./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.4.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 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.anderson.4.prop1-func-interl.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 eabdf7e4bea5ef7f4041734b3a2f250c3105df8bde0bca39b57a9665da865e25 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 16:33:38,070 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 16:33:38,129 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-03 16:33:38,133 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 16:33:38,134 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 16:33:38,154 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 16:33:38,155 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 16:33:38,155 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 16:33:38,155 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 16:33:38,155 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 16:33:38,156 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 16:33:38,156 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 16:33:38,156 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 16:33:38,157 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 16:33:38,157 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 16:33:38,157 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 16:33:38,157 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 16:33:38,157 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-03 16:33:38,157 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 16:33:38,157 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 16:33:38,158 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 16:33:38,158 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 16:33:38,158 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 16:33:38,158 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 16:33:38,158 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 16:33:38,158 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 16:33:38,158 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 16:33:38,158 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 16:33:38,158 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 16:33:38,158 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 16:33:38,159 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 16:33:38,159 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 16:33:38,159 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 16:33:38,159 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 16:33:38,159 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-03 16:33:38,159 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-03 16:33:38,159 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 16:33:38,159 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 16:33:38,159 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 16:33:38,159 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 16:33:38,159 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 -> eabdf7e4bea5ef7f4041734b3a2f250c3105df8bde0bca39b57a9665da865e25 [2025-03-03 16:33:38,365 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 16:33:38,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 16:33:38,380 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 16:33:38,381 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 16:33:38,381 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 16:33:38,382 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.4.prop1-func-interl.c [2025-03-03 16:33:39,485 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84429703c/5fda64654da842cca7b217a7c1d59765/FLAG9f9b73977 [2025-03-03 16:33:39,833 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 16:33:39,834 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.4.prop1-func-interl.c [2025-03-03 16:33:39,851 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84429703c/5fda64654da842cca7b217a7c1d59765/FLAG9f9b73977 [2025-03-03 16:33:40,053 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84429703c/5fda64654da842cca7b217a7c1d59765 [2025-03-03 16:33:40,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 16:33:40,057 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 16:33:40,057 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 16:33:40,057 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 16:33:40,060 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 16:33:40,061 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 04:33:40" (1/1) ... [2025-03-03 16:33:40,061 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6583c169 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:33:40, skipping insertion in model container [2025-03-03 16:33:40,061 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 04:33:40" (1/1) ... [2025-03-03 16:33:40,103 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 16:33:40,228 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.anderson.4.prop1-func-interl.c[1175,1188] [2025-03-03 16:33:40,521 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 16:33:40,527 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 16:33:40,535 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.anderson.4.prop1-func-interl.c[1175,1188] [2025-03-03 16:33:40,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 16:33:40,698 INFO L204 MainTranslator]: Completed translation [2025-03-03 16:33:40,698 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:33:40 WrapperNode [2025-03-03 16:33:40,699 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 16:33:40,699 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 16:33:40,699 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 16:33:40,700 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 16:33:40,706 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:33:40" (1/1) ... [2025-03-03 16:33:40,750 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:33:40" (1/1) ... [2025-03-03 16:33:41,212 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 6358 [2025-03-03 16:33:41,212 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 16:33:41,213 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 16:33:41,213 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 16:33:41,213 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 16:33:41,220 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:33:40" (1/1) ... [2025-03-03 16:33:41,220 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:33:40" (1/1) ... [2025-03-03 16:33:41,388 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:33:40" (1/1) ... [2025-03-03 16:33:41,476 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]. [2025-03-03 16:33:41,476 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:33:40" (1/1) ... [2025-03-03 16:33:41,477 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:33:40" (1/1) ... [2025-03-03 16:33:41,595 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:33:40" (1/1) ... [2025-03-03 16:33:41,615 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:33:40" (1/1) ... [2025-03-03 16:33:41,638 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:33:40" (1/1) ... [2025-03-03 16:33:41,656 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:33:40" (1/1) ... [2025-03-03 16:33:41,716 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 16:33:41,717 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 16:33:41,717 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 16:33:41,717 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 16:33:41,718 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:33:40" (1/1) ... [2025-03-03 16:33:41,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 16:33:41,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 16:33:41,740 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) [2025-03-03 16:33:41,744 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 [2025-03-03 16:33:41,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 16:33:41,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-03 16:33:41,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 16:33:41,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 16:33:42,052 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 16:33:42,053 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 16:33:47,527 INFO L? ?]: Removed 3510 outVars from TransFormulas that were not future-live. [2025-03-03 16:33:47,527 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 16:33:47,742 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 16:33:47,742 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 16:33:47,742 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 04:33:47 BoogieIcfgContainer [2025-03-03 16:33:47,742 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 16:33:47,744 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 16:33:47,744 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 16:33:47,749 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 16:33:47,749 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 04:33:40" (1/3) ... [2025-03-03 16:33:47,749 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74ec4548 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 04:33:47, skipping insertion in model container [2025-03-03 16:33:47,750 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:33:40" (2/3) ... [2025-03-03 16:33:47,750 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74ec4548 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 04:33:47, skipping insertion in model container [2025-03-03 16:33:47,750 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 04:33:47" (3/3) ... [2025-03-03 16:33:47,752 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.anderson.4.prop1-func-interl.c [2025-03-03 16:33:47,764 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 16:33:47,766 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.anderson.4.prop1-func-interl.c that has 1 procedures, 2220 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-03 16:33:47,850 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 16:33:47,860 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;@64558fdf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 16:33:47,860 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-03 16:33:47,871 INFO L276 IsEmpty]: Start isEmpty. Operand has 2220 states, 2218 states have (on average 1.5036068530207394) internal successors, (3335), 2219 states have internal predecessors, (3335), 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) [2025-03-03 16:33:47,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2025-03-03 16:33:47,881 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:33:47,881 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 16:33:47,882 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:33:47,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:33:47,888 INFO L85 PathProgramCache]: Analyzing trace with hash 135234850, now seen corresponding path program 1 times [2025-03-03 16:33:47,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:33:47,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805457824] [2025-03-03 16:33:47,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:33:47,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:33:48,003 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-03-03 16:33:48,078 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-03-03 16:33:48,078 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:33:48,078 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:33:48,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 16:33:48,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:33:48,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805457824] [2025-03-03 16:33:48,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805457824] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:33:48,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:33:48,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 16:33:48,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625323253] [2025-03-03 16:33:48,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:33:48,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 16:33:48,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:33:48,728 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 16:33:48,728 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 16:33:48,733 INFO L87 Difference]: Start difference. First operand has 2220 states, 2218 states have (on average 1.5036068530207394) internal successors, (3335), 2219 states have internal predecessors, (3335), 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 24.75) internal successors, (99), 4 states have internal predecessors, (99), 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) [2025-03-03 16:33:49,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:33:49,678 INFO L93 Difference]: Finished difference Result 4317 states and 6489 transitions. [2025-03-03 16:33:49,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 16:33:49,680 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 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 99 [2025-03-03 16:33:49,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:33:49,698 INFO L225 Difference]: With dead ends: 4317 [2025-03-03 16:33:49,701 INFO L226 Difference]: Without dead ends: 2219 [2025-03-03 16:33:49,707 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 [2025-03-03 16:33:49,709 INFO L435 NwaCegarLoop]: 2781 mSDtfsCounter, 0 mSDsluCounter, 5557 mSDsCounter, 0 mSdLazyCounter, 1654 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8338 SdHoareTripleChecker+Invalid, 1654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-03 16:33:49,709 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8338 Invalid, 1654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1654 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-03 16:33:49,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2219 states. [2025-03-03 16:33:49,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2219 to 2219. [2025-03-03 16:33:49,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2219 states, 2218 states have (on average 1.5027051397655546) internal successors, (3333), 2218 states have internal predecessors, (3333), 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) [2025-03-03 16:33:49,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2219 states to 2219 states and 3333 transitions. [2025-03-03 16:33:49,796 INFO L78 Accepts]: Start accepts. Automaton has 2219 states and 3333 transitions. Word has length 99 [2025-03-03 16:33:49,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:33:49,797 INFO L471 AbstractCegarLoop]: Abstraction has 2219 states and 3333 transitions. [2025-03-03 16:33:49,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 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) [2025-03-03 16:33:49,797 INFO L276 IsEmpty]: Start isEmpty. Operand 2219 states and 3333 transitions. [2025-03-03 16:33:49,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2025-03-03 16:33:49,799 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:33:49,799 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 16:33:49,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-03 16:33:49,800 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:33:49,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:33:49,800 INFO L85 PathProgramCache]: Analyzing trace with hash -98004258, now seen corresponding path program 1 times [2025-03-03 16:33:49,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:33:49,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110588545] [2025-03-03 16:33:49,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:33:49,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:33:49,842 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-03-03 16:33:49,865 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-03-03 16:33:49,869 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:33:49,870 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:33:50,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 16:33:50,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:33:50,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110588545] [2025-03-03 16:33:50,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110588545] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:33:50,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:33:50,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 16:33:50,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412392165] [2025-03-03 16:33:50,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:33:50,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 16:33:50,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:33:50,067 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 16:33:50,068 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 16:33:50,068 INFO L87 Difference]: Start difference. First operand 2219 states and 3333 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2025-03-03 16:33:51,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:33:51,270 INFO L93 Difference]: Finished difference Result 4318 states and 6487 transitions. [2025-03-03 16:33:51,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 16:33:51,270 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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 100 [2025-03-03 16:33:51,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:33:51,279 INFO L225 Difference]: With dead ends: 4318 [2025-03-03 16:33:51,279 INFO L226 Difference]: Without dead ends: 2221 [2025-03-03 16:33:51,281 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 [2025-03-03 16:33:51,282 INFO L435 NwaCegarLoop]: 2781 mSDtfsCounter, 0 mSDsluCounter, 5554 mSDsCounter, 0 mSdLazyCounter, 1657 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8335 SdHoareTripleChecker+Invalid, 1657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-03-03 16:33:51,282 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8335 Invalid, 1657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1657 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-03-03 16:33:51,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2221 states. [2025-03-03 16:33:51,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2221 to 2221. [2025-03-03 16:33:51,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2221 states, 2220 states have (on average 1.5022522522522523) internal successors, (3335), 2220 states have internal predecessors, (3335), 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) [2025-03-03 16:33:51,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2221 states to 2221 states and 3335 transitions. [2025-03-03 16:33:51,317 INFO L78 Accepts]: Start accepts. Automaton has 2221 states and 3335 transitions. Word has length 100 [2025-03-03 16:33:51,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:33:51,317 INFO L471 AbstractCegarLoop]: Abstraction has 2221 states and 3335 transitions. [2025-03-03 16:33:51,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2025-03-03 