./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-51.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_loopvsstraightlinecode_100-1loop_file-51.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 ba41fad7f72744fe0e42c26f1418f056b21d09a04b2ad100829310a14fd9d787 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 16:00:51,431 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 16:00:51,513 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 16:00:51,520 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 16:00:51,521 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 16:00:51,552 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 16:00:51,553 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 16:00:51,555 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 16:00:51,556 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 16:00:51,557 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 16:00:51,558 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 16:00:51,558 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 16:00:51,559 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 16:00:51,559 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 16:00:51,561 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 16:00:51,562 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 16:00:51,562 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 16:00:51,563 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 16:00:51,563 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 16:00:51,563 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 16:00:51,563 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 16:00:51,568 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 16:00:51,568 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 16:00:51,568 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 16:00:51,568 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 16:00:51,569 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 16:00:51,569 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 16:00:51,569 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 16:00:51,569 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 16:00:51,570 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 16:00:51,570 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 16:00:51,570 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 16:00:51,570 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 16:00:51,571 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 16:00:51,571 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 16:00:51,573 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 16:00:51,573 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 16:00:51,573 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 16:00:51,574 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 16:00:51,574 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 16:00:51,574 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 16:00:51,575 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 16:00:51,575 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ba41fad7f72744fe0e42c26f1418f056b21d09a04b2ad100829310a14fd9d787 [2024-11-16 16:00:51,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 16:00:51,880 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 16:00:51,882 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 16:00:51,884 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 16:00:51,884 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 16:00:51,885 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-51.i [2024-11-16 16:00:53,356 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 16:00:53,572 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 16:00:53,572 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-51.i [2024-11-16 16:00:53,587 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3c1d8026/f84163a9fb534caeafd5cd142d419320/FLAGfebd2b5f4 [2024-11-16 16:00:53,602 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3c1d8026/f84163a9fb534caeafd5cd142d419320 [2024-11-16 16:00:53,606 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 16:00:53,607 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 16:00:53,608 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 16:00:53,609 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 16:00:53,614 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 16:00:53,615 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:00:53" (1/1) ... [2024-11-16 16:00:53,616 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@778ada66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:53, skipping insertion in model container [2024-11-16 16:00:53,616 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:00:53" (1/1) ... [2024-11-16 16:00:53,660 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 16:00:53,831 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_loopvsstraightlinecode_100-1loop_file-51.i[916,929] [2024-11-16 16:00:54,042 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 16:00:54,062 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 16:00:54,075 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_loopvsstraightlinecode_100-1loop_file-51.i[916,929] [2024-11-16 16:00:54,123 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 16:00:54,146 INFO L204 MainTranslator]: Completed translation [2024-11-16 16:00:54,150 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:54 WrapperNode [2024-11-16 16:00:54,150 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 16:00:54,152 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 16:00:54,152 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 16:00:54,152 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 16:00:54,159 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:54" (1/1) ... [2024-11-16 16:00:54,172 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:54" (1/1) ... [2024-11-16 16:00:54,216 INFO L138 Inliner]: procedures = 26, calls = 45, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 213 [2024-11-16 16:00:54,216 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 16:00:54,217 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 16:00:54,217 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 16:00:54,217 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 16:00:54,231 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:54" (1/1) ... [2024-11-16 16:00:54,232 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:54" (1/1) ... [2024-11-16 16:00:54,242 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:54" (1/1) ... [2024-11-16 16:00:54,272 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 16:00:54,273 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:54" (1/1) ... [2024-11-16 16:00:54,273 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:54" (1/1) ... [2024-11-16 16:00:54,288 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:54" (1/1) ... [2024-11-16 16:00:54,290 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:54" (1/1) ... [2024-11-16 16:00:54,293 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:54" (1/1) ... [2024-11-16 16:00:54,296 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:54" (1/1) ... [2024-11-16 16:00:54,308 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 16:00:54,309 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 16:00:54,309 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 16:00:54,309 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 16:00:54,310 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:54" (1/1) ... [2024-11-16 16:00:54,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 16:00:54,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 16:00:54,347 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 16:00:54,353 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 16:00:54,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 16:00:54,402 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 16:00:54,402 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 16:00:54,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 16:00:54,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 16:00:54,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 16:00:54,520 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 16:00:54,522 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 16:00:55,021 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-16 16:00:55,023 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 16:00:55,042 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 16:00:55,046 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 16:00:55,046 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:00:55 BoogieIcfgContainer [2024-11-16 16:00:55,047 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 16:00:55,049 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 16:00:55,049 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 16:00:55,052 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 16:00:55,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:00:53" (1/3) ... [2024-11-16 16:00:55,053 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cd8d882 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:00:55, skipping insertion in model container [2024-11-16 16:00:55,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:00:54" (2/3) ... [2024-11-16 16:00:55,054 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cd8d882 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:00:55, skipping insertion in model container [2024-11-16 16:00:55,054 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:00:55" (3/3) ... [2024-11-16 16:00:55,055 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-1loop_file-51.i [2024-11-16 16:00:55,070 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 16:00:55,070 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 16:00:55,128 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 16:00:55,135 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;@2ead03c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 16:00:55,135 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 16:00:55,142 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 62 states have (on average 1.403225806451613) internal successors, (87), 63 states have internal predecessors, (87), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-16 16:00:55,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-16 16:00:55,160 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:00:55,161 INFO L215 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:00:55,161 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:00:55,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:00:55,166 INFO L85 PathProgramCache]: Analyzing trace with hash -883496233, now seen corresponding path program 1 times [2024-11-16 16:00:55,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:00:55,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778046722] [2024-11-16 16:00:55,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:00:55,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:00:55,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:55,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:00:55,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:55,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 16:00:55,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:55,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 16:00:55,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:55,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 16:00:55,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:55,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-16 16:00:55,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:55,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-16 16:00:55,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:55,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 16:00:55,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:55,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 16:00:55,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:55,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 16:00:55,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:55,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 16:00:55,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:55,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 16:00:55,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:55,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 16:00:55,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:55,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 16:00:55,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:55,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-16 16:00:55,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:55,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 16:00:55,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:55,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 16:00:55,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:55,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 16:00:55,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:55,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 16:00:55,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:55,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 16:00:55,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:55,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 16:00:55,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:55,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 16:00:55,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:55,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 16:00:55,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:55,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-16 16:00:55,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:55,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 16:00:55,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:55,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-16 16:00:55,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:55,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 16:00:55,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:55,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-16 16:00:55,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:55,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 16:00:55,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:55,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-16 16:00:55,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:55,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-16 16:00:55,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:55,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-16 16:00:55,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:55,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-16 16:00:55,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:55,831 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2024-11-16 16:00:55,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:00:55,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778046722] [2024-11-16 16:00:55,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778046722] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:00:55,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:00:55,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 16:00:55,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736522217] [2024-11-16 16:00:55,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:00:55,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 16:00:55,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:00:55,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 16:00:55,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 16:00:55,863 INFO L87 Difference]: Start difference. First operand has 97 states, 62 states have (on average 1.403225806451613) internal successors, (87), 63 states have internal predecessors, (87), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-16 16:00:55,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:00:55,892 INFO L93 Difference]: Finished difference Result 190 states and 330 transitions. [2024-11-16 16:00:55,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 16:00:55,895 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 2 states have call successors, (32) Word has length 205 [2024-11-16 16:00:55,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:00:55,902 INFO L225 Difference]: With dead ends: 190 [2024-11-16 16:00:55,902 INFO L226 Difference]: Without dead ends: 92 [2024-11-16 16:00:55,906 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 98 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 16:00:55,909 INFO L432 NwaCegarLoop]: 147 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, 147 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 16:00:55,910 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 16:00:55,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-16 16:00:55,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-11-16 16:00:55,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 58 states have (on average 1.3620689655172413) internal successors, (79), 58 states have internal predecessors, (79), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-16 16:00:55,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 143 transitions. [2024-11-16 16:00:55,964 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 143 transitions. Word has length 205 [2024-11-16 16:00:55,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:00:55,965 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 143 transitions. [2024-11-16 16:00:55,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-16 16:00:55,965 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 143 transitions. [2024-11-16 16:00:55,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-16 16:00:55,972 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:00:55,972 INFO L215 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:00:55,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 16:00:55,973 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:00:55,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:00:55,974 INFO L85 PathProgramCache]: Analyzing trace with hash -2076996615, now seen corresponding path program 1 times [2024-11-16 16:00:55,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:00:55,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632723415] [2024-11-16 16:00:55,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:00:55,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:00:56,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:56,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:00:56,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:56,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 16:00:56,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:56,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 16:00:56,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:56,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 16:00:56,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:56,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-16 16:00:56,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:56,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-16 16:00:56,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:56,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 16:00:56,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:56,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 16:00:56,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:56,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 16:00:56,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:56,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 16:00:56,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:56,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 16:00:56,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:56,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 16:00:56,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:56,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 16:00:56,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:56,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-16 16:00:56,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:56,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 16:00:56,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:56,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 16:00:56,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:56,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 16:00:56,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:56,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 16:00:56,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:57,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 16:00:57,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:57,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 16:00:57,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:57,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 16:00:57,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:57,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 16:00:57,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:57,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-16 16:00:57,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:57,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 16:00:57,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:57,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-16 16:00:57,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:57,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 16:00:57,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:57,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-16 16:00:57,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:57,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 16:00:57,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:57,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-16 16:00:57,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:57,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-16 16:00:57,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:57,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-16 16:00:57,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:57,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-16 16:00:57,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:57,121 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 42 proven. 51 refuted. 0 times theorem prover too weak. 1891 trivial. 0 not checked. [2024-11-16 16:00:57,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:00:57,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632723415] [2024-11-16 16:00:57,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632723415] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 16:00:57,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951000474] [2024-11-16 16:00:57,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:00:57,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 16:00:57,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 16:00:57,126 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 16:00:57,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 16:00:57,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:57,325 INFO L255 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-16 16:00:57,341 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 16:00:57,671 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 1011 proven. 51 refuted. 0 times theorem prover too weak. 922 trivial. 0 not checked. [2024-11-16 16:00:57,672 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 16:00:58,008 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 42 proven. 51 refuted. 0 times theorem prover too weak. 1891 trivial. 0 not checked. [2024-11-16 16:00:58,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951000474] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 16:00:58,009 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 16:00:58,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2024-11-16 16:00:58,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730820315] [2024-11-16 16:00:58,011 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 16:00:58,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 16:00:58,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:00:58,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 16:00:58,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 16:00:58,014 INFO L87 Difference]: Start difference. First operand 92 states and 143 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (49), 2 states have call predecessors, (49), 4 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2024-11-16 16:00:58,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:00:58,324 INFO L93 Difference]: Finished difference Result 189 states and 290 transitions. [2024-11-16 16:00:58,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 16:00:58,326 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (49), 2 states have call predecessors, (49), 4 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 205 [2024-11-16 16:00:58,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:00:58,331 INFO L225 Difference]: With dead ends: 189 [2024-11-16 16:00:58,331 INFO L226 Difference]: Without dead ends: 100 [2024-11-16 16:00:58,332 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 470 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-11-16 16:00:58,333 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 132 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 16:00:58,336 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 248 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 16:00:58,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-16 16:00:58,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 96. [2024-11-16 16:00:58,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 61 states have (on average 1.3278688524590163) internal successors, (81), 61 states have internal predecessors, (81), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-16 16:00:58,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 145 transitions. [2024-11-16 16:00:58,367 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 145 transitions. Word has length 205 [2024-11-16 16:00:58,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:00:58,368 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 145 transitions. [2024-11-16 16:00:58,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (49), 2 states have call predecessors, (49), 4 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2024-11-16 16:00:58,368 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 145 transitions. [2024-11-16 16:00:58,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-16 16:00:58,377 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:00:58,377 INFO L215 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:00:58,399 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-16 16:00:58,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 16:00:58,579 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:00:58,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:00:58,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1707436504, now seen corresponding path program 1 times [2024-11-16 16:00:58,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:00:58,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989218768] [2024-11-16 16:00:58,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:00:58,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:00:58,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:59,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:00:59,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:59,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 16:00:59,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:59,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 16:00:59,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:59,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 16:00:59,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:59,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-16 16:00:59,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:59,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-16 16:00:59,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:59,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 16:00:59,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:59,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 16:00:59,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:59,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 16:00:59,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:59,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 16:00:59,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:59,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 16:00:59,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:59,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 16:00:59,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:59,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 16:00:59,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:59,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-16 16:00:59,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:59,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 16:00:59,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:59,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 16:00:59,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:59,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 16:00:59,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:59,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 16:00:59,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:59,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 16:00:59,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:59,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 16:00:59,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:59,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 16:00:59,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:59,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 16:00:59,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:59,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-16 16:00:59,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:59,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 16:00:59,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:59,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-16 16:00:59,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:59,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 16:00:59,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:59,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-16 16:00:59,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:59,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 16:00:59,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:59,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-16 16:00:59,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:59,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-16 16:00:59,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:59,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-16 16:00:59,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:59,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-16 16:00:59,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:00:59,430 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2024-11-16 16:00:59,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:00:59,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989218768] [2024-11-16 16:00:59,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989218768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:00:59,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:00:59,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 16:00:59,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22353369] [2024-11-16 16:00:59,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:00:59,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 16:00:59,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:00:59,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 16:00:59,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-16 16:00:59,439 INFO L87 Difference]: Start difference. First operand 96 states and 145 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2024-11-16 16:00:59,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:00:59,693 INFO L93 Difference]: Finished difference Result 283 states and 430 transitions. [2024-11-16 16:00:59,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 16:00:59,694 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 205 [2024-11-16 16:00:59,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:00:59,697 INFO L225 Difference]: With dead ends: 283 [2024-11-16 16:00:59,697 INFO L226 Difference]: Without dead ends: 190 [2024-11-16 16:00:59,701 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-16 16:00:59,702 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 130 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 16:00:59,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 628 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 16:00:59,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-16 16:00:59,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 186. [2024-11-16 16:00:59,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 117 states have (on average 1.3076923076923077) internal successors, (153), 117 states have internal predecessors, (153), 64 states have call successors, (64), 4 states have call predecessors, (64), 4 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-16 16:00:59,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 281 transitions. [2024-11-16 16:00:59,744 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 281 transitions. Word has length 205 [2024-11-16 16:00:59,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:00:59,745 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 281 transitions. [2024-11-16 16:00:59,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2024-11-16 16:00:59,746 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 281 transitions. [2024-11-16 16:00:59,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-16 16:00:59,750 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:00:59,750 INFO L215 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:00:59,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 16:00:59,751 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:00:59,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:00:59,751 INFO L85 PathProgramCache]: Analyzing trace with hash -490663026, now seen corresponding path program 1 times [2024-11-16 16:00:59,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:00:59,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151221535] [2024-11-16 16:00:59,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:00:59,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:00:59,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:00,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:01:00,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:00,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 16:01:00,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:00,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 16:01:00,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:00,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 16:01:00,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:00,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-16 16:01:00,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:00,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-16 16:01:00,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:00,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 16:01:00,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:00,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 16:01:00,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:00,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 16:01:00,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:00,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 16:01:00,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:00,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 16:01:00,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:00,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 16:01:00,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:00,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 16:01:00,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:00,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-16 16:01:00,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:00,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 16:01:00,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:00,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 16:01:00,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:00,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 16:01:00,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:00,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 16:01:00,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:00,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 16:01:00,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:00,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 16:01:00,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:00,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 16:01:00,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:00,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 16:01:00,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:00,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-16 16:01:00,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:00,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 16:01:00,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:00,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-16 16:01:00,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:00,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 16:01:00,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:00,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-16 16:01:00,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:00,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 16:01:00,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:00,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-16 16:01:00,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:00,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-16 16:01:00,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:00,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-16 16:01:00,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:00,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-16 16:01:00,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:00,529 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2024-11-16 16:01:00,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:01:00,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151221535] [2024-11-16 16:01:00,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151221535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 16:01:00,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 16:01:00,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 16:01:00,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963992781] [2024-11-16 16:01:00,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 16:01:00,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 16:01:00,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:01:00,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 16:01:00,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-16 16:01:00,535 INFO L87 Difference]: Start difference. First operand 186 states and 281 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2024-11-16 16:01:00,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:01:00,956 INFO L93 Difference]: Finished difference Result 361 states and 535 transitions. [2024-11-16 16:01:00,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 16:01:00,957 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 206 [2024-11-16 16:01:00,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:01:00,961 INFO L225 Difference]: With dead ends: 361 [2024-11-16 16:01:00,964 INFO L226 Difference]: Without dead ends: 268 [2024-11-16 16:01:00,965 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-16 16:01:00,966 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 187 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 16:01:00,967 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 322 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 16:01:00,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2024-11-16 16:01:01,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 197. [2024-11-16 16:01:01,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 126 states have (on average 1.2698412698412698) internal successors, (160), 126 states have internal predecessors, (160), 64 states have call successors, (64), 6 states have call predecessors, (64), 6 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-16 16:01:01,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 288 transitions. [2024-11-16 16:01:01,020 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 288 transitions. Word has length 206 [2024-11-16 16:01:01,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:01:01,021 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 288 transitions. [2024-11-16 16:01:01,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2024-11-16 16:01:01,021 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 288 transitions. [2024-11-16 16:01:01,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-16 16:01:01,023 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:01:01,023 INFO L215 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:01:01,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 16:01:01,023 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:01:01,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:01:01,024 INFO L85 PathProgramCache]: Analyzing trace with hash 490775597, now seen corresponding path program 1 times [2024-11-16 16:01:01,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:01:01,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149245393] [2024-11-16 16:01:01,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:01:01,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:01:01,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:01,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 16:01:01,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:01,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 16:01:01,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:01,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 16:01:01,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:01,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 16:01:01,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:01,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-16 16:01:01,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:01,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-16 16:01:01,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:01,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 16:01:01,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:01,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 16:01:01,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:01,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 16:01:01,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:01,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 16:01:01,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:01,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 16:01:01,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:01,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 16:01:01,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:01,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 16:01:01,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:01,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-16 16:01:01,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:01,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 16:01:01,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:01,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 16:01:01,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:01,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 16:01:01,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:01,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 16:01:01,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:01,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 16:01:01,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:01,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 16:01:01,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:01,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 16:01:01,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:01,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 16:01:01,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:01,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-16 16:01:01,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:01,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 16:01:01,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:01,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-16 16:01:01,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:01,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 16:01:02,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:02,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-16 16:01:02,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:02,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 16:01:02,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:02,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-16 16:01:02,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:02,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-16 16:01:02,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:02,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-16 16:01:02,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:02,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-16 16:01:02,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:02,047 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 27 proven. 66 refuted. 0 times theorem prover too weak. 1891 trivial. 0 not checked. [2024-11-16 16:01:02,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 16:01:02,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149245393] [2024-11-16 16:01:02,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149245393] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 16:01:02,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196672264] [2024-11-16 16:01:02,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:01:02,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 16:01:02,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 16:01:02,050 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 16:01:02,052 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 16:01:02,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:02,228 INFO L255 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-16 16:01:02,237 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 16:01:03,720 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 771 proven. 45 refuted. 0 times theorem prover too weak. 1168 trivial. 0 not checked. [2024-11-16 16:01:03,721 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 16:01:42,261 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse6 (mod c_~var_1_30~0 65536)) (.cse5 (mod c_~var_1_29~0 65536)) (.cse4 (* c_~last_1_var_1_33~0 65535))) (and (or (let ((.cse1 (mod (+ c_~var_1_29~0 .cse4) 65536))) (and (forall ((~var_1_6~0 Int)) (let ((.cse0 (* c_~var_1_1~0 ~var_1_6~0))) (or (not (= (mod .cse0 64) 0)) (< 0 (+ .cse1 (div .cse0 64)))))) (forall ((~var_1_6~0 Int)) (let ((.cse2 (* c_~var_1_1~0 ~var_1_6~0))) (or (< 0 (+ .cse1 (div .cse2 64) 1)) (= (mod .cse2 64) 0)))) (forall ((~var_1_6~0 Int)) (let ((.cse3 (* c_~var_1_1~0 ~var_1_6~0))) (or (< 0 (+ .cse1 (div .cse3 64))) (< .cse3 0)))))) (< .cse5 (+ .cse6 1))) (or (< .cse6 .cse5) (let ((.cse7 (mod (+ c_~var_1_30~0 .cse4) 65536))) (and (forall ((~var_1_6~0 Int)) (let ((.cse8 (* c_~var_1_1~0 ~var_1_6~0))) (or (< 0 (+ .cse7 (div .cse8 64))) (< .cse8 0)))) (forall ((~var_1_6~0 Int)) (let ((.cse9 (* c_~var_1_1~0 ~var_1_6~0))) (or (< 0 (+ .cse7 (div .cse9 64) 1)) (= (mod .cse9 64) 0)))) (forall ((~var_1_6~0 Int)) (let ((.cse10 (* c_~var_1_1~0 ~var_1_6~0))) (or (< 0 (+ .cse7 (div .cse10 64))) (not (= (mod .cse10 64) 0)))))))))) is different from false [2024-11-16 16:01:42,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196672264] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 16:01:42,731 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-16 16:01:42,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 14] total 20 [2024-11-16 16:01:42,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019964368] [2024-11-16 16:01:42,732 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-16 16:01:42,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-16 16:01:42,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 16:01:42,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-16 16:01:42,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=382, Unknown=9, NotChecked=40, Total=506 [2024-11-16 16:01:42,736 INFO L87 Difference]: Start difference. First operand 197 states and 288 transitions. Second operand has 20 states, 20 states have (on average 5.3) internal successors, (106), 19 states have internal predecessors, (106), 6 states have call successors, (64), 5 states have call predecessors, (64), 7 states have return successors, (64), 6 states have call predecessors, (64), 6 states have call successors, (64) [2024-11-16 16:01:47,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 16:01:47,161 INFO L93 Difference]: Finished difference Result 805 states and 1141 transitions. [2024-11-16 16:01:47,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-16 16:01:47,163 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.3) internal successors, (106), 19 states have internal predecessors, (106), 6 states have call successors, (64), 5 states have call predecessors, (64), 7 states have return successors, (64), 6 states have call predecessors, (64), 6 states have call successors, (64) Word has length 206 [2024-11-16 16:01:47,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 16:01:47,168 INFO L225 Difference]: With dead ends: 805 [2024-11-16 16:01:47,169 INFO L226 Difference]: Without dead ends: 611 [2024-11-16 16:01:47,171 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 645 ImplicationChecksByTransitivity, 39.6s TimeCoverageRelationStatistics Valid=493, Invalid=1952, Unknown=9, NotChecked=96, Total=2550 [2024-11-16 16:01:47,173 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 583 mSDsluCounter, 1180 mSDsCounter, 0 mSdLazyCounter, 985 mSolverCounterSat, 505 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 1284 SdHoareTripleChecker+Invalid, 1490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 505 IncrementalHoareTripleChecker+Valid, 985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-16 16:01:47,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [583 Valid, 1284 Invalid, 1490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [505 Valid, 985 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-16 16:01:47,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2024-11-16 16:01:47,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 476. [2024-11-16 16:01:47,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 294 states have (on average 1.217687074829932) internal successors, (358), 295 states have internal predecessors, (358), 160 states have call successors, (160), 21 states have call predecessors, (160), 21 states have return successors, (160), 159 states have call predecessors, (160), 160 states have call successors, (160) [2024-11-16 16:01:47,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 678 transitions. [2024-11-16 16:01:47,272 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 678 transitions. Word has length 206 [2024-11-16 16:01:47,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 16:01:47,273 INFO L471 AbstractCegarLoop]: Abstraction has 476 states and 678 transitions. [2024-11-16 16:01:47,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.3) internal successors, (106), 19 states have internal predecessors, (106), 6 states have call successors, (64), 5 states have call predecessors, (64), 7 states have return successors, (64), 6 states have call predecessors, (64), 6 states have call successors, (64) [2024-11-16 16:01:47,273 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 678 transitions. [2024-11-16 16:01:47,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-16 16:01:47,275 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 16:01:47,276 INFO L215 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:01:47,295 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 16:01:47,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 16:01:47,477 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 16:01:47,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 16:01:47,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1981035912, now seen corresponding path program 1 times [2024-11-16 16:01:47,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 16:01:47,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714044941] [2024-11-16 16:01:47,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:01:47,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 16:01:47,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-16 16:01:47,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1221104904] [2024-11-16 16:01:47,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 16:01:47,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 16:01:47,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 16:01:47,682 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 16:01:47,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 16:01:47,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 16:01:47,832 INFO L255 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-16 16:01:47,837 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 16:01:49,508 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 967 proven. 57 refuted. 0 times theorem prover too weak. 960 trivial. 0 not checked. [2024-11-16 16:01:49,508 INFO L311 TraceCheckSpWp]: Computing backward predicates...