./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-28.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-28.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5332b36603751102648bffc8ac39fdf2a7d71975d025b0c681cc0cf5f9c23fe9 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 14:31:57,297 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 14:31:57,378 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 14:31:57,383 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 14:31:57,385 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 14:31:57,418 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 14:31:57,418 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 14:31:57,418 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 14:31:57,421 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 14:31:57,421 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 14:31:57,421 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 14:31:57,422 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 14:31:57,422 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 14:31:57,423 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 14:31:57,423 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 14:31:57,423 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 14:31:57,424 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 14:31:57,424 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 14:31:57,427 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 14:31:57,427 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 14:31:57,427 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 14:31:57,431 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 14:31:57,431 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 14:31:57,432 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 14:31:57,432 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 14:31:57,432 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 14:31:57,432 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 14:31:57,433 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 14:31:57,433 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 14:31:57,433 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 14:31:57,433 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 14:31:57,434 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 14:31:57,434 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 14:31:57,434 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 14:31:57,435 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 14:31:57,435 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 14:31:57,435 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 14:31:57,435 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 14:31:57,435 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 14:31:57,436 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 14:31:57,436 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 14:31:57,438 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 14:31:57,438 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5332b36603751102648bffc8ac39fdf2a7d71975d025b0c681cc0cf5f9c23fe9 [2024-11-16 14:31:57,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 14:31:57,746 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 14:31:57,749 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 14:31:57,750 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 14:31:57,751 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 14:31:57,752 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-28.i [2024-11-16 14:31:59,278 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 14:31:59,543 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 14:31:59,544 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-28.i [2024-11-16 14:31:59,558 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5bb47844/9c04db6435e947aa8800a8ff912a79b2/FLAG0e508f57e [2024-11-16 14:31:59,577 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5bb47844/9c04db6435e947aa8800a8ff912a79b2 [2024-11-16 14:31:59,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 14:31:59,582 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 14:31:59,584 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 14:31:59,585 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 14:31:59,590 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 14:31:59,591 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 02:31:59" (1/1) ... [2024-11-16 14:31:59,592 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ddedd75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:31:59, skipping insertion in model container [2024-11-16 14:31:59,592 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 02:31:59" (1/1) ... [2024-11-16 14:31:59,626 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 14:31:59,798 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-28.i[919,932] [2024-11-16 14:31:59,885 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 14:31:59,902 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 14:31:59,914 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-28.i[919,932] [2024-11-16 14:31:59,984 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 14:32:00,005 INFO L204 MainTranslator]: Completed translation [2024-11-16 14:32:00,006 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:32:00 WrapperNode [2024-11-16 14:32:00,006 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 14:32:00,008 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 14:32:00,008 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 14:32:00,008 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 14:32:00,014 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:32:00" (1/1) ... [2024-11-16 14:32:00,026 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:32:00" (1/1) ... [2024-11-16 14:32:00,109 INFO L138 Inliner]: procedures = 26, calls = 48, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 261 [2024-11-16 14:32:00,110 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 14:32:00,111 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 14:32:00,111 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 14:32:00,111 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 14:32:00,132 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:32:00" (1/1) ... [2024-11-16 14:32:00,132 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:32:00" (1/1) ... [2024-11-16 14:32:00,159 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:32:00" (1/1) ... [2024-11-16 14:32:00,200 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]. [2024-11-16 14:32:00,201 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:32:00" (1/1) ... [2024-11-16 14:32:00,201 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:32:00" (1/1) ... [2024-11-16 14:32:00,221 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:32:00" (1/1) ... [2024-11-16 14:32:00,222 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:32:00" (1/1) ... [2024-11-16 14:32:00,224 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:32:00" (1/1) ... [2024-11-16 14:32:00,226 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:32:00" (1/1) ... [2024-11-16 14:32:00,231 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 14:32:00,232 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 14:32:00,232 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 14:32:00,232 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 14:32:00,233 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:32:00" (1/1) ... [2024-11-16 14:32:00,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 14:32:00,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 14:32:00,269 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 14:32:00,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 14:32:00,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 14:32:00,318 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 14:32:00,319 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 14:32:00,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 14:32:00,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 14:32:00,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 14:32:00,425 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 14:32:00,427 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 14:32:00,873 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L216: havoc property_#t~bitwise27#1;havoc property_#t~short28#1; [2024-11-16 14:32:00,928 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-16 14:32:00,928 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 14:32:00,951 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 14:32:00,952 INFO L336 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-16 14:32:00,952 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 02:32:00 BoogieIcfgContainer [2024-11-16 14:32:00,952 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 14:32:00,954 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 14:32:00,954 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 14:32:00,957 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 14:32:00,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 02:31:59" (1/3) ... [2024-11-16 14:32:00,958 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dff2ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 02:32:00, skipping insertion in model container [2024-11-16 14:32:00,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:32:00" (2/3) ... [2024-11-16 14:32:00,959 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dff2ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 02:32:00, skipping insertion in model container [2024-11-16 14:32:00,959 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 02:32:00" (3/3) ... [2024-11-16 14:32:00,960 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-cn_file-28.i [2024-11-16 14:32:00,975 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 14:32:00,976 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 14:32:01,036 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 14:32:01,045 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;@49746948, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 14:32:01,045 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 14:32:01,051 INFO L276 IsEmpty]: Start isEmpty. Operand has 116 states, 78 states have (on average 1.4102564102564104) internal successors, (110), 79 states have internal predecessors, (110), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-16 14:32:01,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-11-16 14:32:01,064 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:32:01,064 INFO L215 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:32:01,065 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:32:01,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:32:01,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1940393347, now seen corresponding path program 1 times [2024-11-16 14:32:01,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:32:01,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087784212] [2024-11-16 14:32:01,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:32:01,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:32:01,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:01,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:32:01,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:01,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:32:01,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:01,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:32:01,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:01,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:32:01,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:01,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:32:01,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:01,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:32:01,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:01,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:32:01,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:01,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:32:01,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:01,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:32:01,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:01,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:32:01,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:01,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 14:32:01,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:01,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:32:01,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:01,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 14:32:01,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:01,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:32:01,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:01,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 14:32:01,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:01,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 14:32:01,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:01,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 14:32:01,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:01,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 14:32:01,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:01,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 14:32:01,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:01,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 14:32:01,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:01,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 14:32:01,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:01,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 14:32:01,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:01,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-16 14:32:01,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:01,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 14:32:01,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:01,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-16 14:32:01,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:01,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 14:32:01,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:01,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-16 14:32:01,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:01,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 14:32:01,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:01,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-16 14:32:01,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:01,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-11-16 14:32:01,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:01,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-16 14:32:01,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:01,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-11-16 14:32:01,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:01,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-11-16 14:32:01,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:01,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-11-16 14:32:01,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:01,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-11-16 14:32:01,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:01,737 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2024-11-16 14:32:01,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:32:01,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087784212] [2024-11-16 14:32:01,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087784212] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:32:01,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:32:01,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 14:32:01,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913019311] [2024-11-16 14:32:01,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:32:01,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 14:32:01,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:32:01,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 14:32:01,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 14:32:01,773 INFO L87 Difference]: Start difference. First operand has 116 states, 78 states have (on average 1.4102564102564104) internal successors, (110), 79 states have internal predecessors, (110), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-16 14:32:01,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:32:01,816 INFO L93 Difference]: Finished difference Result 224 states and 388 transitions. [2024-11-16 14:32:01,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 14:32:01,819 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 2 states have call successors, (35) Word has length 228 [2024-11-16 14:32:01,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:32:01,832 INFO L225 Difference]: With dead ends: 224 [2024-11-16 14:32:01,833 INFO L226 Difference]: Without dead ends: 111 [2024-11-16 14:32:01,836 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 14:32:01,839 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 14:32:01,840 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 168 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 14:32:01,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-16 14:32:01,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2024-11-16 14:32:01,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 74 states have (on average 1.3783783783783783) internal successors, (102), 74 states have internal predecessors, (102), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-16 14:32:01,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 172 transitions. [2024-11-16 14:32:01,891 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 172 transitions. Word has length 228 [2024-11-16 14:32:01,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:32:01,891 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 172 transitions. [2024-11-16 14:32:01,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-16 14:32:01,892 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 172 transitions. [2024-11-16 14:32:01,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-11-16 14:32:01,897 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:32:01,897 INFO L215 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:32:01,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 14:32:01,898 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:32:01,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:32:01,898 INFO L85 PathProgramCache]: Analyzing trace with hash -603132282, now seen corresponding path program 1 times [2024-11-16 14:32:01,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:32:01,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974694626] [2024-11-16 14:32:01,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:32:01,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:32:02,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:02,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:32:02,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:02,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:32:02,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:02,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:32:02,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:02,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:32:02,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:02,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:32:02,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:02,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:32:02,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:02,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:32:02,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:02,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:32:02,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:02,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:32:02,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:02,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:32:02,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:02,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 14:32:02,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:02,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:32:02,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:02,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 14:32:02,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:02,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:32:02,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:02,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 14:32:02,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:02,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 14:32:02,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:02,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 14:32:02,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:02,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 14:32:02,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:02,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 14:32:02,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:02,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 14:32:02,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:02,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 14:32:02,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:02,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 14:32:02,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:02,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-16 14:32:02,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:02,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 14:32:02,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:02,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-16 14:32:02,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:02,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 14:32:02,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:02,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-16 14:32:02,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:02,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 14:32:02,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:02,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-16 14:32:02,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:02,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-11-16 14:32:02,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:02,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-16 14:32:02,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:02,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-11-16 14:32:02,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:02,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-11-16 14:32:02,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:02,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-11-16 14:32:02,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:02,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-11-16 14:32:02,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:32:02,647 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2024-11-16 14:32:02,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:32:02,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974694626] [2024-11-16 14:32:02,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974694626] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:32:02,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:32:02,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 14:32:02,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975217998] [2024-11-16 14:32:02,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:32:02,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 14:32:02,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:32:02,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 14:32:02,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 14:32:02,655 INFO L87 Difference]: Start difference. First operand 111 states and 172 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2024-11-16 14:32:02,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:32:02,954 INFO L93 Difference]: Finished difference Result 303 states and 461 transitions. [2024-11-16 14:32:02,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 14:32:02,956 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 228 [2024-11-16 14:32:02,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:32:02,961 INFO L225 Difference]: With dead ends: 303 [2024-11-16 14:32:02,961 INFO L226 Difference]: Without dead ends: 195 [2024-11-16 14:32:02,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 14:32:02,965 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 230 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 14:32:02,966 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 414 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 14:32:02,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-11-16 14:32:03,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 191. [2024-11-16 14:32:03,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 127 states have (on average 1.3385826771653544) internal successors, (170), 128 states have internal predecessors, (170), 59 states have call successors, (59), 4 states have call predecessors, (59), 4 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-16 14:32:03,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 288 transitions. [2024-11-16 14:32:03,031 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 288 transitions. Word has length 228 [2024-11-16 14:32:03,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:32:03,034 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 288 transitions. [2024-11-16 14:32:03,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2024-11-16 14:32:03,035 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 288 transitions. [2024-11-16 14:32:03,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-11-16 14:32:03,043 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:32:03,044 INFO L215 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:32:03,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 14:32:03,044 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:32:03,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:32:03,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1139678053, now seen corresponding path program 1 times [2024-11-16 14:32:03,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:32:03,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972846232] [2024-11-16 14:32:03,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:32:03,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:32:03,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat