./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --witnessprinter.generate.graphml.witnesses false --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version de325976 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --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 50f60fa428d099767eedeaaecff58f84e68d960030ff43c7eae2dbdfbde6f992 --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --witnessprinter.generate.graphml.witnesses false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.referee-eval-de32597-m [2024-09-17 19:20:17,035 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-17 19:20:17,101 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-17 19:20:17,107 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-17 19:20:17,107 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-17 19:20:17,127 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-17 19:20:17,128 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-17 19:20:17,128 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-17 19:20:17,129 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-17 19:20:17,129 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-17 19:20:17,130 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-17 19:20:17,130 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-17 19:20:17,131 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-17 19:20:17,131 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-17 19:20:17,131 INFO L153 SettingsManager]: * Use SBE=true [2024-09-17 19:20:17,132 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-17 19:20:17,132 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-17 19:20:17,133 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-17 19:20:17,133 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-17 19:20:17,133 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-17 19:20:17,134 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-17 19:20:17,134 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-17 19:20:17,134 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-17 19:20:17,135 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-17 19:20:17,135 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-17 19:20:17,135 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-17 19:20:17,135 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-17 19:20:17,136 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-17 19:20:17,136 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-17 19:20:17,137 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-17 19:20:17,137 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-17 19:20:17,137 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-17 19:20:17,138 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-17 19:20:17,138 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-17 19:20:17,138 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-17 19:20:17,139 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-17 19:20:17,139 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-17 19:20:17,139 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-17 19:20:17,139 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-17 19:20:17,140 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-17 19:20:17,140 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-17 19:20:17,141 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-17 19:20:17,141 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/certificate-witnesses-artifact/automizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50f60fa428d099767eedeaaecff58f84e68d960030ff43c7eae2dbdfbde6f992 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Generate GraphML witnesses -> false [2024-09-17 19:20:17,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-17 19:20:17,398 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-17 19:20:17,402 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-17 19:20:17,403 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-17 19:20:17,403 INFO L274 PluginConnector]: CDTParser initialized [2024-09-17 19:20:17,404 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c [2024-09-17 19:20:18,824 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-17 19:20:19,021 INFO L384 CDTParser]: Found 1 translation units. [2024-09-17 19:20:19,022 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c [2024-09-17 19:20:19,028 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/5dd158cfe/1485a0445ffc4db69eeaee4af5fd577e/FLAGfa65c0a1b [2024-09-17 19:20:19,042 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/5dd158cfe/1485a0445ffc4db69eeaee4af5fd577e [2024-09-17 19:20:19,044 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-17 19:20:19,045 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-17 19:20:19,046 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-17 19:20:19,046 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-17 19:20:19,051 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-17 19:20:19,051 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 07:20:19" (1/1) ... [2024-09-17 19:20:19,052 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5567d63b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:20:19, skipping insertion in model container [2024-09-17 19:20:19,052 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 07:20:19" (1/1) ... [2024-09-17 19:20:19,069 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-17 19:20:19,222 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c[947,960] [2024-09-17 19:20:19,226 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-17 19:20:19,242 INFO L200 MainTranslator]: Completed pre-run [2024-09-17 19:20:19,263 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c[947,960] [2024-09-17 19:20:19,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-17 19:20:19,280 INFO L204 MainTranslator]: Completed translation [2024-09-17 19:20:19,281 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:20:19 WrapperNode [2024-09-17 19:20:19,281 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-17 19:20:19,283 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-17 19:20:19,283 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-17 19:20:19,283 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-17 19:20:19,290 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:20:19" (1/1) ... [2024-09-17 19:20:19,297 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:20:19" (1/1) ... [2024-09-17 19:20:19,303 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-17 19:20:19,304 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-17 19:20:19,305 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-17 19:20:19,305 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-17 19:20:19,305 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-17 19:20:19,314 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:20:19" (1/1) ... [2024-09-17 19:20:19,314 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:20:19" (1/1) ... [2024-09-17 19:20:19,315 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:20:19" (1/1) ... [2024-09-17 19:20:19,325 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]. [2024-09-17 19:20:19,326 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:20:19" (1/1) ... [2024-09-17 19:20:19,326 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:20:19" (1/1) ... [2024-09-17 19:20:19,329 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:20:19" (1/1) ... [2024-09-17 19:20:19,330 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:20:19" (1/1) ... [2024-09-17 19:20:19,330 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:20:19" (1/1) ... [2024-09-17 19:20:19,331 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:20:19" (1/1) ... [2024-09-17 19:20:19,332 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-17 19:20:19,333 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-17 19:20:19,333 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-17 19:20:19,333 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-17 19:20:19,334 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:20:19" (1/1) ... [2024-09-17 19:20:19,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-17 19:20:19,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-17 19:20:19,366 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-17 19:20:19,369 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-17 19:20:19,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-17 19:20:19,411 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-17 19:20:19,411 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-17 19:20:19,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-17 19:20:19,411 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2024-09-17 19:20:19,412 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2024-09-17 19:20:19,412 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2024-09-17 19:20:19,413 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2024-09-17 19:20:19,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-17 19:20:19,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-17 19:20:19,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-17 19:20:19,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-17 19:20:19,468 INFO L242 CfgBuilder]: Building ICFG [2024-09-17 19:20:19,469 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-17 19:20:19,624 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-09-17 19:20:19,624 INFO L291 CfgBuilder]: Performing block encoding [2024-09-17 19:20:19,644 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-17 19:20:19,644 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-17 19:20:19,644 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 07:20:19 BoogieIcfgContainer [2024-09-17 19:20:19,644 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-17 19:20:19,646 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-17 19:20:19,647 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-17 19:20:19,650 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-17 19:20:19,650 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.09 07:20:19" (1/3) ... [2024-09-17 19:20:19,650 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ad8f8d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 07:20:19, skipping insertion in model container [2024-09-17 19:20:19,651 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:20:19" (2/3) ... [2024-09-17 19:20:19,651 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ad8f8d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 07:20:19, skipping insertion in model container [2024-09-17 19:20:19,651 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 07:20:19" (3/3) ... [2024-09-17 19:20:19,652 INFO L112 eAbstractionObserver]: Analyzing ICFG fibo_2calls_8-1.c [2024-09-17 19:20:19,672 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-17 19:20:19,672 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-09-17 19:20:19,719 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-17 19:20:19,725 INFO L336 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=All, 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;@32a7b608, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-17 19:20:19,725 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-17 19:20:19,729 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 20 states have internal predecessors, (25), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-17 19:20:19,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-09-17 19:20:19,734 INFO L208 NwaCegarLoop]: Found error trace [2024-09-17 19:20:19,735 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-17 19:20:19,735 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-17 19:20:19,740 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-17 19:20:19,740 INFO L85 PathProgramCache]: Analyzing trace with hash -685851838, now seen corresponding path program 1 times [2024-09-17 19:20:19,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-17 19:20:19,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056345253] [2024-09-17 19:20:19,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-17 19:20:19,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-17 19:20:19,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:19,991 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-17 19:20:19,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:20,001 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-17 19:20:20,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:20,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-17 19:20:20,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-17 19:20:20,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056345253] [2024-09-17 19:20:20,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056345253] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-17 19:20:20,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-17 19:20:20,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-17 19:20:20,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306825045] [2024-09-17 19:20:20,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-17 19:20:20,101 