./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-95.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_fillercode_fillercodestructure_filler-pr-ci_file-95.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 25ecd9f27c7eddb672dd3b56c4cfb64ec494cf273e23672d850625b14b107c83 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 11:11:20,576 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 11:11:20,642 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 11:11:20,647 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 11:11:20,648 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 11:11:20,670 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 11:11:20,672 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 11:11:20,672 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 11:11:20,672 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 11:11:20,673 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 11:11:20,673 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 11:11:20,673 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 11:11:20,674 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 11:11:20,674 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 11:11:20,674 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 11:11:20,675 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 11:11:20,676 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 11:11:20,676 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 11:11:20,676 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 11:11:20,676 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 11:11:20,676 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 11:11:20,676 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 11:11:20,676 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 11:11:20,676 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 11:11:20,676 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 11:11:20,676 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 11:11:20,676 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 11:11:20,676 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 11:11:20,677 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 11:11:20,677 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 11:11:20,677 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 11:11:20,677 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 11:11:20,677 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 11:11:20,677 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 11:11:20,677 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 11:11:20,677 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 11:11:20,677 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 11:11:20,678 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 11:11:20,678 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 11:11:20,678 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 11:11:20,678 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 11:11:20,678 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 11:11:20,678 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 11:11:20,678 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 11:11:20,678 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 11:11:20,678 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 11:11:20,678 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 11:11:20,678 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 11:11:20,678 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 -> 25ecd9f27c7eddb672dd3b56c4cfb64ec494cf273e23672d850625b14b107c83 [2025-01-09 11:11:20,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 11:11:20,910 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 11:11:20,914 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 11:11:20,915 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 11:11:20,915 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 11:11:20,916 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-95.i [2025-01-09 11:11:22,039 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/83dda1225/c3ec7627aa7a4f27b259d3795b4d896f/FLAG9fd1098c0 [2025-01-09 11:11:22,266 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 11:11:22,266 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-95.i [2025-01-09 11:11:22,273 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/83dda1225/c3ec7627aa7a4f27b259d3795b4d896f/FLAG9fd1098c0 [2025-01-09 11:11:22,603 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/83dda1225/c3ec7627aa7a4f27b259d3795b4d896f [2025-01-09 11:11:22,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 11:11:22,606 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 11:11:22,607 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 11:11:22,607 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 11:11:22,613 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 11:11:22,617 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 11:11:22" (1/1) ... [2025-01-09 11:11:22,618 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5126683a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:11:22, skipping insertion in model container [2025-01-09 11:11:22,618 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 11:11:22" (1/1) ... [2025-01-09 11:11:22,645 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 11:11:22,760 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_fillercode_fillercodestructure_filler-pr-ci_file-95.i[919,932] [2025-01-09 11:11:22,826 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 11:11:22,842 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 11:11:22,851 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_fillercode_fillercodestructure_filler-pr-ci_file-95.i[919,932] [2025-01-09 11:11:22,888 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 11:11:22,904 INFO L204 MainTranslator]: Completed translation [2025-01-09 11:11:22,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:11:22 WrapperNode [2025-01-09 11:11:22,907 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 11:11:22,908 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 11:11:22,908 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 11:11:22,908 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 11:11:22,914 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:11:22" (1/1) ... [2025-01-09 11:11:22,924 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:11:22" (1/1) ... [2025-01-09 11:11:22,960 INFO L138 Inliner]: procedures = 26, calls = 38, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 210 [2025-01-09 11:11:22,965 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 11:11:22,965 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 11:11:22,965 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 11:11:22,965 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 11:11:22,973 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:11:22" (1/1) ... [2025-01-09 11:11:22,974 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:11:22" (1/1) ... [2025-01-09 11:11:22,976 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:11:22" (1/1) ... [2025-01-09 11:11:22,991 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 11:11:22,991 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:11:22" (1/1) ... [2025-01-09 11:11:22,991 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:11:22" (1/1) ... [2025-01-09 11:11:22,998 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:11:22" (1/1) ... [2025-01-09 11:11:22,999 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:11:22" (1/1) ... [2025-01-09 11:11:23,003 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:11:22" (1/1) ... [2025-01-09 11:11:23,008 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:11:22" (1/1) ... [2025-01-09 11:11:23,010 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:11:22" (1/1) ... [2025-01-09 11:11:23,016 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 11:11:23,017 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 11:11:23,017 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 11:11:23,017 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 11:11:23,017 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:11:22" (1/1) ... [2025-01-09 11:11:23,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 11:11:23,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 11:11:23,045 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 11:11:23,048 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 11:11:23,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 11:11:23,067 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 11:11:23,067 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 11:11:23,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 11:11:23,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 11:11:23,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 11:11:23,140 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 11:11:23,141 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 11:11:23,447 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2025-01-09 11:11:23,448 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 11:11:23,455 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 11:11:23,456 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 11:11:23,456 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 11:11:23 BoogieIcfgContainer [2025-01-09 11:11:23,456 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 11:11:23,457 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 11:11:23,458 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 11:11:23,461 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 11:11:23,461 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 11:11:22" (1/3) ... [2025-01-09 11:11:23,461 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6967af1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 11:11:23, skipping insertion in model container [2025-01-09 11:11:23,461 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:11:22" (2/3) ... [2025-01-09 11:11:23,461 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6967af1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 11:11:23, skipping insertion in model container [2025-01-09 11:11:23,462 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 11:11:23" (3/3) ... [2025-01-09 11:11:23,464 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-ci_file-95.i [2025-01-09 11:11:23,478 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 11:11:23,480 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodestructure_filler-pr-ci_file-95.i that has 2 procedures, 92 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 11:11:23,533 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 11:11:23,544 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;@72ef5ee1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 11:11:23,544 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 11:11:23,547 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 64 states have (on average 1.46875) internal successors, (94), 65 states have internal predecessors, (94), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2025-01-09 11:11:23,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2025-01-09 11:11:23,558 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 11:11:23,559 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 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, 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 11:11:23,560 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 11:11:23,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 11:11:23,564 INFO L85 PathProgramCache]: Analyzing trace with hash 520283015, now seen corresponding path program 1 times [2025-01-09 11:11:23,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 11:11:23,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441369364] [2025-01-09 11:11:23,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 11:11:23,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 11:11:23,652 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-01-09 11:11:23,674 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-01-09 11:11:23,675 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 11:11:23,675 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 11:11:23,841 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 1152 trivial. 0 not checked. [2025-01-09 11:11:23,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 11:11:23,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441369364] [2025-01-09 11:11:23,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441369364] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 11:11:23,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568203732] [2025-01-09 11:11:23,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 11:11:23,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 11:11:23,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 11:11:23,846 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 11:11:23,848 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 11:11:23,925 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-01-09 11:11:23,983 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-01-09 11:11:23,983 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 11:11:23,983 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 11:11:23,985 INFO L256 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 11:11:23,994 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 11:11:24,010 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 1152 trivial. 0 not checked. [2025-01-09 11:11:24,010 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 11:11:24,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [568203732] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 11:11:24,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 11:11:24,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 11:11:24,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510672787] [2025-01-09 11:11:24,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 11:11:24,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 11:11:24,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 11:11:24,032 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 11:11:24,033 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 11:11:24,036 INFO L87 Difference]: Start difference. First operand has 92 states, 64 states have (on average 1.46875) internal successors, (94), 65 states have internal predecessors, (94), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 2 states have call successors, (25) [2025-01-09 11:11:24,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 11:11:24,060 INFO L93 Difference]: Finished difference Result 177 states and 306 transitions. [2025-01-09 11:11:24,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 11:11:24,062 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 2 states have call successors, (25) Word has length 168 [2025-01-09 11:11:24,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 11:11:24,067 INFO L225 Difference]: With dead ends: 177 [2025-01-09 11:11:24,067 INFO L226 Difference]: Without dead ends: 88 [2025-01-09 11:11:24,070 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 169 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 11:11:24,071 INFO L435 NwaCegarLoop]: 136 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, 136 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 11:11:24,072 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 11:11:24,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2025-01-09 11:11:24,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2025-01-09 11:11:24,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 61 states have (on average 1.4098360655737705) internal successors, (86), 61 states have internal predecessors, (86), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2025-01-09 11:11:24,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 136 transitions. [2025-01-09 11:11:24,104 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 136 transitions. Word has length 168 [2025-01-09 11:11:24,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 11:11:24,104 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 136 transitions. [2025-01-09 11:11:24,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 2 states have call successors, (25) [2025-01-09 11:11:24,104 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 136 transitions. [2025-01-09 11:11:24,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2025-01-09 11:11:24,107 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 11:11:24,107 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 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, 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 11:11:24,114 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 11:11:24,308 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 11:11:24,308 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 11:11:24,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 11:11:24,309 INFO L85 PathProgramCache]: Analyzing trace with hash 82911761, now seen corresponding path program 1 times [2025-01-09 11:11:24,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 11:11:24,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554631125] [2025-01-09 11:11:24,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 11:11:24,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 11:11:24,328 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-01-09 11:11:24,363 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-01-09 11:11:24,363 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 11:11:24,363 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 11:11:24,523 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2025-01-09 11:11:24,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 11:11:24,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554631125] [2025-01-09 11:11:24,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554631125] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 11:11:24,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 11:11:24,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 11:11:24,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321027001] [2025-01-09 11:11:24,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 11:11:24,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 11:11:24,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 11:11:24,526 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 11:11:24,527 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 11:11:24,528 INFO L87 Difference]: Start difference. First operand 88 states and 136 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2025-01-09 11:11:24,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 11:11:24,586 INFO L93 Difference]: Finished difference Result 221 states and 339 transitions. [2025-01-09 11:11:24,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 11:11:24,587 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 168 [2025-01-09 11:11:24,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 11:11:24,591 INFO L225 Difference]: With dead ends: 221 [2025-01-09 11:11:24,591 INFO L226 Difference]: Without dead ends: 136 [2025-01-09 11:11:24,592 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 11:11:24,595 INFO L435 NwaCegarLoop]: 163 mSDtfsCounter, 68 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 11:11:24,595 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 281 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 11:11:24,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2025-01-09 11:11:24,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 133. [2025-01-09 11:11:24,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 97 states have (on average 1.3917525773195876) internal successors, (135), 98 states have internal predecessors, (135), 33 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 32 states have call predecessors, (33), 33 states have call successors, (33) [2025-01-09 11:11:24,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 201 transitions. [2025-01-09 11:11:24,611 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 201 transitions. Word has length 168 [2025-01-09 11:11:24,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 11:11:24,612 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 201 transitions. [2025-01-09 11:11:24,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2025-01-09 11:11:24,612 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 201 transitions. [2025-01-09 11:11:24,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2025-01-09 11:11:24,613 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 11:11:24,613 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 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, 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 11:11:24,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 11:11:24,614 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 11:11:24,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 11:11:24,614 INFO L85 PathProgramCache]: Analyzing trace with hash 623808565, now seen corresponding path program 1 times [2025-01-09 11:11:24,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 11:11:24,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888928673] [2025-01-09 11:11:24,615 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 11:11:24,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 11:11:24,645 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 169 statements into 1 equivalence classes. [2025-01-09 11:11:24,770 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 169 of 169 statements. [2025-01-09 11:11:24,770 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 11:11:24,770 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat