./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.2.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.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 77ee3c12bce0e0c115e8aa14d1707fe352f16b7764cd43525551553c3df84286 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 07:17:43,724 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 07:17:43,781 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 07:17:43,789 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 07:17:43,789 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 07:17:43,810 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 07:17:43,810 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 07:17:43,811 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 07:17:43,811 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 07:17:43,811 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 07:17:43,811 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 07:17:43,811 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 07:17:43,811 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 07:17:43,812 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 07:17:43,812 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 07:17:43,812 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 07:17:43,812 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 07:17:43,812 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 07:17:43,812 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 07:17:43,812 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 07:17:43,812 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 07:17:43,812 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 07:17:43,816 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 07:17:43,816 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 07:17:43,817 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 07:17:43,817 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 07:17:43,817 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 07:17:43,817 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 07:17:43,817 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 07:17:43,817 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 07:17:43,817 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 07:17:43,817 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 07:17:43,817 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 07:17:43,817 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 07:17:43,817 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 07:17:43,817 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 07:17:43,817 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 07:17:43,817 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 07:17:43,817 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 07:17:43,817 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 07:17:43,817 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 07:17:43,817 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 07:17:43,817 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 07:17:43,817 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 07:17:43,817 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 07:17:43,818 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 -> 77ee3c12bce0e0c115e8aa14d1707fe352f16b7764cd43525551553c3df84286 [2025-01-09 07:17:44,068 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 07:17:44,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 07:17:44,079 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 07:17:44,080 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 07:17:44,080 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 07:17:44,082 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.2.prop1-func-interl.c [2025-01-09 07:17:45,273 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2d9adc9c7/f03b259c8555459b9fc6d2c6ae81c174/FLAGbc29cdab5 [2025-01-09 07:17:45,580 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 07:17:45,581 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.2.prop1-func-interl.c [2025-01-09 07:17:45,594 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2d9adc9c7/f03b259c8555459b9fc6d2c6ae81c174/FLAGbc29cdab5 [2025-01-09 07:17:45,848 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2d9adc9c7/f03b259c8555459b9fc6d2c6ae81c174 [2025-01-09 07:17:45,850 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 07:17:45,851 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 07:17:45,851 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 07:17:45,852 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 07:17:45,854 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 07:17:45,855 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 07:17:45" (1/1) ... [2025-01-09 07:17:45,855 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@562b388e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:17:45, skipping insertion in model container [2025-01-09 07:17:45,855 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 07:17:45" (1/1) ... [2025-01-09 07:17:45,894 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 07:17:46,042 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.fischer.2.prop1-func-interl.c[1174,1187] [2025-01-09 07:17:46,320 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 07:17:46,327 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 07:17:46,334 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.fischer.2.prop1-func-interl.c[1174,1187] [2025-01-09 07:17:46,438 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 07:17:46,448 INFO L204 MainTranslator]: Completed translation [2025-01-09 07:17:46,450 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:17:46 WrapperNode [2025-01-09 07:17:46,450 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 07:17:46,451 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 07:17:46,451 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 07:17:46,451 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 07:17:46,454 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:17:46" (1/1) ... [2025-01-09 07:17:46,505 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:17:46" (1/1) ... [2025-01-09 07:17:46,917 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 4955 [2025-01-09 07:17:46,917 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 07:17:46,918 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 07:17:46,918 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 07:17:46,918 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 07:17:46,924 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:17:46" (1/1) ... [2025-01-09 07:17:46,924 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:17:46" (1/1) ... [2025-01-09 07:17:47,048 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:17:46" (1/1) ... [2025-01-09 07:17:47,170 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-01-09 07:17:47,170 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:17:46" (1/1) ... [2025-01-09 07:17:47,170 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:17:46" (1/1) ... [2025-01-09 07:17:47,367 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:17:46" (1/1) ... [2025-01-09 07:17:47,381 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:17:46" (1/1) ... [2025-01-09 07:17:47,393 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:17:46" (1/1) ... [2025-01-09 07:17:47,429 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:17:46" (1/1) ... [2025-01-09 07:17:47,452 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:17:46" (1/1) ... [2025-01-09 07:17:47,501 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 07:17:47,504 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 07:17:47,504 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 07:17:47,505 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 07:17:47,505 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:17:46" (1/1) ... [2025-01-09 07:17:47,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 07:17:47,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 07:17:47,526 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 07:17:47,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 07:17:47,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 07:17:47,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 07:17:47,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 07:17:47,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 07:17:47,786 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 07:17:47,788 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 07:17:51,681 INFO L? ?]: Removed 2786 outVars from TransFormulas that were not future-live. [2025-01-09 07:17:51,681 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 07:17:51,711 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 07:17:51,712 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 07:17:51,712 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 07:17:51 BoogieIcfgContainer [2025-01-09 07:17:51,712 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 07:17:51,714 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 07:17:51,714 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 07:17:51,717 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 07:17:51,717 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 07:17:45" (1/3) ... [2025-01-09 07:17:51,718 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7333522d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 07:17:51, skipping insertion in model container [2025-01-09 07:17:51,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:17:46" (2/3) ... [2025-01-09 07:17:51,718 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7333522d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 07:17:51, skipping insertion in model container [2025-01-09 07:17:51,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 07:17:51" (3/3) ... [2025-01-09 07:17:51,719 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.fischer.2.prop1-func-interl.c [2025-01-09 07:17:51,729 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 07:17:51,730 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.fischer.2.prop1-func-interl.c that has 1 procedures, 1738 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 07:17:51,791 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 07:17:51,803 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;@64db1954, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 07:17:51,803 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 07:17:51,812 INFO L276 IsEmpty]: Start isEmpty. Operand has 1738 states, 1736 states have (on average 1.5017281105990783) internal successors, (2607), 1737 states have internal predecessors, (2607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 07:17:51,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2025-01-09 07:17:51,819 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 07:17:51,820 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] [2025-01-09 07:17:51,820 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 07:17:51,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 07:17:51,824 INFO L85 PathProgramCache]: Analyzing trace with hash 2114019558, now seen corresponding path program 1 times [2025-01-09 07:17:51,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 07:17:51,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439451564] [2025-01-09 07:17:51,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 07:17:51,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 07:17:51,934 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-01-09 07:17:52,000 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-01-09 07:17:52,000 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 07:17:52,000 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 07:17:52,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 07:17:52,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 07:17:52,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439451564] [2025-01-09 07:17:52,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439451564] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 07:17:52,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 07:17:52,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 07:17:52,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617434169] [2025-01-09 07:17:52,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 07:17:52,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 07:17:52,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 07:17:52,657 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 07:17:52,657 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 07:17:52,663 INFO L87 Difference]: Start difference. First operand has 1738 states, 1736 states have (on average 1.5017281105990783) internal successors, (2607), 1737 states have internal predecessors, (2607), 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 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 07:17:52,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 07:17:52,820 INFO L93 Difference]: Finished difference Result 3381 states and 5075 transitions. [2025-01-09 07:17:52,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 07:17:52,822 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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 95 [2025-01-09 07:17:52,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 07:17:52,838 INFO L225 Difference]: With dead ends: 3381 [2025-01-09 07:17:52,838 INFO L226 Difference]: Without dead ends: 1737 [2025-01-09 07:17:52,844 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 [2025-01-09 07:17:52,848 INFO L435 NwaCegarLoop]: 2601 mSDtfsCounter, 0 mSDsluCounter, 5196 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7797 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 07:17:52,849 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7797 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 07:17:52,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1737 states. [2025-01-09 07:17:52,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1737 to 1737. [2025-01-09 07:17:52,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1737 states, 1736 states have (on average 1.5005760368663594) internal successors, (2605), 1736 states have internal predecessors, (2605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 07:17:52,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1737 states to 1737 states and 2605 transitions. [2025-01-09 07:17:52,937 INFO L78 Accepts]: Start accepts. Automaton has 1737 states and 2605 transitions. Word has length 95 [2025-01-09 07:17:52,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 07:17:52,937 INFO L471 AbstractCegarLoop]: Abstraction has 1737 states and 2605 transitions. [2025-01-09 07:17:52,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 07:17:52,937 INFO L276 IsEmpty]: Start isEmpty. Operand 1737 states and 2605 transitions. [2025-01-09 07:17:52,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2025-01-09 07:17:52,941 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 07:17:52,941 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] [2025-01-09 07:17:52,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 07:17:52,942 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 07:17:52,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 07:17:52,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1111792596, now seen corresponding path program 1 times [2025-01-09 07:17:52,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 07:17:52,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761865997] [2025-01-09 07:17:52,944 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 07:17:52,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 07:17:52,984 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-01-09 07:17:53,012 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-01-09 07:17:53,012 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 07:17:53,012 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 07:17:53,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 07:17:53,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 07:17:53,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761865997] [2025-01-09 07:17:53,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761865997] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 07:17:53,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 07:17:53,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 07:17:53,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519710255] [2025-01-09 07:17:53,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 07:17:53,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 07:17:53,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 07:17:53,232 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 07:17:53,233 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 07:17:53,233 INFO L87 Difference]: Start difference. First operand 1737 states and 2605 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 07:17:53,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 07:17:53,293 INFO L93 Difference]: Finished difference Result 3382 states and 5073 transitions. [2025-01-09 07:17:53,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 07:17:53,293 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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 96 [2025-01-09 07:17:53,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 07:17:53,300 INFO L225 Difference]: With dead ends: 3382 [2025-01-09 07:17:53,300 INFO L226 Difference]: Without dead ends: 1739 [2025-01-09 07:17:53,302 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 [2025-01-09 07:17:53,302 INFO L435 NwaCegarLoop]: 2601 mSDtfsCounter, 0 mSDsluCounter, 5192 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7793 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 07:17:53,302 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7793 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 