./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-64.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_normal_file-64.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 71592c21a828683409fd35e3c804ae28adae470b26e65a289a52fb5caf24a9a0 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 15:30:18,728 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 15:30:18,785 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 15:30:18,790 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 15:30:18,791 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 15:30:18,814 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 15:30:18,816 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 15:30:18,816 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 15:30:18,817 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 15:30:18,818 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 15:30:18,818 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 15:30:18,819 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 15:30:18,819 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 15:30:18,819 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 15:30:18,821 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 15:30:18,821 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 15:30:18,821 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 15:30:18,821 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 15:30:18,821 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 15:30:18,822 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 15:30:18,822 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 15:30:18,825 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 15:30:18,825 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 15:30:18,825 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 15:30:18,826 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 15:30:18,826 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 15:30:18,826 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 15:30:18,826 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 15:30:18,826 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 15:30:18,827 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 15:30:18,827 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 15:30:18,827 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 15:30:18,827 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 15:30:18,827 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 15:30:18,827 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 15:30:18,828 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 15:30:18,828 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 15:30:18,828 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 15:30:18,828 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 15:30:18,828 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 15:30:18,828 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 15:30:18,830 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 15:30:18,830 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71592c21a828683409fd35e3c804ae28adae470b26e65a289a52fb5caf24a9a0 [2024-11-16 15:30:19,030 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 15:30:19,057 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 15:30:19,062 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 15:30:19,062 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 15:30:19,063 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 15:30:19,064 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-64.i [2024-11-16 15:30:20,363 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 15:30:20,507 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 15:30:20,507 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-64.i [2024-11-16 15:30:20,513 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c32caf16/6ca56e2946ab453cb92e9620be89cb22/FLAG02e81e8d8 [2024-11-16 15:30:20,912 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c32caf16/6ca56e2946ab453cb92e9620be89cb22 [2024-11-16 15:30:20,914 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 15:30:20,915 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 15:30:20,916 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 15:30:20,917 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 15:30:20,920 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 15:30:20,921 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:30:20" (1/1) ... [2024-11-16 15:30:20,921 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7076bec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:30:20, skipping insertion in model container [2024-11-16 15:30:20,922 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:30:20" (1/1) ... [2024-11-16 15:30:20,940 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 15:30:21,108 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_normal_file-64.i[913,926] [2024-11-16 15:30:21,196 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 15:30:21,205 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 15:30:21,218 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_normal_file-64.i[913,926] [2024-11-16 15:30:21,234 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 15:30:21,249 INFO L204 MainTranslator]: Completed translation [2024-11-16 15:30:21,250 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:30:21 WrapperNode [2024-11-16 15:30:21,250 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 15:30:21,251 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 15:30:21,251 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 15:30:21,251 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 15:30:21,256 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:30:21" (1/1) ... [2024-11-16 15:30:21,263 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:30:21" (1/1) ... [2024-11-16 15:30:21,283 INFO L138 Inliner]: procedures = 26, calls = 39, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 173 [2024-11-16 15:30:21,284 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 15:30:21,284 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 15:30:21,285 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 15:30:21,285 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 15:30:21,293 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:30:21" (1/1) ... [2024-11-16 15:30:21,293 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:30:21" (1/1) ... [2024-11-16 15:30:21,296 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:30:21" (1/1) ... [2024-11-16 15:30:21,314 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 15:30:21,315 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:30:21" (1/1) ... [2024-11-16 15:30:21,315 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:30:21" (1/1) ... [2024-11-16 15:30:21,324 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:30:21" (1/1) ... [2024-11-16 15:30:21,325 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:30:21" (1/1) ... [2024-11-16 15:30:21,329 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:30:21" (1/1) ... [2024-11-16 15:30:21,330 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:30:21" (1/1) ... [2024-11-16 15:30:21,333 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 15:30:21,334 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 15:30:21,334 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 15:30:21,334 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 15:30:21,335 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:30:21" (1/1) ... [2024-11-16 15:30:21,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 15:30:21,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 15:30:21,376 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 15:30:21,380 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 15:30:21,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 15:30:21,428 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 15:30:21,429 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 15:30:21,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 15:30:21,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 15:30:21,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 15:30:21,508 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 15:30:21,513 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 15:30:21,767 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L127: havoc property_#t~bitwise18#1;havoc property_#t~short19#1; [2024-11-16 15:30:21,803 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-16 15:30:21,803 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 15:30:21,823 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 15:30:21,824 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 15:30:21,824 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:30:21 BoogieIcfgContainer [2024-11-16 15:30:21,824 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 15:30:21,826 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 15:30:21,826 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 15:30:21,829 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 15:30:21,829 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:30:20" (1/3) ... [2024-11-16 15:30:21,829 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@679007fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:30:21, skipping insertion in model container [2024-11-16 15:30:21,829 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:30:21" (2/3) ... [2024-11-16 15:30:21,830 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@679007fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:30:21, skipping insertion in model container [2024-11-16 15:30:21,830 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:30:21" (3/3) ... [2024-11-16 15:30:21,831 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_normal_file-64.i [2024-11-16 15:30:21,845 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 15:30:21,846 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 15:30:21,889 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 15:30:21,895 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;@1985465f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 15:30:21,895 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 15:30:21,899 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 49 states have (on average 1.346938775510204) internal successors, (66), 50 states have internal predecessors, (66), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-16 15:30:21,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-16 15:30:21,910 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 15:30:21,911 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:30:21,912 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 15:30:21,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 15:30:21,916 INFO L85 PathProgramCache]: Analyzing trace with hash -2126596140, now seen corresponding path program 1 times [2024-11-16 15:30:21,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 15:30:21,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298867861] [2024-11-16 15:30:21,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 15:30:21,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 15:30:22,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:22,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 15:30:22,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:22,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 15:30:22,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:22,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 15:30:22,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:22,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 15:30:22,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:22,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 15:30:22,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:22,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 15:30:22,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:22,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 15:30:22,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:22,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 15:30:22,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:22,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 15:30:22,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:22,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 15:30:22,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:22,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 15:30:22,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:22,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 15:30:22,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:22,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 15:30:22,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:22,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 15:30:22,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:22,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 15:30:22,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:22,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 15:30:22,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:22,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 15:30:22,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:22,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 15:30:22,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:22,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 15:30:22,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:22,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 15:30:22,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:22,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 15:30:22,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:22,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 15:30:22,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:22,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-16 15:30:22,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:22,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 15:30:22,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:22,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-16 15:30:22,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:22,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 15:30:22,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:22,283 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-16 15:30:22,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 15:30:22,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298867861] [2024-11-16 15:30:22,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298867861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 15:30:22,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 15:30:22,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 15:30:22,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738610758] [2024-11-16 15:30:22,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 15:30:22,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 15:30:22,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 15:30:22,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 15:30:22,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 15:30:22,331 INFO L87 Difference]: Start difference. First operand has 78 states, 49 states have (on average 1.346938775510204) internal successors, (66), 50 states have internal predecessors, (66), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-16 15:30:22,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 15:30:22,374 INFO L93 Difference]: Finished difference Result 148 states and 255 transitions. [2024-11-16 15:30:22,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 15:30:22,376 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) Word has length 165 [2024-11-16 15:30:22,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 15:30:22,382 INFO L225 Difference]: With dead ends: 148 [2024-11-16 15:30:22,382 INFO L226 Difference]: Without dead ends: 73 [2024-11-16 15:30:22,388 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 80 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 15:30:22,391 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 15:30:22,391 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 108 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 15:30:22,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-16 15:30:22,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2024-11-16 15:30:22,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 45 states have (on average 1.288888888888889) internal successors, (58), 45 states have internal predecessors, (58), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-16 15:30:22,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 110 transitions. [2024-11-16 15:30:22,507 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 110 transitions. Word has length 165 [2024-11-16 15:30:22,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 15:30:22,508 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 110 transitions. [2024-11-16 15:30:22,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-16 15:30:22,508 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 110 transitions. [2024-11-16 15:30:22,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-16 15:30:22,515 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 15:30:22,515 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:30:22,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 15:30:22,516 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 15:30:22,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 15:30:22,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1436156724, now seen corresponding path program 1 times [2024-11-16 15:30:22,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 15:30:22,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221959125] [2024-11-16 15:30:22,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 15:30:22,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 15:30:22,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:24,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 15:30:24,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:24,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 15:30:24,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:24,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 15:30:24,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:24,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 15:30:24,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:24,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 15:30:24,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:24,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 15:30:24,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:24,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 15:30:24,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:24,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 15:30:24,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:24,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 15:30:24,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:24,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 15:30:24,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:24,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 15:30:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:24,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 15:30:24,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:24,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 15:30:24,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:24,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 15:30:24,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:24,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 15:30:24,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:24,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 15:30:24,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:24,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 15:30:24,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:24,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 15:30:24,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:24,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 15:30:24,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:24,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 15:30:24,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:24,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 15:30:24,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:24,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 15:30:24,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:24,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-16 15:30:24,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:24,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 15:30:24,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:24,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-16 15:30:24,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:24,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 15:30:24,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:24,883 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-16 15:30:24,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 15:30:24,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221959125] [2024-11-16 15:30:24,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221959125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 15:30:24,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 15:30:24,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 15:30:24,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869203607] [2024-11-16 15:30:24,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 15:30:24,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 15:30:24,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 15:30:24,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 15:30:24,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 15:30:24,888 INFO L87 Difference]: Start difference. First operand 73 states and 110 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-16 15:30:25,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 15:30:25,221 INFO L93 Difference]: Finished difference Result 254 states and 385 transitions. [2024-11-16 15:30:25,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 15:30:25,221 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 165 [2024-11-16 15:30:25,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 15:30:25,224 INFO L225 Difference]: With dead ends: 254 [2024-11-16 15:30:25,224 INFO L226 Difference]: Without dead ends: 184 [2024-11-16 15:30:25,224 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 15:30:25,228 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 132 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 15:30:25,228 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 468 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 15:30:25,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-11-16 15:30:25,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 77. [2024-11-16 15:30:25,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 49 states have (on average 1.3061224489795917) internal successors, (64), 49 states have internal predecessors, (64), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-16 15:30:25,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 116 transitions. [2024-11-16 15:30:25,247 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 116 transitions. Word has length 165 [2024-11-16 15:30:25,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 15:30:25,249 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 116 transitions. [2024-11-16 15:30:25,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-16 15:30:25,249 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 116 transitions. [2024-11-16 15:30:25,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-16 15:30:25,252 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 15:30:25,252 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:30:25,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 15:30:25,255 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 15:30:25,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 15:30:25,255 INFO L85 PathProgramCache]: Analyzing trace with hash 952611859, now seen corresponding path program 1 times [2024-11-16 15:30:25,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 15:30:25,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126528393] [2024-11-16 15:30:25,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 15:30:25,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 15:30:25,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 15:30:25,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 15:30:25,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 15:30:25,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 15:30:25,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 15:30:25,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 15:30:25,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 15:30:25,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 15:30:25,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 15:30:25,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 15:30:25,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 15:30:25,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 15:30:25,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 15:30:25,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 15:30:25,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 15:30:25,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 15:30:25,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 15:30:25,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 15:30:25,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 15:30:25,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 15:30:25,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 15:30:25,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 15:30:25,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-16 15:30:25,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 15:30:25,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-16 15:30:25,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 15:30:25,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,488 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-16 15:30:25,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 15:30:25,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126528393] [2024-11-16 15:30:25,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126528393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 15:30:25,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 15:30:25,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 15:30:25,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875451042] [2024-11-16 15:30:25,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 15:30:25,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 15:30:25,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 15:30:25,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 15:30:25,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 15:30:25,494 INFO L87 Difference]: Start difference. First operand 77 states and 116 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-16 15:30:25,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 15:30:25,789 INFO L93 Difference]: Finished difference Result 228 states and 339 transitions. [2024-11-16 15:30:25,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 15:30:25,793 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 165 [2024-11-16 15:30:25,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 15:30:25,795 INFO L225 Difference]: With dead ends: 228 [2024-11-16 15:30:25,795 INFO L226 Difference]: Without dead ends: 154 [2024-11-16 15:30:25,796 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 15:30:25,797 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 113 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 15:30:25,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 573 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 15:30:25,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-11-16 15:30:25,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 77. [2024-11-16 15:30:25,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 49 states have (on average 1.3061224489795917) internal successors, (64), 49 states have internal predecessors, (64), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-16 15:30:25,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 116 transitions. [2024-11-16 15:30:25,816 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 116 transitions. Word has length 165 [2024-11-16 15:30:25,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 15:30:25,817 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 116 transitions. [2024-11-16 15:30:25,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-16 15:30:25,817 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 116 transitions. [2024-11-16 15:30:25,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-16 15:30:25,819 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 15:30:25,819 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:30:25,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 15:30:25,823 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 15:30:25,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 15:30:25,824 INFO L85 PathProgramCache]: Analyzing trace with hash -854842604, now seen corresponding path program 1 times [2024-11-16 15:30:25,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 15:30:25,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503612843] [2024-11-16 15:30:25,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 15:30:25,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 15:30:25,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 15:30:25,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 15:30:25,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 15:30:25,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 15:30:25,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 15:30:25,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 15:30:25,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 15:30:25,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 15:30:25,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 15:30:25,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 15:30:25,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 15:30:25,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 15:30:25,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 15:30:25,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 15:30:25,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 15:30:25,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 15:30:25,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 15:30:25,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 15:30:25,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 15:30:25,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 15:30:25,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 15:30:25,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:25,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 15:30:25,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:26,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-16 15:30:26,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:26,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 15:30:26,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:26,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-16 15:30:26,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:26,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 15:30:26,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:30:26,007 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-16 15:30:26,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 15:30:26,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503612843] [2024-11-16 15:30:26,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503612843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 15:30:26,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 15:30:26,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 15:30:26,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683756934] [2024-11-16 15:30:26,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 15:30:26,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 15:30:26,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 15:30:26,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 15:30:26,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 15:30:26,009 INFO L87 Difference]: Start difference. First operand 77 states and 116 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-16 15:30:26,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 15:30:26,130 INFO L93 Difference]: Finished difference Result 228 states and 338 transitions. [2024-11-16 15:30:26,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 15:30:26,130 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 165 [2024-11-16 15:30:26,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 15:30:26,132 INFO L225 Difference]: With dead ends: 228 [2024-11-16 15:30:26,132 INFO L226 Difference]: Without dead ends: 154 [2024-11-16 15:30:26,132 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 15:30:26,133 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 112 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 15:30:26,133 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 635 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 15:30:26,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-11-16 15:30:26,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 73. [2024-11-16 15:30:26,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 45 states have (on average 1.2666666666666666) internal successors, (57), 45 states have internal predecessors, (57), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-16 15:30:26,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 109 transitions. [2024-11-16 15:30:26,140 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 109 transitions. Word has length 165 [2024-11-16 15:30:26,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 15:30:26,141 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 109 transitions. [2024-11-16 15:30:26,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-16 15:30:26,141 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 109 transitions. [2024-11-16 15:30:26,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-16 15:30:26,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 15:30:26,143 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:30:26,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 15:30:26,143 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 15:30:26,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 15:30:26,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1613532534, now seen corresponding path program 1 times [2024-11-16 15:30:26,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 15:30:26,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517990476] [2024-11-16 15:30:26,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 15:30:26,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 15:30:26,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat