7a/FLAG6143e9e8c [2025-01-09 03:10:23,894 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/76af644a5/d4a61639c2d44d68b5ca91fd48e32c7a [2025-01-09 03:10:23,896 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 03:10:23,897 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 03:10:23,898 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 03:10:23,898 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 03:10:23,901 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 03:10:23,901 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 03:10:23" (1/1) ... [2025-01-09 03:10:23,902 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b9bd829 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:10:23, skipping insertion in model container [2025-01-09 03:10:23,902 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 03:10:23" (1/1) ... [2025-01-09 03:10:23,912 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 03:10:24,019 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound5.c[597,610] [2025-01-09 03:10:24,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 03:10:24,046 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 03:10:24,054 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound5.c[597,610] [2025-01-09 03:10:24,063 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 03:10:24,073 INFO L204 MainTranslator]: Completed translation [2025-01-09 03:10:24,075 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:10:24 WrapperNode [2025-01-09 03:10:24,076 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 03:10:24,077 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 03:10:24,077 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 03:10:24,077 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 03:10:24,084 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:10:24" (1/1) ... [2025-01-09 03:10:24,090 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:10:24" (1/1) ... [2025-01-09 03:10:24,102 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 49 [2025-01-09 03:10:24,103 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 03:10:24,103 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 03:10:24,104 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 03:10:24,104 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 03:10:24,110 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:10:24" (1/1) ... [2025-01-09 03:10:24,111 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:10:24" (1/1) ... [2025-01-09 03:10:24,112 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:10:24" (1/1) ... [2025-01-09 03:10:24,123 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]. [2025-01-09 03:10:24,124 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:10:24" (1/1) ... [2025-01-09 03:10:24,124 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:10:24" (1/1) ... [2025-01-09 03:10:24,127 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:10:24" (1/1) ... [2025-01-09 03:10:24,128 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:10:24" (1/1) ... [2025-01-09 03:10:24,133 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:10:24" (1/1) ... [2025-01-09 03:10:24,133 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:10:24" (1/1) ... [2025-01-09 03:10:24,134 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:10:24" (1/1) ... [2025-01-09 03:10:24,135 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 03:10:24,137 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 03:10:24,137 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 03:10:24,137 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 03:10:24,138 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:10:24" (1/1) ... [2025-01-09 03:10:24,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:10:24,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:10:24,165 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 03:10:24,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 03:10:24,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 03:10:24,188 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 03:10:24,188 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 03:10:24,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 03:10:24,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 03:10:24,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 03:10:24,189 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 03:10:24,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 03:10:24,235 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 03:10:24,236 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 03:10:24,356 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2025-01-09 03:10:24,356 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 03:10:24,362 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 03:10:24,363 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 03:10:24,363 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 03:10:24 BoogieIcfgContainer [2025-01-09 03:10:24,363 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 03:10:24,364 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 03:10:24,365 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 03:10:24,368 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 03:10:24,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 03:10:23" (1/3) ... [2025-01-09 03:10:24,368 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b6e4823 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 03:10:24, skipping insertion in model container [2025-01-09 03:10:24,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:10:24" (2/3) ... [2025-01-09 03:10:24,369 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b6e4823 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 03:10:24, skipping insertion in model container [2025-01-09 03:10:24,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 03:10:24" (3/3) ... [2025-01-09 03:10:24,370 INFO L128 eAbstractionObserver]: Analyzing ICFG bresenham-ll_valuebound5.c [2025-01-09 03:10:24,384 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 03:10:24,385 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. [2025-01-09 03:10:24,423 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 03:10:24,432 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;@773f4e35, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 03:10:24,432 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 03:10:24,435 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) [2025-01-09 03:10:24,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-01-09 03:10:24,441 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:10:24,441 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:10:24,441 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:10:24,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:10:24,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1218682020, now seen corresponding path program 1 times [2025-01-09 03:10:24,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:10:24,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379488736] [2025-01-09 03:10:24,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:10:24,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:10:24,492 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-09 03:10:24,501 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-09 03:10:24,501 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:10:24,501 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:10:24,542 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-09 03:10:24,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:10:24,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379488736] [2025-01-09 03:10:24,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379488736] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:10:24,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613641734] [2025-01-09 03:10:24,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:10:24,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:10:24,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:10:24,546 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:10:24,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-09 03:10:24,583 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-09 03:10:24,595 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-09 03:10:24,595 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:10:24,595 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:10:24,596 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 03:10:24,599 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:10:24,611 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-09 03:10:24,611 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:10:24,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [613641734] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:10:24,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:10:24,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 03:10:24,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179761402] [2025-01-09 03:10:24,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:10:24,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 03:10:24,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:10:24,633 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 03:10:24,635 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 03:10:24,636 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) [2025-01-09 03:10:24,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:10:24,646 INFO L93 Difference]: Finished difference Result 51 states and 66 transitions. [2025-01-09 03:10:24,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 03:10:24,648 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 [2025-01-09 03:10:24,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:10:24,651 INFO L225 Difference]: With dead ends: 51 [2025-01-09 03:10:24,652 INFO L226 Difference]: Without dead ends: 23 [2025-01-09 03:10:24,655 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 [2025-01-09 03:10:24,657 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 [2025-01-09 03:10:24,658 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] [2025-01-09 03:10:24,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2025-01-09 03:10:24,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2025-01-09 03:10:24,676 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) [2025-01-09 03:10:24,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2025-01-09 03:10:24,680 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 19 [2025-01-09 03:10:24,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:10:24,680 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2025-01-09 03:10:24,681 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) [2025-01-09 03:10:24,681 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2025-01-09 03:10:24,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-01-09 03:10:24,681 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:10:24,681 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:10:24,687 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-09 03:10:24,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-01-09 03:10:24,882 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:10:24,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:10:24,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1818487328, now seen corresponding path program 1 times [2025-01-09 03:10:24,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:10:24,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806680682] [2025-01-09 03:10:24,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:10:24,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:10:24,890 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-09 03:10:24,908 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-09 03:10:24,908 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:10:24,908 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-09 03:10:24,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1894697986] [2025-01-09 03:10:24,910 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:10:24,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:10:24,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:10:24,912 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:10:24,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-09 03:10:24,941 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-09 03:10:24,961 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-09 03:10:24,961 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:10:24,961 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:10:24,961 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-01-09 03:10:24,963 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:10:25,058 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-09 03:10:25,058 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:10:25,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:10:25,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806680682] [2025-01-09 03:10:25,059 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-09 03:10:25,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894697986] [2025-01-09 03:10:25,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894697986] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:10:25,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:10:25,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 03:10:25,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831148832] [2025-01-09 03:10:25,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:10:25,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 03:10:25,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:10:25,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 03:10:25,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:10:25,060 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) [2025-01-09 03:10:25,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:10:25,134 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2025-01-09 03:10:25,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 03:10:25,134 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 [2025-01-09 03:10:25,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:10:25,135 INFO L225 Difference]: With dead ends: 35 [2025-01-09 03:10:25,135 INFO L226 Difference]: Without dead ends: 33 [2025-01-09 03:10:25,135 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:10:25,136 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, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:10:25,136 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 78 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:10:25,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2025-01-09 03:10:25,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 29. [2025-01-09 03:10:25,140 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) [2025-01-09 03:10:25,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2025-01-09 03:10:25,141 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 19 [2025-01-09 03:10:25,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:10:25,142 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2025-01-09 03:10:25,142 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) [2025-01-09 03:10:25,142 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2025-01-09 03:10:25,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-01-09 03:10:25,142 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:10:25,142 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] [2025-01-09 03:10:25,148 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-09 03:10:25,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:10:25,349 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:10:25,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:10:25,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1877730505, now seen corresponding path program 1 times [2025-01-09 03:10:25,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:10:25,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617736262] [2025-01-09 03:10:25,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:10:25,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:10:25,357 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-01-09 03:10:25,381 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-01-09 03:10:25,382 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:10:25,382 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:10:25,554 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-09 03:10:25,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:10:25,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617736262] [2025-01-09 03:10:25,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617736262] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:10:25,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16146760] [2025-01-09 03:10:25,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:10:25,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:10:25,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:10:25,557 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:10:25,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-09 03:10:25,585 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-01-09 03:10:25,600 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-01-09 03:10:25,601 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:10:25,601 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:10:25,602 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-01-09 03:10:25,604 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:10:25,712 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-09 03:10:25,712 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:10:25,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [16146760] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:10:25,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:10:25,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2025-01-09 03:10:25,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445996888] [2025-01-09 03:10:25,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:10:25,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 03:10:25,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:10:25,714 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 03:10:25,715 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2025-01-09 03:10:25,715 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) [2025-01-09 03:10:25,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:10:25,793 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2025-01-09 03:10:25,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 03:10:25,793 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 [2025-01-09 03:10:25,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:10:25,794 INFO L225 Difference]: With dead ends: 39 [2025-01-09 03:10:25,794 INFO L226 Difference]: Without dead ends: 31 [2025-01-09 03:10:25,794 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 [2025-01-09 03:10:25,795 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, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:10:25,795 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 78 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:10:25,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2025-01-09 03:10:25,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2025-01-09 03:10:25,798 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) [2025-01-09 03:10:25,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2025-01-09 03:10:25,799 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 26 [2025-01-09 03:10:25,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:10:25,799 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2025-01-09 03:10:25,799 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) [2025-01-09 03:10:25,799 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2025-01-09 03:10:25,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2025-01-09 03:10:25,800 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:10:25,800 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] [2025-01-09 03:10:25,806 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-09 03:10:26,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:10:26,002 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:10:26,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:10:26,003 INFO L85 PathProgramCache]: Analyzing trace with hash -962487806, now seen corresponding path program 1 times [2025-01-09 03:10:26,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:10:26,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608807970] [2025-01-09 03:10:26,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:10:26,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:10:26,007 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-01-09 03:10:26,018 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-01-09 03:10:26,018 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:10:26,018 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-09 03:10:26,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [474947102] [2025-01-09 03:10:26,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:10:26,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:10:26,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:10:26,020 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:10:26,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-09 03:10:26,048 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-01-09 03:10:26,060 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-01-09 03:10:26,060 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:10:26,060 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:10:26,063 INFO L256 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-01-09 03:10:26,066 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:10:26,200 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-09 03:10:26,201 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 03:10:26,362 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-09 03:10:26,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:10:26,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608807970] [2025-01-09 03:10:26,363 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-09 03:10:26,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [474947102] [2025-01-09 03:10:26,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [474947102] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 03:10:26,363 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-09 03:10:26,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 17 [2025-01-09 03:10:26,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382950261] [2025-01-09 03:10:26,364 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-09 03:10:26,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-01-09 03:10:26,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:10:26,365 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-01-09 03:10:26,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2025-01-09 03:10:26,366 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) [2025-01-09 03:10:26,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:10:26,581 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2025-01-09 03:10:26,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-01-09 03:10:26,581 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 [2025-01-09 03:10:26,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:10:26,582 INFO L225 Difference]: With dead ends: 45 [2025-01-09 03:10:26,582 INFO L226 Difference]: Without dead ends: 41 [2025-01-09 03:10:26,582 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 [2025-01-09 03:10:26,583 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 [2025-01-09 03:10:26,583 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] [2025-01-09 03:10:26,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2025-01-09 03:10:26,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 32. [2025-01-09 03:10:26,587 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) [2025-01-09 03:10:26,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2025-01-09 03:10:26,588 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 28 [2025-01-09 03:10:26,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:10:26,588 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2025-01-09 03:10:26,588 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) [2025-01-09 03:10:26,588 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2025-01-09 03:10:26,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2025-01-09 03:10:26,589 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:10:26,589 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] [2025-01-09 03:10:26,596 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-09 03:10:26,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:10:26,793 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:10:26,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:10:26,793 INFO L85 PathProgramCache]: Analyzing trace with hash -998634283, now seen corresponding path program 1 times [2025-01-09 03:10:26,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:10:26,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901412090] [2025-01-09 03:10:26,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:10:26,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:10:26,799 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-01-09 03:10:26,806 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-01-09 03:10:26,806 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:10:26,806 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:10:26,973 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-01-09 03:10:26,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:10:26,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901412090] [2025-01-09 03:10:26,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901412090] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:10:26,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890234273] [2025-01-09 03:10:26,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:10:26,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:10:26,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:10:26,975 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:10:26,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-09 03:10:26,997 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-01-09 03:10:27,007 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-01-09 03:10:27,007 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:10:27,007 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:10:27,008 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 31 conjuncts are in the unsatisfiable core [2025-01-09 03:10:27,010 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:10:27,377 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-09 03:10:27,378 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 03:10:27,627 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-01-09 03:10:27,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1890234273] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 03:10:27,627 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 03:10:27,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 15, 11] total 27 [2025-01-09 03:10:27,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550452267] [2025-01-09 03:10:27,627 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 03:10:27,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2025-01-09 03:10:27,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:10:27,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2025-01-09 03:10:27,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=601, Unknown=0, NotChecked=0, Total=702 [2025-01-09 03:10:27,629 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) [2025-01-09 03:10:28,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:10:28,449 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2025-01-09 03:10:28,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2025-01-09 03:10:28,450 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 [2025-01-09 03:10:28,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:10:28,450 INFO L225 Difference]: With dead ends: 48 [2025-01-09 03:10:28,450 INFO L226 Difference]: Without dead ends: 0 [2025-01-09 03:10:28,451 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 404 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=388, Invalid=1682, Unknown=0, NotChecked=0, Total=2070 [2025-01-09 03:10:28,451 INFO L435 NwaCegarLoop]: 10 mSDtfsCounter, 45 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 03:10:28,452 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 123 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 03:10:28,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-01-09 03:10:28,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-01-09 03:10:28,452 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) [2025-01-09 03:10:28,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-01-09 03:10:28,452 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2025-01-09 03:10:28,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:10:28,452 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-01-09 03:10:28,453 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) [2025-01-09 03:10:28,453 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-01-09 03:10:28,453 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-01-09 03:10:28,458 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 03:10:28,463 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-01-09 03:10:28,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:10:28,661 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-01-09 03:10:28,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-01-09 03:10:28,849 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 03:10:28,858 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 03:10:28 BoogieIcfgContainer [2025-01-09 03:10:28,858 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 03:10:28,859 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 03:10:28,859 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 03:10:28,859 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 03:10:28,859 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 03:10:24" (3/4) ... [2025-01-09 03:10:28,861 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-09 03:10:28,865 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2025-01-09 03:10:28,865 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2025-01-09 03:10:28,867 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2025-01-09 03:10:28,868 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-01-09 03:10:28,868 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-01-09 03:10:28,868 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-09 03:10:28,933 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 03:10:28,933 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 03:10:28,933 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 03:10:28,934 INFO L158 Benchmark]: Toolchain (without parser) took 5036.95ms. Allocated memory is still 142.6MB. Free memory was 107.6MB in the beginning and 77.6MB in the end (delta: 30.0MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. [2025-01-09 03:10:28,934 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 201.3MB. Free memory is still 126.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 03:10:28,934 INFO L158 Benchmark]: CACSL2BoogieTranslator took 178.95ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 95.6MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 03:10:28,934 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.61ms. Allocated memory is still 142.6MB. Free memory was 95.6MB in the beginning and 94.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 03:10:28,934 INFO L158 Benchmark]: Boogie Preprocessor took 33.06ms. Allocated memory is still 142.6MB. Free memory was 94.5MB in the beginning and 93.8MB in the end (delta: 629.3kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 03:10:28,934 INFO L158 Benchmark]: RCFGBuilder took 226.28ms. Allocated memory is still 142.6MB. Free memory was 93.8MB in the beginning and 82.2MB in the end (delta: 11.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 03:10:28,934 INFO L158 Benchmark]: TraceAbstraction took 4493.76ms. Allocated memory is still 142.6MB. Free memory was 81.1MB in the beginning and 83.0MB in the end (delta: -1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 03:10:28,935 INFO L158 Benchmark]: Witness Printer took 74.32ms. Allocated memory is still 142.6MB. Free memory was 83.0MB in the beginning and 77.6MB in the end (delta: 5.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 03:10:28,935 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 201.3MB. Free memory is still 126.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 178.95ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 95.6MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.61ms. Allocated memory is still 142.6MB. Free memory was 95.6MB in the beginning and 94.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.06ms. Allocated memory is still 142.6MB. Free memory was 94.5MB in the beginning and 93.8MB in the end (delta: 629.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 226.28ms. Allocated memory is still 142.6MB. Free memory was 93.8MB in the beginning and 82.2MB in the end (delta: 11.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4493.76ms. Allocated memory is still 142.6MB. Free memory was 81.1MB in the beginning and 83.0MB in the end (delta: -1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 74.32ms. Allocated memory is still 142.6MB. Free memory was 83.0MB in the beginning and 77.6MB in the end (delta: 5.4MB). There was no memory consumed. Max. memory is 16.1GB. * 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, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.3s, OverallIterations: 5, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 73 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 72 mSDsluCounter, 482 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 392 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 585 IncrementalHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 90 mSDtfsCounter, 585 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 231 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 1.3s 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, 1.5s InterpolantComputationTime, 254 NumberOfCodeBlocks, 254 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 260 ConstructedInterpolants, 3 QuantifiedInterpolants, 1116 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]: Loop Invariant Derived loop invariant: ((((((Y <= 5) && ((((((__int128) X * y) * 2) + X) + v) == ((((__int128) Y * x) * 2) + ((long long) 2 * Y)))) && (X <= 5)) && (0 <= Y)) && (0 <= X)) && (((((__int128) X * y) + y) == ((__int128) x * y)) || (x < ((long long) X + 1)))) RESULT: Ultimate proved your program to be correct! [2025-01-09 03:10:28,955 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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