07:17:53,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1739 states. [2025-01-09 07:17:53,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1739 to 1739. [2025-01-09 07:17:53,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1739 states, 1738 states have (on average 1.5) internal successors, (2607), 1738 states have internal predecessors, (2607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 07:17:53,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1739 states to 1739 states and 2607 transitions. [2025-01-09 07:17:53,331 INFO L78 Accepts]: Start accepts. Automaton has 1739 states and 2607 transitions. Word has length 96 [2025-01-09 07:17:53,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 07:17:53,331 INFO L471 AbstractCegarLoop]: Abstraction has 1739 states and 2607 transitions. [2025-01-09 07:17:53,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 07:17:53,332 INFO L276 IsEmpty]: Start isEmpty. Operand 1739 states and 2607 transitions. [2025-01-09 07:17:53,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2025-01-09 07:17:53,337 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 07:17:53,337 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] [2025-01-09 07:17:53,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 07:17:53,338 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 07:17:53,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 07:17:53,338 INFO L85 PathProgramCache]: Analyzing trace with hash -992133249, now seen corresponding path program 1 times [2025-01-09 07:17:53,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 07:17:53,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004103575] [2025-01-09 07:17:53,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 07:17:53,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 07:17:53,378 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 97 statements into 1 equivalence classes. [2025-01-09 07:17:53,401 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 97 of 97 statements. [2025-01-09 07:17:53,402 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 07:17:53,402 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 07:17:53,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 07:17:53,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 07:17:53,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004103575] [2025-01-09 07:17:53,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004103575] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 07:17:53,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 07:17:53,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 07:17:53,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010582850] [2025-01-09 07:17:53,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 07:17:53,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 07:17:53,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 07:17:53,570 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 07:17:53,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 07:17:53,571 INFO L87 Difference]: Start difference. First operand 1739 states and 2607 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 07:17:53,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 07:17:53,629 INFO L93 Difference]: Finished difference Result 3386 states and 5077 transitions. [2025-01-09 07:17:53,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 07:17:53,630 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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 97 [2025-01-09 07:17:53,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 07:17:53,636 INFO L225 Difference]: With dead ends: 3386 [2025-01-09 07:17:53,636 INFO L226 Difference]: Without dead ends: 1741 [2025-01-09 07:17:53,637 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 [2025-01-09 07:17:53,638 INFO L435 NwaCegarLoop]: 2601 mSDtfsCounter, 0 mSDsluCounter, 5186 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7787 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 07:17:53,638 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7787 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 07:17:53,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1741 states. [2025-01-09 07:17:53,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1741 to 1741. [2025-01-09 07:17:53,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1741 states, 1740 states have (on average 1.4994252873563219) internal successors, (2609), 1740 states have internal predecessors, (2609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 07:17:53,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1741 states to 1741 states and 2609 transitions. [2025-01-09 07:17:53,664 INFO L78 Accepts]: Start accepts. Automaton has 1741 states and 2609 transitions. Word has length 97 [2025-01-09 07:17:53,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 07:17:53,665 INFO L471 AbstractCegarLoop]: Abstraction has 1741 states and 2609 transitions. [2025-01-09 07:17:53,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 07:17:53,665 INFO L276 IsEmpty]: Start isEmpty. Operand 1741 states and 2609 transitions. [2025-01-09 07:17:53,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2025-01-09 07:17:53,667 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 07:17:53,667 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] [2025-01-09 07:17:53,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 07:17:53,667 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 07:17:53,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 07:17:53,668 INFO L85 PathProgramCache]: Analyzing trace with hash 217527739, now seen corresponding path program 1 times [2025-01-09 07:17:53,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 07:17:53,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376495511] [2025-01-09 07:17:53,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 07:17:53,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 07:17:53,701 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-01-09 07:17:53,722 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-01-09 07:17:53,722 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 07:17:53,722 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 07:17:53,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 07:17:53,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 07:17:53,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376495511] [2025-01-09 07:17:53,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376495511] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 07:17:53,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 07:17:53,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 07:17:53,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271051026] [2025-01-09 07:17:53,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 07:17:53,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 07:17:53,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 07:17:53,868 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 07:17:53,868 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 07:17:53,868 INFO L87 Difference]: Start difference. First operand 1741 states and 2609 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 07:17:53,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 07:17:53,926 INFO L93 Difference]: Finished difference Result 3396 states and 5089 transitions. [2025-01-09 07:17:53,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 07:17:53,927 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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 98 [2025-01-09 07:17:53,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 07:17:53,931 INFO L225 Difference]: With dead ends: 3396 [2025-01-09 07:17:53,931 INFO L226 Difference]: Without dead ends: 1749 [2025-01-09 07:17:53,933 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 [2025-01-09 07:17:53,933 INFO L435 NwaCegarLoop]: 2601 mSDtfsCounter, 3 mSDsluCounter, 5186 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 7787 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 07:17:53,934 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 7787 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 07:17:53,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1749 states. [2025-01-09 07:17:53,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1749 to 1745. [2025-01-09 07:17:53,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1745 states, 1744 states have (on average 1.499426605504587) internal successors, (2615), 1744 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) [2025-01-09 07:17:53,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1745 states to 1745 states and 2615 transitions. [2025-01-09 07:17:53,961 INFO L78 Accepts]: Start accepts. Automaton has 1745 states and 2615 transitions. Word has length 98 [2025-01-09 07:17:53,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 07:17:53,961 INFO L471 AbstractCegarLoop]: Abstraction has 1745 states and 2615 transitions. [2025-01-09 07:17:53,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 07:17:53,962 INFO L276 IsEmpty]: Start isEmpty. Operand 1745 states and 2615 transitions. [2025-01-09 07:17:53,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2025-01-09 07:17:53,963 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 07:17:53,963 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 07:17:53,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 07:17:53,963 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 07:17:53,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 07:17:53,964 INFO L85 PathProgramCache]: Analyzing trace with hash -732380904, now seen corresponding path program 1 times [2025-01-09 07:17:53,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 07:17:53,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285660730] [2025-01-09 07:17:53,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 07:17:53,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 07:17:53,992 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-01-09 07:17:54,030 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-01-09 07:17:54,030 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 07:17:54,030 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 07:17:54,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 07:17:54,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 07:17:54,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285660730] [2025-01-09 07:17:54,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285660730] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 07:17:54,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 07:17:54,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 07:17:54,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133485506] [2025-01-09 07:17:54,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 07:17:54,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 07:17:54,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 07:17:54,263 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 07:17:54,263 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 07:17:54,263 INFO L87 Difference]: Start difference. First operand 1745 states and 2615 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 07:17:55,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 07:17:55,904 INFO L93 Difference]: Finished difference Result 5031 states and 7541 transitions. [2025-01-09 07:17:55,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 07:17:55,905 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2025-01-09 07:17:55,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 07:17:55,914 INFO L225 Difference]: With dead ends: 5031 [2025-01-09 07:17:55,915 INFO L226 Difference]: Without dead ends: 3380 [2025-01-09 07:17:55,916 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 [2025-01-09 07:17:55,917 INFO L435 NwaCegarLoop]: 1967 mSDtfsCounter, 2499 mSDsluCounter, 5807 mSDsCounter, 0 mSdLazyCounter, 2499 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2499 SdHoareTripleChecker+Valid, 7774 SdHoareTripleChecker+Invalid, 2500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-01-09 07:17:55,918 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2499 Valid, 7774 Invalid, 2500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2499 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-01-09 07:17:55,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3380 states. [2025-01-09 07:17:55,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3380 to 1820. [2025-01-09 07:17:55,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1820 states, 1819 states have (on average 1.4986256184716877) internal successors, (2726), 1819 states have internal predecessors, (2726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 07:17:55,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1820 states to 1820 states and 2726 transitions. [2025-01-09 07:17:55,946 INFO L78 Accepts]: Start accepts. Automaton has 1820 states and 2726 transitions. Word has length 99 [2025-01-09 07:17:55,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 07:17:55,946 INFO L471 AbstractCegarLoop]: Abstraction has 1820 states and 2726 transitions. [2025-01-09 07:17:55,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 07:17:55,946 INFO L276 IsEmpty]: Start isEmpty. Operand 1820 states and 2726 transitions. [2025-01-09 07:17:55,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2025-01-09 07:17:55,947 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 07:17:55,947 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 07:17:55,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 07:17:55,947 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 07:17:55,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 07:17:55,947 INFO L85 PathProgramCache]: Analyzing trace with hash -994986786, now seen corresponding path program 1 times [2025-01-09 07:17:55,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 07:17:55,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14708804] [2025-01-09 07:17:55,948 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 07:17:55,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 07:17:55,968 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-01-09 07:17:55,987 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-01-09 07:17:55,987 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 07:17:55,987 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 07:17:56,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 07:17:56,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 07:17:56,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14708804] [2025-01-09 07:17:56,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14708804] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 07:17:56,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 07:17:56,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 07:17:56,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754749289] [2025-01-09 07:17:56,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 07:17:56,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 07:17:56,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 07:17:56,292 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 07:17:56,292 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-01-09 07:17:56,292 INFO L87 Difference]: Start difference. First operand 1820 states and 2726 transitions. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 07:17:57,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 07:17:57,598 INFO L93 Difference]: Finished difference Result 3486 states and 5222 transitions. [2025-01-09 07:17:57,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 07:17:57,599 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2025-01-09 07:17:57,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 07:17:57,604 INFO L225 Difference]: With dead ends: 3486 [2025-01-09 07:17:57,604 INFO L226 Difference]: Without dead ends: 1835 [2025-01-09 07:17:57,605 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-01-09 07:17:57,606 INFO L435 NwaCegarLoop]: 1951 mSDtfsCounter, 2532 mSDsluCounter, 5839 mSDsCounter, 0 mSdLazyCounter, 2621 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2532 SdHoareTripleChecker+Valid, 7790 SdHoareTripleChecker+Invalid, 2622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-01-09 07:17:57,607 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2532 Valid, 7790 Invalid, 2622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2621 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-01-09 07:17:57,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1835 states. [2025-01-09 07:17:57,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1835 to 1833. [2025-01-09 07:17:57,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1833 states, 1832 states have (on average 1.4961790393013101) internal successors, (2741), 1832 states have internal predecessors, (2741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 07:17:57,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1833 states to 1833 states and 2741 transitions. [2025-01-09 07:17:57,631 INFO L78 Accepts]: Start accepts. Automaton has 1833 states and 2741 transitions. Word has length 100 [2025-01-09 07:17:57,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 07:17:57,631 INFO L471 AbstractCegarLoop]: Abstraction has 1833 states and 2741 transitions. [2025-01-09 07:17:57,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 07:17:57,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1833 states and 2741 transitions. [2025-01-09 07:17:57,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2025-01-09 07:17:57,632 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 07:17:57,632 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 07:17:57,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 07:17:57,632 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 07:17:57,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 07:17:57,632 INFO L85 PathProgramCache]: Analyzing trace with hash -460472423, now seen corresponding path program 1 times [2025-01-09 07:17:57,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 07:17:57,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665663764] [2025-01-09 07:17:57,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 07:17:57,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 07:17:57,654 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-01-09 07:17:57,680 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-01-09 07:17:57,681 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 07:17:57,681 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 07:17:57,681 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 07:17:57,691 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-01-09 07:17:57,716 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-01-09 07:17:57,716 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 07:17:57,716 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 07:17:57,769 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 07:17:57,769 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 07:17:57,770 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 07:17:57,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 07:17:57,773 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2025-01-09 07:17:57,851 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 07:17:57,853 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 07:17:57 BoogieIcfgContainer [2025-01-09 07:17:57,853 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 07:17:57,854 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 07:17:57,854 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 07:17:57,854 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 07:17:57,855 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 07:17:51" (3/4) ... [2025-01-09 07:17:57,856 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-09 07:17:57,857 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 07:17:57,858 INFO L158 Benchmark]: Toolchain (without parser) took 12006.68ms. Allocated memory was 142.6MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 106.1MB in the beginning and 502.0MB in the end (delta: -395.9MB). Peak memory consumption was 687.7MB. Max. memory is 16.1GB. [2025-01-09 07:17:57,858 INFO L158 Benchmark]: CDTParser took 0.87ms. Allocated memory is still 167.8MB. Free memory is still 94.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 07:17:57,858 INFO L158 Benchmark]: CACSL2BoogieTranslator took 598.64ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 43.1MB in the end (delta: 63.0MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2025-01-09 07:17:57,859 INFO L158 Benchmark]: Boogie Procedure Inliner took 467.05ms. Allocated memory was 142.6MB in the beginning and 159.4MB in the end (delta: 16.8MB). Free memory was 43.1MB in the beginning and 45.1MB in the end (delta: -2.0MB). Peak memory consumption was 84.7MB. Max. memory is 16.1GB. [2025-01-09 07:17:57,859 INFO L158 Benchmark]: Boogie Preprocessor took 584.74ms. Allocated memory was 159.4MB in the beginning and 411.0MB in the end (delta: 251.7MB). Free memory was 45.1MB in the beginning and 265.2MB in the end (delta: -220.1MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2025-01-09 07:17:57,859 INFO L158 Benchmark]: RCFGBuilder took 4207.96ms. Allocated memory was 411.0MB in the beginning and 1.2GB in the end (delta: 813.7MB). Free memory was 264.6MB in the beginning and 872.9MB in the end (delta: -608.3MB). Peak memory consumption was 218.3MB. Max. memory is 16.1GB. [2025-01-09 07:17:57,859 INFO L158 Benchmark]: TraceAbstraction took 6139.58ms. Allocated memory is still 1.2GB. Free memory was 872.9MB in the beginning and 502.1MB in the end (delta: 370.7MB). Peak memory consumption was 373.4MB. Max. memory is 16.1GB. [2025-01-09 07:17:57,860 INFO L158 Benchmark]: Witness Printer took 2.94ms. Allocated memory is still 1.2GB. Free memory was 502.1MB in the beginning and 502.0MB in the end (delta: 163.8kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 07:17:57,861 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.87ms. Allocated memory is still 167.8MB. Free memory is still 94.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 598.64ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 43.1MB in the end (delta: 63.0MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 467.05ms. Allocated memory was 142.6MB in the beginning and 159.4MB in the end (delta: 16.8MB). Free memory was 43.1MB in the beginning and 45.1MB in the end (delta: -2.0MB). Peak memory consumption was 84.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 584.74ms. Allocated memory was 159.4MB in the beginning and 411.0MB in the end (delta: 251.7MB). Free memory was 45.1MB in the beginning and 265.2MB in the end (delta: -220.1MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. * RCFGBuilder took 4207.96ms. Allocated memory was 411.0MB in the beginning and 1.2GB in the end (delta: 813.7MB). Free memory was 264.6MB in the beginning and 872.9MB in the end (delta: -608.3MB). Peak memory consumption was 218.3MB. Max. memory is 16.1GB. * TraceAbstraction took 6139.58ms. Allocated memory is still 1.2GB. Free memory was 872.9MB in the beginning and 502.1MB in the end (delta: 370.7MB). Peak memory consumption was 373.4MB. Max. memory is 16.1GB. * Witness Printer took 2.94ms. Allocated memory is still 1.2GB. Free memory was 502.1MB in the beginning and 502.0MB in the end (delta: 163.8kB). 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 223, overapproximation of bitwiseAnd at line 225. 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_16 = 0; [L40] const SORT_4 var_53 = 1; [L41] const SORT_4 var_54 = 0; [L42] const SORT_2 var_66 = 0; [L43] const SORT_2 var_68 = 4; [L44] const SORT_2 var_71 = 3; [L45] const SORT_2 var_74 = 2; [L46] const SORT_2 var_77 = 1; [L47] const SORT_2 var_87 = 255; [L48] const SORT_3 var_91 = 0; [L49] const SORT_4 var_95 = 255; [L51] SORT_1 input_65; [L52] SORT_1 input_67; [L53] SORT_1 input_69; [L54] SORT_1 input_70; [L55] SORT_1 input_72; [L56] SORT_1 input_73; [L57] SORT_1 input_75; [L58] SORT_1 input_76; [L59] SORT_1 input_88; [L60] SORT_1 input_89; [L61] SORT_1 input_90; [L62] SORT_1 input_107; [L63] SORT_1 input_108; [L64] SORT_1 input_123; [L65] SORT_1 input_124; [L66] SORT_1 input_139; [L67] SORT_1 input_140; [L68] SORT_1 input_157; [L69] SORT_1 input_165; [L70] SORT_1 input_173; [L71] SORT_1 input_181; [L72] SORT_1 input_189; [L73] SORT_1 input_197; [L74] SORT_1 input_205; [L75] SORT_1 input_213; [L77] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L77] SORT_2 state_6 = __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_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L78] SORT_2 state_8 = __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_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L79] SORT_2 state_10 = __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_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L80] SORT_2 state_12 = __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_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L81] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L82] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L82] SORT_1 state_17 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L83] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L83] SORT_1 state_19 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L84] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L84] SORT_1 state_21 = __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_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L85] SORT_1 state_23 = __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_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L86] SORT_1 state_25 = __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_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L87] SORT_1 state_27 = __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_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L88] SORT_1 state_29 = __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_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L89] SORT_1 state_31 = __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_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L90] SORT_1 state_33 = __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_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L91] SORT_1 state_35 = __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_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L92] SORT_1 state_37 = __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_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L93] SORT_1 state_39 = __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_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L94] SORT_1 state_41 = __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_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L95] SORT_1 state_43 = __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_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L96] SORT_1 state_45 = __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_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L97] SORT_1 state_47 = __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_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L98] SORT_1 state_49 = __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_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L99] SORT_1 state_51 = __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_1 init_18_arg_1 = var_16; [L112] state_17 = init_18_arg_1 [L113] SORT_1 init_20_arg_1 = var_16; [L114] state_19 = init_20_arg_1 [L115] SORT_1 init_22_arg_1 = var_16; [L116] state_21 = init_22_arg_1 [L117] SORT_1 init_24_arg_1 = var_16; [L118] state_23 = init_24_arg_1 [L119] SORT_1 init_26_arg_1 = var_16; [L120] state_25 = init_26_arg_1 [L121] SORT_1 init_28_arg_1 = var_16; [L122] state_27 = init_28_arg_1 [L123] SORT_1 init_30_arg_1 = var_16; [L124] state_29 = init_30_arg_1 [L125] SORT_1 init_32_arg_1 = var_16; [L126] state_31 = init_32_arg_1 [L127] SORT_1 init_34_arg_1 = var_16; [L128] state_33 = init_34_arg_1 [L129] SORT_1 init_36_arg_1 = var_16; [L130] state_35 = init_36_arg_1 [L131] SORT_1 init_38_arg_1 = var_16; [L132] state_37 = init_38_arg_1 [L133] SORT_1 init_40_arg_1 = var_16; [L134] state_39 = init_40_arg_1 [L135] SORT_1 init_42_arg_1 = var_16; [L136] state_41 = init_42_arg_1 [L137] SORT_1 init_44_arg_1 = var_16; [L138] state_43 = init_44_arg_1 [L139] SORT_1 init_46_arg_1 = var_16; [L140] state_45 = init_46_arg_1 [L141] SORT_1 init_48_arg_1 = var_16; [L142] state_47 = init_48_arg_1 [L143] SORT_1 init_50_arg_1 = var_16; [L144] state_49 = init_50_arg_1 [L145] SORT_1 init_52_arg_1 = var_16; [L146] state_51 = init_52_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_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L149] input_65 = __VERIFIER_nondet_uchar() [L150] EXPR input_65 & 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_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L150] input_65 = input_65 & mask_SORT_1 [L151] input_67 = __VERIFIER_nondet_uchar() [L152] EXPR input_67 & mask_SORT_1 VAL [input_65=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L152] input_67 = input_67 & mask_SORT_1 [L153] input_69 = __VERIFIER_nondet_uchar() [L154] EXPR input_69 & mask_SORT_1 VAL [input_65=0, input_67=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L154] input_69 = input_69 & mask_SORT_1 [L155] input_70 = __VERIFIER_nondet_uchar() [L156] EXPR input_70 & mask_SORT_1 VAL [input_65=0, input_67=0, input_69=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L156] input_70 = input_70 & mask_SORT_1 [L157] input_72 = __VERIFIER_nondet_uchar() [L158] EXPR input_72 & mask_SORT_1 VAL [input_65=0, input_67=0, input_69=0, input_70=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L158] input_72 = input_72 & mask_SORT_1 [L159] input_73 = __VERIFIER_nondet_uchar() [L160] EXPR input_73 & mask_SORT_1 VAL [input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L160] input_73 = input_73 & mask_SORT_1 [L161] input_75 = __VERIFIER_nondet_uchar() [L162] EXPR input_75 & mask_SORT_1 VAL [input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, 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_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L162] input_75 = input_75 & mask_SORT_1 [L163] input_76 = __VERIFIER_nondet_uchar() [L164] EXPR input_76 & mask_SORT_1 VAL [input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, 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_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L164] input_76 = input_76 & mask_SORT_1 [L165] input_88 = __VERIFIER_nondet_uchar() [L166] EXPR input_88 & mask_SORT_1 VAL [input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L166] input_88 = input_88 & mask_SORT_1 [L167] input_89 = __VERIFIER_nondet_uchar() [L168] EXPR input_89 & mask_SORT_1 VAL [input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L168] input_89 = input_89 & mask_SORT_1 [L169] input_90 = __VERIFIER_nondet_uchar() [L170] EXPR input_90 & mask_SORT_1 VAL [input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=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_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L170] input_90 = input_90 & mask_SORT_1 [L171] input_107 = __VERIFIER_nondet_uchar() [L172] EXPR input_107 & mask_SORT_1 VAL [input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, input_90=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L172] input_107 = input_107 & mask_SORT_1 [L173] input_108 = __VERIFIER_nondet_uchar() [L174] EXPR input_108 & mask_SORT_1 VAL [input_107=0, input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, input_90=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L174] input_108 = input_108 & mask_SORT_1 [L175] input_123 = __VERIFIER_nondet_uchar() [L176] EXPR input_123 & mask_SORT_1 VAL [input_107=0, input_108=0, input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, input_90=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L176] input_123 = input_123 & mask_SORT_1 [L177] input_124 = __VERIFIER_nondet_uchar() [L178] EXPR input_124 & mask_SORT_1 VAL [input_107=0, input_108=0, input_123=0, input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, input_90=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L178] input_124 = input_124 & mask_SORT_1 [L179] input_139 = __VERIFIER_nondet_uchar() [L180] EXPR input_139 & mask_SORT_1 VAL [input_107=0, input_108=0, input_123=0, input_124=0, input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, input_90=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L180] input_139 = input_139 & mask_SORT_1 [L181] input_140 = __VERIFIER_nondet_uchar() [L182] EXPR input_140 & mask_SORT_1 VAL [input_107=0, input_108=0, input_123=0, input_124=0, input_139=0, input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, input_90=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L182] input_140 = input_140 & mask_SORT_1 [L183] input_157 = __VERIFIER_nondet_uchar() [L184] input_165 = __VERIFIER_nondet_uchar() [L185] input_173 = __VERIFIER_nondet_uchar() [L186] input_181 = __VERIFIER_nondet_uchar() [L187] input_189 = __VERIFIER_nondet_uchar() [L188] input_197 = __VERIFIER_nondet_uchar() [L189] input_205 = __VERIFIER_nondet_uchar() [L190] input_213 = __VERIFIER_nondet_uchar() [L193] SORT_1 var_55_arg_0 = state_25; [L194] SORT_4 var_55_arg_1 = var_53; [L195] SORT_4 var_55_arg_2 = var_54; [L196] SORT_4 var_55 = var_55_arg_0 ? var_55_arg_1 : var_55_arg_2; [L197] SORT_1 var_56_arg_0 = state_33; [L198] SORT_4 var_56_arg_1 = var_53; [L199] SORT_4 var_56_arg_2 = var_54; [L200] SORT_4 var_56 = var_56_arg_0 ? var_56_arg_1 : var_56_arg_2; [L201] SORT_4 var_57_arg_0 = var_55; [L202] SORT_4 var_57_arg_1 = var_56; [L203] SORT_4 var_57 = var_57_arg_0 + var_57_arg_1; [L204] SORT_1 var_58_arg_0 = state_41; [L205] SORT_4 var_58_arg_1 = var_53; [L206] SORT_4 var_58_arg_2 = var_54; [L207] SORT_4 var_58 = var_58_arg_0 ? var_58_arg_1 : var_58_arg_2; [L208] SORT_4 var_59_arg_0 = var_57; [L209] SORT_4 var_59_arg_1 = var_58; [L210] SORT_4 var_59 = var_59_arg_0 + var_59_arg_1; [L211] SORT_1 var_60_arg_0 = state_49; [L212] SORT_4 var_60_arg_1 = var_53; [L213] SORT_4 var_60_arg_2 = var_54; [L214] SORT_4 var_60 = var_60_arg_0 ? var_60_arg_1 : var_60_arg_2; [L215] SORT_4 var_61_arg_0 = var_59; [L216] SORT_4 var_61_arg_1 = var_60; [L217] SORT_4 var_61 = var_61_arg_0 + var_61_arg_1; VAL [input_107=0, input_108=0, input_123=0, input_124=0, input_139=0, input_140=0, input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, input_90=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_61=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L218] EXPR var_61 & mask_SORT_4 VAL [input_107=0, input_108=0, input_123=0, input_124=0, input_139=0, input_140=0, input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, input_90=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L218] var_61 = var_61 & mask_SORT_4 [L219] SORT_4 var_62_arg_0 = var_61; [L220] SORT_4 var_62_arg_1 = var_53; [L221] SORT_1 var_62 = var_62_arg_0 <= var_62_arg_1; [L222] SORT_1 var_63_arg_0 = ~state_51; VAL [input_107=0, input_108=0, input_123=0, input_124=0, input_139=0, input_140=0, input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, input_90=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_62=1, var_63_arg_0=-1, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L223] EXPR var_63_arg_0 & mask_SORT_1 VAL [input_107=0, input_108=0, input_123=0, input_124=0, input_139=0, input_140=0, input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, input_90=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_62=1, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L223] var_63_arg_0 = var_63_arg_0 & mask_SORT_1 [L224] SORT_1 var_63_arg_1 = ~var_62; VAL [input_107=0, input_108=0, input_123=0, input_124=0, input_139=0, input_140=0, input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, input_90=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_63_arg_0=1, var_63_arg_1=-2, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L225] EXPR var_63_arg_1 & mask_SORT_1 VAL [input_107=0, input_108=0, input_123=0, input_124=0, input_139=0, input_140=0, input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, input_90=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_63_arg_0=1, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L225] var_63_arg_1 = var_63_arg_1 & mask_SORT_1 [L226] EXPR var_63_arg_0 & var_63_arg_1 VAL [input_107=0, input_108=0, input_123=0, input_124=0, input_139=0, input_140=0, input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, input_90=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L226] SORT_1 var_63 = var_63_arg_0 & var_63_arg_1; [L227] EXPR var_63 & mask_SORT_1 VAL [input_107=0, input_108=0, input_123=0, input_124=0, input_139=0, input_140=0, input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, input_90=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L227] var_63 = var_63 & mask_SORT_1 [L228] SORT_1 bad_64_arg_0 = var_63; [L229] CALL __VERIFIER_assert(!(bad_64_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1738 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.0s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5034 SdHoareTripleChecker+Valid, 2.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5034 mSDsluCounter, 46728 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 32406 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5188 IncrementalHoareTripleChecker+Invalid, 5190 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 14322 mSDtfsCounter, 5188 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1833occurred in iteration=6, 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, 1566 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 686 NumberOfCodeBlocks, 686 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 579 ConstructedInterpolants, 0 QuantifiedInterpolants, 1657 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 [2025-01-09 07:17:57,889 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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.fischer.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 77ee3c12bce0e0c115e8aa14d1707fe352f16b7764cd43525551553c3df84286 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 07:17:59,944 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 07:18:00,008 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2025-01-09 07:18:00,012 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 07:18:00,012 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 07:18:00,032 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 07:18:00,033 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 07:18:00,035 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 07:18:00,035 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 07:18:00,035 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 07:18:00,035 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 07:18:00,035 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 07:18:00,035 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 07:18:00,035 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 07:18:00,036 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 07:18:00,036 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 07:18:00,036 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 07:18:00,036 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 07:18:00,036 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 07:18:00,036 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 07:18:00,036 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 07:18:00,037 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 07:18:00,037 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-09 07:18:00,037 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-09 07:18:00,037 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 07:18:00,038 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 07:18:00,038 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 07:18:00,038 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 07:18:00,038 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 07:18:00,038 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 07:18:00,038 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 07:18:00,038 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 07:18:00,038 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 07:18:00,038 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 07:18:00,038 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 07:18:00,038 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 07:18:00,038 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 07:18:00,039 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 07:18:00,039 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 07:18:00,039 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 07:18:00,039 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 07:18:00,039 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-09 07:18:00,039 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-09 07:18:00,039 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 07:18:00,039 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 07:18:00,039 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 07:18:00,040 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 07:18:00,040 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 -> 77ee3c12bce0e0c115e8aa14d1707fe352f16b7764cd43525551553c3df84286 [2025-01-09 07:18:00,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 07:18:00,266 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 07:18:00,268 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 07:18:00,268 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 07:18:00,269 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 07:18:00,269 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.2.prop1-func-interl.c [2025-01-09 07:18:01,509 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b52b819d2/d574b1ec4f424445a1eddb03208fa0d2/FLAG332a77c92 [2025-01-09 07:18:01,787 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 07:18:01,788 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.2.prop1-func-interl.c [2025-01-09 07:18:01,803 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b52b819d2/d574b1ec4f424445a1eddb03208fa0d2/FLAG332a77c92 [2025-01-09 07:18:01,815 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b52b819d2/d574b1ec4f424445a1eddb03208fa0d2 [2025-01-09 07:18:01,817 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 07:18:01,818 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 07:18:01,819 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 07:18:01,819 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 07:18:01,822 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 07:18:01,823 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 07:18:01" (1/1) ... [2025-01-09 07:18:01,824 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c00841f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:18:01, skipping insertion in model container [2025-01-09 07:18:01,824 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 07:18:01" (1/1) ... [2025-01-09 07:18:01,863 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 07:18:02,023 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.fischer.2.prop1-func-interl.c[1174,1187] [2025-01-09 07:18:02,242 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 07:18:02,250 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 07:18:02,257 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.fischer.2.prop1-func-interl.c[1174,1187] [2025-01-09 07:18:02,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 07:18:02,346 INFO L204 MainTranslator]: Completed translation [2025-01-09 07:18:02,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:18:02 WrapperNode [2025-01-09 07:18:02,347 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 07:18:02,347 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 07:18:02,348 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 07:18:02,348 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 07:18:02,351 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:18:02" (1/1) ... [2025-01-09 07:18:02,382 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:18:02" (1/1) ... [2025-01-09 07:18:02,452 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1499 [2025-01-09 07:18:02,452 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 07:18:02,453 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 07:18:02,453 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 07:18:02,453 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 07:18:02,460 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:18:02" (1/1) ... [2025-01-09 07:18:02,461 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:18:02" (1/1) ... [2025-01-09 07:18:02,478 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:18:02" (1/1) ... [2025-01-09 07:18:02,535 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-01-09 07:18:02,535 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:18:02" (1/1) ... [2025-01-09 07:18:02,535 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:18:02" (1/1) ... [2025-01-09 07:18:02,556 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:18:02" (1/1) ... [2025-01-09 07:18:02,558 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:18:02" (1/1) ... [2025-01-09 07:18:02,560 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:18:02" (1/1) ... [2025-01-09 07:18:02,563 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:18:02" (1/1) ... [2025-01-09 07:18:02,565 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:18:02" (1/1) ... [2025-01-09 07:18:02,571 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 07:18:02,571 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 07:18:02,571 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 07:18:02,572 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 07:18:02,572 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:18:02" (1/1) ... [2025-01-09 07:18:02,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 07:18:02,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 07:18:02,594 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 07:18:02,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 07:18:02,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 07:18:02,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-09 07:18:02,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 07:18:02,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 07:18:02,887 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 07:18:02,888 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 07:18:03,821 INFO L? ?]: Removed 92 outVars from TransFormulas that were not future-live. [2025-01-09 07:18:03,821 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 07:18:03,828 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 07:18:03,828 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 07:18:03,829 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 07:18:03 BoogieIcfgContainer [2025-01-09 07:18:03,829 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 07:18:03,830 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 07:18:03,831 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 07:18:03,834 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 07:18:03,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 07:18:01" (1/3) ... [2025-01-09 07:18:03,835 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@debd5aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 07:18:03, skipping insertion in model container [2025-01-09 07:18:03,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:18:02" (2/3) ... [2025-01-09 07:18:03,836 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@debd5aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 07:18:03, skipping insertion in model container [2025-01-09 07:18:03,836 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 07:18:03" (3/3) ... [2025-01-09 07:18:03,837 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.fischer.2.prop1-func-interl.c [2025-01-09 07:18:03,847 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 07:18:03,849 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.fischer.2.prop1-func-interl.c that has 1 procedures, 10 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 07:18:03,883 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 07:18:03,895 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;@13a75534, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 07:18:03,895 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 07:18:03,897 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 07:18:03,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-01-09 07:18:03,901 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 07:18:03,901 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-01-09 07:18:03,902 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 07:18:03,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 07:18:03,907 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2025-01-09 07:18:03,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 07:18:03,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [660237512] [2025-01-09 07:18:03,916 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 07:18:03,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 07:18:03,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 07:18:03,920 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 07:18:03,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-09 07:18:04,198 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-01-09 07:18:04,224 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-01-09 07:18:04,225 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 07:18:04,225 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 07:18:04,232 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 42 conjuncts are in the unsatisfiable core [2025-01-09 07:18:04,243 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 07:18:04,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 07:18:04,555 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 07:18:04,556 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 07:18:04,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660237512] [2025-01-09 07:18:04,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660237512] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 07:18:04,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 07:18:04,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 07:18:04,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968223069] [2025-01-09 07:18:04,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 07:18:04,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 07:18:04,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 07:18:04,572 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 07:18:04,572 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 07:18:04,573 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 07:18:04,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 07:18:04,662 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2025-01-09 07:18:04,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 07:18:04,664 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2025-01-09 07:18:04,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 07:18:04,668 INFO L225 Difference]: With dead ends: 18 [2025-01-09 07:18:04,668 INFO L226 Difference]: Without dead ends: 10 [2025-01-09 07:18:04,669 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 07:18:04,671 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 07:18:04,671 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 07:18:04,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2025-01-09 07:18:04,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2025-01-09 07:18:04,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 07:18:04,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2025-01-09 07:18:04,688 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2025-01-09 07:18:04,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 07:18:04,688 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2025-01-09 07:18:04,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 07:18:04,688 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2025-01-09 07:18:04,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-01-09 07:18:04,688 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 07:18:04,688 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2025-01-09 07:18:04,696 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-09 07:18:04,889 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 [2025-01-09 07:18:04,889 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 07:18:04,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 07:18:04,890 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2025-01-09 07:18:04,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 07:18:04,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1495831021] [2025-01-09 07:18:04,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 07:18:04,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 07:18:04,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 07:18:04,893 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 07:18:04,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-09 07:18:05,193 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-09 07:18:05,252 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-09 07:18:05,252 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 07:18:05,252 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 07:18:05,260 INFO L256 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 59 conjuncts are in the unsatisfiable core [2025-01-09 07:18:05,272 INFO L279 TraceCheckSpWp]: Computing forward predicates...