./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem15_label51.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d 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/eca-rers2012/Problem15_label51.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 c46b185dd5ee874df2e533f66a394d9513c1dce7acccd5f6a4ca25ab8c85844c --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 18:02:25,766 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 18:02:25,838 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-07 18:02:25,845 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 18:02:25,848 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 18:02:25,877 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 18:02:25,878 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 18:02:25,878 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 18:02:25,878 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 18:02:25,879 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 18:02:25,879 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 18:02:25,880 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 18:02:25,880 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 18:02:25,880 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 18:02:25,881 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 18:02:25,881 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 18:02:25,881 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 18:02:25,881 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 18:02:25,881 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-07 18:02:25,881 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 18:02:25,881 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 18:02:25,881 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 18:02:25,882 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 18:02:25,882 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 18:02:25,882 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 18:02:25,882 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 18:02:25,882 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 18:02:25,882 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 18:02:25,882 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 18:02:25,883 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 18:02:25,883 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 18:02:25,883 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 18:02:25,883 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 18:02:25,884 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 18:02:25,884 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 18:02:25,884 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 18:02:25,884 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 18:02:25,884 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-07 18:02:25,884 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-07 18:02:25,884 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 18:02:25,884 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 18:02:25,885 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 18:02:25,885 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 18:02:25,885 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 -> c46b185dd5ee874df2e533f66a394d9513c1dce7acccd5f6a4ca25ab8c85844c [2025-02-07 18:02:26,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 18:02:26,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 18:02:26,176 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 18:02:26,178 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 18:02:26,178 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 18:02:26,180 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem15_label51.c [2025-02-07 18:02:27,474 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5370a8c77/835b0b8826084b7493b4189ac6b15346/FLAGab4ebfdd5 [2025-02-07 18:02:27,862 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 18:02:27,862 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label51.c [2025-02-07 18:02:27,882 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5370a8c77/835b0b8826084b7493b4189ac6b15346/FLAGab4ebfdd5 [2025-02-07 18:02:27,902 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5370a8c77/835b0b8826084b7493b4189ac6b15346 [2025-02-07 18:02:27,904 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 18:02:27,906 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 18:02:27,907 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 18:02:27,907 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 18:02:27,910 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 18:02:27,911 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 06:02:27" (1/1) ... [2025-02-07 18:02:27,913 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c2b0be7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:02:27, skipping insertion in model container [2025-02-07 18:02:27,913 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 06:02:27" (1/1) ... [2025-02-07 18:02:27,965 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 18:02:28,112 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/eca-rers2012/Problem15_label51.c[2122,2135] [2025-02-07 18:02:28,444 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 18:02:28,455 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 18:02:28,469 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/eca-rers2012/Problem15_label51.c[2122,2135] [2025-02-07 18:02:28,639 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 18:02:28,654 INFO L204 MainTranslator]: Completed translation [2025-02-07 18:02:28,655 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:02:28 WrapperNode [2025-02-07 18:02:28,655 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 18:02:28,656 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 18:02:28,656 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 18:02:28,657 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 18:02:28,662 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:02:28" (1/1) ... [2025-02-07 18:02:28,688 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:02:28" (1/1) ... [2025-02-07 18:02:28,871 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1757 [2025-02-07 18:02:28,871 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 18:02:28,872 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 18:02:28,872 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 18:02:28,872 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 18:02:28,879 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:02:28" (1/1) ... [2025-02-07 18:02:28,879 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:02:28" (1/1) ... [2025-02-07 18:02:28,903 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:02:28" (1/1) ... [2025-02-07 18:02:29,012 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]. [2025-02-07 18:02:29,013 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:02:28" (1/1) ... [2025-02-07 18:02:29,013 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:02:28" (1/1) ... [2025-02-07 18:02:29,077 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:02:28" (1/1) ... [2025-02-07 18:02:29,095 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:02:28" (1/1) ... [2025-02-07 18:02:29,120 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:02:28" (1/1) ... [2025-02-07 18:02:29,133 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:02:28" (1/1) ... [2025-02-07 18:02:29,171 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 18:02:29,173 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 18:02:29,174 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 18:02:29,174 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 18:02:29,175 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:02:28" (1/1) ... [2025-02-07 18:02:29,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 18:02:29,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 18:02:29,204 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) [2025-02-07 18:02:29,207 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 [2025-02-07 18:02:29,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 18:02:29,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-07 18:02:29,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 18:02:29,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 18:02:29,294 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 18:02:29,296 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 18:02:31,861 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1665: havoc calculate_output_#t~ret7#1;main_#t~ret9#1 := calculate_output_#res#1;havoc calculate_output_#t~ret7#1, calculate_output_~input#1;havoc calculate_output_#in~input#1;assume { :end_inline_calculate_output } true;assume -2147483648 <= main_#t~ret9#1 && main_#t~ret9#1 <= 2147483647;main_~output~0#1 := main_#t~ret9#1;havoc main_~input~0#1;havoc main_#t~ret9#1; [2025-02-07 18:02:31,862 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1665-2: calculate_output_#t~ret7#1 := calculate_output2_#res#1;havoc calculate_output2_~input#1;havoc calculate_output2_#in~input#1;assume { :end_inline_calculate_output2 } true;assume -2147483648 <= calculate_output_#t~ret7#1 && calculate_output_#t~ret7#1 <= 2147483647;calculate_output_#res#1 := calculate_output_#t~ret7#1;havoc calculate_output_#t~ret7#1; [2025-02-07 18:02:32,006 INFO L? ?]: Removed 477 outVars from TransFormulas that were not future-live. [2025-02-07 18:02:32,006 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 18:02:32,034 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 18:02:32,038 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 18:02:32,039 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:02:32 BoogieIcfgContainer [2025-02-07 18:02:32,039 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 18:02:32,041 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 18:02:32,042 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 18:02:32,047 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 18:02:32,047 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 06:02:27" (1/3) ... [2025-02-07 18:02:32,048 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3db597d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 06:02:32, skipping insertion in model container [2025-02-07 18:02:32,048 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:02:28" (2/3) ... [2025-02-07 18:02:32,048 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3db597d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 06:02:32, skipping insertion in model container [2025-02-07 18:02:32,048 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:02:32" (3/3) ... [2025-02-07 18:02:32,049 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem15_label51.c [2025-02-07 18:02:32,066 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 18:02:32,068 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem15_label51.c that has 1 procedures, 363 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-07 18:02:32,140 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 18:02:32,151 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;@3deadc58, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 18:02:32,152 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-07 18:02:32,159 INFO L276 IsEmpty]: Start isEmpty. Operand has 363 states, 358 states have (on average 1.9134078212290502) internal successors, (685), 362 states have internal predecessors, (685), 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) [2025-02-07 18:02:32,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-02-07 18:02:32,164 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 18:02:32,165 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 18:02:32,165 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 18:02:32,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 18:02:32,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1607425837, now seen corresponding path program 1 times [2025-02-07 18:02:32,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 18:02:32,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220568439] [2025-02-07 18:02:32,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 18:02:32,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 18:02:32,245 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-07 18:02:32,265 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-07 18:02:32,266 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 18:02:32,266 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 18:02:32,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 18:02:32,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 18:02:32,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220568439] [2025-02-07 18:02:32,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220568439] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 18:02:32,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 18:02:32,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-07 18:02:32,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810604343] [2025-02-07 18:02:32,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 18:02:32,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-07 18:02:32,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 18:02:32,344 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-07 18:02:32,346 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-07 18:02:32,349 INFO L87 Difference]: Start difference. First operand has 363 states, 358 states have (on average 1.9134078212290502) internal successors, (685), 362 states have internal predecessors, (685), 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) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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) [2025-02-07 18:02:32,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 18:02:32,399 INFO L93 Difference]: Finished difference Result 719 states and 1362 transitions. [2025-02-07 18:02:32,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-07 18:02:32,404 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2025-02-07 18:02:32,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 18:02:32,410 INFO L225 Difference]: With dead ends: 719 [2025-02-07 18:02:32,410 INFO L226 Difference]: Without dead ends: 16 [2025-02-07 18:02:32,414 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-07 18:02:32,417 INFO L435 NwaCegarLoop]: 622 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, 622 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 [2025-02-07 18:02:32,419 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-07 18:02:32,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2025-02-07 18:02:32,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2025-02-07 18:02:32,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.0) internal successors, (15), 15 states have internal predecessors, (15), 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) [2025-02-07 18:02:32,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2025-02-07 18:02:32,454 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 15 [2025-02-07 18:02:32,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 18:02:32,455 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2025-02-07 18:02:32,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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) [2025-02-07 18:02:32,456 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2025-02-07 18:02:32,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-02-07 18:02:32,456 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 18:02:32,456 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 18:02:32,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-07 18:02:32,457 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 18:02:32,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 18:02:32,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1675602291, now seen corresponding path program 1 times [2025-02-07 18:02:32,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 18:02:32,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77394952] [2025-02-07 18:02:32,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 18:02:32,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 18:02:32,472 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-07 18:02:32,493 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-07 18:02:32,494 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 18:02:32,494 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 18:02:32,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 18:02:32,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 18:02:32,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77394952] [2025-02-07 18:02:32,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77394952] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 18:02:32,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 18:02:32,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-07 18:02:32,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087562178] [2025-02-07 18:02:32,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 18:02:32,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-07 18:02:32,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 18:02:32,617 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-07 18:02:32,617 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-07 18:02:32,618 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 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) [2025-02-07 18:02:32,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 18:02:32,634 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2025-02-07 18:02:32,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-07 18:02:32,635 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2025-02-07 18:02:32,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 18:02:32,635 INFO L225 Difference]: With dead ends: 16 [2025-02-07 18:02:32,635 INFO L226 Difference]: Without dead ends: 0 [2025-02-07 18:02:32,636 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-07 18:02:32,636 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-07 18:02:32,638 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-07 18:02:32,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-02-07 18:02:32,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-02-07 18:02:32,640 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) [2025-02-07 18:02:32,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-02-07 18:02:32,640 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2025-02-07 18:02:32,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 18:02:32,640 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-07 18:02:32,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 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) [2025-02-07 18:02:32,640 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-02-07 18:02:32,641 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-02-07 18:02:32,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-07 18:02:32,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-07 18:02:32,647 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-07 18:02:32,649 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-02-07 18:02:32,661 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-07 18:02:32,676 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 06:02:32 BoogieIcfgContainer [2025-02-07 18:02:32,677 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-07 18:02:32,678 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-07 18:02:32,679 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-07 18:02:32,679 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-07 18:02:32,679 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:02:32" (3/4) ... [2025-02-07 18:02:32,682 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-07 18:02:32,708 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2025-02-07 18:02:32,710 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-02-07 18:02:32,713 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-07 18:02:32,715 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-07 18:02:32,890 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-07 18:02:32,890 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-07 18:02:32,890 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-07 18:02:32,892 INFO L158 Benchmark]: Toolchain (without parser) took 4985.49ms. Allocated memory was 167.8MB in the beginning and 285.2MB in the end (delta: 117.4MB). Free memory was 124.1MB in the beginning and 158.8MB in the end (delta: -34.7MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. [2025-02-07 18:02:32,893 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 192.9MB. Free memory is still 119.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:02:32,894 INFO L158 Benchmark]: CACSL2BoogieTranslator took 748.97ms. Allocated memory is still 167.8MB. Free memory was 123.8MB in the beginning and 51.8MB in the end (delta: 72.0MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2025-02-07 18:02:32,895 INFO L158 Benchmark]: Boogie Procedure Inliner took 214.88ms. Allocated memory is still 167.8MB. Free memory was 51.8MB in the beginning and 91.9MB in the end (delta: -40.2MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2025-02-07 18:02:32,896 INFO L158 Benchmark]: Boogie Preprocessor took 299.59ms. Allocated memory is still 167.8MB. Free memory was 91.9MB in the beginning and 96.9MB in the end (delta: -4.9MB). Peak memory consumption was 48.7MB. Max. memory is 16.1GB. [2025-02-07 18:02:32,897 INFO L158 Benchmark]: IcfgBuilder took 2866.39ms. Allocated memory was 167.8MB in the beginning and 285.2MB in the end (delta: 117.4MB). Free memory was 96.9MB in the beginning and 213.6MB in the end (delta: -116.7MB). Peak memory consumption was 164.1MB. Max. memory is 16.1GB. [2025-02-07 18:02:32,897 INFO L158 Benchmark]: TraceAbstraction took 635.94ms. Allocated memory is still 285.2MB. Free memory was 213.6MB in the beginning and 181.1MB in the end (delta: 32.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-07 18:02:32,897 INFO L158 Benchmark]: Witness Printer took 211.84ms. Allocated memory is still 285.2MB. Free memory was 181.1MB in the beginning and 158.8MB in the end (delta: 22.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-07 18:02:32,900 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 192.9MB. Free memory is still 119.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 748.97ms. Allocated memory is still 167.8MB. Free memory was 123.8MB in the beginning and 51.8MB in the end (delta: 72.0MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 214.88ms. Allocated memory is still 167.8MB. Free memory was 51.8MB in the beginning and 91.9MB in the end (delta: -40.2MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 299.59ms. Allocated memory is still 167.8MB. Free memory was 91.9MB in the beginning and 96.9MB in the end (delta: -4.9MB). Peak memory consumption was 48.7MB. Max. memory is 16.1GB. * IcfgBuilder took 2866.39ms. Allocated memory was 167.8MB in the beginning and 285.2MB in the end (delta: 117.4MB). Free memory was 96.9MB in the beginning and 213.6MB in the end (delta: -116.7MB). Peak memory consumption was 164.1MB. Max. memory is 16.1GB. * TraceAbstraction took 635.94ms. Allocated memory is still 285.2MB. Free memory was 213.6MB in the beginning and 181.1MB in the end (delta: 32.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 211.84ms. Allocated memory is still 285.2MB. Free memory was 181.1MB in the beginning and 158.8MB in the end (delta: 22.3MB). Peak memory consumption was 16.8MB. 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: 65]: 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 1 procedures, 363 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 625 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 625 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=363occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 54 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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: 1776]: Location Invariant Derived location invariant: (a2 == 1) RESULT: Ultimate proved your program to be correct! [2025-02-07 18:02:32,920 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