./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-86.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_codestructure_normal_file-86.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 a9741d9253f3a1c34b363b1f78a0a60d9588ccafe85a5c037fb56edb8bf20d1f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 12:21:42,106 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 12:21:42,197 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 12:21:42,205 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 12:21:42,207 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 12:21:42,239 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 12:21:42,240 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 12:21:42,241 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 12:21:42,241 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 12:21:42,246 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 12:21:42,247 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 12:21:42,247 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 12:21:42,248 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 12:21:42,248 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 12:21:42,248 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 12:21:42,248 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 12:21:42,249 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 12:21:42,249 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 12:21:42,249 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 12:21:42,249 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 12:21:42,249 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 12:21:42,252 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 12:21:42,252 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 12:21:42,253 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 12:21:42,253 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 12:21:42,253 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 12:21:42,253 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 12:21:42,254 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 12:21:42,254 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 12:21:42,254 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 12:21:42,254 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 12:21:42,254 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 12:21:42,255 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 12:21:42,255 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 12:21:42,255 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 12:21:42,255 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 12:21:42,255 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 12:21:42,256 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 12:21:42,256 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 12:21:42,257 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 12:21:42,257 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 12:21:42,258 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 12:21:42,258 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9741d9253f3a1c34b363b1f78a0a60d9588ccafe85a5c037fb56edb8bf20d1f [2024-11-16 12:21:42,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 12:21:42,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 12:21:42,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 12:21:42,537 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 12:21:42,538 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 12:21:42,539 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-86.i [2024-11-16 12:21:44,053 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 12:21:44,306 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 12:21:44,306 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-86.i [2024-11-16 12:21:44,314 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/002485e08/f8e780b7aa1241519c62acdb04b1913f/FLAG7ee484159 [2024-11-16 12:21:44,663 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/002485e08/f8e780b7aa1241519c62acdb04b1913f [2024-11-16 12:21:44,665 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 12:21:44,666 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 12:21:44,667 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 12:21:44,667 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 12:21:44,671 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 12:21:44,671 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:21:44" (1/1) ... [2024-11-16 12:21:44,672 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57a05aae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:44, skipping insertion in model container [2024-11-16 12:21:44,673 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:21:44" (1/1) ... [2024-11-16 12:21:44,701 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 12:21:44,874 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_codestructure_normal_file-86.i[913,926] [2024-11-16 12:21:44,926 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 12:21:44,936 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 12:21:44,949 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_codestructure_normal_file-86.i[913,926] [2024-11-16 12:21:44,992 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 12:21:45,012 INFO L204 MainTranslator]: Completed translation [2024-11-16 12:21:45,013 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:45 WrapperNode [2024-11-16 12:21:45,013 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 12:21:45,013 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 12:21:45,014 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 12:21:45,014 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 12:21:45,020 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:45" (1/1) ... [2024-11-16 12:21:45,030 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:45" (1/1) ... [2024-11-16 12:21:45,065 INFO L138 Inliner]: procedures = 26, calls = 44, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 159 [2024-11-16 12:21:45,066 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 12:21:45,067 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 12:21:45,067 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 12:21:45,067 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 12:21:45,078 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:45" (1/1) ... [2024-11-16 12:21:45,079 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:45" (1/1) ... [2024-11-16 12:21:45,082 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:45" (1/1) ... [2024-11-16 12:21:45,099 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 12:21:45,099 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:45" (1/1) ... [2024-11-16 12:21:45,099 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:45" (1/1) ... [2024-11-16 12:21:45,108 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:45" (1/1) ... [2024-11-16 12:21:45,109 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:45" (1/1) ... [2024-11-16 12:21:45,112 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:45" (1/1) ... [2024-11-16 12:21:45,114 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:45" (1/1) ... [2024-11-16 12:21:45,120 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 12:21:45,121 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 12:21:45,121 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 12:21:45,121 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 12:21:45,127 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:45" (1/1) ... [2024-11-16 12:21:45,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 12:21:45,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 12:21:45,160 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 12:21:45,163 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 12:21:45,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 12:21:45,206 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 12:21:45,207 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 12:21:45,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 12:21:45,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 12:21:45,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 12:21:45,273 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 12:21:45,275 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 12:21:45,657 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-16 12:21:45,657 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 12:21:45,674 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 12:21:45,675 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 12:21:45,676 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 12:21:45 BoogieIcfgContainer [2024-11-16 12:21:45,676 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 12:21:45,679 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 12:21:45,680 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 12:21:45,682 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 12:21:45,682 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:21:44" (1/3) ... [2024-11-16 12:21:45,683 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7105cdd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:21:45, skipping insertion in model container [2024-11-16 12:21:45,683 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:45" (2/3) ... [2024-11-16 12:21:45,684 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7105cdd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:21:45, skipping insertion in model container [2024-11-16 12:21:45,684 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 12:21:45" (3/3) ... [2024-11-16 12:21:45,685 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_normal_file-86.i [2024-11-16 12:21:45,698 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 12:21:45,699 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 12:21:45,762 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 12:21:45,769 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;@67a8aa70, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 12:21:45,769 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 12:21:45,773 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 46 states have internal predecessors, (60), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-16 12:21:45,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-16 12:21:45,787 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 12:21:45,788 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:21:45,788 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 12:21:45,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 12:21:45,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1015535901, now seen corresponding path program 1 times [2024-11-16 12:21:45,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 12:21:45,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515576806] [2024-11-16 12:21:45,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 12:21:45,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 12:21:45,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 12:21:46,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 12:21:46,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 12:21:46,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 12:21:46,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 12:21:46,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 12:21:46,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 12:21:46,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 12:21:46,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 12:21:46,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 12:21:46,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 12:21:46,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 12:21:46,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 12:21:46,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 12:21:46,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 12:21:46,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 12:21:46,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 12:21:46,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 12:21:46,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 12:21:46,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 12:21:46,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 12:21:46,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 12:21:46,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-16 12:21:46,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 12:21:46,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-16 12:21:46,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 12:21:46,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-16 12:21:46,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-16 12:21:46,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-16 12:21:46,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-16 12:21:46,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-16 12:21:46,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,370 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-16 12:21:46,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 12:21:46,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515576806] [2024-11-16 12:21:46,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515576806] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 12:21:46,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 12:21:46,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 12:21:46,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992436246] [2024-11-16 12:21:46,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 12:21:46,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 12:21:46,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 12:21:46,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 12:21:46,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 12:21:46,417 INFO L87 Difference]: Start difference. First operand has 79 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 46 states have internal predecessors, (60), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-16 12:21:46,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 12:21:46,450 INFO L93 Difference]: Finished difference Result 150 states and 268 transitions. [2024-11-16 12:21:46,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 12:21:46,453 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) Word has length 188 [2024-11-16 12:21:46,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 12:21:46,460 INFO L225 Difference]: With dead ends: 150 [2024-11-16 12:21:46,460 INFO L226 Difference]: Without dead ends: 74 [2024-11-16 12:21:46,463 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 95 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 12:21:46,466 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 12:21:46,467 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 12:21:46,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-16 12:21:46,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2024-11-16 12:21:46,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 41 states have (on average 1.2682926829268293) internal successors, (52), 41 states have internal predecessors, (52), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-16 12:21:46,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 114 transitions. [2024-11-16 12:21:46,512 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 114 transitions. Word has length 188 [2024-11-16 12:21:46,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 12:21:46,513 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 114 transitions. [2024-11-16 12:21:46,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-16 12:21:46,513 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 114 transitions. [2024-11-16 12:21:46,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-16 12:21:46,518 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 12:21:46,518 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:21:46,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 12:21:46,519 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 12:21:46,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 12:21:46,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1787935038, now seen corresponding path program 1 times [2024-11-16 12:21:46,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 12:21:46,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429256733] [2024-11-16 12:21:46,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 12:21:46,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 12:21:46,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 12:21:46,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 12:21:46,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 12:21:46,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 12:21:46,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 12:21:46,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 12:21:46,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 12:21:46,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 12:21:46,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 12:21:46,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 12:21:46,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 12:21:46,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 12:21:46,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 12:21:46,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 12:21:46,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 12:21:46,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 12:21:46,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 12:21:46,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 12:21:46,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 12:21:46,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 12:21:46,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 12:21:46,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 12:21:46,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-16 12:21:46,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 12:21:46,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-16 12:21:46,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 12:21:46,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-16 12:21:46,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-16 12:21:46,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-16 12:21:46,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-16 12:21:46,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-16 12:21:46,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 12:21:46,916 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-16 12:21:46,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 12:21:46,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429256733] [2024-11-16 12:21:46,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429256733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 12:21:46,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 12:21:46,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 12:21:46,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031359022] [2024-11-16 12:21:46,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 12:21:46,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 12:21:46,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 12:21:46,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 12:21:46,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 12:21:46,924 INFO L87 Difference]: Start difference. First operand 74 states and 114 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-16 12:21:46,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 12:21:46,987 INFO L93 Difference]: Finished difference Result 179 states and 273 transitions. [2024-11-16 12:21:46,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 12:21:46,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 188 [2024-11-16 12:21:46,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 12:21:46,991 INFO L225 Difference]: With dead ends: 179 [2024-11-16 12:21:46,991 INFO L226 Difference]: Without dead ends: 108 [2024-11-16 12:21:46,992 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 12:21:46,995 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 47 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 12:21:46,996 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 258 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 12:21:46,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-16 12:21:47,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 104. [2024-11-16 12:21:47,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 62 states have (on average 1.2903225806451613) internal successors, (80), 63 states have internal predecessors, (80), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-16 12:21:47,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 158 transitions. [2024-11-16 12:21:47,021 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 158 transitions. Word has length 188 [2024-11-16 12:21:47,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 12:21:47,023 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 158 transitions. [2024-11-16 12:21:47,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-16 12:21:47,024 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 158 transitions. [2024-11-16 12:21:47,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-16 12:21:47,026 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 12:21:47,027 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:21:47,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 12:21:47,027 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 12:21:47,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 12:21:47,027 INFO L85 PathProgramCache]: Analyzing trace with hash -710080899, now seen corresponding path program 1 times [2024-11-16 12:21:47,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 12:21:47,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808354390] [2024-11-16 12:21:47,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 12:21:47,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 12:21:47,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat