./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-54.i --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/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-54.i -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 7721a739ef5faac033f6706f03843ab5e371f7e9c8f0302a327b5f890c5cbaa4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 12:43:27,728 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 12:43:27,801 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 12:43:27,807 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 12:43:27,807 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 12:43:27,835 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 12:43:27,837 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 12:43:27,837 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 12:43:27,837 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 12:43:27,838 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 12:43:27,838 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 12:43:27,839 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 12:43:27,839 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 12:43:27,839 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 12:43:27,839 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 12:43:27,839 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 12:43:27,840 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 12:43:27,840 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 12:43:27,840 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 12:43:27,840 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 12:43:27,840 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 12:43:27,840 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 12:43:27,840 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 12:43:27,840 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 12:43:27,840 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 12:43:27,840 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 12:43:27,841 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 12:43:27,841 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 12:43:27,841 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 12:43:27,841 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 12:43:27,841 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 12:43:27,841 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 12:43:27,841 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 12:43:27,841 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 12:43:27,841 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 12:43:27,841 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 12:43:27,841 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 12:43:27,841 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 12:43:27,841 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 12:43:27,841 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 12:43:27,842 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 12:43:27,842 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 12:43:27,842 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 12:43:27,842 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 12:43:27,842 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 12:43:27,842 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 12:43:27,842 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 12:43:27,842 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 12:43:27,842 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 -> 7721a739ef5faac033f6706f03843ab5e371f7e9c8f0302a327b5f890c5cbaa4 [2025-01-09 12:43:28,139 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 12:43:28,147 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 12:43:28,149 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 12:43:28,150 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 12:43:28,151 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 12:43:28,152 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-54.i [2025-01-09 12:43:29,450 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/de35a7aa8/a59df3bd208f4f6ab9d1332c99f3aff6/FLAGdc33af53a [2025-01-09 12:43:29,688 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 12:43:29,689 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-54.i [2025-01-09 12:43:29,698 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/de35a7aa8/a59df3bd208f4f6ab9d1332c99f3aff6/FLAGdc33af53a [2025-01-09 12:43:29,715 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/de35a7aa8/a59df3bd208f4f6ab9d1332c99f3aff6 [2025-01-09 12:43:29,717 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 12:43:29,719 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 12:43:29,720 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 12:43:29,720 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 12:43:29,724 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 12:43:29,726 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 12:43:29" (1/1) ... [2025-01-09 12:43:29,727 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@799be85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:29, skipping insertion in model container [2025-01-09 12:43:29,727 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 12:43:29" (1/1) ... [2025-01-09 12:43:29,743 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 12:43:29,855 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/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-54.i[916,929] [2025-01-09 12:43:29,887 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 12:43:29,895 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 12:43:29,903 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/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-54.i[916,929] [2025-01-09 12:43:29,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 12:43:29,943 INFO L204 MainTranslator]: Completed translation [2025-01-09 12:43:29,944 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:29 WrapperNode [2025-01-09 12:43:29,944 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 12:43:29,945 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 12:43:29,945 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 12:43:29,945 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 12:43:29,950 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:29" (1/1) ... [2025-01-09 12:43:29,962 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:29" (1/1) ... [2025-01-09 12:43:29,993 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 100 [2025-01-09 12:43:29,997 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 12:43:29,997 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 12:43:29,997 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 12:43:29,997 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 12:43:30,012 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:29" (1/1) ... [2025-01-09 12:43:30,012 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:29" (1/1) ... [2025-01-09 12:43:30,014 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:29" (1/1) ... [2025-01-09 12:43:30,033 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 12:43:30,035 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:29" (1/1) ... [2025-01-09 12:43:30,036 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:29" (1/1) ... [2025-01-09 12:43:30,042 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:29" (1/1) ... [2025-01-09 12:43:30,044 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:29" (1/1) ... [2025-01-09 12:43:30,050 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:29" (1/1) ... [2025-01-09 12:43:30,051 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:29" (1/1) ... [2025-01-09 12:43:30,055 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:29" (1/1) ... [2025-01-09 12:43:30,057 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 12:43:30,059 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 12:43:30,059 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 12:43:30,059 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 12:43:30,062 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:29" (1/1) ... [2025-01-09 12:43:30,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 12:43:30,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 12:43:30,092 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 12:43:30,098 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 12:43:30,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 12:43:30,115 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 12:43:30,115 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 12:43:30,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 12:43:30,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 12:43:30,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 12:43:30,183 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 12:43:30,184 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 12:43:30,405 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2025-01-09 12:43:30,405 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 12:43:30,414 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 12:43:30,414 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 12:43:30,414 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 12:43:30 BoogieIcfgContainer [2025-01-09 12:43:30,414 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 12:43:30,416 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 12:43:30,416 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 12:43:30,419 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 12:43:30,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 12:43:29" (1/3) ... [2025-01-09 12:43:30,420 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d5e9d13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 12:43:30, skipping insertion in model container [2025-01-09 12:43:30,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:43:29" (2/3) ... [2025-01-09 12:43:30,420 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d5e9d13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 12:43:30, skipping insertion in model container [2025-01-09 12:43:30,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 12:43:30" (3/3) ... [2025-01-09 12:43:30,421 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-54.i [2025-01-09 12:43:30,431 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 12:43:30,432 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_no-floats_file-54.i that has 2 procedures, 48 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 12:43:30,471 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 12:43:30,481 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;@48b0d22e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 12:43:30,481 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 12:43:30,485 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 32 states have internal predecessors, (42), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2025-01-09 12:43:30,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2025-01-09 12:43:30,493 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 12:43:30,494 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 12:43:30,494 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 12:43:30,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 12:43:30,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1258564681, now seen corresponding path program 1 times [2025-01-09 12:43:30,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 12:43:30,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177185715] [2025-01-09 12:43:30,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 12:43:30,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 12:43:30,585 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-01-09 12:43:30,601 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-01-09 12:43:30,602 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 12:43:30,602 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 12:43:30,715 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2025-01-09 12:43:30,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 12:43:30,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177185715] [2025-01-09 12:43:30,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177185715] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 12:43:30,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458654376] [2025-01-09 12:43:30,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 12:43:30,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 12:43:30,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 12:43:30,719 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 12:43:30,720 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 12:43:30,785 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-01-09 12:43:30,844 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-01-09 12:43:30,844 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 12:43:30,844 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 12:43:30,846 INFO L256 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 12:43:30,852 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 12:43:30,875 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2025-01-09 12:43:30,875 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 12:43:30,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1458654376] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 12:43:30,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 12:43:30,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 12:43:30,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120284474] [2025-01-09 12:43:30,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 12:43:30,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 12:43:30,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 12:43:30,899 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 12:43:30,900 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 12:43:30,902 INFO L87 Difference]: Start difference. First operand has 48 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 32 states have internal predecessors, (42), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2025-01-09 12:43:30,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 12:43:30,920 INFO L93 Difference]: Finished difference Result 90 states and 149 transitions. [2025-01-09 12:43:30,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 12:43:30,921 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 91 [2025-01-09 12:43:30,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 12:43:30,926 INFO L225 Difference]: With dead ends: 90 [2025-01-09 12:43:30,926 INFO L226 Difference]: Without dead ends: 45 [2025-01-09 12:43:30,928 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 92 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 12:43:30,931 INFO L435 NwaCegarLoop]: 65 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, 65 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 12:43:30,932 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 12:43:30,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2025-01-09 12:43:30,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2025-01-09 12:43:30,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 29 states have internal predecessors, (37), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2025-01-09 12:43:30,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 65 transitions. [2025-01-09 12:43:30,960 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 65 transitions. Word has length 91 [2025-01-09 12:43:30,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 12:43:30,961 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 65 transitions. [2025-01-09 12:43:30,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2025-01-09 12:43:30,961 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 65 transitions. [2025-01-09 12:43:30,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2025-01-09 12:43:30,964 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 12:43:30,964 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 12:43:30,970 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 12:43:31,165 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 12:43:31,165 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 12:43:31,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 12:43:31,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1264288521, now seen corresponding path program 1 times [2025-01-09 12:43:31,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 12:43:31,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831098781] [2025-01-09 12:43:31,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 12:43:31,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 12:43:31,183 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-01-09 12:43:31,297 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-01-09 12:43:31,298 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 12:43:31,298 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 12:43:33,965 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2025-01-09 12:43:33,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 12:43:33,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831098781] [2025-01-09 12:43:33,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831098781] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 12:43:33,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 12:43:33,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-01-09 12:43:33,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178491031] [2025-01-09 12:43:33,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 12:43:33,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-09 12:43:33,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 12:43:33,969 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-09 12:43:33,969 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2025-01-09 12:43:33,970 INFO L87 Difference]: Start difference. First operand 45 states and 65 transitions. Second operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2025-01-09 12:43:34,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 12:43:34,244 INFO L93 Difference]: Finished difference Result 110 states and 157 transitions. [2025-01-09 12:43:34,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 12:43:34,245 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 91 [2025-01-09 12:43:34,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 12:43:34,247 INFO L225 Difference]: With dead ends: 110 [2025-01-09 12:43:34,247 INFO L226 Difference]: Without dead ends: 68 [2025-01-09 12:43:34,247 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2025-01-09 12:43:34,248 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 26 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 12:43:34,248 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 355 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 12:43:34,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2025-01-09 12:43:34,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 53. [2025-01-09 12:43:34,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 37 states have (on average 1.2432432432432432) internal successors, (46), 37 states have internal predecessors, (46), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2025-01-09 12:43:34,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 74 transitions. [2025-01-09 12:43:34,263 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 74 transitions. Word has length 91 [2025-01-09 12:43:34,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 12:43:34,265 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 74 transitions. [2025-01-09 12:43:34,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2025-01-09 12:43:34,266 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 74 transitions. [2025-01-09 12:43:34,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2025-01-09 12:43:34,267 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 12:43:34,268 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 12:43:34,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 12:43:34,269 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 12:43:34,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 12:43:34,269 INFO L85 PathProgramCache]: Analyzing trace with hash -584230151, now seen corresponding path program 1 times [2025-01-09 12:43:34,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 12:43:34,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245359741] [2025-01-09 12:43:34,269 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 12:43:34,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 12:43:34,285 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-01-09 12:43:34,311 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-01-09 12:43:34,312 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 12:43:34,312 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 12:43:35,654 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2025-01-09 12:43:35,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 12:43:35,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245359741] [2025-01-09 12:43:35,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245359741] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 12:43:35,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 12:43:35,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-01-09 12:43:35,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078739076] [2025-01-09 12:43:35,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 12:43:35,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-09 12:43:35,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 12:43:35,656 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-09 12:43:35,657 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2025-01-09 12:43:35,657 INFO L87 Difference]: Start difference. First operand 53 states and 74 transitions. Second operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2025-01-09 12:43:35,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 12:43:35,919 INFO L93 Difference]: Finished difference Result 149 states and 206 transitions. [2025-01-09 12:43:35,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 12:43:35,919 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 91 [2025-01-09 12:43:35,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 12:43:35,921 INFO L225 Difference]: With dead ends: 149 [2025-01-09 12:43:35,921 INFO L226 Difference]: Without dead ends: 99 [2025-01-09 12:43:35,922 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2025-01-09 12:43:35,922 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 71 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 12:43:35,923 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 448 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 12:43:35,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2025-01-09 12:43:35,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 95. [2025-01-09 12:43:35,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 65 states have (on average 1.2) internal successors, (78), 67 states have internal predecessors, (78), 26 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 24 states have call predecessors, (26), 26 states have call successors, (26) [2025-01-09 12:43:35,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 130 transitions. [2025-01-09 12:43:35,940 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 130 transitions. Word has length 91 [2025-01-09 12:43:35,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 12:43:35,941 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 130 transitions. [2025-01-09 12:43:35,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2025-01-09 12:43:35,941 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 130 transitions. [2025-01-09 12:43:35,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2025-01-09 12:43:35,942 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 12:43:35,942 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 12:43:35,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 12:43:35,943 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 12:43:35,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 12:43:35,943 INFO L85 PathProgramCache]: Analyzing trace with hash 54945451, now seen corresponding path program 1 times [2025-01-09 12:43:35,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 12:43:35,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28330202] [2025-01-09 12:43:35,944 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 12:43:35,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 12:43:35,955 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-01-09 12:43:35,991 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-01-09 12:43:35,992 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 12:43:35,992 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 12:43:36,102 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 15 proven. 24 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2025-01-09 12:43:36,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 12:43:36,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28330202] [2025-01-09 12:43:36,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28330202] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 12:43:36,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [441362709] [2025-01-09 12:43:36,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 12:43:36,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 12:43:36,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 12:43:36,107 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 12:43:36,109 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 12:43:36,149 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-01-09 12:43:36,194 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-01-09 12:43:36,194 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 12:43:36,194 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 12:43:36,195 INFO L256 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-09 12:43:36,198 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 12:43:36,325 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 183 proven. 24 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2025-01-09 12:43:36,326 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 12:43:36,520 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 15 proven. 24 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2025-01-09 12:43:36,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [441362709] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 12:43:36,522 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 12:43:36,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2025-01-09 12:43:36,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155620299] [2025-01-09 12:43:36,523 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 12:43:36,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 12:43:36,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 12:43:36,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 12:43:36,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-01-09 12:43:36,525 INFO L87 Difference]: Start difference. First operand 95 states and 130 transitions. Second operand has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 2 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2025-01-09 12:43:36,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 12:43:36,656 INFO L93 Difference]: Finished difference Result 176 states and 231 transitions. [2025-01-09 12:43:36,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 12:43:36,657 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 2 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 92 [2025-01-09 12:43:36,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 12:43:36,657 INFO L225 Difference]: With dead ends: 176 [2025-01-09 12:43:36,658 INFO L226 Difference]: Without dead ends: 0 [2025-01-09 12:43:36,659 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 181 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2025-01-09 12:43:36,659 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 33 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 12:43:36,659 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 76 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 12:43:36,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-01-09 12:43:36,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-01-09 12:43:36,660 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 12:43:36,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-01-09 12:43:36,661 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 92 [2025-01-09 12:43:36,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 12:43:36,661 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-01-09 12:43:36,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 2 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2025-01-09 12:43:36,661 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-01-09 12:43:36,662 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-01-09 12:43:36,664 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 12:43:36,672 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 12:43:36,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 12:43:36,870 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-01-09 12:43:36,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-01-09 12:43:36,955 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 12:43:36,964 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 12:43:36 BoogieIcfgContainer [2025-01-09 12:43:36,964 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 12:43:36,965 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 12:43:36,965 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 12:43:36,965 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 12:43:36,966 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 12:43:30" (3/4) ... [2025-01-09 12:43:36,967 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-09 12:43:36,971 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2025-01-09 12:43:36,976 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2025-01-09 12:43:36,977 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-01-09 12:43:36,977 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-01-09 12:43:36,977 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-09 12:43:37,056 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 12:43:37,056 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 12:43:37,057 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 12:43:37,058 INFO L158 Benchmark]: Toolchain (without parser) took 7339.22ms. Allocated memory was 142.6MB in the beginning and 419.4MB in the end (delta: 276.8MB). Free memory was 107.1MB in the beginning and 350.5MB in the end (delta: -243.4MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. [2025-01-09 12:43:37,058 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 201.3MB. Free memory is still 126.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 12:43:37,058 INFO L158 Benchmark]: CACSL2BoogieTranslator took 224.13ms. Allocated memory is still 142.6MB. Free memory was 107.1MB in the beginning and 94.3MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 12:43:37,058 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.12ms. Allocated memory is still 142.6MB. Free memory was 94.3MB in the beginning and 92.8MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 12:43:37,058 INFO L158 Benchmark]: Boogie Preprocessor took 61.29ms. Allocated memory is still 142.6MB. Free memory was 92.8MB in the beginning and 89.8MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 12:43:37,059 INFO L158 Benchmark]: RCFGBuilder took 355.57ms. Allocated memory is still 142.6MB. Free memory was 89.8MB in the beginning and 74.1MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 12:43:37,059 INFO L158 Benchmark]: TraceAbstraction took 6548.01ms. Allocated memory was 142.6MB in the beginning and 419.4MB in the end (delta: 276.8MB). Free memory was 74.1MB in the beginning and 358.7MB in the end (delta: -284.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 12:43:37,059 INFO L158 Benchmark]: Witness Printer took 92.40ms. Allocated memory is still 419.4MB. Free memory was 358.7MB in the beginning and 350.5MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 12:43:37,063 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 201.3MB. Free memory is still 126.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 224.13ms. Allocated memory is still 142.6MB. Free memory was 107.1MB in the beginning and 94.3MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.12ms. Allocated memory is still 142.6MB. Free memory was 94.3MB in the beginning and 92.8MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.29ms. Allocated memory is still 142.6MB. Free memory was 92.8MB in the beginning and 89.8MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 355.57ms. Allocated memory is still 142.6MB. Free memory was 89.8MB in the beginning and 74.1MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6548.01ms. Allocated memory was 142.6MB in the beginning and 419.4MB in the end (delta: 276.8MB). Free memory was 74.1MB in the beginning and 358.7MB in the end (delta: -284.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 92.40ms. Allocated memory is still 419.4MB. Free memory was 358.7MB in the beginning and 350.5MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. 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: 19]: 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 2 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.4s, OverallIterations: 4, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 134 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 130 mSDsluCounter, 944 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 688 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 415 IncrementalHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 256 mSDtfsCounter, 415 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 307 GetRequests, 279 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=95occurred in iteration=3, InterpolantAutomatonStates: 29, 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, 4 MinimizatonAttempts, 19 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 548 NumberOfCodeBlocks, 548 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 633 ConstructedInterpolants, 0 QuantifiedInterpolants, 1352 SizeOfPredicates, 1 NumberOfNonLiveVariables, 436 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 2450/2548 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: 100]: Loop Invariant Derived loop invariant: (var_1_9 == 0) RESULT: Ultimate proved your program to be correct! [2025-01-09 12:43:37,082 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