16:33:51,318 INFO L276 IsEmpty]: Start isEmpty. Operand 2221 states and 3335 transitions. [2025-03-03 16:33:51,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2025-03-03 16:33:51,322 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:33:51,322 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 16:33:51,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-03 16:33:51,323 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:33:51,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:33:51,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1106619235, now seen corresponding path program 1 times [2025-03-03 16:33:51,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:33:51,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427762036] [2025-03-03 16:33:51,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:33:51,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:33:51,361 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-03-03 16:33:51,377 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-03-03 16:33:51,377 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:33:51,377 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:33:51,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 16:33:51,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:33:51,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427762036] [2025-03-03 16:33:51,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427762036] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:33:51,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:33:51,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 16:33:51,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961159735] [2025-03-03 16:33:51,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:33:51,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 16:33:51,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:33:51,529 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 16:33:51,529 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 16:33:51,529 INFO L87 Difference]: Start difference. First operand 2221 states and 3335 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 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) [2025-03-03 16:33:52,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:33:52,344 INFO L93 Difference]: Finished difference Result 4322 states and 6491 transitions. [2025-03-03 16:33:52,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 16:33:52,345 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 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 101 [2025-03-03 16:33:52,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:33:52,352 INFO L225 Difference]: With dead ends: 4322 [2025-03-03 16:33:52,352 INFO L226 Difference]: Without dead ends: 2223 [2025-03-03 16:33:52,354 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 [2025-03-03 16:33:52,355 INFO L435 NwaCegarLoop]: 2781 mSDtfsCounter, 0 mSDsluCounter, 5549 mSDsCounter, 0 mSdLazyCounter, 1662 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8330 SdHoareTripleChecker+Invalid, 1662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-03 16:33:52,355 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8330 Invalid, 1662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1662 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-03 16:33:52,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2223 states. [2025-03-03 16:33:52,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2223 to 2223. [2025-03-03 16:33:52,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2223 states, 2222 states have (on average 1.5018001800180019) internal successors, (3337), 2222 states have internal predecessors, (3337), 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) [2025-03-03 16:33:52,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2223 states to 2223 states and 3337 transitions. [2025-03-03 16:33:52,391 INFO L78 Accepts]: Start accepts. Automaton has 2223 states and 3337 transitions. Word has length 101 [2025-03-03 16:33:52,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:33:52,391 INFO L471 AbstractCegarLoop]: Abstraction has 2223 states and 3337 transitions. [2025-03-03 16:33:52,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 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) [2025-03-03 16:33:52,392 INFO L276 IsEmpty]: Start isEmpty. Operand 2223 states and 3337 transitions. [2025-03-03 16:33:52,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-03-03 16:33:52,392 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:33:52,392 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 16:33:52,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-03 16:33:52,392 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:33:52,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:33:52,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1942908131, now seen corresponding path program 1 times [2025-03-03 16:33:52,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:33:52,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704081062] [2025-03-03 16:33:52,393 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:33:52,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:33:52,423 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-03 16:33:52,437 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-03 16:33:52,437 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:33:52,437 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:33:52,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 16:33:52,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:33:52,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704081062] [2025-03-03 16:33:52,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704081062] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:33:52,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:33:52,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 16:33:52,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333708853] [2025-03-03 16:33:52,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:33:52,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 16:33:52,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:33:52,585 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 16:33:52,585 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 16:33:52,586 INFO L87 Difference]: Start difference. First operand 2223 states and 3337 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 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) [2025-03-03 16:33:53,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:33:53,464 INFO L93 Difference]: Finished difference Result 4332 states and 6503 transitions. [2025-03-03 16:33:53,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 16:33:53,464 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 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 102 [2025-03-03 16:33:53,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:33:53,471 INFO L225 Difference]: With dead ends: 4332 [2025-03-03 16:33:53,471 INFO L226 Difference]: Without dead ends: 2231 [2025-03-03 16:33:53,473 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 [2025-03-03 16:33:53,476 INFO L435 NwaCegarLoop]: 2781 mSDtfsCounter, 3 mSDsluCounter, 5549 mSDsCounter, 0 mSdLazyCounter, 1662 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 8330 SdHoareTripleChecker+Invalid, 1662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-03 16:33:53,477 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 8330 Invalid, 1662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1662 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-03 16:33:53,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2025-03-03 16:33:53,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 2227. [2025-03-03 16:33:53,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2227 states, 2226 states have (on average 1.5017969451931716) internal successors, (3343), 2226 states have internal predecessors, (3343), 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) [2025-03-03 16:33:53,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2227 states to 2227 states and 3343 transitions. [2025-03-03 16:33:53,508 INFO L78 Accepts]: Start accepts. Automaton has 2227 states and 3343 transitions. Word has length 102 [2025-03-03 16:33:53,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:33:53,509 INFO L471 AbstractCegarLoop]: Abstraction has 2227 states and 3343 transitions. [2025-03-03 16:33:53,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 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) [2025-03-03 16:33:53,510 INFO L276 IsEmpty]: Start isEmpty. Operand 2227 states and 3343 transitions. [2025-03-03 16:33:53,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2025-03-03 16:33:53,510 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:33:53,510 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 16:33:53,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-03 16:33:53,511 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:33:53,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:33:53,511 INFO L85 PathProgramCache]: Analyzing trace with hash 800410904, now seen corresponding path program 1 times [2025-03-03 16:33:53,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:33:53,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836627845] [2025-03-03 16:33:53,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:33:53,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:33:53,539 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 103 statements into 1 equivalence classes. [2025-03-03 16:33:53,577 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 103 of 103 statements. [2025-03-03 16:33:53,581 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:33:53,581 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:33:53,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 16:33:53,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:33:53,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836627845] [2025-03-03 16:33:53,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836627845] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:33:53,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:33:53,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-03 16:33:53,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837861520] [2025-03-03 16:33:53,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:33:53,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 16:33:53,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:33:53,819 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 16:33:53,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-03 16:33:53,819 INFO L87 Difference]: Start difference. First operand 2227 states and 3343 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 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) [2025-03-03 16:33:56,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:33:56,545 INFO L93 Difference]: Finished difference Result 6421 states and 9641 transitions. [2025-03-03 16:33:56,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 16:33:56,545 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 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 103 [2025-03-03 16:33:56,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:33:56,556 INFO L225 Difference]: With dead ends: 6421 [2025-03-03 16:33:56,556 INFO L226 Difference]: Without dead ends: 4316 [2025-03-03 16:33:56,559 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-03 16:33:56,559 INFO L435 NwaCegarLoop]: 2170 mSDtfsCounter, 3223 mSDsluCounter, 6405 mSDsCounter, 0 mSdLazyCounter, 4568 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3223 SdHoareTripleChecker+Valid, 8575 SdHoareTripleChecker+Invalid, 4569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2025-03-03 16:33:56,559 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3223 Valid, 8575 Invalid, 4569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4568 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2025-03-03 16:33:56,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4316 states. [2025-03-03 16:33:56,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4316 to 2282. [2025-03-03 16:33:56,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2282 states, 2281 states have (on average 1.501096010521701) internal successors, (3424), 2281 states have internal predecessors, (3424), 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) [2025-03-03 16:33:56,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2282 states to 2282 states and 3424 transitions. [2025-03-03 16:33:56,606 INFO L78 Accepts]: Start accepts. Automaton has 2282 states and 3424 transitions. Word has length 103 [2025-03-03 16:33:56,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:33:56,607 INFO L471 AbstractCegarLoop]: Abstraction has 2282 states and 3424 transitions. [2025-03-03 16:33:56,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 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) [2025-03-03 16:33:56,607 INFO L276 IsEmpty]: Start isEmpty. Operand 2282 states and 3424 transitions. [2025-03-03 16:33:56,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2025-03-03 16:33:56,607 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:33:56,608 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 16:33:56,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-03 16:33:56,608 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:33:56,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:33:56,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1060767750, now seen corresponding path program 1 times [2025-03-03 16:33:56,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:33:56,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429770463] [2025-03-03 16:33:56,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:33:56,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:33:56,650 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-03-03 16:33:56,684 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-03-03 16:33:56,687 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:33:56,687 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:33:56,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 16:33:56,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:33:56,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429770463] [2025-03-03 16:33:56,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429770463] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:33:56,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:33:56,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-03 16:33:56,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148354872] [2025-03-03 16:33:56,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:33:56,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 16:33:56,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:33:56,900 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 16:33:56,900 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-03 16:33:56,901 INFO L87 Difference]: Start difference. First operand 2282 states and 3424 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 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) [2025-03-03 16:33:58,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:33:58,485 INFO L93 Difference]: Finished difference Result 4387 states and 6585 transitions. [2025-03-03 16:33:58,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 16:33:58,485 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 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 104 [2025-03-03 16:33:58,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:33:58,490 INFO L225 Difference]: With dead ends: 4387 [2025-03-03 16:33:58,490 INFO L226 Difference]: Without dead ends: 2282 [2025-03-03 16:33:58,492 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-03 16:33:58,493 INFO L435 NwaCegarLoop]: 2162 mSDtfsCounter, 3237 mSDsluCounter, 4314 mSDsCounter, 0 mSdLazyCounter, 3502 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3237 SdHoareTripleChecker+Valid, 6476 SdHoareTripleChecker+Invalid, 3503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-03-03 16:33:58,493 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3237 Valid, 6476 Invalid, 3503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3502 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-03-03 16:33:58,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2282 states. [2025-03-03 16:33:58,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2282 to 2282. [2025-03-03 16:33:58,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2282 states, 2281 states have (on average 1.4993423936869794) internal successors, (3420), 2281 states have internal predecessors, (3420), 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) [2025-03-03 16:33:58,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2282 states to 2282 states and 3420 transitions. [2025-03-03 16:33:58,521 INFO L78 Accepts]: Start accepts. Automaton has 2282 states and 3420 transitions. Word has length 104 [2025-03-03 16:33:58,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:33:58,522 INFO L471 AbstractCegarLoop]: Abstraction has 2282 states and 3420 transitions. [2025-03-03 16:33:58,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 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) [2025-03-03 16:33:58,522 INFO L276 IsEmpty]: Start isEmpty. Operand 2282 states and 3420 transitions. [2025-03-03 16:33:58,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2025-03-03 16:33:58,523 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:33:58,523 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 16:33:58,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-03 16:33:58,523 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:33:58,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:33:58,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1812761893, now seen corresponding path program 1 times [2025-03-03 16:33:58,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:33:58,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753306045] [2025-03-03 16:33:58,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:33:58,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:33:58,549 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-03 16:33:58,574 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-03 16:33:58,576 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:33:58,576 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-03 16:33:58,576 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-03 16:33:58,589 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-03 16:33:58,615 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-03 16:33:58,615 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:33:58,615 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-03 16:33:58,720 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-03 16:33:58,721 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-03 16:33:58,722 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-03 16:33:58,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-03 16:33:58,726 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2025-03-03 16:33:58,780 WARN L310 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2025-03-03 16:33:58,799 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-03 16:33:58,802 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 04:33:58 BoogieIcfgContainer [2025-03-03 16:33:58,803 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-03 16:33:58,804 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-03 16:33:58,804 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-03 16:33:58,804 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-03 16:33:58,805 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 04:33:47" (3/4) ... [2025-03-03 16:33:58,807 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-03 16:33:58,807 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-03 16:33:58,808 INFO L158 Benchmark]: Toolchain (without parser) took 18751.05ms. Allocated memory was 142.6MB in the beginning and 763.4MB in the end (delta: 620.8MB). Free memory was 108.1MB in the beginning and 583.8MB in the end (delta: -475.6MB). Peak memory consumption was 147.6MB. Max. memory is 16.1GB. [2025-03-03 16:33:58,808 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 127.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 16:33:58,809 INFO L158 Benchmark]: CACSL2BoogieTranslator took 641.50ms. Allocated memory is still 142.6MB. Free memory was 108.1MB in the beginning and 80.0MB in the end (delta: 28.1MB). Peak memory consumption was 100.3MB. Max. memory is 16.1GB. [2025-03-03 16:33:58,809 INFO L158 Benchmark]: Boogie Procedure Inliner took 513.06ms. Allocated memory was 142.6MB in the beginning and 369.1MB in the end (delta: 226.5MB). Free memory was 80.0MB in the beginning and 196.8MB in the end (delta: -116.8MB). Peak memory consumption was 104.4MB. Max. memory is 16.1GB. [2025-03-03 16:33:58,809 INFO L158 Benchmark]: Boogie Preprocessor took 503.08ms. Allocated memory is still 369.1MB. Free memory was 196.8MB in the beginning and 159.5MB in the end (delta: 37.3MB). Peak memory consumption was 79.6MB. Max. memory is 16.1GB. [2025-03-03 16:33:58,810 INFO L158 Benchmark]: IcfgBuilder took 6025.50ms. Allocated memory was 369.1MB in the beginning and 771.8MB in the end (delta: 402.7MB). Free memory was 159.5MB in the beginning and 564.4MB in the end (delta: -404.9MB). Peak memory consumption was 426.4MB. Max. memory is 16.1GB. [2025-03-03 16:33:58,810 INFO L158 Benchmark]: TraceAbstraction took 11059.09ms. Allocated memory was 771.8MB in the beginning and 763.4MB in the end (delta: -8.4MB). Free memory was 564.4MB in the beginning and 583.8MB in the end (delta: -19.5MB). Peak memory consumption was 391.6MB. Max. memory is 16.1GB. [2025-03-03 16:33:58,810 INFO L158 Benchmark]: Witness Printer took 3.21ms. Allocated memory is still 763.4MB. Free memory was 583.8MB in the beginning and 583.8MB in the end (delta: 64.7kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 16:33:58,811 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 127.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 641.50ms. Allocated memory is still 142.6MB. Free memory was 108.1MB in the beginning and 80.0MB in the end (delta: 28.1MB). Peak memory consumption was 100.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 513.06ms. Allocated memory was 142.6MB in the beginning and 369.1MB in the end (delta: 226.5MB). Free memory was 80.0MB in the beginning and 196.8MB in the end (delta: -116.8MB). Peak memory consumption was 104.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 503.08ms. Allocated memory is still 369.1MB. Free memory was 196.8MB in the beginning and 159.5MB in the end (delta: 37.3MB). Peak memory consumption was 79.6MB. Max. memory is 16.1GB. * IcfgBuilder took 6025.50ms. Allocated memory was 369.1MB in the beginning and 771.8MB in the end (delta: 402.7MB). Free memory was 159.5MB in the beginning and 564.4MB in the end (delta: -404.9MB). Peak memory consumption was 426.4MB. Max. memory is 16.1GB. * TraceAbstraction took 11059.09ms. Allocated memory was 771.8MB in the beginning and 763.4MB in the end (delta: -8.4MB). Free memory was 564.4MB in the beginning and 583.8MB in the end (delta: -19.5MB). Peak memory consumption was 391.6MB. Max. memory is 16.1GB. * Witness Printer took 3.21ms. Allocated memory is still 763.4MB. Free memory was 583.8MB in the beginning and 583.8MB in the end (delta: 64.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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 bitwiseAnd at line 239, overapproximation of bitwiseAnd at line 237. 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_2 mask_SORT_2 = (SORT_2)-1 >> (sizeof(SORT_2) * 8 - 8); [L30] const SORT_2 msb_SORT_2 = (SORT_2)1 << (8 - 1); [L32] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 24); [L33] const SORT_3 msb_SORT_3 = (SORT_3)1 << (24 - 1); [L35] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 32); [L36] const SORT_4 msb_SORT_4 = (SORT_4)1 << (32 - 1); [L38] const SORT_2 var_5 = 0; [L39] const SORT_1 var_24 = 0; [L40] const SORT_4 var_67 = 1; [L41] const SORT_4 var_68 = 0; [L42] const SORT_2 var_79 = 1; [L43] const SORT_3 var_81 = 0; [L44] const SORT_4 var_84 = 4; [L45] const SORT_2 var_88 = 0; [L46] const SORT_4 var_155 = 2; [L47] const SORT_2 var_158 = 2; [L48] const SORT_4 var_182 = 3; [L49] const SORT_2 var_185 = 3; [L51] SORT_1 input_80; [L52] SORT_1 input_90; [L53] SORT_1 input_92; [L54] SORT_1 input_99; [L55] SORT_1 input_101; [L56] SORT_1 input_108; [L57] SORT_1 input_110; [L58] SORT_1 input_117; [L59] SORT_1 input_209; [L60] SORT_1 input_213; [L61] SORT_1 input_216; [L62] SORT_1 input_217; [L63] SORT_1 input_218; [L64] SORT_1 input_219; [L65] SORT_1 input_220; [L66] SORT_1 input_221; [L67] SORT_1 input_231; [L68] SORT_1 input_237; [L69] SORT_1 input_243; [L70] SORT_1 input_249; [L71] SORT_1 input_264; [L72] SORT_1 input_282; [L73] SORT_1 input_300; [L74] SORT_1 input_318; [L76] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L76] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L77] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L77] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L78] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L78] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L79] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L79] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L80] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L80] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L81] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L81] SORT_2 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L82] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L82] SORT_2 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L83] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L83] SORT_2 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L84] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L84] SORT_2 state_22 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L85] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L85] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L86] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L86] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L87] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L87] SORT_1 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L88] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L88] SORT_1 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L89] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L89] SORT_1 state_33 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L90] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L90] SORT_1 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L91] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L91] SORT_1 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L92] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L92] SORT_1 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L93] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L93] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L94] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L94] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L95] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L95] SORT_1 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L96] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L96] SORT_1 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L97] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L97] SORT_1 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L98] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L98] SORT_1 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L99] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L99] SORT_1 state_53 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L100] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L100] SORT_1 state_55 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L101] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L101] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L102] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L102] SORT_1 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L103] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L103] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L104] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L104] SORT_1 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L105] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L105] SORT_1 state_65 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L107] SORT_2 init_7_arg_1 = var_5; [L108] state_6 = init_7_arg_1 [L109] SORT_2 init_9_arg_1 = var_5; [L110] state_8 = init_9_arg_1 [L111] SORT_2 init_11_arg_1 = var_5; [L112] state_10 = init_11_arg_1 [L113] SORT_2 init_13_arg_1 = var_5; [L114] state_12 = init_13_arg_1 [L115] SORT_2 init_15_arg_1 = var_5; [L116] state_14 = init_15_arg_1 [L117] SORT_2 init_17_arg_1 = var_5; [L118] state_16 = init_17_arg_1 [L119] SORT_2 init_19_arg_1 = var_5; [L120] state_18 = init_19_arg_1 [L121] SORT_2 init_21_arg_1 = var_5; [L122] state_20 = init_21_arg_1 [L123] SORT_2 init_23_arg_1 = var_5; [L124] state_22 = init_23_arg_1 [L125] SORT_1 init_26_arg_1 = var_24; [L126] state_25 = init_26_arg_1 [L127] SORT_1 init_28_arg_1 = var_24; [L128] state_27 = init_28_arg_1 [L129] SORT_1 init_30_arg_1 = var_24; [L130] state_29 = init_30_arg_1 [L131] SORT_1 init_32_arg_1 = var_24; [L132] state_31 = init_32_arg_1 [L133] SORT_1 init_34_arg_1 = var_24; [L134] state_33 = init_34_arg_1 [L135] SORT_1 init_36_arg_1 = var_24; [L136] state_35 = init_36_arg_1 [L137] SORT_1 init_38_arg_1 = var_24; [L138] state_37 = init_38_arg_1 [L139] SORT_1 init_40_arg_1 = var_24; [L140] state_39 = init_40_arg_1 [L141] SORT_1 init_42_arg_1 = var_24; [L142] state_41 = init_42_arg_1 [L143] SORT_1 init_44_arg_1 = var_24; [L144] state_43 = init_44_arg_1 [L145] SORT_1 init_46_arg_1 = var_24; [L146] state_45 = init_46_arg_1 [L147] SORT_1 init_48_arg_1 = var_24; [L148] state_47 = init_48_arg_1 [L149] SORT_1 init_50_arg_1 = var_24; [L150] state_49 = init_50_arg_1 [L151] SORT_1 init_52_arg_1 = var_24; [L152] state_51 = init_52_arg_1 [L153] SORT_1 init_54_arg_1 = var_24; [L154] state_53 = init_54_arg_1 [L155] SORT_1 init_56_arg_1 = var_24; [L156] state_55 = init_56_arg_1 [L157] SORT_1 init_58_arg_1 = var_24; [L158] state_57 = init_58_arg_1 [L159] SORT_1 init_60_arg_1 = var_24; [L160] state_59 = init_60_arg_1 [L161] SORT_1 init_62_arg_1 = var_24; [L162] state_61 = init_62_arg_1 [L163] SORT_1 init_64_arg_1 = var_24; [L164] state_63 = init_64_arg_1 [L165] SORT_1 init_66_arg_1 = var_24; [L166] state_65 = init_66_arg_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_6=0, state_8=0, var_155=2, var_158=2, var_182=3, var_185=3, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L169] input_80 = __VERIFIER_nondet_uchar() [L170] input_90 = __VERIFIER_nondet_uchar() [L171] input_92 = __VERIFIER_nondet_uchar() [L172] input_99 = __VERIFIER_nondet_uchar() [L173] input_101 = __VERIFIER_nondet_uchar() [L174] input_108 = __VERIFIER_nondet_uchar() [L175] input_110 = __VERIFIER_nondet_uchar() [L176] input_117 = __VERIFIER_nondet_uchar() [L177] input_209 = __VERIFIER_nondet_uchar() [L178] EXPR input_209 & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_6=0, state_8=0, var_155=2, var_158=2, var_182=3, var_185=3, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L178] input_209 = input_209 & mask_SORT_1 [L179] input_213 = __VERIFIER_nondet_uchar() [L180] EXPR input_213 & mask_SORT_1 VAL [input_209=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_6=0, state_8=0, var_155=2, var_158=2, var_182=3, var_185=3, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L180] input_213 = input_213 & mask_SORT_1 [L181] input_216 = __VERIFIER_nondet_uchar() [L182] EXPR input_216 & mask_SORT_1 VAL [input_209=0, input_213=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_6=0, state_8=0, var_155=2, var_158=2, var_182=3, var_185=3, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L182] input_216 = input_216 & mask_SORT_1 [L183] input_217 = __VERIFIER_nondet_uchar() [L184] EXPR input_217 & mask_SORT_1 VAL [input_209=0, input_213=0, input_216=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_6=0, state_8=0, var_155=2, var_158=2, var_182=3, var_185=3, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L184] input_217 = input_217 & mask_SORT_1 [L185] input_218 = __VERIFIER_nondet_uchar() [L186] EXPR input_218 & mask_SORT_1 VAL [input_209=0, input_213=0, input_216=0, input_217=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_6=0, state_8=0, var_155=2, var_158=2, var_182=3, var_185=3, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L186] input_218 = input_218 & mask_SORT_1 [L187] input_219 = __VERIFIER_nondet_uchar() [L188] EXPR input_219 & mask_SORT_1 VAL [input_209=0, input_213=0, input_216=0, input_217=0, input_218=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_6=0, state_8=0, var_155=2, var_158=2, var_182=3, var_185=3, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L188] input_219 = input_219 & mask_SORT_1 [L189] input_220 = __VERIFIER_nondet_uchar() [L190] EXPR input_220 & mask_SORT_1 VAL [input_209=0, input_213=0, input_216=0, input_217=0, input_218=0, input_219=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_6=0, state_8=0, var_155=2, var_158=2, var_182=3, var_185=3, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L190] input_220 = input_220 & mask_SORT_1 [L191] input_221 = __VERIFIER_nondet_uchar() [L192] EXPR input_221 & mask_SORT_1 VAL [input_209=0, input_213=0, input_216=0, input_217=0, input_218=0, input_219=0, input_220=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_6=0, state_8=0, var_155=2, var_158=2, var_182=3, var_185=3, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L192] input_221 = input_221 & mask_SORT_1 [L193] input_231 = __VERIFIER_nondet_uchar() [L194] EXPR input_231 & mask_SORT_1 VAL [input_209=0, input_213=0, input_216=0, input_217=0, input_218=0, input_219=0, input_220=0, input_221=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_6=0, state_8=0, var_155=2, var_158=2, var_182=3, var_185=3, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L194] input_231 = input_231 & mask_SORT_1 [L195] input_237 = __VERIFIER_nondet_uchar() [L196] EXPR input_237 & mask_SORT_1 VAL [input_209=0, input_213=0, input_216=0, input_217=0, input_218=0, input_219=0, input_220=0, input_221=0, input_231=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_6=0, state_8=0, var_155=2, var_158=2, var_182=3, var_185=3, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L196] input_237 = input_237 & mask_SORT_1 [L197] input_243 = __VERIFIER_nondet_uchar() [L198] EXPR input_243 & mask_SORT_1 VAL [input_209=0, input_213=0, input_216=0, input_217=0, input_218=0, input_219=0, input_220=0, input_221=0, input_231=0, input_237=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_6=0, state_8=0, var_155=2, var_158=2, var_182=3, var_185=3, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L198] input_243 = input_243 & mask_SORT_1 [L199] input_249 = __VERIFIER_nondet_uchar() [L200] EXPR input_249 & mask_SORT_1 VAL [input_209=0, input_213=0, input_216=0, input_217=0, input_218=0, input_219=0, input_220=0, input_221=0, input_231=0, input_237=0, input_243=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_6=0, state_8=0, var_155=2, var_158=2, var_182=3, var_185=3, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L200] input_249 = input_249 & mask_SORT_1 [L201] input_264 = __VERIFIER_nondet_uchar() [L202] input_282 = __VERIFIER_nondet_uchar() [L203] input_300 = __VERIFIER_nondet_uchar() [L204] input_318 = __VERIFIER_nondet_uchar() [L207] SORT_1 var_69_arg_0 = state_33; [L208] SORT_4 var_69_arg_1 = var_67; [L209] SORT_4 var_69_arg_2 = var_68; [L210] SORT_4 var_69 = var_69_arg_0 ? var_69_arg_1 : var_69_arg_2; [L211] SORT_1 var_70_arg_0 = state_43; [L212] SORT_4 var_70_arg_1 = var_67; [L213] SORT_4 var_70_arg_2 = var_68; [L214] SORT_4 var_70 = var_70_arg_0 ? var_70_arg_1 : var_70_arg_2; [L215] SORT_4 var_71_arg_0 = var_69; [L216] SORT_4 var_71_arg_1 = var_70; [L217] SORT_4 var_71 = var_71_arg_0 + var_71_arg_1; [L218] SORT_1 var_72_arg_0 = state_53; [L219] SORT_4 var_72_arg_1 = var_67; [L220] SORT_4 var_72_arg_2 = var_68; [L221] SORT_4 var_72 = var_72_arg_0 ? var_72_arg_1 : var_72_arg_2; [L222] SORT_4 var_73_arg_0 = var_71; [L223] SORT_4 var_73_arg_1 = var_72; [L224] SORT_4 var_73 = var_73_arg_0 + var_73_arg_1; [L225] SORT_1 var_74_arg_0 = state_63; [L226] SORT_4 var_74_arg_1 = var_67; [L227] SORT_4 var_74_arg_2 = var_68; [L228] SORT_4 var_74 = var_74_arg_0 ? var_74_arg_1 : var_74_arg_2; [L229] SORT_4 var_75_arg_0 = var_73; [L230] SORT_4 var_75_arg_1 = var_74; [L231] SORT_4 var_75 = var_75_arg_0 + var_75_arg_1; VAL [input_209=0, input_213=0, input_216=0, input_217=0, input_218=0, input_219=0, input_220=0, input_221=0, input_231=0, input_237=0, input_243=0, input_249=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_6=0, state_8=0, var_155=2, var_158=2, var_182=3, var_185=3, var_67=1, var_68=0, var_75=0, var_79=1, var_81=0, var_84=4, var_88=0] [L232] EXPR var_75 & mask_SORT_4 VAL [input_209=0, input_213=0, input_216=0, input_217=0, input_218=0, input_219=0, input_220=0, input_221=0, input_231=0, input_237=0, input_243=0, input_249=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_6=0, state_8=0, var_155=2, var_158=2, var_182=3, var_185=3, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L232] var_75 = var_75 & mask_SORT_4 [L233] SORT_4 var_76_arg_0 = var_75; [L234] SORT_4 var_76_arg_1 = var_67; [L235] SORT_1 var_76 = var_76_arg_0 <= var_76_arg_1; [L236] SORT_1 var_77_arg_0 = ~state_65; VAL [input_209=0, input_213=0, input_216=0, input_217=0, input_218=0, input_219=0, input_220=0, input_221=0, input_231=0, input_237=0, input_243=0, input_249=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_6=0, state_8=0, var_155=2, var_158=2, var_182=3, var_185=3, var_67=1, var_68=0, var_76=1, var_77_arg_0=-1, var_79=1, var_81=0, var_84=4, var_88=0] [L237] EXPR var_77_arg_0 & mask_SORT_1 VAL [input_209=0, input_213=0, input_216=0, input_217=0, input_218=0, input_219=0, input_220=0, input_221=0, input_231=0, input_237=0, input_243=0, input_249=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_6=0, state_8=0, var_155=2, var_158=2, var_182=3, var_185=3, var_67=1, var_68=0, var_76=1, var_79=1, var_81=0, var_84=4, var_88=0] [L237] var_77_arg_0 = var_77_arg_0 & mask_SORT_1 [L238] SORT_1 var_77_arg_1 = ~var_76; VAL [input_209=0, input_213=0, input_216=0, input_217=0, input_218=0, input_219=0, input_220=0, input_221=0, input_231=0, input_237=0, input_243=0, input_249=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_6=0, state_8=0, var_155=2, var_158=2, var_182=3, var_185=3, var_67=1, var_68=0, var_77_arg_0=1, var_77_arg_1=-2, var_79=1, var_81=0, var_84=4, var_88=0] [L239] EXPR var_77_arg_1 & mask_SORT_1 VAL [input_209=0, input_213=0, input_216=0, input_217=0, input_218=0, input_219=0, input_220=0, input_221=0, input_231=0, input_237=0, input_243=0, input_249=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_6=0, state_8=0, var_155=2, var_158=2, var_182=3, var_185=3, var_67=1, var_68=0, var_77_arg_0=1, var_79=1, var_81=0, var_84=4, var_88=0] [L239] var_77_arg_1 = var_77_arg_1 & mask_SORT_1 [L240] EXPR var_77_arg_0 & var_77_arg_1 VAL [input_209=0, input_213=0, input_216=0, input_217=0, input_218=0, input_219=0, input_220=0, input_221=0, input_231=0, input_237=0, input_243=0, input_249=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_6=0, state_8=0, var_155=2, var_158=2, var_182=3, var_185=3, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L240] SORT_1 var_77 = var_77_arg_0 & var_77_arg_1; [L241] EXPR var_77 & mask_SORT_1 VAL [input_209=0, input_213=0, input_216=0, input_217=0, input_218=0, input_219=0, input_220=0, input_221=0, input_231=0, input_237=0, input_243=0, input_249=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_6=0, state_8=0, var_155=2, var_158=2, var_182=3, var_185=3, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L241] var_77 = var_77 & mask_SORT_1 [L242] SORT_1 bad_78_arg_0 = var_77; [L243] CALL __VERIFIER_assert(!(bad_78_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 2220 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.9s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6463 SdHoareTripleChecker+Valid, 7.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6463 mSDsluCounter, 48384 SdHoareTripleChecker+Invalid, 6.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 32928 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14705 IncrementalHoareTripleChecker+Invalid, 14707 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 15456 mSDtfsCounter, 14705 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2282occurred in iteration=5, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 2038 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 714 NumberOfCodeBlocks, 714 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 603 ConstructedInterpolants, 0 QuantifiedInterpolants, 1390 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 [2025-03-03 16:33:58,856 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.anderson.4.prop1-func-interl.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 eabdf7e4bea5ef7f4041734b3a2f250c3105df8bde0bca39b57a9665da865e25 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 16:34:00,673 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 16:34:00,739 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2025-03-03 16:34:00,750 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 16:34:00,750 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 16:34:00,777 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 16:34:00,777 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 16:34:00,777 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 16:34:00,778 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 16:34:00,778 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 16:34:00,778 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 16:34:00,778 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 16:34:00,778 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 16:34:00,778 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 16:34:00,778 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 16:34:00,778 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 16:34:00,778 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 16:34:00,778 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 16:34:00,780 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 16:34:00,780 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 16:34:00,780 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 16:34:00,780 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-03 16:34:00,781 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-03 16:34:00,781 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-03 16:34:00,781 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 16:34:00,781 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 16:34:00,781 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 16:34:00,781 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 16:34:00,781 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 16:34:00,781 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 16:34:00,781 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 16:34:00,782 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 16:34:00,782 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 16:34:00,782 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 16:34:00,782 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 16:34:00,782 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 16:34:00,782 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-03 16:34:00,782 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-03 16:34:00,782 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 16:34:00,782 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 16:34:00,782 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 16:34:00,782 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 16:34:00,782 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 -> eabdf7e4bea5ef7f4041734b3a2f250c3105df8bde0bca39b57a9665da865e25 [2025-03-03 16:34:01,010 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 16:34:01,018 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 16:34:01,019 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 16:34:01,020 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 16:34:01,020 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 16:34:01,021 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.4.prop1-func-interl.c [2025-03-03 16:34:02,196 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eefdf4a9c/cc795488b1c64a68b7633dcc4bfd8b2d/FLAG428e5c387 [2025-03-03 16:34:02,502 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 16:34:02,503 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.4.prop1-func-interl.c [2025-03-03 16:34:02,526 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eefdf4a9c/cc795488b1c64a68b7633dcc4bfd8b2d/FLAG428e5c387 [2025-03-03 16:34:02,541 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eefdf4a9c/cc795488b1c64a68b7633dcc4bfd8b2d [2025-03-03 16:34:02,543 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 16:34:02,544 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 16:34:02,546 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 16:34:02,546 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 16:34:02,549 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 16:34:02,549 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 04:34:02" (1/1) ... [2025-03-03 16:34:02,551 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@548c2a00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:34:02, skipping insertion in model container [2025-03-03 16:34:02,551 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 04:34:02" (1/1) ... [2025-03-03 16:34:02,607 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 16:34:02,759 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.anderson.4.prop1-func-interl.c[1175,1188] [2025-03-03 16:34:03,011 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 16:34:03,023 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 16:34:03,030 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.anderson.4.prop1-func-interl.c[1175,1188] [2025-03-03 16:34:03,140 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 16:34:03,150 INFO L204 MainTranslator]: Completed translation [2025-03-03 16:34:03,151 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:34:03 WrapperNode [2025-03-03 16:34:03,151 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 16:34:03,152 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 16:34:03,152 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 16:34:03,152 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 16:34:03,157 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:34:03" (1/1) ... [2025-03-03 16:34:03,186 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:34:03" (1/1) ... [2025-03-03 16:34:03,277 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1906 [2025-03-03 16:34:03,279 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 16:34:03,279 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 16:34:03,279 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 16:34:03,279 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 16:34:03,286 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:34:03" (1/1) ... [2025-03-03 16:34:03,287 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:34:03" (1/1) ... [2025-03-03 16:34:03,300 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:34:03" (1/1) ... [2025-03-03 16:34:03,342 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]. [2025-03-03 16:34:03,342 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:34:03" (1/1) ... [2025-03-03 16:34:03,342 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:34:03" (1/1) ... [2025-03-03 16:34:03,382 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:34:03" (1/1) ... [2025-03-03 16:34:03,386 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:34:03" (1/1) ... [2025-03-03 16:34:03,393 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:34:03" (1/1) ... [2025-03-03 16:34:03,400 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:34:03" (1/1) ... [2025-03-03 16:34:03,437 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 16:34:03,438 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 16:34:03,439 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 16:34:03,439 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 16:34:03,440 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:34:03" (1/1) ... [2025-03-03 16:34:03,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 16:34:03,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 16:34:03,467 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) [2025-03-03 16:34:03,470 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 [2025-03-03 16:34:03,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 16:34:03,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-03 16:34:03,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 16:34:03,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 16:34:03,758 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 16:34:03,759 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 16:34:06,132 INFO L? ?]: Removed 97 outVars from TransFormulas that were not future-live. [2025-03-03 16:34:06,133 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 16:34:06,138 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 16:34:06,139 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 16:34:06,139 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 04:34:06 BoogieIcfgContainer [2025-03-03 16:34:06,139 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 16:34:06,141 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 16:34:06,141 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 16:34:06,145 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 16:34:06,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 04:34:02" (1/3) ... [2025-03-03 16:34:06,145 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bf6c43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 04:34:06, skipping insertion in model container [2025-03-03 16:34:06,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:34:03" (2/3) ... [2025-03-03 16:34:06,145 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bf6c43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 04:34:06, skipping insertion in model container [2025-03-03 16:34:06,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 04:34:06" (3/3) ... [2025-03-03 16:34:06,146 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.anderson.4.prop1-func-interl.c [2025-03-03 16:34:06,156 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 16:34:06,158 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.anderson.4.prop1-func-interl.c that has 1 procedures, 10 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-03 16:34:06,192 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 16:34:06,202 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;@3adb416e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 16:34:06,202 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-03 16:34:06,205 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 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) [2025-03-03 16:34:06,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-03-03 16:34:06,209 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:34:06,209 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-03-03 16:34:06,210 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:34:06,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:34:06,214 INFO L85 PathProgramCache]: Analyzing trace with hash 38140359, now seen corresponding path program 1 times [2025-03-03 16:34:06,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-03 16:34:06,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [219143298] [2025-03-03 16:34:06,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:34:06,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 16:34:06,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 16:34:06,227 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) [2025-03-03 16:34:06,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-03 16:34:06,521 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-03 16:34:06,547 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-03 16:34:06,548 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:34:06,548 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:34:06,553 INFO L256 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 42 conjuncts are in the unsatisfiable core [2025-03-03 16:34:06,565 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 16:34:07,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 16:34:07,011 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 16:34:07,012 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-03 16:34:07,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [219143298] [2025-03-03 16:34:07,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [219143298] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:34:07,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:34:07,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 16:34:07,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566720073] [2025-03-03 16:34:07,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:34:07,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 16:34:07,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-03 16:34:07,030 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 16:34:07,032 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 16:34:07,034 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 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) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2025-03-03 16:34:07,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:34:07,655 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2025-03-03 16:34:07,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 16:34:07,661 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 5 [2025-03-03 16:34:07,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:34:07,665 INFO L225 Difference]: With dead ends: 18 [2025-03-03 16:34:07,665 INFO L226 Difference]: Without dead ends: 10 [2025-03-03 16:34:07,667 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-03 16:34:07,669 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-03 16:34:07,669 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-03 16:34:07,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2025-03-03 16:34:07,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2025-03-03 16:34:07,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 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) [2025-03-03 16:34:07,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2025-03-03 16:34:07,691 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2025-03-03 16:34:07,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:34:07,691 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2025-03-03 16:34:07,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2025-03-03 16:34:07,691 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2025-03-03 16:34:07,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-03 16:34:07,691 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:34:07,691 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2025-03-03 16:34:07,700 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-03 16:34:07,892 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 [2025-03-03 16:34:07,892 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:34:07,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:34:07,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1926026653, now seen corresponding path program 1 times [2025-03-03 16:34:07,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-03 16:34:07,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [244142687] [2025-03-03 16:34:07,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:34:07,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 16:34:07,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 16:34:07,896 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) [2025-03-03 16:34:07,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-03 16:34:08,228 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-03 16:34:08,506 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-03 16:34:08,507 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:34:08,507 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:34:08,548 INFO L256 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 59 conjuncts are in the unsatisfiable core [2025-03-03 16:34:08,561 INFO L279 TraceCheckSpWp]: Computing forward predicates...