./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.2.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.2.prop1-func-interl.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 686e0476f4ae49b21a7ab6baa56f3f70e72f3953edc1251a2c9d1a62b00bd909 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 23:37:54,772 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 23:37:54,819 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-07 23:37:54,822 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 23:37:54,823 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 23:37:54,848 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 23:37:54,849 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 23:37:54,849 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 23:37:54,849 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 23:37:54,849 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 23:37:54,849 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 23:37:54,849 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 23:37:54,849 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 23:37:54,849 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 23:37:54,850 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 23:37:54,850 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 23:37:54,850 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 23:37:54,850 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-07 23:37:54,850 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 23:37:54,850 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 23:37:54,850 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 23:37:54,850 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 23:37:54,850 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 23:37:54,850 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 23:37:54,850 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 23:37:54,850 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 23:37:54,850 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 23:37:54,850 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 23:37:54,850 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 23:37:54,850 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 23:37:54,850 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 23:37:54,851 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 23:37:54,851 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 23:37:54,851 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 23:37:54,851 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-07 23:37:54,851 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-07 23:37:54,851 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 23:37:54,851 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 23:37:54,851 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 23:37:54,851 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 23:37:54,851 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 686e0476f4ae49b21a7ab6baa56f3f70e72f3953edc1251a2c9d1a62b00bd909 [2025-02-07 23:37:55,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 23:37:55,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 23:37:55,075 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 23:37:55,076 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 23:37:55,076 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 23:37:55,077 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.2.prop1-func-interl.c [2025-02-07 23:37:56,140 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e0f394e1c/af5f5a23bbfe4eb9aaecea31d3b7820d/FLAG3412dba0f [2025-02-07 23:37:56,491 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 23:37:56,495 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.2.prop1-func-interl.c [2025-02-07 23:37:56,512 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e0f394e1c/af5f5a23bbfe4eb9aaecea31d3b7820d/FLAG3412dba0f [2025-02-07 23:37:56,717 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e0f394e1c/af5f5a23bbfe4eb9aaecea31d3b7820d [2025-02-07 23:37:56,721 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 23:37:56,723 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 23:37:56,725 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 23:37:56,725 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 23:37:56,732 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 23:37:56,732 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 11:37:56" (1/1) ... [2025-02-07 23:37:56,733 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78573d59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:37:56, skipping insertion in model container [2025-02-07 23:37:56,733 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 11:37:56" (1/1) ... [2025-02-07 23:37:56,789 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 23:37:56,932 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.2.prop1-func-interl.c[1175,1188] [2025-02-07 23:37:57,216 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 23:37:57,235 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 23:37:57,246 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.2.prop1-func-interl.c[1175,1188] [2025-02-07 23:37:57,380 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 23:37:57,394 INFO L204 MainTranslator]: Completed translation [2025-02-07 23:37:57,394 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:37:57 WrapperNode [2025-02-07 23:37:57,394 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 23:37:57,395 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 23:37:57,395 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 23:37:57,396 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 23:37:57,400 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:37:57" (1/1) ... [2025-02-07 23:37:57,453 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:37:57" (1/1) ... [2025-02-07 23:37:57,972 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 4858 [2025-02-07 23:37:57,973 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 23:37:57,973 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 23:37:57,973 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 23:37:57,973 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 23:37:57,988 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:37:57" (1/1) ... [2025-02-07 23:37:57,988 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:37:57" (1/1) ... [2025-02-07 23:37:58,121 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:37:57" (1/1) ... [2025-02-07 23:37:58,206 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-07 23:37:58,206 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:37:57" (1/1) ... [2025-02-07 23:37:58,206 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:37:57" (1/1) ... [2025-02-07 23:37:58,334 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:37:57" (1/1) ... [2025-02-07 23:37:58,347 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:37:57" (1/1) ... [2025-02-07 23:37:58,371 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:37:57" (1/1) ... [2025-02-07 23:37:58,391 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:37:57" (1/1) ... [2025-02-07 23:37:58,431 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 23:37:58,433 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 23:37:58,433 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 23:37:58,433 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 23:37:58,435 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:37:57" (1/1) ... [2025-02-07 23:37:58,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 23:37:58,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 23:37:58,462 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-07 23:37:58,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-07 23:37:58,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 23:37:58,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-07 23:37:58,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 23:37:58,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 23:37:58,730 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 23:37:58,731 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 23:38:02,763 INFO L? ?]: Removed 2709 outVars from TransFormulas that were not future-live. [2025-02-07 23:38:02,763 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 23:38:02,966 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 23:38:02,967 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 23:38:02,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 11:38:02 BoogieIcfgContainer [2025-02-07 23:38:02,968 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 23:38:02,970 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 23:38:02,970 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 23:38:02,973 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 23:38:02,974 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 11:37:56" (1/3) ... [2025-02-07 23:38:02,974 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44e2af71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 11:38:02, skipping insertion in model container [2025-02-07 23:38:02,974 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:37:57" (2/3) ... [2025-02-07 23:38:02,974 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44e2af71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 11:38:02, skipping insertion in model container [2025-02-07 23:38:02,975 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 11:38:02" (3/3) ... [2025-02-07 23:38:02,975 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.peterson.2.prop1-func-interl.c [2025-02-07 23:38:02,988 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 23:38:02,990 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.peterson.2.prop1-func-interl.c that has 1 procedures, 1668 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-07 23:38:03,066 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 23:38:03,077 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;@2fa353d6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 23:38:03,077 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-07 23:38:03,086 INFO L276 IsEmpty]: Start isEmpty. Operand has 1668 states, 1666 states have (on average 1.5) internal successors, (2499), 1667 states have internal predecessors, (2499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:38:03,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2025-02-07 23:38:03,094 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:38:03,094 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, 1] [2025-02-07 23:38:03,095 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:38:03,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:38:03,100 INFO L85 PathProgramCache]: Analyzing trace with hash -2046437184, now seen corresponding path program 1 times [2025-02-07 23:38:03,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:38:03,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259609548] [2025-02-07 23:38:03,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:38:03,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:38:03,201 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 106 statements into 1 equivalence classes. [2025-02-07 23:38:03,338 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 106 of 106 statements. [2025-02-07 23:38:03,339 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:38:03,339 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:38:04,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:38:04,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:38:04,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259609548] [2025-02-07 23:38:04,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259609548] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:38:04,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:38:04,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-07 23:38:04,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397003937] [2025-02-07 23:38:04,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:38:04,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-07 23:38:04,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:38:04,053 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-07 23:38:04,053 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-07 23:38:04,057 INFO L87 Difference]: Start difference. First operand has 1668 states, 1666 states have (on average 1.5) internal successors, (2499), 1667 states have internal predecessors, (2499), 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 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:38:06,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:38:06,371 INFO L93 Difference]: Finished difference Result 4762 states and 7139 transitions. [2025-02-07 23:38:06,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-07 23:38:06,372 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 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 106 [2025-02-07 23:38:06,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:38:06,390 INFO L225 Difference]: With dead ends: 4762 [2025-02-07 23:38:06,390 INFO L226 Difference]: Without dead ends: 3207 [2025-02-07 23:38:06,396 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 [2025-02-07 23:38:06,398 INFO L435 NwaCegarLoop]: 1603 mSDtfsCounter, 2383 mSDsluCounter, 4697 mSDsCounter, 0 mSdLazyCounter, 3515 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2383 SdHoareTripleChecker+Valid, 6300 SdHoareTripleChecker+Invalid, 3515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2025-02-07 23:38:06,398 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2383 Valid, 6300 Invalid, 3515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3515 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2025-02-07 23:38:06,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3207 states. [2025-02-07 23:38:06,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3207 to 1744. [2025-02-07 23:38:06,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1744 states, 1743 states have (on average 1.4985656913367758) internal successors, (2612), 1743 states have internal predecessors, (2612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:38:06,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1744 states to 1744 states and 2612 transitions. [2025-02-07 23:38:06,509 INFO L78 Accepts]: Start accepts. Automaton has 1744 states and 2612 transitions. Word has length 106 [2025-02-07 23:38:06,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:38:06,513 INFO L471 AbstractCegarLoop]: Abstraction has 1744 states and 2612 transitions. [2025-02-07 23:38:06,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:38:06,513 INFO L276 IsEmpty]: Start isEmpty. Operand 1744 states and 2612 transitions. [2025-02-07 23:38:06,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2025-02-07 23:38:06,515 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:38:06,515 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, 1, 1] [2025-02-07 23:38:06,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-07 23:38:06,516 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:38:06,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:38:06,516 INFO L85 PathProgramCache]: Analyzing trace with hash 749385034, now seen corresponding path program 1 times [2025-02-07 23:38:06,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:38:06,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870198695] [2025-02-07 23:38:06,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:38:06,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:38:06,542 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes. [2025-02-07 23:38:06,554 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements. [2025-02-07 23:38:06,555 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:38:06,555 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:38:06,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:38:06,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:38:06,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870198695] [2025-02-07 23:38:06,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870198695] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:38:06,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:38:06,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-07 23:38:06,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470078285] [2025-02-07 23:38:06,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:38:06,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-07 23:38:06,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:38:06,784 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-07 23:38:06,784 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 23:38:06,784 INFO L87 Difference]: Start difference. First operand 1744 states and 2612 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:38:07,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:38:07,368 INFO L93 Difference]: Finished difference Result 1748 states and 2616 transitions. [2025-02-07 23:38:07,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-07 23:38:07,369 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 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 107 [2025-02-07 23:38:07,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:38:07,374 INFO L225 Difference]: With dead ends: 1748 [2025-02-07 23:38:07,374 INFO L226 Difference]: Without dead ends: 1746 [2025-02-07 23:38:07,375 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 [2025-02-07 23:38:07,375 INFO L435 NwaCegarLoop]: 2079 mSDtfsCounter, 0 mSDsluCounter, 4153 mSDsCounter, 0 mSdLazyCounter, 1255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6232 SdHoareTripleChecker+Invalid, 1255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-07 23:38:07,375 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6232 Invalid, 1255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1255 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-07 23:38:07,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1746 states. [2025-02-07 23:38:07,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1746 to 1746. [2025-02-07 23:38:07,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1746 states, 1745 states have (on average 1.4979942693409742) internal successors, (2614), 1745 states have internal predecessors, (2614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:38:07,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1746 states to 1746 states and 2614 transitions. [2025-02-07 23:38:07,411 INFO L78 Accepts]: Start accepts. Automaton has 1746 states and 2614 transitions. Word has length 107 [2025-02-07 23:38:07,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:38:07,412 INFO L471 AbstractCegarLoop]: Abstraction has 1746 states and 2614 transitions. [2025-02-07 23:38:07,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:38:07,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1746 states and 2614 transitions. [2025-02-07 23:38:07,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2025-02-07 23:38:07,417 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:38:07,417 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, 1, 1, 1] [2025-02-07 23:38:07,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-07 23:38:07,417 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:38:07,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:38:07,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1760781265, now seen corresponding path program 1 times [2025-02-07 23:38:07,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:38:07,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196246444] [2025-02-07 23:38:07,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:38:07,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:38:07,457 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 108 statements into 1 equivalence classes. [2025-02-07 23:38:07,478 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 108 of 108 statements. [2025-02-07 23:38:07,478 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:38:07,478 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:38:07,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:38:07,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:38:07,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196246444] [2025-02-07 23:38:07,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196246444] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:38:07,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:38:07,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-07 23:38:07,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163172719] [2025-02-07 23:38:07,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:38:07,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-07 23:38:07,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:38:07,694 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-07 23:38:07,694 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 23:38:07,694 INFO L87 Difference]: Start difference. First operand 1746 states and 2614 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:38:08,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:38:08,269 INFO L93 Difference]: Finished difference Result 3303 states and 4946 transitions. [2025-02-07 23:38:08,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-07 23:38:08,269 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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 108 [2025-02-07 23:38:08,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:38:08,274 INFO L225 Difference]: With dead ends: 3303 [2025-02-07 23:38:08,274 INFO L226 Difference]: Without dead ends: 1748 [2025-02-07 23:38:08,276 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 [2025-02-07 23:38:08,276 INFO L435 NwaCegarLoop]: 2079 mSDtfsCounter, 0 mSDsluCounter, 4150 mSDsCounter, 0 mSdLazyCounter, 1258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6229 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-07 23:38:08,277 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6229 Invalid, 1258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1258 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-07 23:38:08,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1748 states. [2025-02-07 23:38:08,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1748 to 1748. [2025-02-07 23:38:08,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1748 states, 1747 states have (on average 1.497424155695478) internal successors, (2616), 1747 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:38:08,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1748 states to 1748 states and 2616 transitions. [2025-02-07 23:38:08,300 INFO L78 Accepts]: Start accepts. Automaton has 1748 states and 2616 transitions. Word has length 108 [2025-02-07 23:38:08,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:38:08,300 INFO L471 AbstractCegarLoop]: Abstraction has 1748 states and 2616 transitions. [2025-02-07 23:38:08,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:38:08,300 INFO L276 IsEmpty]: Start isEmpty. Operand 1748 states and 2616 transitions. [2025-02-07 23:38:08,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2025-02-07 23:38:08,301 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:38:08,301 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, 1, 1, 1, 1] [2025-02-07 23:38:08,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-07 23:38:08,301 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:38:08,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:38:08,302 INFO L85 PathProgramCache]: Analyzing trace with hash 681156133, now seen corresponding path program 1 times [2025-02-07 23:38:08,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:38:08,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630618519] [2025-02-07 23:38:08,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:38:08,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:38:08,327 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-02-07 23:38:08,340 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-02-07 23:38:08,340 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:38:08,340 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:38:08,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:38:08,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:38:08,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630618519] [2025-02-07 23:38:08,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630618519] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:38:08,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:38:08,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-07 23:38:08,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412703114] [2025-02-07 23:38:08,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:38:08,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-07 23:38:08,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:38:08,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-07 23:38:08,463 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 23:38:08,463 INFO L87 Difference]: Start difference. First operand 1748 states and 2616 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:38:09,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:38:09,037 INFO L93 Difference]: Finished difference Result 3307 states and 4950 transitions. [2025-02-07 23:38:09,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-07 23:38:09,037 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 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 109 [2025-02-07 23:38:09,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:38:09,042 INFO L225 Difference]: With dead ends: 3307 [2025-02-07 23:38:09,042 INFO L226 Difference]: Without dead ends: 1750 [2025-02-07 23:38:09,044 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 [2025-02-07 23:38:09,045 INFO L435 NwaCegarLoop]: 2079 mSDtfsCounter, 0 mSDsluCounter, 4145 mSDsCounter, 0 mSdLazyCounter, 1263 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6224 SdHoareTripleChecker+Invalid, 1263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-07 23:38:09,045 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6224 Invalid, 1263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1263 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-07 23:38:09,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1750 states. [2025-02-07 23:38:09,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1750 to 1750. [2025-02-07 23:38:09,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1750 states, 1749 states have (on average 1.4968553459119496) internal successors, (2618), 1749 states have internal predecessors, (2618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:38:09,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1750 states to 1750 states and 2618 transitions. [2025-02-07 23:38:09,070 INFO L78 Accepts]: Start accepts. Automaton has 1750 states and 2618 transitions. Word has length 109 [2025-02-07 23:38:09,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:38:09,070 INFO L471 AbstractCegarLoop]: Abstraction has 1750 states and 2618 transitions. [2025-02-07 23:38:09,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:38:09,071 INFO L276 IsEmpty]: Start isEmpty. Operand 1750 states and 2618 transitions. [2025-02-07 23:38:09,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2025-02-07 23:38:09,071 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:38:09,071 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, 1, 1, 1, 1, 1] [2025-02-07 23:38:09,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-07 23:38:09,071 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:38:09,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:38:09,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1529368694, now seen corresponding path program 1 times [2025-02-07 23:38:09,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:38:09,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23927418] [2025-02-07 23:38:09,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:38:09,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:38:09,095 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-02-07 23:38:09,112 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-02-07 23:38:09,112 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:38:09,112 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:38:09,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:38:09,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:38:09,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23927418] [2025-02-07 23:38:09,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23927418] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:38:09,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:38:09,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-07 23:38:09,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856055894] [2025-02-07 23:38:09,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:38:09,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-07 23:38:09,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:38:09,292 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-07 23:38:09,292 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-07 23:38:09,292 INFO L87 Difference]: Start difference. First operand 1750 states and 2618 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:38:11,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:38:11,614 INFO L93 Difference]: Finished difference Result 4778 states and 7149 transitions. [2025-02-07 23:38:11,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-07 23:38:11,614 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 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 110 [2025-02-07 23:38:11,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:38:11,623 INFO L225 Difference]: With dead ends: 4778 [2025-02-07 23:38:11,623 INFO L226 Difference]: Without dead ends: 3219 [2025-02-07 23:38:11,625 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-07 23:38:11,625 INFO L435 NwaCegarLoop]: 1604 mSDtfsCounter, 2381 mSDsluCounter, 4697 mSDsCounter, 0 mSdLazyCounter, 3514 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2381 SdHoareTripleChecker+Valid, 6301 SdHoareTripleChecker+Invalid, 3514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2025-02-07 23:38:11,625 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2381 Valid, 6301 Invalid, 3514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3514 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2025-02-07 23:38:11,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3219 states. [2025-02-07 23:38:11,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3219 to 1751. [2025-02-07 23:38:11,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1751 states, 1750 states have (on average 1.4965714285714287) internal successors, (2619), 1750 states have internal predecessors, (2619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:38:11,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1751 states to 1751 states and 2619 transitions. [2025-02-07 23:38:11,655 INFO L78 Accepts]: Start accepts. Automaton has 1751 states and 2619 transitions. Word has length 110 [2025-02-07 23:38:11,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:38:11,655 INFO L471 AbstractCegarLoop]: Abstraction has 1751 states and 2619 transitions. [2025-02-07 23:38:11,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:38:11,655 INFO L276 IsEmpty]: Start isEmpty. Operand 1751 states and 2619 transitions. [2025-02-07 23:38:11,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2025-02-07 23:38:11,656 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:38:11,656 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, 1, 1, 1, 1, 1, 1] [2025-02-07 23:38:11,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-07 23:38:11,656 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:38:11,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:38:11,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1186016771, now seen corresponding path program 1 times [2025-02-07 23:38:11,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:38:11,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163106467] [2025-02-07 23:38:11,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:38:11,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:38:11,679 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 111 statements into 1 equivalence classes. [2025-02-07 23:38:11,701 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 111 of 111 statements. [2025-02-07 23:38:11,701 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:38:11,701 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:38:11,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:38:11,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:38:11,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163106467] [2025-02-07 23:38:11,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163106467] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:38:11,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:38:11,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-07 23:38:11,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116626352] [2025-02-07 23:38:11,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:38:11,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-07 23:38:11,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:38:11,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-07 23:38:11,881 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-07 23:38:11,881 INFO L87 Difference]: Start difference. First operand 1751 states and 2619 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:38:13,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:38:13,489 INFO L93 Difference]: Finished difference Result 3308 states and 4950 transitions. [2025-02-07 23:38:13,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-07 23:38:13,489 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 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 111 [2025-02-07 23:38:13,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:38:13,494 INFO L225 Difference]: With dead ends: 3308 [2025-02-07 23:38:13,494 INFO L226 Difference]: Without dead ends: 1749 [2025-02-07 23:38:13,495 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-02-07 23:38:13,495 INFO L435 NwaCegarLoop]: 1596 mSDtfsCounter, 2402 mSDsluCounter, 3182 mSDsCounter, 0 mSdLazyCounter, 2695 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2402 SdHoareTripleChecker+Valid, 4778 SdHoareTripleChecker+Invalid, 2696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-02-07 23:38:13,496 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2402 Valid, 4778 Invalid, 2696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2695 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-02-07 23:38:13,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1749 states. [2025-02-07 23:38:13,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1749 to 1749. [2025-02-07 23:38:13,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1749 states, 1748 states have (on average 1.4959954233409611) internal successors, (2615), 1748 states have internal predecessors, (2615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:38:13,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1749 states to 1749 states and 2615 transitions. [2025-02-07 23:38:13,520 INFO L78 Accepts]: Start accepts. Automaton has 1749 states and 2615 transitions. Word has length 111 [2025-02-07 23:38:13,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:38:13,521 INFO L471 AbstractCegarLoop]: Abstraction has 1749 states and 2615 transitions. [2025-02-07 23:38:13,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:38:13,521 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states and 2615 transitions. [2025-02-07 23:38:13,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2025-02-07 23:38:13,521 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:38:13,522 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, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:38:13,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-07 23:38:13,522 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:38:13,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:38:13,522 INFO L85 PathProgramCache]: Analyzing trace with hash -456688122, now seen corresponding path program 1 times [2025-02-07 23:38:13,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:38:13,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689074629] [2025-02-07 23:38:13,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:38:13,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:38:13,548 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 112 statements into 1 equivalence classes. [2025-02-07 23:38:13,569 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 112 of 112 statements. [2025-02-07 23:38:13,569 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:38:13,569 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 23:38:13,570 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-07 23:38:13,580 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 112 statements into 1 equivalence classes. [2025-02-07 23:38:13,599 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 112 of 112 statements. [2025-02-07 23:38:13,599 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:38:13,599 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 23:38:13,664 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-07 23:38:13,665 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-07 23:38:13,665 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-07 23:38:13,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-07 23:38:13,669 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:38:13,740 WARN L310 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2025-02-07 23:38:13,759 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-07 23:38:13,764 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 11:38:13 BoogieIcfgContainer [2025-02-07 23:38:13,765 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-07 23:38:13,765 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-07 23:38:13,765 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-07 23:38:13,766 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-07 23:38:13,767 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 11:38:02" (3/4) ... [2025-02-07 23:38:13,768 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-07 23:38:13,769 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-07 23:38:13,769 INFO L158 Benchmark]: Toolchain (without parser) took 17046.26ms. Allocated memory was 142.6MB in the beginning and 604.0MB in the end (delta: 461.4MB). Free memory was 111.1MB in the beginning and 366.1MB in the end (delta: -255.0MB). Peak memory consumption was 206.3MB. Max. memory is 16.1GB. [2025-02-07 23:38:13,769 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 124.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 23:38:13,770 INFO L158 Benchmark]: CACSL2BoogieTranslator took 669.97ms. Allocated memory is still 142.6MB. Free memory was 110.6MB in the beginning and 47.2MB in the end (delta: 63.4MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-02-07 23:38:13,770 INFO L158 Benchmark]: Boogie Procedure Inliner took 577.54ms. Allocated memory was 142.6MB in the beginning and 151.0MB in the end (delta: 8.4MB). Free memory was 47.2MB in the beginning and 43.5MB in the end (delta: 3.7MB). Peak memory consumption was 83.9MB. Max. memory is 16.1GB. [2025-02-07 23:38:13,771 INFO L158 Benchmark]: Boogie Preprocessor took 458.16ms. Allocated memory was 151.0MB in the beginning and 394.3MB in the end (delta: 243.3MB). Free memory was 43.5MB in the beginning and 262.8MB in the end (delta: -219.4MB). Peak memory consumption was 47.2MB. Max. memory is 16.1GB. [2025-02-07 23:38:13,771 INFO L158 Benchmark]: IcfgBuilder took 4534.84ms. Allocated memory was 394.3MB in the beginning and 788.5MB in the end (delta: 394.3MB). Free memory was 262.8MB in the beginning and 363.6MB in the end (delta: -100.8MB). Peak memory consumption was 320.4MB. Max. memory is 16.1GB. [2025-02-07 23:38:13,771 INFO L158 Benchmark]: TraceAbstraction took 10794.98ms. Allocated memory was 788.5MB in the beginning and 604.0MB in the end (delta: -184.5MB). Free memory was 363.6MB in the beginning and 366.2MB in the end (delta: -2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 23:38:13,772 INFO L158 Benchmark]: Witness Printer took 3.45ms. Allocated memory is still 604.0MB. Free memory was 366.2MB in the beginning and 366.1MB in the end (delta: 41.9kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 23:38:13,773 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 124.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 669.97ms. Allocated memory is still 142.6MB. Free memory was 110.6MB in the beginning and 47.2MB in the end (delta: 63.4MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 577.54ms. Allocated memory was 142.6MB in the beginning and 151.0MB in the end (delta: 8.4MB). Free memory was 47.2MB in the beginning and 43.5MB in the end (delta: 3.7MB). Peak memory consumption was 83.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 458.16ms. Allocated memory was 151.0MB in the beginning and 394.3MB in the end (delta: 243.3MB). Free memory was 43.5MB in the beginning and 262.8MB in the end (delta: -219.4MB). Peak memory consumption was 47.2MB. Max. memory is 16.1GB. * IcfgBuilder took 4534.84ms. Allocated memory was 394.3MB in the beginning and 788.5MB in the end (delta: 394.3MB). Free memory was 262.8MB in the beginning and 363.6MB in the end (delta: -100.8MB). Peak memory consumption was 320.4MB. Max. memory is 16.1GB. * TraceAbstraction took 10794.98ms. Allocated memory was 788.5MB in the beginning and 604.0MB in the end (delta: -184.5MB). Free memory was 363.6MB in the beginning and 366.2MB in the end (delta: -2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.45ms. Allocated memory is still 604.0MB. Free memory was 366.2MB in the beginning and 366.1MB in the end (delta: 41.9kB). 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 225, overapproximation of bitwiseAnd at line 223. 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_30 = 0; [L40] const SORT_4 var_63 = 1; [L41] const SORT_4 var_64 = 0; [L42] const SORT_2 var_74 = 0; [L43] const SORT_3 var_90 = 0; [L44] const SORT_2 var_95 = 2; [L45] const SORT_2 var_101 = 1; [L46] const SORT_4 var_121 = 2; [L47] const SORT_4 var_229 = 3; [L48] const SORT_2 var_251 = 3; [L50] SORT_1 input_73; [L51] SORT_1 input_75; [L52] SORT_1 input_79; [L53] SORT_1 input_80; [L54] SORT_1 input_84; [L55] SORT_1 input_85; [L56] SORT_1 input_89; [L57] SORT_1 input_96; [L58] SORT_1 input_102; [L59] SORT_1 input_132; [L60] SORT_1 input_135; [L61] SORT_1 input_139; [L62] SORT_1 input_146; [L63] SORT_1 input_149; [L64] SORT_1 input_153; [L65] SORT_1 input_160; [L66] SORT_1 input_163; [L67] SORT_1 input_167; [L68] SORT_1 input_177; [L69] SORT_1 input_195; [L70] SORT_1 input_213; [L72] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_101=1, var_121=2, var_229=3, var_251=3, var_30=0, var_5=0, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L72] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L73] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_101=1, var_121=2, var_229=3, var_251=3, var_30=0, var_5=0, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L73] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L74] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_101=1, var_121=2, var_229=3, var_251=3, var_30=0, var_5=0, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L74] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L75] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_101=1, var_121=2, var_229=3, var_251=3, var_30=0, var_5=0, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L75] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L76] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_101=1, var_121=2, var_229=3, var_251=3, var_30=0, var_5=0, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L76] SORT_2 state_14 = __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, var_101=1, var_121=2, var_229=3, var_251=3, var_30=0, var_5=0, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L77] SORT_2 state_16 = __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, var_101=1, var_121=2, var_229=3, var_251=3, var_30=0, var_5=0, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L78] SORT_2 state_18 = __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, var_101=1, var_121=2, var_229=3, var_251=3, var_30=0, var_5=0, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L79] SORT_2 state_20 = __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, var_101=1, var_121=2, var_229=3, var_251=3, var_30=0, var_5=0, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L80] SORT_2 state_22 = __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, var_101=1, var_121=2, var_229=3, var_251=3, var_30=0, var_5=0, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L81] SORT_2 state_24 = __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, var_101=1, var_121=2, var_229=3, var_251=3, var_30=0, var_5=0, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L82] SORT_2 state_26 = __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, var_101=1, var_121=2, var_229=3, var_251=3, var_30=0, var_5=0, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L83] SORT_2 state_28 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L84] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_101=1, var_121=2, var_229=3, var_251=3, var_30=0, var_5=0, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L84] SORT_1 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L85] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_101=1, var_121=2, var_229=3, var_251=3, var_30=0, var_5=0, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L85] SORT_1 state_33 = __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, var_101=1, var_121=2, var_229=3, var_251=3, var_30=0, var_5=0, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L86] SORT_1 state_35 = __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, var_101=1, var_121=2, var_229=3, var_251=3, var_30=0, var_5=0, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L87] SORT_1 state_37 = __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, var_101=1, var_121=2, var_229=3, var_251=3, var_30=0, var_5=0, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L88] SORT_1 state_39 = __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, var_101=1, var_121=2, var_229=3, var_251=3, var_30=0, var_5=0, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L89] SORT_1 state_41 = __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, var_101=1, var_121=2, var_229=3, var_251=3, var_30=0, var_5=0, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L90] SORT_1 state_43 = __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, var_101=1, var_121=2, var_229=3, var_251=3, var_30=0, var_5=0, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L91] SORT_1 state_45 = __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, var_101=1, var_121=2, var_229=3, var_251=3, var_30=0, var_5=0, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L92] SORT_1 state_47 = __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, var_101=1, var_121=2, var_229=3, var_251=3, var_30=0, var_5=0, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L93] SORT_1 state_49 = __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, var_101=1, var_121=2, var_229=3, var_251=3, var_30=0, var_5=0, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L94] SORT_1 state_51 = __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, var_101=1, var_121=2, var_229=3, var_251=3, var_30=0, var_5=0, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L95] SORT_1 state_53 = __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, var_101=1, var_121=2, var_229=3, var_251=3, var_30=0, var_5=0, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L96] SORT_1 state_55 = __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, var_101=1, var_121=2, var_229=3, var_251=3, var_30=0, var_5=0, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L97] SORT_1 state_57 = __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, var_101=1, var_121=2, var_229=3, var_251=3, var_30=0, var_5=0, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L98] SORT_1 state_59 = __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, var_101=1, var_121=2, var_229=3, var_251=3, var_30=0, var_5=0, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L99] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L101] SORT_2 init_7_arg_1 = var_5; [L102] state_6 = init_7_arg_1 [L103] SORT_2 init_9_arg_1 = var_5; [L104] state_8 = init_9_arg_1 [L105] SORT_2 init_11_arg_1 = var_5; [L106] state_10 = init_11_arg_1 [L107] SORT_2 init_13_arg_1 = var_5; [L108] state_12 = init_13_arg_1 [L109] SORT_2 init_15_arg_1 = var_5; [L110] state_14 = init_15_arg_1 [L111] SORT_2 init_17_arg_1 = var_5; [L112] state_16 = init_17_arg_1 [L113] SORT_2 init_19_arg_1 = var_5; [L114] state_18 = init_19_arg_1 [L115] SORT_2 init_21_arg_1 = var_5; [L116] state_20 = init_21_arg_1 [L117] SORT_2 init_23_arg_1 = var_5; [L118] state_22 = init_23_arg_1 [L119] SORT_2 init_25_arg_1 = var_5; [L120] state_24 = init_25_arg_1 [L121] SORT_2 init_27_arg_1 = var_5; [L122] state_26 = init_27_arg_1 [L123] SORT_2 init_29_arg_1 = var_5; [L124] state_28 = init_29_arg_1 [L125] SORT_1 init_32_arg_1 = var_30; [L126] state_31 = init_32_arg_1 [L127] SORT_1 init_34_arg_1 = var_30; [L128] state_33 = init_34_arg_1 [L129] SORT_1 init_36_arg_1 = var_30; [L130] state_35 = init_36_arg_1 [L131] SORT_1 init_38_arg_1 = var_30; [L132] state_37 = init_38_arg_1 [L133] SORT_1 init_40_arg_1 = var_30; [L134] state_39 = init_40_arg_1 [L135] SORT_1 init_42_arg_1 = var_30; [L136] state_41 = init_42_arg_1 [L137] SORT_1 init_44_arg_1 = var_30; [L138] state_43 = init_44_arg_1 [L139] SORT_1 init_46_arg_1 = var_30; [L140] state_45 = init_46_arg_1 [L141] SORT_1 init_48_arg_1 = var_30; [L142] state_47 = init_48_arg_1 [L143] SORT_1 init_50_arg_1 = var_30; [L144] state_49 = init_50_arg_1 [L145] SORT_1 init_52_arg_1 = var_30; [L146] state_51 = init_52_arg_1 [L147] SORT_1 init_54_arg_1 = var_30; [L148] state_53 = init_54_arg_1 [L149] SORT_1 init_56_arg_1 = var_30; [L150] state_55 = init_56_arg_1 [L151] SORT_1 init_58_arg_1 = var_30; [L152] state_57 = init_58_arg_1 [L153] SORT_1 init_60_arg_1 = var_30; [L154] state_59 = init_60_arg_1 [L155] SORT_1 init_62_arg_1 = var_30; [L156] state_61 = init_62_arg_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=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_6=0, state_8=0, var_101=1, var_121=2, var_229=3, var_251=3, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L159] input_73 = __VERIFIER_nondet_uchar() [L160] EXPR input_73 & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=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_6=0, state_8=0, var_101=1, var_121=2, var_229=3, var_251=3, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L160] input_73 = input_73 & mask_SORT_1 [L161] input_75 = __VERIFIER_nondet_uchar() [L162] EXPR input_75 & mask_SORT_1 VAL [input_73=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=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_6=0, state_8=0, var_101=1, var_121=2, var_229=3, var_251=3, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L162] input_75 = input_75 & mask_SORT_1 [L163] input_79 = __VERIFIER_nondet_uchar() [L164] EXPR input_79 & mask_SORT_1 VAL [input_73=0, input_75=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=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_6=0, state_8=0, var_101=1, var_121=2, var_229=3, var_251=3, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L164] input_79 = input_79 & mask_SORT_1 [L165] input_80 = __VERIFIER_nondet_uchar() [L166] EXPR input_80 & mask_SORT_1 VAL [input_73=0, input_75=0, input_79=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=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_6=0, state_8=0, var_101=1, var_121=2, var_229=3, var_251=3, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L166] input_80 = input_80 & mask_SORT_1 [L167] input_84 = __VERIFIER_nondet_uchar() [L168] EXPR input_84 & mask_SORT_1 VAL [input_73=0, input_75=0, input_79=0, input_80=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=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_6=0, state_8=0, var_101=1, var_121=2, var_229=3, var_251=3, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L168] input_84 = input_84 & mask_SORT_1 [L169] input_85 = __VERIFIER_nondet_uchar() [L170] EXPR input_85 & mask_SORT_1 VAL [input_73=0, input_75=0, input_79=0, input_80=0, input_84=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=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_6=0, state_8=0, var_101=1, var_121=2, var_229=3, var_251=3, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L170] input_85 = input_85 & mask_SORT_1 [L171] input_89 = __VERIFIER_nondet_uchar() [L172] EXPR input_89 & mask_SORT_1 VAL [input_73=0, input_75=0, input_79=0, input_80=0, input_84=0, input_85=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=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_6=0, state_8=0, var_101=1, var_121=2, var_229=3, var_251=3, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L172] input_89 = input_89 & mask_SORT_1 [L173] input_96 = __VERIFIER_nondet_uchar() [L174] EXPR input_96 & mask_SORT_1 VAL [input_73=0, input_75=0, input_79=0, input_80=0, input_84=0, input_85=0, input_89=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=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_6=0, state_8=0, var_101=1, var_121=2, var_229=3, var_251=3, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L174] input_96 = input_96 & mask_SORT_1 [L175] input_102 = __VERIFIER_nondet_uchar() [L176] EXPR input_102 & mask_SORT_1 VAL [input_73=0, input_75=0, input_79=0, input_80=0, input_84=0, input_85=0, input_89=0, input_96=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=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_6=0, state_8=0, var_101=1, var_121=2, var_229=3, var_251=3, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L176] input_102 = input_102 & mask_SORT_1 [L177] input_132 = __VERIFIER_nondet_uchar() [L178] EXPR input_132 & mask_SORT_1 VAL [input_102=0, input_73=0, input_75=0, input_79=0, input_80=0, input_84=0, input_85=0, input_89=0, input_96=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=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_6=0, state_8=0, var_101=1, var_121=2, var_229=3, var_251=3, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L178] input_132 = input_132 & mask_SORT_1 [L179] input_135 = __VERIFIER_nondet_uchar() [L180] EXPR input_135 & mask_SORT_1 VAL [input_102=0, input_132=0, input_73=0, input_75=0, input_79=0, input_80=0, input_84=0, input_85=0, input_89=0, input_96=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=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_6=0, state_8=0, var_101=1, var_121=2, var_229=3, var_251=3, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L180] input_135 = input_135 & mask_SORT_1 [L181] input_139 = __VERIFIER_nondet_uchar() [L182] EXPR input_139 & mask_SORT_1 VAL [input_102=0, input_132=0, input_135=0, input_73=0, input_75=0, input_79=0, input_80=0, input_84=0, input_85=0, input_89=0, input_96=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=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_6=0, state_8=0, var_101=1, var_121=2, var_229=3, var_251=3, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L182] input_139 = input_139 & mask_SORT_1 [L183] input_146 = __VERIFIER_nondet_uchar() [L184] EXPR input_146 & mask_SORT_1 VAL [input_102=0, input_132=0, input_135=0, input_139=0, input_73=0, input_75=0, input_79=0, input_80=0, input_84=0, input_85=0, input_89=0, input_96=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=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_6=0, state_8=0, var_101=1, var_121=2, var_229=3, var_251=3, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L184] input_146 = input_146 & mask_SORT_1 [L185] input_149 = __VERIFIER_nondet_uchar() [L186] EXPR input_149 & mask_SORT_1 VAL [input_102=0, input_132=0, input_135=0, input_139=0, input_146=0, input_73=0, input_75=0, input_79=0, input_80=0, input_84=0, input_85=0, input_89=0, input_96=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=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_6=0, state_8=0, var_101=1, var_121=2, var_229=3, var_251=3, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L186] input_149 = input_149 & mask_SORT_1 [L187] input_153 = __VERIFIER_nondet_uchar() [L188] EXPR input_153 & mask_SORT_1 VAL [input_102=0, input_132=0, input_135=0, input_139=0, input_146=0, input_149=0, input_73=0, input_75=0, input_79=0, input_80=0, input_84=0, input_85=0, input_89=0, input_96=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=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_6=0, state_8=0, var_101=1, var_121=2, var_229=3, var_251=3, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L188] input_153 = input_153 & mask_SORT_1 [L189] input_160 = __VERIFIER_nondet_uchar() [L190] EXPR input_160 & mask_SORT_1 VAL [input_102=0, input_132=0, input_135=0, input_139=0, input_146=0, input_149=0, input_153=0, input_73=0, input_75=0, input_79=0, input_80=0, input_84=0, input_85=0, input_89=0, input_96=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=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_6=0, state_8=0, var_101=1, var_121=2, var_229=3, var_251=3, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L190] input_160 = input_160 & mask_SORT_1 [L191] input_163 = __VERIFIER_nondet_uchar() [L192] EXPR input_163 & mask_SORT_1 VAL [input_102=0, input_132=0, input_135=0, input_139=0, input_146=0, input_149=0, input_153=0, input_160=0, input_73=0, input_75=0, input_79=0, input_80=0, input_84=0, input_85=0, input_89=0, input_96=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=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_6=0, state_8=0, var_101=1, var_121=2, var_229=3, var_251=3, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L192] input_163 = input_163 & mask_SORT_1 [L193] input_167 = __VERIFIER_nondet_uchar() [L194] EXPR input_167 & mask_SORT_1 VAL [input_102=0, input_132=0, input_135=0, input_139=0, input_146=0, input_149=0, input_153=0, input_160=0, input_163=0, input_73=0, input_75=0, input_79=0, input_80=0, input_84=0, input_85=0, input_89=0, input_96=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=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_6=0, state_8=0, var_101=1, var_121=2, var_229=3, var_251=3, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L194] input_167 = input_167 & mask_SORT_1 [L195] input_177 = __VERIFIER_nondet_uchar() [L196] input_195 = __VERIFIER_nondet_uchar() [L197] input_213 = __VERIFIER_nondet_uchar() [L200] SORT_1 var_65_arg_0 = state_33; [L201] SORT_4 var_65_arg_1 = var_63; [L202] SORT_4 var_65_arg_2 = var_64; [L203] SORT_4 var_65 = var_65_arg_0 ? var_65_arg_1 : var_65_arg_2; [L204] SORT_1 var_66_arg_0 = state_43; [L205] SORT_4 var_66_arg_1 = var_63; [L206] SORT_4 var_66_arg_2 = var_64; [L207] SORT_4 var_66 = var_66_arg_0 ? var_66_arg_1 : var_66_arg_2; [L208] SORT_4 var_67_arg_0 = var_65; [L209] SORT_4 var_67_arg_1 = var_66; [L210] SORT_4 var_67 = var_67_arg_0 + var_67_arg_1; [L211] SORT_1 var_68_arg_0 = state_53; [L212] SORT_4 var_68_arg_1 = var_63; [L213] SORT_4 var_68_arg_2 = var_64; [L214] SORT_4 var_68 = var_68_arg_0 ? var_68_arg_1 : var_68_arg_2; [L215] SORT_4 var_69_arg_0 = var_67; [L216] SORT_4 var_69_arg_1 = var_68; [L217] SORT_4 var_69 = var_69_arg_0 + var_69_arg_1; VAL [input_102=0, input_132=0, input_135=0, input_139=0, input_146=0, input_149=0, input_153=0, input_160=0, input_163=0, input_167=0, input_73=0, input_75=0, input_79=0, input_80=0, input_84=0, input_85=0, input_89=0, input_96=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=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_6=0, state_8=0, var_101=1, var_121=2, var_229=3, var_251=3, var_63=1, var_64=0, var_69=0, var_74=0, var_90=0, var_95=2] [L218] EXPR var_69 & mask_SORT_4 VAL [input_102=0, input_132=0, input_135=0, input_139=0, input_146=0, input_149=0, input_153=0, input_160=0, input_163=0, input_167=0, input_73=0, input_75=0, input_79=0, input_80=0, input_84=0, input_85=0, input_89=0, input_96=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=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_6=0, state_8=0, var_101=1, var_121=2, var_229=3, var_251=3, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L218] var_69 = var_69 & mask_SORT_4 [L219] SORT_4 var_70_arg_0 = var_69; [L220] SORT_4 var_70_arg_1 = var_63; [L221] SORT_1 var_70 = var_70_arg_0 <= var_70_arg_1; [L222] SORT_1 var_71_arg_0 = ~state_61; VAL [input_102=0, input_132=0, input_135=0, input_139=0, input_146=0, input_149=0, input_153=0, input_160=0, input_163=0, input_167=0, input_73=0, input_75=0, input_79=0, input_80=0, input_84=0, input_85=0, input_89=0, input_96=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=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_6=0, state_8=0, var_101=1, var_121=2, var_229=3, var_251=3, var_63=1, var_64=0, var_70=1, var_71_arg_0=-1, var_74=0, var_90=0, var_95=2] [L223] EXPR var_71_arg_0 & mask_SORT_1 VAL [input_102=0, input_132=0, input_135=0, input_139=0, input_146=0, input_149=0, input_153=0, input_160=0, input_163=0, input_167=0, input_73=0, input_75=0, input_79=0, input_80=0, input_84=0, input_85=0, input_89=0, input_96=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=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_6=0, state_8=0, var_101=1, var_121=2, var_229=3, var_251=3, var_63=1, var_64=0, var_70=1, var_74=0, var_90=0, var_95=2] [L223] var_71_arg_0 = var_71_arg_0 & mask_SORT_1 [L224] SORT_1 var_71_arg_1 = ~var_70; VAL [input_102=0, input_132=0, input_135=0, input_139=0, input_146=0, input_149=0, input_153=0, input_160=0, input_163=0, input_167=0, input_73=0, input_75=0, input_79=0, input_80=0, input_84=0, input_85=0, input_89=0, input_96=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=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_6=0, state_8=0, var_101=1, var_121=2, var_229=3, var_251=3, var_63=1, var_64=0, var_71_arg_0=1, var_71_arg_1=-2, var_74=0, var_90=0, var_95=2] [L225] EXPR var_71_arg_1 & mask_SORT_1 VAL [input_102=0, input_132=0, input_135=0, input_139=0, input_146=0, input_149=0, input_153=0, input_160=0, input_163=0, input_167=0, input_73=0, input_75=0, input_79=0, input_80=0, input_84=0, input_85=0, input_89=0, input_96=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=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_6=0, state_8=0, var_101=1, var_121=2, var_229=3, var_251=3, var_63=1, var_64=0, var_71_arg_0=1, var_74=0, var_90=0, var_95=2] [L225] var_71_arg_1 = var_71_arg_1 & mask_SORT_1 [L226] EXPR var_71_arg_0 & var_71_arg_1 VAL [input_102=0, input_132=0, input_135=0, input_139=0, input_146=0, input_149=0, input_153=0, input_160=0, input_163=0, input_167=0, input_73=0, input_75=0, input_79=0, input_80=0, input_84=0, input_85=0, input_89=0, input_96=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=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_6=0, state_8=0, var_101=1, var_121=2, var_229=3, var_251=3, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L226] SORT_1 var_71 = var_71_arg_0 & var_71_arg_1; [L227] EXPR var_71 & mask_SORT_1 VAL [input_102=0, input_132=0, input_135=0, input_139=0, input_146=0, input_149=0, input_153=0, input_160=0, input_163=0, input_167=0, input_73=0, input_75=0, input_79=0, input_80=0, input_84=0, input_85=0, input_89=0, input_96=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=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_6=0, state_8=0, var_101=1, var_121=2, var_229=3, var_251=3, var_63=1, var_64=0, var_74=0, var_90=0, var_95=2] [L227] var_71 = var_71 & mask_SORT_1 [L228] SORT_1 bad_72_arg_0 = var_71; [L229] CALL __VERIFIER_assert(!(bad_72_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1668 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.6s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7166 SdHoareTripleChecker+Valid, 7.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7166 mSDsluCounter, 36064 SdHoareTripleChecker+Invalid, 6.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 25024 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13500 IncrementalHoareTripleChecker+Invalid, 13501 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 11040 mSDtfsCounter, 13500 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1751occurred in iteration=5, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 2931 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 763 NumberOfCodeBlocks, 763 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 645 ConstructedInterpolants, 0 QuantifiedInterpolants, 2588 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 [2025-02-07 23:38:13,798 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, 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-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.2.prop1-func-interl.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 686e0476f4ae49b21a7ab6baa56f3f70e72f3953edc1251a2c9d1a62b00bd909 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 23:38:15,769 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 23:38:15,842 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2025-02-07 23:38:15,846 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 23:38:15,846 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 23:38:15,890 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 23:38:15,891 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 23:38:15,891 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 23:38:15,891 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 23:38:15,891 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 23:38:15,891 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 23:38:15,891 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 23:38:15,891 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 23:38:15,891 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 23:38:15,891 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 23:38:15,892 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 23:38:15,892 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 23:38:15,892 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 23:38:15,892 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 23:38:15,892 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 23:38:15,892 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 23:38:15,892 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-07 23:38:15,892 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-07 23:38:15,892 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-07 23:38:15,892 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 23:38:15,892 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 23:38:15,892 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 23:38:15,892 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 23:38:15,892 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 23:38:15,892 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 23:38:15,892 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 23:38:15,892 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 23:38:15,892 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 23:38:15,893 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 23:38:15,893 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 23:38:15,893 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 23:38:15,893 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-07 23:38:15,893 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-07 23:38:15,893 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 23:38:15,893 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 23:38:15,893 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 23:38:15,893 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 23:38:15,893 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 686e0476f4ae49b21a7ab6baa56f3f70e72f3953edc1251a2c9d1a62b00bd909 [2025-02-07 23:38:16,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 23:38:16,168 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 23:38:16,170 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 23:38:16,170 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 23:38:16,171 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 23:38:16,171 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.2.prop1-func-interl.c [2025-02-07 23:38:17,357 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/61a27ae0c/69234e23477f469f8eef1cb53abb58bd/FLAG8069eeebf [2025-02-07 23:38:17,613 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 23:38:17,614 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.2.prop1-func-interl.c [2025-02-07 23:38:17,629 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/61a27ae0c/69234e23477f469f8eef1cb53abb58bd/FLAG8069eeebf [2025-02-07 23:38:17,924 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/61a27ae0c/69234e23477f469f8eef1cb53abb58bd [2025-02-07 23:38:17,926 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 23:38:17,927 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 23:38:17,927 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 23:38:17,927 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 23:38:17,930 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 23:38:17,930 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 11:38:17" (1/1) ... [2025-02-07 23:38:17,931 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6493234c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:38:17, skipping insertion in model container [2025-02-07 23:38:17,931 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 11:38:17" (1/1) ... [2025-02-07 23:38:17,961 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 23:38:18,054 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.2.prop1-func-interl.c[1175,1188] [2025-02-07 23:38:18,247 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 23:38:18,255 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 23:38:18,266 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.2.prop1-func-interl.c[1175,1188] [2025-02-07 23:38:18,330 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 23:38:18,341 INFO L204 MainTranslator]: Completed translation [2025-02-07 23:38:18,342 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:38:18 WrapperNode [2025-02-07 23:38:18,342 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 23:38:18,343 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 23:38:18,343 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 23:38:18,343 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 23:38:18,347 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:38:18" (1/1) ... [2025-02-07 23:38:18,381 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:38:18" (1/1) ... [2025-02-07 23:38:18,461 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1538 [2025-02-07 23:38:18,461 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 23:38:18,462 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 23:38:18,462 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 23:38:18,462 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 23:38:18,471 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:38:18" (1/1) ... [2025-02-07 23:38:18,472 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:38:18" (1/1) ... [2025-02-07 23:38:18,480 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:38:18" (1/1) ... [2025-02-07 23:38:18,516 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-07 23:38:18,516 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:38:18" (1/1) ... [2025-02-07 23:38:18,516 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:38:18" (1/1) ... [2025-02-07 23:38:18,548 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:38:18" (1/1) ... [2025-02-07 23:38:18,554 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:38:18" (1/1) ... [2025-02-07 23:38:18,583 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:38:18" (1/1) ... [2025-02-07 23:38:18,589 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:38:18" (1/1) ... [2025-02-07 23:38:18,601 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 23:38:18,602 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 23:38:18,602 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 23:38:18,602 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 23:38:18,603 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:38:18" (1/1) ... [2025-02-07 23:38:18,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 23:38:18,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 23:38:18,631 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-07 23:38:18,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-07 23:38:18,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 23:38:18,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-07 23:38:18,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 23:38:18,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 23:38:18,964 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 23:38:18,965 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 23:38:20,038 INFO L? ?]: Removed 84 outVars from TransFormulas that were not future-live. [2025-02-07 23:38:20,038 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 23:38:20,045 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 23:38:20,045 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 23:38:20,046 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 11:38:20 BoogieIcfgContainer [2025-02-07 23:38:20,046 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 23:38:20,047 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 23:38:20,047 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 23:38:20,050 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 23:38:20,050 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 11:38:17" (1/3) ... [2025-02-07 23:38:20,051 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@766bd06a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 11:38:20, skipping insertion in model container [2025-02-07 23:38:20,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:38:18" (2/3) ... [2025-02-07 23:38:20,052 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@766bd06a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 11:38:20, skipping insertion in model container [2025-02-07 23:38:20,052 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 11:38:20" (3/3) ... [2025-02-07 23:38:20,053 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.peterson.2.prop1-func-interl.c [2025-02-07 23:38:20,064 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 23:38:20,065 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.peterson.2.prop1-func-interl.c that has 1 procedures, 8 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-07 23:38:20,095 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 23:38:20,103 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;@22db6bbc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 23:38:20,104 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-07 23:38:20,107 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:38:20,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-02-07 23:38:20,110 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:38:20,111 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-02-07 23:38:20,111 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:38:20,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:38:20,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1137951, now seen corresponding path program 1 times [2025-02-07 23:38:20,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-07 23:38:20,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [499892412] [2025-02-07 23:38:20,124 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:38:20,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-07 23:38:20,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 23:38:20,128 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-07 23:38:20,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-07 23:38:20,377 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-07 23:38:20,403 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-07 23:38:20,403 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:38:20,403 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:38:20,409 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 34 conjuncts are in the unsatisfiable core [2025-02-07 23:38:20,419 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-07 23:38:20,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:38:20,626 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-07 23:38:20,627 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-07 23:38:20,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [499892412] [2025-02-07 23:38:20,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [499892412] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:38:20,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:38:20,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-07 23:38:20,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102543460] [2025-02-07 23:38:20,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:38:20,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-07 23:38:20,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-07 23:38:20,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-07 23:38:20,647 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 23:38:20,648 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:38:20,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:38:20,768 INFO L93 Difference]: Finished difference Result 16 states and 21 transitions. [2025-02-07 23:38:20,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-07 23:38:20,771 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2025-02-07 23:38:20,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:38:20,775 INFO L225 Difference]: With dead ends: 16 [2025-02-07 23:38:20,777 INFO L226 Difference]: Without dead ends: 9 [2025-02-07 23:38:20,779 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-07 23:38:20,781 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 2 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-07 23:38:20,781 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 8 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-07 23:38:20,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2025-02-07 23:38:20,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2025-02-07 23:38:20,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:38:20,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2025-02-07 23:38:20,801 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2025-02-07 23:38:20,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:38:20,801 INFO L471 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2025-02-07 23:38:20,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:38:20,801 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2025-02-07 23:38:20,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-02-07 23:38:20,802 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:38:20,802 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2025-02-07 23:38:20,809 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-07 23:38:21,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-07 23:38:21,003 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:38:21,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:38:21,003 INFO L85 PathProgramCache]: Analyzing trace with hash -458170295, now seen corresponding path program 1 times [2025-02-07 23:38:21,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-07 23:38:21,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1225218774] [2025-02-07 23:38:21,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:38:21,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-07 23:38:21,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 23:38:21,008 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-07 23:38:21,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-07 23:38:21,299 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-07 23:38:21,363 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-07 23:38:21,363 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:38:21,363 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:38:21,372 INFO L256 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 48 conjuncts are in the unsatisfiable core [2025-02-07 23:38:21,385 INFO L279 TraceCheckSpWp]: Computing forward predicates...