./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p4.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p4.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2164f122c5c32edee2ede3aaa086ed34ce5834fc0fb4a31a890516c48b14c747 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-16 22:49:31,860 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-16 22:49:31,912 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-16 22:49:31,917 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-16 22:49:31,920 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-16 22:49:31,940 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-16 22:49:31,942 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-16 22:49:31,942 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-16 22:49:31,942 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-16 22:49:31,942 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-16 22:49:31,943 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-16 22:49:31,943 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-16 22:49:31,943 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-16 22:49:31,943 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-16 22:49:31,943 INFO L153 SettingsManager]: * Use SBE=true [2025-03-16 22:49:31,944 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-16 22:49:31,944 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-16 22:49:31,944 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-16 22:49:31,944 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-16 22:49:31,944 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-16 22:49:31,944 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-16 22:49:31,944 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-16 22:49:31,944 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-16 22:49:31,944 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-16 22:49:31,944 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-16 22:49:31,945 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-16 22:49:31,945 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-16 22:49:31,945 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-16 22:49:31,945 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-16 22:49:31,945 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 22:49:31,945 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-16 22:49:31,945 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-16 22:49:31,945 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-16 22:49:31,946 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-16 22:49:31,946 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-16 22:49:31,946 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-16 22:49:31,946 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-16 22:49:31,946 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-16 22:49:31,946 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-16 22:49:31,946 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-16 22:49:31,946 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2164f122c5c32edee2ede3aaa086ed34ce5834fc0fb4a31a890516c48b14c747 [2025-03-16 22:49:32,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-16 22:49:32,183 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-16 22:49:32,184 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-16 22:49:32,186 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-16 22:49:32,186 INFO L274 PluginConnector]: CDTParser initialized [2025-03-16 22:49:32,186 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p4.c [2025-03-16 22:49:33,316 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f14d1cc5/5ae7e6adf8e7492ebf6b981218fb925e/FLAG75b25b15b [2025-03-16 22:49:33,694 INFO L384 CDTParser]: Found 1 translation units. [2025-03-16 22:49:33,695 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p4.c [2025-03-16 22:49:33,710 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f14d1cc5/5ae7e6adf8e7492ebf6b981218fb925e/FLAG75b25b15b [2025-03-16 22:49:33,889 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f14d1cc5/5ae7e6adf8e7492ebf6b981218fb925e [2025-03-16 22:49:33,891 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-16 22:49:33,892 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-16 22:49:33,893 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-16 22:49:33,893 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-16 22:49:33,896 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-16 22:49:33,896 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 10:49:33" (1/1) ... [2025-03-16 22:49:33,896 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@476f081b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:49:33, skipping insertion in model container [2025-03-16 22:49:33,897 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 10:49:33" (1/1) ... [2025-03-16 22:49:33,928 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-16 22:49:34,054 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p4.c[1260,1273] [2025-03-16 22:49:34,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 22:49:34,330 INFO L200 MainTranslator]: Completed pre-run [2025-03-16 22:49:34,337 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p4.c[1260,1273] [2025-03-16 22:49:34,456 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 22:49:34,467 INFO L204 MainTranslator]: Completed translation [2025-03-16 22:49:34,468 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:49:34 WrapperNode [2025-03-16 22:49:34,468 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-16 22:49:34,469 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-16 22:49:34,469 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-16 22:49:34,469 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-16 22:49:34,473 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:49:34" (1/1) ... [2025-03-16 22:49:34,509 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:49:34" (1/1) ... [2025-03-16 22:49:34,810 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 4506 [2025-03-16 22:49:34,811 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-16 22:49:34,811 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-16 22:49:34,811 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-16 22:49:34,811 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-16 22:49:34,818 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:49:34" (1/1) ... [2025-03-16 22:49:34,818 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:49:34" (1/1) ... [2025-03-16 22:49:34,921 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:49:34" (1/1) ... [2025-03-16 22:49:35,074 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-16 22:49:35,077 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:49:34" (1/1) ... [2025-03-16 22:49:35,077 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:49:34" (1/1) ... [2025-03-16 22:49:35,192 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:49:34" (1/1) ... [2025-03-16 22:49:35,209 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:49:34" (1/1) ... [2025-03-16 22:49:35,257 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:49:34" (1/1) ... [2025-03-16 22:49:35,287 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:49:34" (1/1) ... [2025-03-16 22:49:35,364 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-16 22:49:35,366 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-16 22:49:35,366 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-16 22:49:35,366 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-16 22:49:35,367 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:49:34" (1/1) ... [2025-03-16 22:49:35,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 22:49:35,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 22:49:35,393 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-16 22:49:35,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-16 22:49:35,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-16 22:49:35,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-16 22:49:35,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-16 22:49:35,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-16 22:49:35,760 INFO L256 CfgBuilder]: Building ICFG [2025-03-16 22:49:35,762 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-16 22:49:39,570 INFO L? ?]: Removed 2673 outVars from TransFormulas that were not future-live. [2025-03-16 22:49:39,571 INFO L307 CfgBuilder]: Performing block encoding [2025-03-16 22:49:39,711 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-16 22:49:39,711 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-16 22:49:39,712 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 10:49:39 BoogieIcfgContainer [2025-03-16 22:49:39,712 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-16 22:49:39,714 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-16 22:49:39,714 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-16 22:49:39,717 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-16 22:49:39,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 10:49:33" (1/3) ... [2025-03-16 22:49:39,718 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2556549d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 10:49:39, skipping insertion in model container [2025-03-16 22:49:39,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:49:34" (2/3) ... [2025-03-16 22:49:39,718 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2556549d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 10:49:39, skipping insertion in model container [2025-03-16 22:49:39,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 10:49:39" (3/3) ... [2025-03-16 22:49:39,720 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsa16a_p4.c [2025-03-16 22:49:39,733 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-16 22:49:39,735 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.vis_arrays_vsa16a_p4.c that has 1 procedures, 1349 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-16 22:49:39,796 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-16 22:49:39,804 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;@1ad921e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-16 22:49:39,804 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-16 22:49:39,811 INFO L276 IsEmpty]: Start isEmpty. Operand has 1349 states, 1347 states have (on average 1.5003711952487009) internal successors, (2021), 1348 states have internal predecessors, (2021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 22:49:39,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-03-16 22:49:39,816 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 22:49:39,817 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 22:49:39,817 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 22:49:39,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 22:49:39,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1815132278, now seen corresponding path program 1 times [2025-03-16 22:49:39,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 22:49:39,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389269650] [2025-03-16 22:49:39,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 22:49:39,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 22:49:39,920 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-16 22:49:39,988 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-16 22:49:39,989 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 22:49:39,989 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 22:49:40,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 22:49:40,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 22:49:40,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389269650] [2025-03-16 22:49:40,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389269650] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 22:49:40,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 22:49:40,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-16 22:49:40,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153650946] [2025-03-16 22:49:40,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 22:49:40,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-16 22:49:40,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 22:49:40,390 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-16 22:49:40,391 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-16 22:49:40,396 INFO L87 Difference]: Start difference. First operand has 1349 states, 1347 states have (on average 1.5003711952487009) internal successors, (2021), 1348 states have internal predecessors, (2021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 22:49:41,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 22:49:41,052 INFO L93 Difference]: Finished difference Result 2645 states and 3965 transitions. [2025-03-16 22:49:41,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-16 22:49:41,054 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2025-03-16 22:49:41,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 22:49:41,074 INFO L225 Difference]: With dead ends: 2645 [2025-03-16 22:49:41,074 INFO L226 Difference]: Without dead ends: 1349 [2025-03-16 22:49:41,080 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-16 22:49:41,082 INFO L435 NwaCegarLoop]: 1681 mSDtfsCounter, 0 mSDsluCounter, 3357 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5038 SdHoareTripleChecker+Invalid, 1015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-16 22:49:41,084 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5038 Invalid, 1015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1015 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-16 22:49:41,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1349 states. [2025-03-16 22:49:41,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1349 to 1349. [2025-03-16 22:49:41,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1349 states, 1348 states have (on average 1.4985163204747773) internal successors, (2020), 1348 states have internal predecessors, (2020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 22:49:41,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1349 states to 1349 states and 2020 transitions. [2025-03-16 22:49:41,153 INFO L78 Accepts]: Start accepts. Automaton has 1349 states and 2020 transitions. Word has length 44 [2025-03-16 22:49:41,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 22:49:41,154 INFO L471 AbstractCegarLoop]: Abstraction has 1349 states and 2020 transitions. [2025-03-16 22:49:41,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 22:49:41,154 INFO L276 IsEmpty]: Start isEmpty. Operand 1349 states and 2020 transitions. [2025-03-16 22:49:41,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-03-16 22:49:41,156 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 22:49:41,156 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 22:49:41,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-16 22:49:41,157 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 22:49:41,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 22:49:41,158 INFO L85 PathProgramCache]: Analyzing trace with hash -429844420, now seen corresponding path program 1 times [2025-03-16 22:49:41,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 22:49:41,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002148950] [2025-03-16 22:49:41,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 22:49:41,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 22:49:41,190 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-16 22:49:41,211 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-16 22:49:41,212 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 22:49:41,213 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 22:49:41,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 22:49:41,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 22:49:41,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002148950] [2025-03-16 22:49:41,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002148950] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 22:49:41,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 22:49:41,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-16 22:49:41,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842601399] [2025-03-16 22:49:41,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 22:49:41,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-16 22:49:41,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 22:49:41,351 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-16 22:49:41,351 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-16 22:49:41,351 INFO L87 Difference]: Start difference. First operand 1349 states and 2020 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 22:49:41,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 22:49:41,877 INFO L93 Difference]: Finished difference Result 2647 states and 3964 transitions. [2025-03-16 22:49:41,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-16 22:49:41,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2025-03-16 22:49:41,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 22:49:41,882 INFO L225 Difference]: With dead ends: 2647 [2025-03-16 22:49:41,883 INFO L226 Difference]: Without dead ends: 1351 [2025-03-16 22:49:41,885 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-16 22:49:41,886 INFO L435 NwaCegarLoop]: 1681 mSDtfsCounter, 0 mSDsluCounter, 3354 mSDsCounter, 0 mSdLazyCounter, 1018 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5035 SdHoareTripleChecker+Invalid, 1018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-16 22:49:41,886 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5035 Invalid, 1018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1018 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-16 22:49:41,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1351 states. [2025-03-16 22:49:41,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1351 to 1351. [2025-03-16 22:49:41,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1351 states, 1350 states have (on average 1.4977777777777779) internal successors, (2022), 1350 states have internal predecessors, (2022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 22:49:41,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1351 states to 1351 states and 2022 transitions. [2025-03-16 22:49:41,916 INFO L78 Accepts]: Start accepts. Automaton has 1351 states and 2022 transitions. Word has length 45 [2025-03-16 22:49:41,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 22:49:41,916 INFO L471 AbstractCegarLoop]: Abstraction has 1351 states and 2022 transitions. [2025-03-16 22:49:41,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 22:49:41,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1351 states and 2022 transitions. [2025-03-16 22:49:41,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2025-03-16 22:49:41,917 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 22:49:41,917 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 22:49:41,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-16 22:49:41,917 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 22:49:41,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 22:49:41,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1491236293, now seen corresponding path program 1 times [2025-03-16 22:49:41,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 22:49:41,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106469809] [2025-03-16 22:49:41,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 22:49:41,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 22:49:41,949 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-16 22:49:42,004 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-16 22:49:42,004 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 22:49:42,004 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 22:49:42,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 22:49:42,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 22:49:42,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106469809] [2025-03-16 22:49:42,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106469809] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 22:49:42,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 22:49:42,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-16 22:49:42,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074568542] [2025-03-16 22:49:42,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 22:49:42,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-16 22:49:42,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 22:49:42,509 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-16 22:49:42,509 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-16 22:49:42,509 INFO L87 Difference]: Start difference. First operand 1351 states and 2022 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 22:49:43,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 22:49:43,642 INFO L93 Difference]: Finished difference Result 2657 states and 3977 transitions. [2025-03-16 22:49:43,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-16 22:49:43,643 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2025-03-16 22:49:43,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 22:49:43,647 INFO L225 Difference]: With dead ends: 2657 [2025-03-16 22:49:43,647 INFO L226 Difference]: Without dead ends: 1359 [2025-03-16 22:49:43,648 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-03-16 22:49:43,649 INFO L435 NwaCegarLoop]: 1669 mSDtfsCounter, 1992 mSDsluCounter, 8334 mSDsCounter, 0 mSdLazyCounter, 2101 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1992 SdHoareTripleChecker+Valid, 10003 SdHoareTripleChecker+Invalid, 2102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-16 22:49:43,649 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1992 Valid, 10003 Invalid, 2102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2101 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-16 22:49:43,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1359 states. [2025-03-16 22:49:43,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1359 to 1356. [2025-03-16 22:49:43,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1356 states, 1355 states have (on average 1.4966789667896678) internal successors, (2028), 1355 states have internal predecessors, (2028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 22:49:43,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1356 states to 1356 states and 2028 transitions. [2025-03-16 22:49:43,671 INFO L78 Accepts]: Start accepts. Automaton has 1356 states and 2028 transitions. Word has length 46 [2025-03-16 22:49:43,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 22:49:43,672 INFO L471 AbstractCegarLoop]: Abstraction has 1356 states and 2028 transitions. [2025-03-16 22:49:43,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 22:49:43,673 INFO L276 IsEmpty]: Start isEmpty. Operand 1356 states and 2028 transitions. [2025-03-16 22:49:43,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2025-03-16 22:49:43,673 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 22:49:43,674 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 22:49:43,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-16 22:49:43,674 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 22:49:43,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 22:49:43,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1937237914, now seen corresponding path program 1 times [2025-03-16 22:49:43,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 22:49:43,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756434215] [2025-03-16 22:49:43,676 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 22:49:43,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 22:49:43,699 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-03-16 22:49:43,722 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-03-16 22:49:43,723 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 22:49:43,723 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 22:49:43,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 22:49:43,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 22:49:43,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756434215] [2025-03-16 22:49:43,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756434215] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 22:49:43,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 22:49:43,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-16 22:49:43,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778989516] [2025-03-16 22:49:43,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 22:49:43,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-16 22:49:43,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 22:49:43,962 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-16 22:49:43,963 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2025-03-16 22:49:43,963 INFO L87 Difference]: Start difference. First operand 1356 states and 2028 transitions. Second operand has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 22:49:45,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 22:49:45,103 INFO L93 Difference]: Finished difference Result 2667 states and 3989 transitions. [2025-03-16 22:49:45,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-16 22:49:45,103 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2025-03-16 22:49:45,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 22:49:45,107 INFO L225 Difference]: With dead ends: 2667 [2025-03-16 22:49:45,107 INFO L226 Difference]: Without dead ends: 1364 [2025-03-16 22:49:45,108 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2025-03-16 22:49:45,109 INFO L435 NwaCegarLoop]: 1677 mSDtfsCounter, 1987 mSDsluCounter, 10034 mSDsCounter, 0 mSdLazyCounter, 2471 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1987 SdHoareTripleChecker+Valid, 11711 SdHoareTripleChecker+Invalid, 2472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-03-16 22:49:45,109 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1987 Valid, 11711 Invalid, 2472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2471 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-03-16 22:49:45,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1364 states. [2025-03-16 22:49:45,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1364 to 1356. [2025-03-16 22:49:45,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1356 states, 1355 states have (on average 1.4966789667896678) internal successors, (2028), 1355 states have internal predecessors, (2028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 22:49:45,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1356 states to 1356 states and 2028 transitions. [2025-03-16 22:49:45,127 INFO L78 Accepts]: Start accepts. Automaton has 1356 states and 2028 transitions. Word has length 47 [2025-03-16 22:49:45,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 22:49:45,127 INFO L471 AbstractCegarLoop]: Abstraction has 1356 states and 2028 transitions. [2025-03-16 22:49:45,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 22:49:45,127 INFO L276 IsEmpty]: Start isEmpty. Operand 1356 states and 2028 transitions. [2025-03-16 22:49:45,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2025-03-16 22:49:45,128 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 22:49:45,128 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 22:49:45,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-16 22:49:45,128 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 22:49:45,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 22:49:45,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1246175434, now seen corresponding path program 1 times [2025-03-16 22:49:45,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 22:49:45,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267220948] [2025-03-16 22:49:45,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 22:49:45,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 22:49:45,150 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-03-16 22:49:45,167 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-03-16 22:49:45,167 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 22:49:45,168 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 22:49:45,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 22:49:45,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 22:49:45,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267220948] [2025-03-16 22:49:45,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267220948] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 22:49:45,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 22:49:45,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-16 22:49:45,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725265006] [2025-03-16 22:49:45,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 22:49:45,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-16 22:49:45,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 22:49:45,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-16 22:49:45,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-16 22:49:45,478 INFO L87 Difference]: Start difference. First operand 1356 states and 2028 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 22:49:46,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 22:49:46,349 INFO L93 Difference]: Finished difference Result 2663 states and 3983 transitions. [2025-03-16 22:49:46,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-16 22:49:46,350 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2025-03-16 22:49:46,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 22:49:46,354 INFO L225 Difference]: With dead ends: 2663 [2025-03-16 22:49:46,354 INFO L226 Difference]: Without dead ends: 1360 [2025-03-16 22:49:46,355 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-16 22:49:46,357 INFO L435 NwaCegarLoop]: 1675 mSDtfsCounter, 10 mSDsluCounter, 6682 mSDsCounter, 0 mSdLazyCounter, 1717 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 8357 SdHoareTripleChecker+Invalid, 1717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-16 22:49:46,357 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 8357 Invalid, 1717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1717 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-16 22:49:46,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1360 states. [2025-03-16 22:49:46,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1360 to 1358. [2025-03-16 22:49:46,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1358 states, 1357 states have (on average 1.4959469417833455) internal successors, (2030), 1357 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 22:49:46,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1358 states to 1358 states and 2030 transitions. [2025-03-16 22:49:46,375 INFO L78 Accepts]: Start accepts. Automaton has 1358 states and 2030 transitions. Word has length 47 [2025-03-16 22:49:46,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 22:49:46,375 INFO L471 AbstractCegarLoop]: Abstraction has 1358 states and 2030 transitions. [2025-03-16 22:49:46,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 22:49:46,376 INFO L276 IsEmpty]: Start isEmpty. Operand 1358 states and 2030 transitions. [2025-03-16 22:49:46,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2025-03-16 22:49:46,378 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 22:49:46,379 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 22:49:46,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-16 22:49:46,379 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 22:49:46,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 22:49:46,379 INFO L85 PathProgramCache]: Analyzing trace with hash 872049537, now seen corresponding path program 1 times [2025-03-16 22:49:46,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 22:49:46,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214532777] [2025-03-16 22:49:46,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 22:49:46,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 22:49:46,405 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-03-16 22:49:46,431 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-03-16 22:49:46,432 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 22:49:46,432 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 22:49:46,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 22:49:46,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 22:49:46,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214532777] [2025-03-16 22:49:46,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214532777] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 22:49:46,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 22:49:46,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-16 22:49:46,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793225129] [2025-03-16 22:49:46,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 22:49:46,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-16 22:49:46,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 22:49:46,798 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-16 22:49:46,801 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-16 22:49:46,801 INFO L87 Difference]: Start difference. First operand 1358 states and 2030 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 22:49:47,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 22:49:47,731 INFO L93 Difference]: Finished difference Result 2812 states and 4199 transitions. [2025-03-16 22:49:47,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-16 22:49:47,731 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2025-03-16 22:49:47,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 22:49:47,735 INFO L225 Difference]: With dead ends: 2812 [2025-03-16 22:49:47,735 INFO L226 Difference]: Without dead ends: 1507 [2025-03-16 22:49:47,737 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2025-03-16 22:49:47,737 INFO L435 NwaCegarLoop]: 1666 mSDtfsCounter, 2412 mSDsluCounter, 6657 mSDsCounter, 0 mSdLazyCounter, 1766 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2412 SdHoareTripleChecker+Valid, 8323 SdHoareTripleChecker+Invalid, 1767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-16 22:49:47,737 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2412 Valid, 8323 Invalid, 1767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1766 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-16 22:49:47,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1507 states. [2025-03-16 22:49:47,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1507 to 1376. [2025-03-16 22:49:47,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1376 states, 1375 states have (on average 1.4945454545454546) internal successors, (2055), 1375 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 22:49:47,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 2055 transitions. [2025-03-16 22:49:47,755 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 2055 transitions. Word has length 47 [2025-03-16 22:49:47,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 22:49:47,755 INFO L471 AbstractCegarLoop]: Abstraction has 1376 states and 2055 transitions. [2025-03-16 22:49:47,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 22:49:47,755 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 2055 transitions. [2025-03-16 22:49:47,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-03-16 22:49:47,756 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 22:49:47,756 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 22:49:47,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-16 22:49:47,756 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 22:49:47,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 22:49:47,757 INFO L85 PathProgramCache]: Analyzing trace with hash 773346733, now seen corresponding path program 1 times [2025-03-16 22:49:47,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 22:49:47,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019743541] [2025-03-16 22:49:47,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 22:49:47,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 22:49:47,777 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-16 22:49:47,794 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-16 22:49:47,795 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 22:49:47,795 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 22:49:48,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 22:49:48,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 22:49:48,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019743541] [2025-03-16 22:49:48,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019743541] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 22:49:48,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 22:49:48,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-16 22:49:48,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076339669] [2025-03-16 22:49:48,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 22:49:48,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-16 22:49:48,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 22:49:48,232 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-16 22:49:48,232 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-03-16 22:49:48,233 INFO L87 Difference]: Start difference. First operand 1376 states and 2055 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 22:49:48,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 22:49:48,788 INFO L93 Difference]: Finished difference Result 2678 states and 4003 transitions. [2025-03-16 22:49:48,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-16 22:49:48,789 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2025-03-16 22:49:48,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 22:49:48,792 INFO L225 Difference]: With dead ends: 2678 [2025-03-16 22:49:48,792 INFO L226 Difference]: Without dead ends: 1373 [2025-03-16 22:49:48,794 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-03-16 22:49:48,794 INFO L435 NwaCegarLoop]: 1674 mSDtfsCounter, 8 mSDsluCounter, 3347 mSDsCounter, 0 mSdLazyCounter, 1033 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5021 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1033 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-16 22:49:48,794 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 5021 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1033 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-16 22:49:48,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1373 states. [2025-03-16 22:49:48,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1373 to 1369. [2025-03-16 22:49:48,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1369 states, 1368 states have (on average 1.4956140350877194) internal successors, (2046), 1368 states have internal predecessors, (2046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 22:49:48,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1369 states to 1369 states and 2046 transitions. [2025-03-16 22:49:48,809 INFO L78 Accepts]: Start accepts. Automaton has 1369 states and 2046 transitions. Word has length 48 [2025-03-16 22:49:48,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 22:49:48,810 INFO L471 AbstractCegarLoop]: Abstraction has 1369 states and 2046 transitions. [2025-03-16 22:49:48,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 22:49:48,810 INFO L276 IsEmpty]: Start isEmpty. Operand 1369 states and 2046 transitions. [2025-03-16 22:49:48,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-03-16 22:49:48,810 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 22:49:48,810 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 22:49:48,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-16 22:49:48,811 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 22:49:48,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 22:49:48,811 INFO L85 PathProgramCache]: Analyzing trace with hash -978277410, now seen corresponding path program 1 times [2025-03-16 22:49:48,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 22:49:48,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270949472] [2025-03-16 22:49:48,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 22:49:48,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 22:49:48,831 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-16 22:49:48,846 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-16 22:49:48,847 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 22:49:48,847 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-16 22:49:48,847 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-16 22:49:48,859 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-16 22:49:48,878 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-16 22:49:48,880 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 22:49:48,880 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-16 22:49:48,929 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-16 22:49:48,929 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-16 22:49:48,930 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-16 22:49:48,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-16 22:49:48,934 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 22:49:48,977 WARN L310 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2025-03-16 22:49:48,992 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-16 22:49:48,995 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 10:49:48 BoogieIcfgContainer [2025-03-16 22:49:48,996 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-16 22:49:48,996 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-16 22:49:48,996 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-16 22:49:48,997 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-16 22:49:48,997 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 10:49:39" (3/4) ... [2025-03-16 22:49:48,999 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-16 22:49:48,999 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-16 22:49:49,000 INFO L158 Benchmark]: Toolchain (without parser) took 15107.59ms. Allocated memory was 167.8MB in the beginning and 478.2MB in the end (delta: 310.4MB). Free memory was 120.5MB in the beginning and 192.8MB in the end (delta: -72.3MB). Peak memory consumption was 244.5MB. Max. memory is 16.1GB. [2025-03-16 22:49:49,000 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 115.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 22:49:49,000 INFO L158 Benchmark]: CACSL2BoogieTranslator took 575.52ms. Allocated memory is still 167.8MB. Free memory was 120.5MB in the beginning and 45.7MB in the end (delta: 74.8MB). Peak memory consumption was 75.5MB. Max. memory is 16.1GB. [2025-03-16 22:49:49,000 INFO L158 Benchmark]: Boogie Procedure Inliner took 342.05ms. Allocated memory was 167.8MB in the beginning and 176.2MB in the end (delta: 8.4MB). Free memory was 44.7MB in the beginning and 58.7MB in the end (delta: -14.0MB). Peak memory consumption was 53.6MB. Max. memory is 16.1GB. [2025-03-16 22:49:49,001 INFO L158 Benchmark]: Boogie Preprocessor took 552.86ms. Allocated memory was 176.2MB in the beginning and 394.3MB in the end (delta: 218.1MB). Free memory was 58.7MB in the beginning and 267.2MB in the end (delta: -208.6MB). Peak memory consumption was 62.7MB. Max. memory is 16.1GB. [2025-03-16 22:49:49,001 INFO L158 Benchmark]: IcfgBuilder took 4346.08ms. Allocated memory was 394.3MB in the beginning and 503.3MB in the end (delta: 109.1MB). Free memory was 267.2MB in the beginning and 204.0MB in the end (delta: 63.2MB). Peak memory consumption was 309.9MB. Max. memory is 16.1GB. [2025-03-16 22:49:49,001 INFO L158 Benchmark]: TraceAbstraction took 9282.35ms. Allocated memory was 503.3MB in the beginning and 478.2MB in the end (delta: -25.2MB). Free memory was 199.8MB in the beginning and 192.8MB in the end (delta: 7.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 22:49:49,002 INFO L158 Benchmark]: Witness Printer took 2.73ms. Allocated memory is still 478.2MB. Free memory was 192.8MB in the beginning and 192.8MB in the end (delta: 39.3kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-16 22:49:49,002 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 115.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 575.52ms. Allocated memory is still 167.8MB. Free memory was 120.5MB in the beginning and 45.7MB in the end (delta: 74.8MB). Peak memory consumption was 75.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 342.05ms. Allocated memory was 167.8MB in the beginning and 176.2MB in the end (delta: 8.4MB). Free memory was 44.7MB in the beginning and 58.7MB in the end (delta: -14.0MB). Peak memory consumption was 53.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 552.86ms. Allocated memory was 176.2MB in the beginning and 394.3MB in the end (delta: 218.1MB). Free memory was 58.7MB in the beginning and 267.2MB in the end (delta: -208.6MB). Peak memory consumption was 62.7MB. Max. memory is 16.1GB. * IcfgBuilder took 4346.08ms. Allocated memory was 394.3MB in the beginning and 503.3MB in the end (delta: 109.1MB). Free memory was 267.2MB in the beginning and 204.0MB in the end (delta: 63.2MB). Peak memory consumption was 309.9MB. Max. memory is 16.1GB. * TraceAbstraction took 9282.35ms. Allocated memory was 503.3MB in the beginning and 478.2MB in the end (delta: -25.2MB). Free memory was 199.8MB in the beginning and 192.8MB in the end (delta: 7.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.73ms. Allocated memory is still 478.2MB. Free memory was 192.8MB in the beginning and 192.8MB in the end (delta: 39.3kB). 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 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 206. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 16); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (16 - 1); [L32] const SORT_9 mask_SORT_9 = (SORT_9)-1 >> (sizeof(SORT_9) * 8 - 2); [L33] const SORT_9 msb_SORT_9 = (SORT_9)1 << (2 - 1); [L35] const SORT_14 mask_SORT_14 = (SORT_14)-1 >> (sizeof(SORT_14) * 8 - 3); [L36] const SORT_14 msb_SORT_14 = (SORT_14)1 << (3 - 1); [L38] const SORT_41 mask_SORT_41 = (SORT_41)-1 >> (sizeof(SORT_41) * 8 - 12); [L39] const SORT_41 msb_SORT_41 = (SORT_41)1 << (12 - 1); [L41] const SORT_97 mask_SORT_97 = (SORT_97)-1 >> (sizeof(SORT_97) * 8 - 17); [L42] const SORT_97 msb_SORT_97 = (SORT_97)1 << (17 - 1); [L44] const SORT_98 mask_SORT_98 = (SORT_98)-1 >> (sizeof(SORT_98) * 8 - 5); [L45] const SORT_98 msb_SORT_98 = (SORT_98)1 << (5 - 1); [L47] const SORT_101 mask_SORT_101 = (SORT_101)-1 >> (sizeof(SORT_101) * 8 - 9); [L48] const SORT_101 msb_SORT_101 = (SORT_101)1 << (9 - 1); [L50] const SORT_103 mask_SORT_103 = (SORT_103)-1 >> (sizeof(SORT_103) * 8 - 10); [L51] const SORT_103 msb_SORT_103 = (SORT_103)1 << (10 - 1); [L53] const SORT_106 mask_SORT_106 = (SORT_106)-1 >> (sizeof(SORT_106) * 8 - 11); [L54] const SORT_106 msb_SORT_106 = (SORT_106)1 << (11 - 1); [L56] const SORT_111 mask_SORT_111 = (SORT_111)-1 >> (sizeof(SORT_111) * 8 - 13); [L57] const SORT_111 msb_SORT_111 = (SORT_111)1 << (13 - 1); [L59] const SORT_114 mask_SORT_114 = (SORT_114)-1 >> (sizeof(SORT_114) * 8 - 14); [L60] const SORT_114 msb_SORT_114 = (SORT_114)1 << (14 - 1); [L62] const SORT_117 mask_SORT_117 = (SORT_117)-1 >> (sizeof(SORT_117) * 8 - 15); [L63] const SORT_117 msb_SORT_117 = (SORT_117)1 << (15 - 1); [L65] const SORT_150 mask_SORT_150 = (SORT_150)-1 >> (sizeof(SORT_150) * 8 - 7); [L66] const SORT_150 msb_SORT_150 = (SORT_150)1 << (7 - 1); [L68] const SORT_366 mask_SORT_366 = (SORT_366)-1 >> (sizeof(SORT_366) * 8 - 4); [L69] const SORT_366 msb_SORT_366 = (SORT_366)1 << (4 - 1); [L71] const SORT_369 mask_SORT_369 = (SORT_369)-1 >> (sizeof(SORT_369) * 8 - 6); [L72] const SORT_369 msb_SORT_369 = (SORT_369)1 << (6 - 1); [L74] const SORT_372 mask_SORT_372 = (SORT_372)-1 >> (sizeof(SORT_372) * 8 - 8); [L75] const SORT_372 msb_SORT_372 = (SORT_372)1 << (8 - 1); [L77] const SORT_3 var_6 = 0; [L78] const SORT_14 var_15 = 0; [L79] const SORT_9 var_19 = 0; [L80] const SORT_1 var_30 = 1; [L81] const SORT_1 var_36 = 0; [L82] const SORT_41 var_42 = 0; [L83] const SORT_14 var_56 = 2; [L84] const SORT_14 var_60 = 1; [L85] const SORT_14 var_65 = 4; [L86] const SORT_14 var_67 = 5; [L87] const SORT_14 var_71 = 3; [L88] const SORT_98 var_99 = 0; [L89] const SORT_150 var_152 = 5; [L90] const SORT_150 var_156 = 4; [L91] const SORT_150 var_160 = 3; [L92] const SORT_150 var_164 = 2; [L93] const SORT_150 var_168 = 1; [L94] const SORT_150 var_172 = 0; [L95] const SORT_41 var_195 = 2; [L96] const SORT_3 var_217 = 65535; [L98] SORT_1 input_2; [L99] SORT_3 input_4; [L100] SORT_3 input_5; [L101] SORT_3 input_207; [L102] SORT_3 input_208; [L103] SORT_3 input_209; [L104] SORT_3 input_216; [L105] SORT_3 input_224; [L106] SORT_3 input_225; [L107] SORT_3 input_226; [L108] SORT_3 input_229; [L109] SORT_3 input_247; [L110] SORT_3 input_248; [L111] SORT_3 input_249; [L112] SORT_3 input_252; [L113] SORT_3 input_254; [L114] SORT_9 input_268; [L115] SORT_9 input_269; [L116] SORT_9 input_270; [L118] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [mask_SORT_101=511, mask_SORT_103=1023, mask_SORT_106=2047, mask_SORT_111=8191, mask_SORT_114=16383, mask_SORT_117=32767, mask_SORT_14=7, mask_SORT_150=127, mask_SORT_1=1, mask_SORT_366=15, mask_SORT_369=63, mask_SORT_372=255, mask_SORT_3=65535, mask_SORT_41=4095, mask_SORT_98=31, mask_SORT_9=3, var_152=5, var_156=4, var_15=0, var_160=3, var_164=2, var_168=1, var_172=0, var_195=2, var_19=0, var_217=65535, var_30=1, var_36=0, var_42=0, var_56=2, var_60=1, var_65=4, var_67=5, var_6=0, var_71=3, var_99=0] [L118] SORT_3 state_7 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L119] EXPR __VERIFIER_nondet_uchar() & mask_SORT_14 VAL [mask_SORT_101=511, mask_SORT_103=1023, mask_SORT_106=2047, mask_SORT_111=8191, mask_SORT_114=16383, mask_SORT_117=32767, mask_SORT_14=7, mask_SORT_150=127, mask_SORT_1=1, mask_SORT_366=15, mask_SORT_369=63, mask_SORT_372=255, mask_SORT_3=65535, mask_SORT_41=4095, mask_SORT_98=31, mask_SORT_9=3, var_152=5, var_156=4, var_15=0, var_160=3, var_164=2, var_168=1, var_172=0, var_195=2, var_19=0, var_217=65535, var_30=1, var_36=0, var_42=0, var_56=2, var_60=1, var_65=4, var_67=5, var_6=0, var_71=3, var_99=0] [L119] SORT_14 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_14; [L120] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [mask_SORT_101=511, mask_SORT_103=1023, mask_SORT_106=2047, mask_SORT_111=8191, mask_SORT_114=16383, mask_SORT_117=32767, mask_SORT_14=7, mask_SORT_150=127, mask_SORT_1=1, mask_SORT_366=15, mask_SORT_369=63, mask_SORT_372=255, mask_SORT_3=65535, mask_SORT_41=4095, mask_SORT_98=31, mask_SORT_9=3, var_152=5, var_156=4, var_15=0, var_160=3, var_164=2, var_168=1, var_172=0, var_195=2, var_19=0, var_217=65535, var_30=1, var_36=0, var_42=0, var_56=2, var_60=1, var_65=4, var_67=5, var_6=0, var_71=3, var_99=0] [L120] SORT_3 state_21 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L121] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [mask_SORT_101=511, mask_SORT_103=1023, mask_SORT_106=2047, mask_SORT_111=8191, mask_SORT_114=16383, mask_SORT_117=32767, mask_SORT_14=7, mask_SORT_150=127, mask_SORT_1=1, mask_SORT_366=15, mask_SORT_369=63, mask_SORT_372=255, mask_SORT_3=65535, mask_SORT_41=4095, mask_SORT_98=31, mask_SORT_9=3, var_152=5, var_156=4, var_15=0, var_160=3, var_164=2, var_168=1, var_172=0, var_195=2, var_19=0, var_217=65535, var_30=1, var_36=0, var_42=0, var_56=2, var_60=1, var_65=4, var_67=5, var_6=0, var_71=3, var_99=0] [L121] SORT_3 state_23 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L122] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [mask_SORT_101=511, mask_SORT_103=1023, mask_SORT_106=2047, mask_SORT_111=8191, mask_SORT_114=16383, mask_SORT_117=32767, mask_SORT_14=7, mask_SORT_150=127, mask_SORT_1=1, mask_SORT_366=15, mask_SORT_369=63, mask_SORT_372=255, mask_SORT_3=65535, mask_SORT_41=4095, mask_SORT_98=31, mask_SORT_9=3, var_152=5, var_156=4, var_15=0, var_160=3, var_164=2, var_168=1, var_172=0, var_195=2, var_19=0, var_217=65535, var_30=1, var_36=0, var_42=0, var_56=2, var_60=1, var_65=4, var_67=5, var_6=0, var_71=3, var_99=0] [L122] SORT_3 state_34 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L123] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_101=511, mask_SORT_103=1023, mask_SORT_106=2047, mask_SORT_111=8191, mask_SORT_114=16383, mask_SORT_117=32767, mask_SORT_14=7, mask_SORT_150=127, mask_SORT_1=1, mask_SORT_366=15, mask_SORT_369=63, mask_SORT_372=255, mask_SORT_3=65535, mask_SORT_41=4095, mask_SORT_98=31, mask_SORT_9=3, var_152=5, var_156=4, var_15=0, var_160=3, var_164=2, var_168=1, var_172=0, var_195=2, var_19=0, var_217=65535, var_30=1, var_36=0, var_42=0, var_56=2, var_60=1, var_65=4, var_67=5, var_6=0, var_71=3, var_99=0] [L123] SORT_1 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L124] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [mask_SORT_101=511, mask_SORT_103=1023, mask_SORT_106=2047, mask_SORT_111=8191, mask_SORT_114=16383, mask_SORT_117=32767, mask_SORT_14=7, mask_SORT_150=127, mask_SORT_1=1, mask_SORT_366=15, mask_SORT_369=63, mask_SORT_372=255, mask_SORT_3=65535, mask_SORT_41=4095, mask_SORT_98=31, mask_SORT_9=3, var_152=5, var_156=4, var_15=0, var_160=3, var_164=2, var_168=1, var_172=0, var_195=2, var_19=0, var_217=65535, var_30=1, var_36=0, var_42=0, var_56=2, var_60=1, var_65=4, var_67=5, var_6=0, var_71=3, var_99=0] [L124] SORT_3 state_39 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L125] EXPR __VERIFIER_nondet_ushort() & mask_SORT_41 VAL [mask_SORT_101=511, mask_SORT_103=1023, mask_SORT_106=2047, mask_SORT_111=8191, mask_SORT_114=16383, mask_SORT_117=32767, mask_SORT_14=7, mask_SORT_150=127, mask_SORT_1=1, mask_SORT_366=15, mask_SORT_369=63, mask_SORT_372=255, mask_SORT_3=65535, mask_SORT_41=4095, mask_SORT_98=31, mask_SORT_9=3, var_152=5, var_156=4, var_15=0, var_160=3, var_164=2, var_168=1, var_172=0, var_195=2, var_19=0, var_217=65535, var_30=1, var_36=0, var_42=0, var_56=2, var_60=1, var_65=4, var_67=5, var_6=0, var_71=3, var_99=0] [L125] SORT_41 state_43 = __VERIFIER_nondet_ushort() & mask_SORT_41; [L126] EXPR __VERIFIER_nondet_ushort() & mask_SORT_41 VAL [mask_SORT_101=511, mask_SORT_103=1023, mask_SORT_106=2047, mask_SORT_111=8191, mask_SORT_114=16383, mask_SORT_117=32767, mask_SORT_14=7, mask_SORT_150=127, mask_SORT_1=1, mask_SORT_366=15, mask_SORT_369=63, mask_SORT_372=255, mask_SORT_3=65535, mask_SORT_41=4095, mask_SORT_98=31, mask_SORT_9=3, var_152=5, var_156=4, var_15=0, var_160=3, var_164=2, var_168=1, var_172=0, var_195=2, var_19=0, var_217=65535, var_30=1, var_36=0, var_42=0, var_56=2, var_60=1, var_65=4, var_67=5, var_6=0, var_71=3, var_99=0] [L126] SORT_41 state_45 = __VERIFIER_nondet_ushort() & mask_SORT_41; [L127] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [mask_SORT_101=511, mask_SORT_103=1023, mask_SORT_106=2047, mask_SORT_111=8191, mask_SORT_114=16383, mask_SORT_117=32767, mask_SORT_14=7, mask_SORT_150=127, mask_SORT_1=1, mask_SORT_366=15, mask_SORT_369=63, mask_SORT_372=255, mask_SORT_3=65535, mask_SORT_41=4095, mask_SORT_98=31, mask_SORT_9=3, var_152=5, var_156=4, var_15=0, var_160=3, var_164=2, var_168=1, var_172=0, var_195=2, var_19=0, var_217=65535, var_30=1, var_36=0, var_42=0, var_56=2, var_60=1, var_65=4, var_67=5, var_6=0, var_71=3, var_99=0] [L127] SORT_3 state_47 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L128] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [mask_SORT_101=511, mask_SORT_103=1023, mask_SORT_106=2047, mask_SORT_111=8191, mask_SORT_114=16383, mask_SORT_117=32767, mask_SORT_14=7, mask_SORT_150=127, mask_SORT_1=1, mask_SORT_366=15, mask_SORT_369=63, mask_SORT_372=255, mask_SORT_3=65535, mask_SORT_41=4095, mask_SORT_98=31, mask_SORT_9=3, var_152=5, var_156=4, var_15=0, var_160=3, var_164=2, var_168=1, var_172=0, var_195=2, var_19=0, var_217=65535, var_30=1, var_36=0, var_42=0, var_56=2, var_60=1, var_65=4, var_67=5, var_6=0, var_71=3, var_99=0] [L128] SORT_3 state_49 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L129] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [mask_SORT_101=511, mask_SORT_103=1023, mask_SORT_106=2047, mask_SORT_111=8191, mask_SORT_114=16383, mask_SORT_117=32767, mask_SORT_14=7, mask_SORT_150=127, mask_SORT_1=1, mask_SORT_366=15, mask_SORT_369=63, mask_SORT_372=255, mask_SORT_3=65535, mask_SORT_41=4095, mask_SORT_98=31, mask_SORT_9=3, var_152=5, var_156=4, var_15=0, var_160=3, var_164=2, var_168=1, var_172=0, var_195=2, var_19=0, var_217=65535, var_30=1, var_36=0, var_42=0, var_56=2, var_60=1, var_65=4, var_67=5, var_6=0, var_71=3, var_99=0] [L129] SORT_3 state_51 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L130] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [mask_SORT_101=511, mask_SORT_103=1023, mask_SORT_106=2047, mask_SORT_111=8191, mask_SORT_114=16383, mask_SORT_117=32767, mask_SORT_14=7, mask_SORT_150=127, mask_SORT_1=1, mask_SORT_366=15, mask_SORT_369=63, mask_SORT_372=255, mask_SORT_3=65535, mask_SORT_41=4095, mask_SORT_98=31, mask_SORT_9=3, var_152=5, var_156=4, var_15=0, var_160=3, var_164=2, var_168=1, var_172=0, var_195=2, var_19=0, var_217=65535, var_30=1, var_36=0, var_42=0, var_56=2, var_60=1, var_65=4, var_67=5, var_6=0, var_71=3, var_99=0] [L130] SORT_3 state_53 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L132] SORT_3 init_8_arg_1 = var_6; [L133] state_7 = init_8_arg_1 [L134] SORT_14 init_17_arg_1 = var_15; [L135] state_16 = init_17_arg_1 [L136] SORT_3 init_22_arg_1 = var_6; [L137] state_21 = init_22_arg_1 [L138] SORT_3 init_24_arg_1 = var_6; [L139] state_23 = init_24_arg_1 [L140] SORT_3 init_35_arg_1 = var_6; [L141] state_34 = init_35_arg_1 [L142] SORT_1 init_38_arg_1 = var_36; [L143] state_37 = init_38_arg_1 [L144] SORT_3 init_40_arg_1 = var_6; [L145] state_39 = init_40_arg_1 [L146] SORT_41 init_44_arg_1 = var_42; [L147] state_43 = init_44_arg_1 [L148] SORT_41 init_46_arg_1 = var_42; [L149] state_45 = init_46_arg_1 [L150] SORT_3 init_48_arg_1 = var_6; [L151] state_47 = init_48_arg_1 [L152] SORT_3 init_50_arg_1 = var_6; [L153] state_49 = init_50_arg_1 [L154] SORT_3 init_52_arg_1 = var_6; [L155] state_51 = init_52_arg_1 [L156] SORT_3 init_54_arg_1 = var_6; [L157] state_53 = init_54_arg_1 VAL [mask_SORT_101=511, mask_SORT_103=1023, mask_SORT_106=2047, mask_SORT_111=8191, mask_SORT_114=16383, mask_SORT_117=32767, mask_SORT_14=7, mask_SORT_150=127, mask_SORT_1=1, mask_SORT_366=15, mask_SORT_369=63, mask_SORT_372=255, mask_SORT_3=65535, mask_SORT_41=4095, mask_SORT_98=31, mask_SORT_9=3, state_16=0, state_21=0, state_23=0, state_34=0, state_37=0, state_39=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_7=0, var_152=5, var_156=4, var_15=0, var_160=3, var_164=2, var_168=1, var_172=0, var_195=2, var_19=0, var_217=65535, var_30=1, var_36=0, var_56=2, var_60=1, var_65=4, var_67=5, var_6=0, var_71=3, var_99=0] [L160] input_2 = __VERIFIER_nondet_uchar() [L161] input_4 = __VERIFIER_nondet_ushort() [L162] input_5 = __VERIFIER_nondet_ushort() [L163] input_207 = __VERIFIER_nondet_ushort() [L164] input_208 = __VERIFIER_nondet_ushort() [L165] input_209 = __VERIFIER_nondet_ushort() [L166] input_216 = __VERIFIER_nondet_ushort() [L167] input_224 = __VERIFIER_nondet_ushort() [L168] input_225 = __VERIFIER_nondet_ushort() [L169] input_226 = __VERIFIER_nondet_ushort() [L170] input_229 = __VERIFIER_nondet_ushort() [L171] input_247 = __VERIFIER_nondet_ushort() [L172] input_248 = __VERIFIER_nondet_ushort() [L173] input_249 = __VERIFIER_nondet_ushort() [L174] input_252 = __VERIFIER_nondet_ushort() [L175] input_254 = __VERIFIER_nondet_ushort() [L176] input_268 = __VERIFIER_nondet_uchar() [L177] input_269 = __VERIFIER_nondet_uchar() [L178] input_270 = __VERIFIER_nondet_uchar() [L181] SORT_3 var_10_arg_0 = state_7; [L182] SORT_9 var_10 = var_10_arg_0 >> 3; VAL [mask_SORT_101=511, mask_SORT_103=1023, mask_SORT_106=2047, mask_SORT_111=8191, mask_SORT_114=16383, mask_SORT_117=32767, mask_SORT_14=7, mask_SORT_150=127, mask_SORT_1=1, mask_SORT_366=15, mask_SORT_369=63, mask_SORT_372=255, mask_SORT_3=65535, mask_SORT_41=4095, mask_SORT_98=31, mask_SORT_9=3, state_16=0, state_21=0, state_23=0, state_34=0, state_37=0, state_39=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_7=0, var_10=0, var_152=5, var_156=4, var_15=0, var_160=3, var_164=2, var_168=1, var_172=0, var_195=2, var_19=0, var_217=65535, var_30=1, var_36=0, var_56=2, var_60=1, var_65=4, var_67=5, var_6=0, var_71=3, var_99=0] [L183] EXPR var_10 & mask_SORT_9 VAL [mask_SORT_101=511, mask_SORT_103=1023, mask_SORT_106=2047, mask_SORT_111=8191, mask_SORT_114=16383, mask_SORT_117=32767, mask_SORT_14=7, mask_SORT_150=127, mask_SORT_1=1, mask_SORT_366=15, mask_SORT_369=63, mask_SORT_372=255, mask_SORT_3=65535, mask_SORT_41=4095, mask_SORT_98=31, mask_SORT_9=3, state_16=0, state_21=0, state_23=0, state_34=0, state_37=0, state_39=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_7=0, var_152=5, var_156=4, var_15=0, var_160=3, var_164=2, var_168=1, var_172=0, var_195=2, var_19=0, var_217=65535, var_30=1, var_36=0, var_56=2, var_60=1, var_65=4, var_67=5, var_6=0, var_71=3, var_99=0] [L183] var_10 = var_10 & mask_SORT_9 [L184] SORT_3 var_11_arg_0 = state_7; [L185] SORT_9 var_11 = var_11_arg_0 >> 5; VAL [mask_SORT_101=511, mask_SORT_103=1023, mask_SORT_106=2047, mask_SORT_111=8191, mask_SORT_114=16383, mask_SORT_117=32767, mask_SORT_14=7, mask_SORT_150=127, mask_SORT_1=1, mask_SORT_366=15, mask_SORT_369=63, mask_SORT_372=255, mask_SORT_3=65535, mask_SORT_41=4095, mask_SORT_98=31, mask_SORT_9=3, state_16=0, state_21=0, state_23=0, state_34=0, state_37=0, state_39=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_7=0, var_10=0, var_11=0, var_152=5, var_156=4, var_15=0, var_160=3, var_164=2, var_168=1, var_172=0, var_195=2, var_19=0, var_217=65535, var_30=1, var_36=0, var_56=2, var_60=1, var_65=4, var_67=5, var_6=0, var_71=3, var_99=0] [L186] EXPR var_11 & mask_SORT_9 VAL [mask_SORT_101=511, mask_SORT_103=1023, mask_SORT_106=2047, mask_SORT_111=8191, mask_SORT_114=16383, mask_SORT_117=32767, mask_SORT_14=7, mask_SORT_150=127, mask_SORT_1=1, mask_SORT_366=15, mask_SORT_369=63, mask_SORT_372=255, mask_SORT_3=65535, mask_SORT_41=4095, mask_SORT_98=31, mask_SORT_9=3, state_16=0, state_21=0, state_23=0, state_34=0, state_37=0, state_39=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_7=0, var_10=0, var_152=5, var_156=4, var_15=0, var_160=3, var_164=2, var_168=1, var_172=0, var_195=2, var_19=0, var_217=65535, var_30=1, var_36=0, var_56=2, var_60=1, var_65=4, var_67=5, var_6=0, var_71=3, var_99=0] [L186] var_11 = var_11 & mask_SORT_9 [L187] SORT_9 var_12_arg_0 = var_10; [L188] SORT_9 var_12_arg_1 = var_11; [L189] SORT_1 var_12 = var_12_arg_0 == var_12_arg_1; [L190] SORT_1 var_13_arg_0 = var_12; [L191] SORT_1 var_13 = ~var_13_arg_0; [L192] SORT_14 var_18_arg_0 = state_16; [L193] SORT_9 var_18 = var_18_arg_0 >> 1; VAL [mask_SORT_101=511, mask_SORT_103=1023, mask_SORT_106=2047, mask_SORT_111=8191, mask_SORT_114=16383, mask_SORT_117=32767, mask_SORT_14=7, mask_SORT_150=127, mask_SORT_1=1, mask_SORT_366=15, mask_SORT_369=63, mask_SORT_372=255, mask_SORT_3=65535, mask_SORT_41=4095, mask_SORT_98=31, mask_SORT_9=3, state_16=0, state_21=0, state_23=0, state_34=0, state_37=0, state_39=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_7=0, var_11=0, var_13=-2, var_152=5, var_156=4, var_15=0, var_160=3, var_164=2, var_168=1, var_172=0, var_18=0, var_195=2, var_19=0, var_217=65535, var_30=1, var_36=0, var_56=2, var_60=1, var_65=4, var_67=5, var_6=0, var_71=3, var_99=0] [L194] EXPR var_18 & mask_SORT_9 VAL [mask_SORT_101=511, mask_SORT_103=1023, mask_SORT_106=2047, mask_SORT_111=8191, mask_SORT_114=16383, mask_SORT_117=32767, mask_SORT_14=7, mask_SORT_150=127, mask_SORT_1=1, mask_SORT_366=15, mask_SORT_369=63, mask_SORT_372=255, mask_SORT_3=65535, mask_SORT_41=4095, mask_SORT_98=31, mask_SORT_9=3, state_16=0, state_21=0, state_23=0, state_34=0, state_37=0, state_39=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_7=0, var_11=0, var_13=-2, var_152=5, var_156=4, var_15=0, var_160=3, var_164=2, var_168=1, var_172=0, var_195=2, var_19=0, var_217=65535, var_30=1, var_36=0, var_56=2, var_60=1, var_65=4, var_67=5, var_6=0, var_71=3, var_99=0] [L194] var_18 = var_18 & mask_SORT_9 [L195] SORT_9 var_20_arg_0 = var_18; [L196] SORT_9 var_20_arg_1 = var_19; [L197] SORT_1 var_20 = var_20_arg_0 == var_20_arg_1; [L198] SORT_3 var_25_arg_0 = state_21; [L199] SORT_3 var_25_arg_1 = state_23; [L200] SORT_1 var_25 = var_25_arg_0 == var_25_arg_1; [L201] SORT_1 var_26_arg_0 = var_20; [L202] SORT_1 var_26_arg_1 = var_25; VAL [mask_SORT_101=511, mask_SORT_103=1023, mask_SORT_106=2047, mask_SORT_111=8191, mask_SORT_114=16383, mask_SORT_117=32767, mask_SORT_14=7, mask_SORT_150=127, mask_SORT_1=1, mask_SORT_366=15, mask_SORT_369=63, mask_SORT_372=255, mask_SORT_3=65535, mask_SORT_41=4095, mask_SORT_98=31, mask_SORT_9=3, state_16=0, state_21=0, state_23=0, state_34=0, state_37=0, state_39=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_7=0, var_11=0, var_13=-2, var_152=5, var_156=4, var_15=0, var_160=3, var_164=2, var_168=1, var_172=0, var_195=2, var_19=0, var_217=65535, var_26_arg_0=1, var_26_arg_1=1, var_30=1, var_36=0, var_56=2, var_60=1, var_65=4, var_67=5, var_6=0, var_71=3, var_99=0] [L203] EXPR var_26_arg_0 | var_26_arg_1 VAL [mask_SORT_101=511, mask_SORT_103=1023, mask_SORT_106=2047, mask_SORT_111=8191, mask_SORT_114=16383, mask_SORT_117=32767, mask_SORT_14=7, mask_SORT_150=127, mask_SORT_1=1, mask_SORT_366=15, mask_SORT_369=63, mask_SORT_372=255, mask_SORT_3=65535, mask_SORT_41=4095, mask_SORT_98=31, mask_SORT_9=3, state_16=0, state_21=0, state_23=0, state_34=0, state_37=0, state_39=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_7=0, var_11=0, var_13=-2, var_152=5, var_156=4, var_15=0, var_160=3, var_164=2, var_168=1, var_172=0, var_195=2, var_19=0, var_217=65535, var_30=1, var_36=0, var_56=2, var_60=1, var_65=4, var_67=5, var_6=0, var_71=3, var_99=0] [L203] SORT_1 var_26 = var_26_arg_0 | var_26_arg_1; [L204] SORT_1 var_27_arg_0 = var_13; [L205] SORT_1 var_27_arg_1 = var_26; VAL [mask_SORT_101=511, mask_SORT_103=1023, mask_SORT_106=2047, mask_SORT_111=8191, mask_SORT_114=16383, mask_SORT_117=32767, mask_SORT_14=7, mask_SORT_150=127, mask_SORT_1=1, mask_SORT_366=15, mask_SORT_369=63, mask_SORT_372=255, mask_SORT_3=65535, mask_SORT_41=4095, mask_SORT_98=31, mask_SORT_9=3, state_16=0, state_21=0, state_23=0, state_34=0, state_37=0, state_39=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_7=0, var_11=0, var_152=5, var_156=4, var_15=0, var_160=3, var_164=2, var_168=1, var_172=0, var_195=2, var_19=0, var_217=65535, var_27_arg_0=-2, var_27_arg_1=1, var_30=1, var_36=0, var_56=2, var_60=1, var_65=4, var_67=5, var_6=0, var_71=3, var_99=0] [L206] EXPR var_27_arg_0 | var_27_arg_1 VAL [mask_SORT_101=511, mask_SORT_103=1023, mask_SORT_106=2047, mask_SORT_111=8191, mask_SORT_114=16383, mask_SORT_117=32767, mask_SORT_14=7, mask_SORT_150=127, mask_SORT_1=1, mask_SORT_366=15, mask_SORT_369=63, mask_SORT_372=255, mask_SORT_3=65535, mask_SORT_41=4095, mask_SORT_98=31, mask_SORT_9=3, state_16=0, state_21=0, state_23=0, state_34=0, state_37=0, state_39=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_7=0, var_11=0, var_152=5, var_156=4, var_15=0, var_160=3, var_164=2, var_168=1, var_172=0, var_195=2, var_19=0, var_217=65535, var_30=1, var_36=0, var_56=2, var_60=1, var_65=4, var_67=5, var_6=0, var_71=3, var_99=0] [L206] SORT_1 var_27 = var_27_arg_0 | var_27_arg_1; [L207] SORT_1 var_31_arg_0 = var_27; [L208] SORT_1 var_31 = ~var_31_arg_0; [L209] SORT_1 var_32_arg_0 = var_30; [L210] SORT_1 var_32_arg_1 = var_31; VAL [mask_SORT_101=511, mask_SORT_103=1023, mask_SORT_106=2047, mask_SORT_111=8191, mask_SORT_114=16383, mask_SORT_117=32767, mask_SORT_14=7, mask_SORT_150=127, mask_SORT_1=1, mask_SORT_366=15, mask_SORT_369=63, mask_SORT_372=255, mask_SORT_3=65535, mask_SORT_41=4095, mask_SORT_98=31, mask_SORT_9=3, state_16=0, state_21=0, state_23=0, state_34=0, state_37=0, state_39=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_7=0, var_11=0, var_152=5, var_156=4, var_15=0, var_160=3, var_164=2, var_168=1, var_172=0, var_195=2, var_19=0, var_217=65535, var_30=1, var_32_arg_0=1, var_32_arg_1=-255, var_36=0, var_56=2, var_60=1, var_65=4, var_67=5, var_6=0, var_71=3, var_99=0] [L211] EXPR var_32_arg_0 & var_32_arg_1 VAL [mask_SORT_101=511, mask_SORT_103=1023, mask_SORT_106=2047, mask_SORT_111=8191, mask_SORT_114=16383, mask_SORT_117=32767, mask_SORT_14=7, mask_SORT_150=127, mask_SORT_1=1, mask_SORT_366=15, mask_SORT_369=63, mask_SORT_372=255, mask_SORT_3=65535, mask_SORT_41=4095, mask_SORT_98=31, mask_SORT_9=3, state_16=0, state_21=0, state_23=0, state_34=0, state_37=0, state_39=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_7=0, var_11=0, var_152=5, var_156=4, var_15=0, var_160=3, var_164=2, var_168=1, var_172=0, var_195=2, var_19=0, var_217=65535, var_30=1, var_36=0, var_56=2, var_60=1, var_65=4, var_67=5, var_6=0, var_71=3, var_99=0] [L211] SORT_1 var_32 = var_32_arg_0 & var_32_arg_1; [L212] EXPR var_32 & mask_SORT_1 VAL [mask_SORT_101=511, mask_SORT_103=1023, mask_SORT_106=2047, mask_SORT_111=8191, mask_SORT_114=16383, mask_SORT_117=32767, mask_SORT_14=7, mask_SORT_150=127, mask_SORT_1=1, mask_SORT_366=15, mask_SORT_369=63, mask_SORT_372=255, mask_SORT_3=65535, mask_SORT_41=4095, mask_SORT_98=31, mask_SORT_9=3, state_16=0, state_21=0, state_23=0, state_34=0, state_37=0, state_39=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_7=0, var_11=0, var_152=5, var_156=4, var_15=0, var_160=3, var_164=2, var_168=1, var_172=0, var_195=2, var_19=0, var_217=65535, var_30=1, var_36=0, var_56=2, var_60=1, var_65=4, var_67=5, var_6=0, var_71=3, var_99=0] [L212] var_32 = var_32 & mask_SORT_1 [L213] SORT_1 bad_33_arg_0 = var_32; [L214] CALL __VERIFIER_assert(!(bad_33_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1349 locations, 2021 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.2s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6409 SdHoareTripleChecker+Valid, 5.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6409 mSDsluCounter, 53488 SdHoareTripleChecker+Invalid, 4.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 41765 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11121 IncrementalHoareTripleChecker+Invalid, 11127 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 11723 mSDtfsCounter, 11121 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1376occurred in iteration=6, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 148 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 372 NumberOfCodeBlocks, 372 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 317 ConstructedInterpolants, 0 QuantifiedInterpolants, 992 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-03-16 22:49:49,025 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p4.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2164f122c5c32edee2ede3aaa086ed34ce5834fc0fb4a31a890516c48b14c747 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-16 22:49:50,958 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-16 22:49:51,064 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2025-03-16 22:49:51,070 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-16 22:49:51,072 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-16 22:49:51,097 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-16 22:49:51,098 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-16 22:49:51,098 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-16 22:49:51,099 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-16 22:49:51,099 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-16 22:49:51,099 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-16 22:49:51,099 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-16 22:49:51,100 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-16 22:49:51,100 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-16 22:49:51,100 INFO L153 SettingsManager]: * Use SBE=true [2025-03-16 22:49:51,100 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-16 22:49:51,100 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-16 22:49:51,101 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-16 22:49:51,101 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-16 22:49:51,101 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-16 22:49:51,101 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-16 22:49:51,101 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-16 22:49:51,101 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-16 22:49:51,101 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-16 22:49:51,101 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-16 22:49:51,101 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-16 22:49:51,102 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-16 22:49:51,102 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-16 22:49:51,102 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-16 22:49:51,102 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-16 22:49:51,102 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-16 22:49:51,102 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 22:49:51,102 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-16 22:49:51,103 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-16 22:49:51,103 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-16 22:49:51,103 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-16 22:49:51,103 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-16 22:49:51,103 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-16 22:49:51,103 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-16 22:49:51,103 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-16 22:49:51,103 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-16 22:49:51,104 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-16 22:49:51,104 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2164f122c5c32edee2ede3aaa086ed34ce5834fc0fb4a31a890516c48b14c747 [2025-03-16 22:49:51,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-16 22:49:51,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-16 22:49:51,350 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-16 22:49:51,351 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-16 22:49:51,351 INFO L274 PluginConnector]: CDTParser initialized [2025-03-16 22:49:51,352 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p4.c [2025-03-16 22:49:52,497 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec0f8b434/108f33e0a0b5498dbb490d4f7052cdad/FLAG3c3a427a6 [2025-03-16 22:49:52,816 INFO L384 CDTParser]: Found 1 translation units. [2025-03-16 22:49:52,816 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p4.c [2025-03-16 22:49:52,832 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec0f8b434/108f33e0a0b5498dbb490d4f7052cdad/FLAG3c3a427a6 [2025-03-16 22:49:52,842 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec0f8b434/108f33e0a0b5498dbb490d4f7052cdad [2025-03-16 22:49:52,844 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-16 22:49:52,844 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-16 22:49:52,846 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-16 22:49:52,846 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-16 22:49:52,849 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-16 22:49:52,849 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 10:49:52" (1/1) ... [2025-03-16 22:49:52,850 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37a9479a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:49:52, skipping insertion in model container [2025-03-16 22:49:52,850 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 10:49:52" (1/1) ... [2025-03-16 22:49:52,900 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-16 22:49:53,027 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p4.c[1260,1273] [2025-03-16 22:49:53,244 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 22:49:53,254 INFO L200 MainTranslator]: Completed pre-run [2025-03-16 22:49:53,260 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p4.c[1260,1273] [2025-03-16 22:49:53,382 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 22:49:53,393 INFO L204 MainTranslator]: Completed translation [2025-03-16 22:49:53,393 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:49:53 WrapperNode [2025-03-16 22:49:53,394 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-16 22:49:53,394 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-16 22:49:53,395 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-16 22:49:53,396 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-16 22:49:53,400 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:49:53" (1/1) ... [2025-03-16 22:49:53,422 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:49:53" (1/1) ... [2025-03-16 22:49:53,508 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1824 [2025-03-16 22:49:53,509 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-16 22:49:53,509 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-16 22:49:53,509 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-16 22:49:53,509 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-16 22:49:53,515 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:49:53" (1/1) ... [2025-03-16 22:49:53,515 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:49:53" (1/1) ... [2025-03-16 22:49:53,523 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:49:53" (1/1) ... [2025-03-16 22:49:53,559 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-16 22:49:53,559 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:49:53" (1/1) ... [2025-03-16 22:49:53,559 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:49:53" (1/1) ... [2025-03-16 22:49:53,597 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:49:53" (1/1) ... [2025-03-16 22:49:53,603 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:49:53" (1/1) ... [2025-03-16 22:49:53,609 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:49:53" (1/1) ... [2025-03-16 22:49:53,613 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:49:53" (1/1) ... [2025-03-16 22:49:53,622 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-16 22:49:53,622 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-16 22:49:53,623 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-16 22:49:53,623 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-16 22:49:53,623 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:49:53" (1/1) ... [2025-03-16 22:49:53,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 22:49:53,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 22:49:53,651 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-16 22:49:53,654 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-16 22:49:53,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-16 22:49:53,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-16 22:49:53,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-16 22:49:53,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-16 22:49:53,908 INFO L256 CfgBuilder]: Building ICFG [2025-03-16 22:49:53,910 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-16 22:49:55,949 INFO L? ?]: Removed 81 outVars from TransFormulas that were not future-live. [2025-03-16 22:49:55,949 INFO L307 CfgBuilder]: Performing block encoding [2025-03-16 22:49:55,954 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-16 22:49:55,955 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-16 22:49:55,955 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 10:49:55 BoogieIcfgContainer [2025-03-16 22:49:55,955 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-16 22:49:55,956 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-16 22:49:55,956 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-16 22:49:55,959 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-16 22:49:55,960 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 10:49:52" (1/3) ... [2025-03-16 22:49:55,960 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4922be8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 10:49:55, skipping insertion in model container [2025-03-16 22:49:55,960 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:49:53" (2/3) ... [2025-03-16 22:49:55,960 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4922be8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 10:49:55, skipping insertion in model container [2025-03-16 22:49:55,960 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 10:49:55" (3/3) ... [2025-03-16 22:49:55,961 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsa16a_p4.c [2025-03-16 22:49:55,970 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-16 22:49:55,971 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.vis_arrays_vsa16a_p4.c that has 1 procedures, 8 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-16 22:49:56,000 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-16 22:49:56,007 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;@7036ef75, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-16 22:49:56,007 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-16 22:49:56,010 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 22:49:56,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-03-16 22:49:56,012 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 22:49:56,013 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-03-16 22:49:56,013 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 22:49:56,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 22:49:56,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1137951, now seen corresponding path program 1 times [2025-03-16 22:49:56,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-16 22:49:56,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [218684231] [2025-03-16 22:49:56,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 22:49:56,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 22:49:56,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 22:49:56,027 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-16 22:49:56,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-16 22:49:56,327 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-16 22:49:56,352 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-16 22:49:56,353 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 22:49:56,353 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 22:49:56,362 INFO L256 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-03-16 22:49:56,368 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 22:49:56,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 22:49:56,512 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 22:49:56,513 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-16 22:49:56,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [218684231] [2025-03-16 22:49:56,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [218684231] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 22:49:56,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 22:49:56,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 22:49:56,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390766890] [2025-03-16 22:49:56,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 22:49:56,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-16 22:49:56,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-16 22:49:56,532 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-16 22:49:56,532 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-16 22:49:56,534 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 22:49:56,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 22:49:56,636 INFO L93 Difference]: Finished difference Result 16 states and 21 transitions. [2025-03-16 22:49:56,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-16 22:49:56,638 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2025-03-16 22:49:56,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 22:49:56,641 INFO L225 Difference]: With dead ends: 16 [2025-03-16 22:49:56,642 INFO L226 Difference]: Without dead ends: 9 [2025-03-16 22:49:56,645 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-16 22:49:56,648 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 2 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-16 22:49:56,648 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 8 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-16 22:49:56,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2025-03-16 22:49:56,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2025-03-16 22:49:56,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 22:49:56,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2025-03-16 22:49:56,668 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2025-03-16 22:49:56,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 22:49:56,668 INFO L471 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2025-03-16 22:49:56,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 22:49:56,668 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2025-03-16 22:49:56,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-16 22:49:56,669 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 22:49:56,669 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2025-03-16 22:49:56,676 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-16 22:49:56,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 22:49:56,874 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 22:49:56,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 22:49:56,874 INFO L85 PathProgramCache]: Analyzing trace with hash -458170295, now seen corresponding path program 1 times [2025-03-16 22:49:56,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-16 22:49:56,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1145206305] [2025-03-16 22:49:56,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 22:49:56,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 22:49:56,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 22:49:56,878 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-16 22:49:56,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-16 22:49:57,234 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-16 22:49:57,303 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-16 22:49:57,304 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 22:49:57,304 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 22:49:57,317 INFO L256 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 30 conjuncts are in the unsatisfiable core [2025-03-16 22:49:57,327 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 22:49:57,726 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 22:49:57,726 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-16 22:50:03,868 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 22:50:03,868 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-16 22:50:03,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1145206305] [2025-03-16 22:50:03,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1145206305] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-16 22:50:03,868 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-16 22:50:03,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2025-03-16 22:50:03,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502371998] [2025-03-16 22:50:03,868 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-16 22:50:03,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-16 22:50:03,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-16 22:50:03,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-16 22:50:03,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-03-16 22:50:03,870 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 22:50:04,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 22:50:04,104 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2025-03-16 22:50:04,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-16 22:50:04,104 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2025-03-16 22:50:04,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 22:50:04,105 INFO L225 Difference]: With dead ends: 14 [2025-03-16 22:50:04,105 INFO L226 Difference]: Without dead ends: 12 [2025-03-16 22:50:04,105 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2025-03-16 22:50:04,106 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 2 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-16 22:50:04,106 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 14 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-16 22:50:04,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2025-03-16 22:50:04,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2025-03-16 22:50:04,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 22:50:04,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2025-03-16 22:50:04,108 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2025-03-16 22:50:04,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 22:50:04,108 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2025-03-16 22:50:04,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 22:50:04,108 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2025-03-16 22:50:04,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-03-16 22:50:04,108 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 22:50:04,108 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2025-03-16 22:50:04,118 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-16 22:50:04,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 22:50:04,313 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 22:50:04,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 22:50:04,313 INFO L85 PathProgramCache]: Analyzing trace with hash 55678175, now seen corresponding path program 2 times [2025-03-16 22:50:04,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-16 22:50:04,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1844045255] [2025-03-16 22:50:04,315 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-16 22:50:04,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 22:50:04,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 22:50:04,316 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-16 22:50:04,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-16 22:50:04,655 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 10 statements into 2 equivalence classes. [2025-03-16 22:50:04,779 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 10 of 10 statements. [2025-03-16 22:50:04,779 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-16 22:50:04,779 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 22:50:04,788 INFO L256 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 64 conjuncts are in the unsatisfiable core [2025-03-16 22:50:04,802 INFO L279 TraceCheckSpWp]: Computing forward predicates...