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-17 19:20:20,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-17 19:20:20,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-17 19:20:20,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-17 19:20:20,130 INFO L87 Difference]: Start difference. First operand has 32 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 20 states have internal predecessors, (25), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-17 19:20:20,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-17 19:20:20,245 INFO L93 Difference]: Finished difference Result 44 states and 55 transitions. [2024-09-17 19:20:20,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-17 19:20:20,247 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 13 [2024-09-17 19:20:20,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-17 19:20:20,256 INFO L225 Difference]: With dead ends: 44 [2024-09-17 19:20:20,256 INFO L226 Difference]: Without dead ends: 32 [2024-09-17 19:20:20,259 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-17 19:20:20,263 INFO L434 NwaCegarLoop]: 31 mSDtfsCounter, 10 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-17 19:20:20,265 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 103 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-17 19:20:20,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-09-17 19:20:20,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2024-09-17 19:20:20,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 19 states have internal predecessors, (22), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-09-17 19:20:20,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2024-09-17 19:20:20,309 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 13 [2024-09-17 19:20:20,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-17 19:20:20,310 INFO L474 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2024-09-17 19:20:20,311 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-17 19:20:20,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-17 19:20:20,312 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2024-09-17 19:20:20,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-09-17 19:20:20,314 INFO L208 NwaCegarLoop]: Found error trace [2024-09-17 19:20:20,314 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-17 19:20:20,314 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-17 19:20:20,315 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-17 19:20:20,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-17 19:20:20,315 INFO L85 PathProgramCache]: Analyzing trace with hash 924954813, now seen corresponding path program 1 times [2024-09-17 19:20:20,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-17 19:20:20,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990130882] [2024-09-17 19:20:20,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-17 19:20:20,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-17 19:20:20,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:20,382 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-17 19:20:20,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:20,389 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-17 19:20:20,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:20,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-17 19:20:20,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-17 19:20:20,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990130882] [2024-09-17 19:20:20,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990130882] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-17 19:20:20,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-17 19:20:20,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-17 19:20:20,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158442501] [2024-09-17 19:20:20,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-17 19:20:20,431 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-17 19:20:20,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-17 19:20:20,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-17 19:20:20,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-17 19:20:20,433 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-17 19:20:20,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-17 19:20:20,488 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2024-09-17 19:20:20,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-17 19:20:20,489 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2024-09-17 19:20:20,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-17 19:20:20,490 INFO L225 Difference]: With dead ends: 36 [2024-09-17 19:20:20,490 INFO L226 Difference]: Without dead ends: 32 [2024-09-17 19:20:20,491 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-17 19:20:20,492 INFO L434 NwaCegarLoop]: 27 mSDtfsCounter, 7 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-17 19:20:20,492 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 88 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-17 19:20:20,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-09-17 19:20:20,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2024-09-17 19:20:20,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 19 states have internal predecessors, (22), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-09-17 19:20:20,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2024-09-17 19:20:20,501 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 14 [2024-09-17 19:20:20,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-17 19:20:20,501 INFO L474 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2024-09-17 19:20:20,501 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-17 19:20:20,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-17 19:20:20,502 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2024-09-17 19:20:20,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-09-17 19:20:20,503 INFO L208 NwaCegarLoop]: Found error trace [2024-09-17 19:20:20,503 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-17 19:20:20,503 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-17 19:20:20,504 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-17 19:20:20,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-17 19:20:20,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1782416332, now seen corresponding path program 1 times [2024-09-17 19:20:20,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-17 19:20:20,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309809107] [2024-09-17 19:20:20,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-17 19:20:20,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-17 19:20:20,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:20,575 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-17 19:20:20,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:20,580 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-17 19:20:20,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:20,657 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:20,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:20,687 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-09-17 19:20:20,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:20,692 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-17 19:20:20,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-17 19:20:20,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309809107] [2024-09-17 19:20:20,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309809107] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-17 19:20:20,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410655809] [2024-09-17 19:20:20,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-17 19:20:20,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-17 19:20:20,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-17 19:20:20,695 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-17 19:20:20,697 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-17 19:20:20,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:20,751 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-17 19:20:20,756 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-17 19:20:20,868 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-17 19:20:20,872 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-17 19:20:21,120 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-17 19:20:21,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1410655809] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-17 19:20:21,121 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-17 19:20:21,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 13 [2024-09-17 19:20:21,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726134819] [2024-09-17 19:20:21,121 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-17 19:20:21,122 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-17 19:20:21,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-17 19:20:21,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-17 19:20:21,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-09-17 19:20:21,124 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand has 13 states, 10 states have (on average 3.2) internal successors, (32), 13 states have internal predecessors, (32), 8 states have call successors, (10), 1 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 8 states have call successors, (9) [2024-09-17 19:20:21,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-17 19:20:21,288 INFO L93 Difference]: Finished difference Result 58 states and 78 transitions. [2024-09-17 19:20:21,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-17 19:20:21,289 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 3.2) internal successors, (32), 13 states have internal predecessors, (32), 8 states have call successors, (10), 1 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 8 states have call successors, (9) Word has length 26 [2024-09-17 19:20:21,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-17 19:20:21,290 INFO L225 Difference]: With dead ends: 58 [2024-09-17 19:20:21,290 INFO L226 Difference]: Without dead ends: 34 [2024-09-17 19:20:21,291 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 53 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-09-17 19:20:21,292 INFO L434 NwaCegarLoop]: 23 mSDtfsCounter, 25 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-17 19:20:21,292 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 160 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-17 19:20:21,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-09-17 19:20:21,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2024-09-17 19:20:21,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 21 states have internal predecessors, (23), 7 states have call successors, (7), 4 states have call predecessors, (7), 5 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2024-09-17 19:20:21,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2024-09-17 19:20:21,302 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 26 [2024-09-17 19:20:21,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-17 19:20:21,302 INFO L474 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2024-09-17 19:20:21,303 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 3.2) internal successors, (32), 13 states have internal predecessors, (32), 8 states have call successors, (10), 1 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 8 states have call successors, (9) [2024-09-17 19:20:21,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-17 19:20:21,303 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2024-09-17 19:20:21,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-09-17 19:20:21,306 INFO L208 NwaCegarLoop]: Found error trace [2024-09-17 19:20:21,306 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-17 19:20:21,324 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-09-17 19:20:21,510 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-17 19:20:21,511 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-17 19:20:21,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-17 19:20:21,511 INFO L85 PathProgramCache]: Analyzing trace with hash -836643613, now seen corresponding path program 1 times [2024-09-17 19:20:21,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-17 19:20:21,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971156045] [2024-09-17 19:20:21,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-17 19:20:21,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-17 19:20:21,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:21,551 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-17 19:20:21,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:21,554 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-17 19:20:21,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:21,653 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:21,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:21,684 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:21,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:21,689 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-17 19:20:21,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-17 19:20:21,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971156045] [2024-09-17 19:20:21,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971156045] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-17 19:20:21,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638531882] [2024-09-17 19:20:21,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-17 19:20:21,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-17 19:20:21,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-17 19:20:21,697 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-17 19:20:21,700 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-17 19:20:21,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:21,746 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-17 19:20:21,747 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-17 19:20:21,817 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-17 19:20:21,819 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-17 19:20:22,009 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-17 19:20:22,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [638531882] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-17 19:20:22,010 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-17 19:20:22,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 13 [2024-09-17 19:20:22,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049511212] [2024-09-17 19:20:22,010 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-17 19:20:22,011 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-17 19:20:22,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-17 19:20:22,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-17 19:20:22,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-09-17 19:20:22,012 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand has 13 states, 11 states have (on average 2.909090909090909) internal successors, (32), 13 states have internal predecessors, (32), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-17 19:20:22,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-17 19:20:22,204 INFO L93 Difference]: Finished difference Result 56 states and 77 transitions. [2024-09-17 19:20:22,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-17 19:20:22,204 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 2.909090909090909) internal successors, (32), 13 states have internal predecessors, (32), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Word has length 27 [2024-09-17 19:20:22,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-17 19:20:22,208 INFO L225 Difference]: With dead ends: 56 [2024-09-17 19:20:22,210 INFO L226 Difference]: Without dead ends: 52 [2024-09-17 19:20:22,210 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 55 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-09-17 19:20:22,212 INFO L434 NwaCegarLoop]: 24 mSDtfsCounter, 32 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-17 19:20:22,213 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 182 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-17 19:20:22,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-09-17 19:20:22,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2024-09-17 19:20:22,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 33 states have internal predecessors, (39), 11 states have call successors, (11), 6 states have call predecessors, (11), 7 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18) [2024-09-17 19:20:22,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 68 transitions. [2024-09-17 19:20:22,233 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 68 transitions. Word has length 27 [2024-09-17 19:20:22,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-17 19:20:22,234 INFO L474 AbstractCegarLoop]: Abstraction has 50 states and 68 transitions. [2024-09-17 19:20:22,234 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 2.909090909090909) internal successors, (32), 13 states have internal predecessors, (32), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-17 19:20:22,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-17 19:20:22,235 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 68 transitions. [2024-09-17 19:20:22,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-09-17 19:20:22,237 INFO L208 NwaCegarLoop]: Found error trace [2024-09-17 19:20:22,237 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-17 19:20:22,254 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-09-17 19:20:22,438 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-17 19:20:22,438 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-17 19:20:22,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-17 19:20:22,439 INFO L85 PathProgramCache]: Analyzing trace with hash -925704228, now seen corresponding path program 1 times [2024-09-17 19:20:22,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-17 19:20:22,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136225819] [2024-09-17 19:20:22,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-17 19:20:22,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-17 19:20:22,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:22,484 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-17 19:20:22,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:22,487 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-17 19:20:22,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:22,512 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:22,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:22,544 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:22,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:22,561 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-09-17 19:20:22,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:22,564 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-17 19:20:22,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:22,566 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-17 19:20:22,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-17 19:20:22,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136225819] [2024-09-17 19:20:22,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136225819] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-17 19:20:22,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292217804] [2024-09-17 19:20:22,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-17 19:20:22,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-17 19:20:22,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-17 19:20:22,568 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-17 19:20:22,569 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-17 19:20:22,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:22,614 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-17 19:20:22,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-17 19:20:22,686 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-17 19:20:22,686 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-17 19:20:23,027 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-17 19:20:23,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [292217804] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-17 19:20:23,028 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-17 19:20:23,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 9] total 15 [2024-09-17 19:20:23,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667554215] [2024-09-17 19:20:23,028 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-17 19:20:23,029 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-17 19:20:23,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-17 19:20:23,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-17 19:20:23,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-09-17 19:20:23,030 INFO L87 Difference]: Start difference. First operand 50 states and 68 transitions. Second operand has 15 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 15 states have internal predecessors, (47), 11 states have call successors, (15), 1 states have call predecessors, (15), 5 states have return successors, (14), 4 states have call predecessors, (14), 11 states have call successors, (14) [2024-09-17 19:20:23,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-17 19:20:23,283 INFO L93 Difference]: Finished difference Result 112 states and 180 transitions. [2024-09-17 19:20:23,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-17 19:20:23,284 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 15 states have internal predecessors, (47), 11 states have call successors, (15), 1 states have call predecessors, (15), 5 states have return successors, (14), 4 states have call predecessors, (14), 11 states have call successors, (14) Word has length 39 [2024-09-17 19:20:23,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-17 19:20:23,286 INFO L225 Difference]: With dead ends: 112 [2024-09-17 19:20:23,286 INFO L226 Difference]: Without dead ends: 68 [2024-09-17 19:20:23,287 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 84 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2024-09-17 19:20:23,288 INFO L434 NwaCegarLoop]: 23 mSDtfsCounter, 38 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-17 19:20:23,288 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 200 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-17 19:20:23,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-09-17 19:20:23,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2024-09-17 19:20:23,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 41 states have (on average 1.2439024390243902) internal successors, (51), 44 states have internal predecessors, (51), 14 states have call successors, (14), 7 states have call predecessors, (14), 10 states have return successors, (30), 14 states have call predecessors, (30), 13 states have call successors, (30) [2024-09-17 19:20:23,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 95 transitions. [2024-09-17 19:20:23,306 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 95 transitions. Word has length 39 [2024-09-17 19:20:23,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-17 19:20:23,306 INFO L474 AbstractCegarLoop]: Abstraction has 66 states and 95 transitions. [2024-09-17 19:20:23,306 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 15 states have internal predecessors, (47), 11 states have call successors, (15), 1 states have call predecessors, (15), 5 states have return successors, (14), 4 states have call predecessors, (14), 11 states have call successors, (14) [2024-09-17 19:20:23,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-17 19:20:23,307 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 95 transitions. [2024-09-17 19:20:23,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-09-17 19:20:23,311 INFO L208 NwaCegarLoop]: Found error trace [2024-09-17 19:20:23,311 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-17 19:20:23,328 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-17 19:20:23,511 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-17 19:20:23,512 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-17 19:20:23,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-17 19:20:23,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1261961157, now seen corresponding path program 1 times [2024-09-17 19:20:23,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-17 19:20:23,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971746249] [2024-09-17 19:20:23,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-17 19:20:23,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-17 19:20:23,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:23,553 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-17 19:20:23,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:23,556 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-17 19:20:23,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:23,584 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:23,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:23,640 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:23,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:23,646 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:23,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:23,651 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:23,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:23,665 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-09-17 19:20:23,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-17 19:20:23,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971746249] [2024-09-17 19:20:23,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971746249] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-17 19:20:23,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780530337] [2024-09-17 19:20:23,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-17 19:20:23,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-17 19:20:23,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-17 19:20:23,668 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-17 19:20:23,669 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-17 19:20:23,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:23,713 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-17 19:20:23,716 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-17 19:20:23,818 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-17 19:20:23,818 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-17 19:20:24,129 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-17 19:20:24,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [780530337] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-17 19:20:24,130 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-17 19:20:24,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9] total 18 [2024-09-17 19:20:24,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507274091] [2024-09-17 19:20:24,130 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-17 19:20:24,131 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-17 19:20:24,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-17 19:20:24,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-17 19:20:24,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2024-09-17 19:20:24,133 INFO L87 Difference]: Start difference. First operand 66 states and 95 transitions. Second operand has 18 states, 16 states have (on average 3.125) internal successors, (50), 18 states have internal predecessors, (50), 11 states have call successors, (15), 1 states have call predecessors, (15), 7 states have return successors, (14), 7 states have call predecessors, (14), 11 states have call successors, (14) [2024-09-17 19:20:24,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-17 19:20:24,471 INFO L93 Difference]: Finished difference Result 182 states and 328 transitions. [2024-09-17 19:20:24,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-17 19:20:24,472 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 3.125) internal successors, (50), 18 states have internal predecessors, (50), 11 states have call successors, (15), 1 states have call predecessors, (15), 7 states have return successors, (14), 7 states have call predecessors, (14), 11 states have call successors, (14) Word has length 40 [2024-09-17 19:20:24,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-17 19:20:24,475 INFO L225 Difference]: With dead ends: 182 [2024-09-17 19:20:24,475 INFO L226 Difference]: Without dead ends: 122 [2024-09-17 19:20:24,478 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 86 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=447, Unknown=0, NotChecked=0, Total=552 [2024-09-17 19:20:24,479 INFO L434 NwaCegarLoop]: 35 mSDtfsCounter, 32 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-17 19:20:24,479 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 343 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-17 19:20:24,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-09-17 19:20:24,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 103. [2024-09-17 19:20:24,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 64 states have (on average 1.21875) internal successors, (78), 67 states have internal predecessors, (78), 23 states have call successors, (23), 9 states have call predecessors, (23), 15 states have return successors, (64), 26 states have call predecessors, (64), 22 states have call successors, (64) [2024-09-17 19:20:24,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 165 transitions. [2024-09-17 19:20:24,523 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 165 transitions. Word has length 40 [2024-09-17 19:20:24,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-17 19:20:24,523 INFO L474 AbstractCegarLoop]: Abstraction has 103 states and 165 transitions. [2024-09-17 19:20:24,524 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 3.125) internal successors, (50), 18 states have internal predecessors, (50), 11 states have call successors, (15), 1 states have call predecessors, (15), 7 states have return successors, (14), 7 states have call predecessors, (14), 11 states have call successors, (14) [2024-09-17 19:20:24,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-17 19:20:24,524 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 165 transitions. [2024-09-17 19:20:24,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-09-17 19:20:24,526 INFO L208 NwaCegarLoop]: Found error trace [2024-09-17 19:20:24,527 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-17 19:20:24,543 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-09-17 19:20:24,727 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-17 19:20:24,727 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-17 19:20:24,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-17 19:20:24,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1624375296, now seen corresponding path program 1 times [2024-09-17 19:20:24,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-17 19:20:24,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504113954] [2024-09-17 19:20:24,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-17 19:20:24,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-17 19:20:24,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:24,768 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-17 19:20:24,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:24,770 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-17 19:20:24,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:24,794 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:24,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:24,833 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:24,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:24,889 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:24,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:24,894 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:24,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:24,897 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:24,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:24,910 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-17 19:20:24,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:24,913 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-09-17 19:20:24,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-17 19:20:24,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504113954] [2024-09-17 19:20:24,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504113954] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-17 19:20:24,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [186335873] [2024-09-17 19:20:24,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-17 19:20:24,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-17 19:20:24,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-17 19:20:24,915 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-17 19:20:24,916 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-17 19:20:24,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:24,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-17 19:20:24,968 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-17 19:20:25,060 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 23 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-09-17 19:20:25,060 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-17 19:20:25,546 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 28 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-17 19:20:25,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [186335873] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-17 19:20:25,546 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-17 19:20:25,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 11] total 20 [2024-09-17 19:20:25,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444477131] [2024-09-17 19:20:25,547 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-17 19:20:25,547 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-09-17 19:20:25,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-17 19:20:25,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-09-17 19:20:25,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2024-09-17 19:20:25,548 INFO L87 Difference]: Start difference. First operand 103 states and 165 transitions. Second operand has 20 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 20 states have internal predecessors, (60), 14 states have call successors, (18), 1 states have call predecessors, (18), 8 states have return successors, (19), 8 states have call predecessors, (19), 14 states have call successors, (19) [2024-09-17 19:20:25,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-17 19:20:25,895 INFO L93 Difference]: Finished difference Result 252 states and 489 transitions. [2024-09-17 19:20:25,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-17 19:20:25,895 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 20 states have internal predecessors, (60), 14 states have call successors, (18), 1 states have call predecessors, (18), 8 states have return successors, (19), 8 states have call predecessors, (19), 14 states have call successors, (19) Word has length 54 [2024-09-17 19:20:25,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-17 19:20:25,899 INFO L225 Difference]: With dead ends: 252 [2024-09-17 19:20:25,899 INFO L226 Difference]: Without dead ends: 155 [2024-09-17 19:20:25,900 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 118 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=571, Unknown=0, NotChecked=0, Total=702 [2024-09-17 19:20:25,901 INFO L434 NwaCegarLoop]: 34 mSDtfsCounter, 41 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-17 19:20:25,901 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 256 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-17 19:20:25,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-09-17 19:20:25,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 112. [2024-09-17 19:20:25,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 71 states have (on average 1.2253521126760563) internal successors, (87), 72 states have internal predecessors, (87), 26 states have call successors, (26), 11 states have call predecessors, (26), 14 states have return successors, (67), 28 states have call predecessors, (67), 25 states have call successors, (67) [2024-09-17 19:20:25,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 180 transitions. [2024-09-17 19:20:25,934 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 180 transitions. Word has length 54 [2024-09-17 19:20:25,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-17 19:20:25,934 INFO L474 AbstractCegarLoop]: Abstraction has 112 states and 180 transitions. [2024-09-17 19:20:25,934 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 20 states have internal predecessors, (60), 14 states have call successors, (18), 1 states have call predecessors, (18), 8 states have return successors, (19), 8 states have call predecessors, (19), 14 states have call successors, (19) [2024-09-17 19:20:25,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-17 19:20:25,935 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 180 transitions. [2024-09-17 19:20:25,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-09-17 19:20:25,938 INFO L208 NwaCegarLoop]: Found error trace [2024-09-17 19:20:25,939 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-17 19:20:25,954 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-09-17 19:20:26,142 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-09-17 19:20:26,143 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-17 19:20:26,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-17 19:20:26,143 INFO L85 PathProgramCache]: Analyzing trace with hash -805611050, now seen corresponding path program 1 times [2024-09-17 19:20:26,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-17 19:20:26,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126014027] [2024-09-17 19:20:26,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-17 19:20:26,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-17 19:20:26,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:26,224 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-17 19:20:26,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:26,227 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-17 19:20:26,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:26,291 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:26,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:26,325 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:26,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:26,362 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:26,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:26,408 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:26,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:26,412 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:26,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:26,415 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:26,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:26,418 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-17 19:20:26,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:26,432 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-17 19:20:26,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:26,442 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:26,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:26,447 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:26,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:26,450 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:26,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:26,452 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:26,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:26,453 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:26,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:26,455 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-17 19:20:26,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:26,457 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 44 proven. 79 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-09-17 19:20:26,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-17 19:20:26,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126014027] [2024-09-17 19:20:26,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126014027] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-17 19:20:26,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233254301] [2024-09-17 19:20:26,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-17 19:20:26,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-17 19:20:26,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-17 19:20:26,460 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-17 19:20:26,461 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-17 19:20:26,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:26,526 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-17 19:20:26,529 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-17 19:20:26,658 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 17 proven. 119 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-09-17 19:20:26,658 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-17 19:20:27,467 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 17 proven. 129 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-09-17 19:20:27,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [233254301] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-17 19:20:27,467 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-17 19:20:27,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 13] total 24 [2024-09-17 19:20:27,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948864227] [2024-09-17 19:20:27,468 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-17 19:20:27,468 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-17 19:20:27,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-17 19:20:27,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-17 19:20:27,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=464, Unknown=0, NotChecked=0, Total=552 [2024-09-17 19:20:27,470 INFO L87 Difference]: Start difference. First operand 112 states and 180 transitions. Second operand has 24 states, 22 states have (on average 3.4545454545454546) internal successors, (76), 24 states have internal predecessors, (76), 18 states have call successors, (25), 1 states have call predecessors, (25), 9 states have return successors, (28), 11 states have call predecessors, (28), 18 states have call successors, (28) [2024-09-17 19:20:27,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-17 19:20:27,936 INFO L93 Difference]: Finished difference Result 256 states and 494 transitions. [2024-09-17 19:20:27,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-17 19:20:27,937 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 3.4545454545454546) internal successors, (76), 24 states have internal predecessors, (76), 18 states have call successors, (25), 1 states have call predecessors, (25), 9 states have return successors, (28), 11 states have call predecessors, (28), 18 states have call successors, (28) Word has length 110 [2024-09-17 19:20:27,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-17 19:20:27,939 INFO L225 Difference]: With dead ends: 256 [2024-09-17 19:20:27,939 INFO L226 Difference]: Without dead ends: 108 [2024-09-17 19:20:27,941 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 235 SyntacticMatches, 5 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=221, Invalid=1039, Unknown=0, NotChecked=0, Total=1260 [2024-09-17 19:20:27,942 INFO L434 NwaCegarLoop]: 34 mSDtfsCounter, 59 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-17 19:20:27,942 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 365 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-17 19:20:27,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-09-17 19:20:27,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 91. [2024-09-17 19:20:27,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 59 states have (on average 1.1864406779661016) internal successors, (70), 60 states have internal predecessors, (70), 18 states have call successors, (18), 10 states have call predecessors, (18), 13 states have return successors, (39), 20 states have call predecessors, (39), 17 states have call successors, (39) [2024-09-17 19:20:27,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 127 transitions. [2024-09-17 19:20:27,957 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 127 transitions. Word has length 110 [2024-09-17 19:20:27,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-17 19:20:27,957 INFO L474 AbstractCegarLoop]: Abstraction has 91 states and 127 transitions. [2024-09-17 19:20:27,958 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 3.4545454545454546) internal successors, (76), 24 states have internal predecessors, (76), 18 states have call successors, (25), 1 states have call predecessors, (25), 9 states have return successors, (28), 11 states have call predecessors, (28), 18 states have call successors, (28) [2024-09-17 19:20:27,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-17 19:20:27,958 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 127 transitions. [2024-09-17 19:20:27,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-09-17 19:20:27,962 INFO L208 NwaCegarLoop]: Found error trace [2024-09-17 19:20:27,963 INFO L216 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 10, 9, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-17 19:20:27,978 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-17 19:20:28,163 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-17 19:20:28,163 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-17 19:20:28,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-17 19:20:28,164 INFO L85 PathProgramCache]: Analyzing trace with hash 222670340, now seen corresponding path program 1 times [2024-09-17 19:20:28,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-17 19:20:28,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964431959] [2024-09-17 19:20:28,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-17 19:20:28,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-17 19:20:28,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:28,303 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-17 19:20:28,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:28,306 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-17 19:20:28,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:28,418 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:28,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:28,468 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:28,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:28,504 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:28,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:28,539 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:28,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:28,584 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:28,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:28,587 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:28,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:28,591 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:28,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:28,594 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-17 19:20:28,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:28,606 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-17 19:20:28,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:28,612 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:28,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:28,615 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:28,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:28,617 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:28,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:28,618 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:28,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:28,619 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-17 19:20:28,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:28,628 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:28,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:28,634 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:28,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:28,637 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:28,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:28,639 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:28,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:28,640 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:28,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:28,642 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-17 19:20:28,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:28,645 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:28,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:28,646 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:28,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:28,649 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 71 proven. 160 refuted. 0 times theorem prover too weak. 434 trivial. 0 not checked. [2024-09-17 19:20:28,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-17 19:20:28,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964431959] [2024-09-17 19:20:28,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964431959] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-17 19:20:28,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1056983930] [2024-09-17 19:20:28,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-17 19:20:28,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-17 19:20:28,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-17 19:20:28,651 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-17 19:20:28,653 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-17 19:20:28,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:28,742 INFO L262 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-17 19:20:28,746 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-17 19:20:28,882 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 34 proven. 242 refuted. 0 times theorem prover too weak. 389 trivial. 0 not checked. [2024-09-17 19:20:28,882 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-17 19:20:29,983 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 34 proven. 258 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2024-09-17 19:20:29,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1056983930] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-17 19:20:29,984 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-17 19:20:29,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 15] total 26 [2024-09-17 19:20:29,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329478094] [2024-09-17 19:20:29,984 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-17 19:20:29,985 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-09-17 19:20:29,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-17 19:20:29,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-09-17 19:20:29,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=549, Unknown=0, NotChecked=0, Total=650 [2024-09-17 19:20:29,986 INFO L87 Difference]: Start difference. First operand 91 states and 127 transitions. Second operand has 26 states, 24 states have (on average 3.5) internal successors, (84), 26 states have internal predecessors, (84), 20 states have call successors, (28), 1 states have call predecessors, (28), 10 states have return successors, (33), 12 states have call predecessors, (33), 20 states have call successors, (33) [2024-09-17 19:20:30,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-17 19:20:30,453 INFO L93 Difference]: Finished difference Result 229 states and 395 transitions. [2024-09-17 19:20:30,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-09-17 19:20:30,454 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 3.5) internal successors, (84), 26 states have internal predecessors, (84), 20 states have call successors, (28), 1 states have call predecessors, (28), 10 states have return successors, (33), 12 states have call predecessors, (33), 20 states have call successors, (33) Word has length 164 [2024-09-17 19:20:30,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-17 19:20:30,456 INFO L225 Difference]: With dead ends: 229 [2024-09-17 19:20:30,456 INFO L226 Difference]: Without dead ends: 131 [2024-09-17 19:20:30,459 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 357 SyntacticMatches, 6 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=275, Invalid=1285, Unknown=0, NotChecked=0, Total=1560 [2024-09-17 19:20:30,462 INFO L434 NwaCegarLoop]: 36 mSDtfsCounter, 85 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-17 19:20:30,462 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 437 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-17 19:20:30,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-09-17 19:20:30,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 111. [2024-09-17 19:20:30,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 73 states have (on average 1.2191780821917808) internal successors, (89), 74 states have internal predecessors, (89), 22 states have call successors, (22), 13 states have call predecessors, (22), 15 states have return successors, (52), 23 states have call predecessors, (52), 21 states have call successors, (52) [2024-09-17 19:20:30,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 163 transitions. [2024-09-17 19:20:30,508 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 163 transitions. Word has length 164 [2024-09-17 19:20:30,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-17 19:20:30,509 INFO L474 AbstractCegarLoop]: Abstraction has 111 states and 163 transitions. [2024-09-17 19:20:30,509 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 3.5) internal successors, (84), 26 states have internal predecessors, (84), 20 states have call successors, (28), 1 states have call predecessors, (28), 10 states have return successors, (33), 12 states have call predecessors, (33), 20 states have call successors, (33) [2024-09-17 19:20:30,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-17 19:20:30,510 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 163 transitions. [2024-09-17 19:20:30,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2024-09-17 19:20:30,512 INFO L208 NwaCegarLoop]: Found error trace [2024-09-17 19:20:30,513 INFO L216 NwaCegarLoop]: trace histogram [17, 17, 16, 16, 13, 13, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-17 19:20:30,529 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-17 19:20:30,713 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-17 19:20:30,713 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-17 19:20:30,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-17 19:20:30,714 INFO L85 PathProgramCache]: Analyzing trace with hash 501832710, now seen corresponding path program 2 times [2024-09-17 19:20:30,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-17 19:20:30,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932202518] [2024-09-17 19:20:30,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-17 19:20:30,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-17 19:20:30,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:30,871 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-17 19:20:30,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:30,873 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-17 19:20:30,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:30,995 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:31,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:31,122 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:31,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:31,175 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:31,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:31,208 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:31,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:31,215 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:31,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:31,217 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:31,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:31,218 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:31,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:31,220 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:31,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:31,222 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-17 19:20:31,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:31,274 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:31,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:31,277 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:31,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:31,281 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-17 19:20:31,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:31,310 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:31,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:31,325 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:31,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:31,329 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-17 19:20:31,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:31,338 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:31,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:31,342 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:31,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:31,345 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:31,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:31,347 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:31,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:31,348 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:31,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:31,351 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-17 19:20:31,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:31,356 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:31,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:31,357 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:31,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:31,359 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-09-17 19:20:31,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:31,368 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:31,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:31,373 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:31,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:31,376 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:31,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:31,378 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:31,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:31,379 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:31,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:31,380 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-17 19:20:31,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:31,383 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:31,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:31,384 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:31,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:31,389 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 167 proven. 260 refuted. 0 times theorem prover too weak. 977 trivial. 0 not checked. [2024-09-17 19:20:31,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-17 19:20:31,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932202518] [2024-09-17 19:20:31,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932202518] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-17 19:20:31,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442551770] [2024-09-17 19:20:31,390 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-17 19:20:31,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-17 19:20:31,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-17 19:20:31,391 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-17 19:20:31,392 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-17 19:20:31,510 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-17 19:20:31,510 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-17 19:20:31,511 INFO L262 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-17 19:20:31,515 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-17 19:20:31,636 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 77 proven. 418 refuted. 0 times theorem prover too weak. 909 trivial. 0 not checked. [2024-09-17 19:20:31,636 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-17 19:20:33,271 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 77 proven. 442 refuted. 0 times theorem prover too weak. 885 trivial. 0 not checked. [2024-09-17 19:20:33,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442551770] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-17 19:20:33,272 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-17 19:20:33,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 17] total 27 [2024-09-17 19:20:33,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518000039] [2024-09-17 19:20:33,272 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-17 19:20:33,273 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-09-17 19:20:33,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-17 19:20:33,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-09-17 19:20:33,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=586, Unknown=0, NotChecked=0, Total=702 [2024-09-17 19:20:33,274 INFO L87 Difference]: Start difference. First operand 111 states and 163 transitions. Second operand has 27 states, 26 states have (on average 3.4615384615384617) internal successors, (90), 27 states have internal predecessors, (90), 21 states have call successors, (29), 1 states have call predecessors, (29), 11 states have return successors, (37), 14 states have call predecessors, (37), 21 states have call successors, (37) [2024-09-17 19:20:33,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-17 19:20:33,755 INFO L93 Difference]: Finished difference Result 254 states and 432 transitions. [2024-09-17 19:20:33,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-09-17 19:20:33,756 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 3.4615384615384617) internal successors, (90), 27 states have internal predecessors, (90), 21 states have call successors, (29), 1 states have call predecessors, (29), 11 states have return successors, (37), 14 states have call predecessors, (37), 21 states have call successors, (37) Word has length 231 [2024-09-17 19:20:33,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-17 19:20:33,759 INFO L225 Difference]: With dead ends: 254 [2024-09-17 19:20:33,759 INFO L226 Difference]: Without dead ends: 156 [2024-09-17 19:20:33,763 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 560 GetRequests, 510 SyntacticMatches, 8 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=339, Invalid=1553, Unknown=0, NotChecked=0, Total=1892 [2024-09-17 19:20:33,763 INFO L434 NwaCegarLoop]: 32 mSDtfsCounter, 64 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-17 19:20:33,763 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 336 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-17 19:20:33,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-09-17 19:20:33,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 143. [2024-09-17 19:20:33,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 97 states have (on average 1.2474226804123711) internal successors, (121), 96 states have internal predecessors, (121), 28 states have call successors, (28), 19 states have call predecessors, (28), 17 states have return successors, (72), 27 states have call predecessors, (72), 27 states have call successors, (72) [2024-09-17 19:20:33,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 221 transitions. [2024-09-17 19:20:33,792 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 221 transitions. Word has length 231 [2024-09-17 19:20:33,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-17 19:20:33,792 INFO L474 AbstractCegarLoop]: Abstraction has 143 states and 221 transitions. [2024-09-17 19:20:33,793 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 3.4615384615384617) internal successors, (90), 27 states have internal predecessors, (90), 21 states have call successors, (29), 1 states have call predecessors, (29), 11 states have return successors, (37), 14 states have call predecessors, (37), 21 states have call successors, (37) [2024-09-17 19:20:33,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-17 19:20:33,796 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 221 transitions. [2024-09-17 19:20:33,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2024-09-17 19:20:33,805 INFO L208 NwaCegarLoop]: Found error trace [2024-09-17 19:20:33,805 INFO L216 NwaCegarLoop]: trace histogram [40, 40, 37, 37, 31, 30, 20, 20, 20, 20, 20, 20, 20, 18, 18, 18, 18, 18, 18, 18, 12, 11, 10, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-17 19:20:33,822 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-09-17 19:20:34,009 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-17 19:20:34,010 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-17 19:20:34,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-17 19:20:34,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1090979059, now seen corresponding path program 3 times [2024-09-17 19:20:34,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-17 19:20:34,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145309759] [2024-09-17 19:20:34,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-17 19:20:34,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-17 19:20:34,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:34,546 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-17 19:20:34,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:34,548 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-17 19:20:34,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:34,899 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:34,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,093 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:35,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,186 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:35,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,238 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:35,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,270 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,276 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:35,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,278 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:35,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,280 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:35,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,281 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:35,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,283 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-17 19:20:35,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,325 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:35,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,328 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:35,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,333 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-17 19:20:35,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,364 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:35,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,385 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:35,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,392 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-17 19:20:35,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,406 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:35,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,412 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:35,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,415 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:35,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,418 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:35,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,419 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:35,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,421 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:35,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,422 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-17 19:20:35,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,424 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:35,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,425 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:35,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,427 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-17 19:20:35,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,429 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:35,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,430 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:35,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,432 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-09-17 19:20:35,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,444 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:35,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,450 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:35,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,454 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:35,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,456 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:35,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,457 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:35,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,458 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:35,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,481 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-17 19:20:35,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,484 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:35,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,486 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:35,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,488 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-17 19:20:35,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,492 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:35,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,495 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:35,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,497 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:35,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,498 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:35,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,500 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2024-09-17 19:20:35,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,553 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:35,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,579 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:35,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,592 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:35,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,600 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:35,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,605 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:35,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,608 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:35,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,610 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:35,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,611 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:35,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,613 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-17 19:20:35,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,616 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:35,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,618 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:35,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,619 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-17 19:20:35,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,622 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:35,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,624 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:35,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,625 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-17 19:20:35,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,637 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:35,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,646 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:35,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,651 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:35,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,654 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:35,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,656 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:35,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,657 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:35,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,659 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-17 19:20:35,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,662 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:35,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,663 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:35,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,665 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-17 19:20:35,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,668 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:35,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,670 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:35,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,672 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-09-17 19:20:35,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,676 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:35,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,679 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:35,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,680 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:35,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,682 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:35,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:35,686 INFO L134 CoverageAnalysis]: Checked inductivity of 8056 backedges. 302 proven. 934 refuted. 0 times theorem prover too weak. 6820 trivial. 0 not checked. [2024-09-17 19:20:35,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-17 19:20:35,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145309759] [2024-09-17 19:20:35,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145309759] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-17 19:20:35,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304958070] [2024-09-17 19:20:35,686 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-17 19:20:35,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-17 19:20:35,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-17 19:20:35,688 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-17 19:20:35,690 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-17 19:20:35,833 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2024-09-17 19:20:35,833 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-17 19:20:35,834 INFO L262 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-17 19:20:35,841 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-17 19:20:35,952 INFO L134 CoverageAnalysis]: Checked inductivity of 8056 backedges. 2122 proven. 34 refuted. 0 times theorem prover too weak. 5900 trivial. 0 not checked. [2024-09-17 19:20:35,952 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-17 19:20:37,701 INFO L134 CoverageAnalysis]: Checked inductivity of 8056 backedges. 1190 proven. 112 refuted. 0 times theorem prover too weak. 6754 trivial. 0 not checked. [2024-09-17 19:20:37,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [304958070] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-17 19:20:37,702 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-17 19:20:37,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 13] total 23 [2024-09-17 19:20:37,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529442610] [2024-09-17 19:20:37,703 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-17 19:20:37,704 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-09-17 19:20:37,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-17 19:20:37,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-09-17 19:20:37,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2024-09-17 19:20:37,705 INFO L87 Difference]: Start difference. First operand 143 states and 221 transitions. Second operand has 23 states, 22 states have (on average 4.045454545454546) internal successors, (89), 23 states have internal predecessors, (89), 15 states have call successors, (30), 2 states have call predecessors, (30), 7 states have return successors, (34), 11 states have call predecessors, (34), 15 states have call successors, (34) [2024-09-17 19:20:37,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-17 19:20:37,971 INFO L93 Difference]: Finished difference Result 283 states and 456 transitions. [2024-09-17 19:20:37,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-17 19:20:37,971 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 4.045454545454546) internal successors, (89), 23 states have internal predecessors, (89), 15 states have call successors, (30), 2 states have call predecessors, (30), 7 states have return successors, (34), 11 states have call predecessors, (34), 15 states have call successors, (34) Word has length 530 [2024-09-17 19:20:37,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-17 19:20:37,974 INFO L225 Difference]: With dead ends: 283 [2024-09-17 19:20:37,974 INFO L226 Difference]: Without dead ends: 153 [2024-09-17 19:20:37,977 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1237 GetRequests, 1203 SyntacticMatches, 6 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=152, Invalid=718, Unknown=0, NotChecked=0, Total=870 [2024-09-17 19:20:37,977 INFO L434 NwaCegarLoop]: 28 mSDtfsCounter, 40 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-17 19:20:37,978 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 275 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-17 19:20:37,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-09-17 19:20:37,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 147. [2024-09-17 19:20:37,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 101 states have (on average 1.1584158415841583) internal successors, (117), 98 states have internal predecessors, (117), 28 states have call successors, (28), 21 states have call predecessors, (28), 17 states have return successors, (69), 27 states have call predecessors, (69), 27 states have call successors, (69) [2024-09-17 19:20:37,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 214 transitions. [2024-09-17 19:20:37,997 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 214 transitions. Word has length 530 [2024-09-17 19:20:37,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-17 19:20:37,998 INFO L474 AbstractCegarLoop]: Abstraction has 147 states and 214 transitions. [2024-09-17 19:20:37,998 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 4.045454545454546) internal successors, (89), 23 states have internal predecessors, (89), 15 states have call successors, (30), 2 states have call predecessors, (30), 7 states have return successors, (34), 11 states have call predecessors, (34), 15 states have call successors, (34) [2024-09-17 19:20:37,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-17 19:20:37,998 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 214 transitions. [2024-09-17 19:20:38,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2024-09-17 19:20:38,004 INFO L208 NwaCegarLoop]: Found error trace [2024-09-17 19:20:38,005 INFO L216 NwaCegarLoop]: trace histogram [33, 33, 30, 30, 26, 25, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 11, 9, 7, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-17 19:20:38,022 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-09-17 19:20:38,206 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-09-17 19:20:38,206 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-17 19:20:38,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-17 19:20:38,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1226774066, now seen corresponding path program 4 times [2024-09-17 19:20:38,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-17 19:20:38,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529737225] [2024-09-17 19:20:38,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-17 19:20:38,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-17 19:20:38,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:38,566 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-17 19:20:38,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:38,568 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-17 19:20:38,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:38,904 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:38,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,092 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:39,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,225 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:39,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,288 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:39,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,317 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:39,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,323 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:39,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,325 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:39,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,326 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:39,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,327 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:39,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,328 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-17 19:20:39,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,373 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:39,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,376 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:39,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,378 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-17 19:20:39,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,385 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:39,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,387 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:39,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,388 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:39,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,389 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:39,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,390 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-17 19:20:39,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,408 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:39,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,414 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:39,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,418 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:39,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,421 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:39,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,423 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:39,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,424 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:39,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,426 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-17 19:20:39,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,430 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:39,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,432 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:39,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,434 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-17 19:20:39,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,437 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:39,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,440 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:39,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,441 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:39,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,442 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:39,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,444 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-09-17 19:20:39,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,492 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:39,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,534 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:39,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,571 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:39,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,588 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:39,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,592 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:39,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,595 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-17 19:20:39,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,600 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:39,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,601 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:39,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,602 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-17 19:20:39,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,619 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:39,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,630 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:39,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,638 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:39,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,644 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:39,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,649 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:39,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,652 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:39,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,654 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:39,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,658 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-17 19:20:39,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,661 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:39,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,662 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:39,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,663 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-17 19:20:39,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,667 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:39,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,670 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:39,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,671 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:39,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,672 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:39,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,673 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-17 19:20:39,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,678 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:39,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,681 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:39,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,682 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:39,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,683 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:39,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:39,686 INFO L134 CoverageAnalysis]: Checked inductivity of 5377 backedges. 548 proven. 844 refuted. 0 times theorem prover too weak. 3985 trivial. 0 not checked. [2024-09-17 19:20:39,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-17 19:20:39,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529737225] [2024-09-17 19:20:39,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529737225] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-17 19:20:39,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59167241] [2024-09-17 19:20:39,687 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-17 19:20:39,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-17 19:20:39,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-17 19:20:39,689 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-17 19:20:39,691 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-17 19:20:39,878 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-17 19:20:39,878 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-17 19:20:39,881 INFO L262 TraceCheckSpWp]: Trace formula consists of 777 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-17 19:20:39,887 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-17 19:20:40,110 INFO L134 CoverageAnalysis]: Checked inductivity of 5377 backedges. 431 proven. 787 refuted. 0 times theorem prover too weak. 4159 trivial. 0 not checked. [2024-09-17 19:20:40,110 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-17 19:20:43,001 INFO L134 CoverageAnalysis]: Checked inductivity of 5377 backedges. 433 proven. 815 refuted. 0 times theorem prover too weak. 4129 trivial. 0 not checked. [2024-09-17 19:20:43,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [59167241] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-17 19:20:43,001 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-17 19:20:43,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 13, 19] total 38 [2024-09-17 19:20:43,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874853561] [2024-09-17 19:20:43,001 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-17 19:20:43,002 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-09-17 19:20:43,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-17 19:20:43,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-09-17 19:20:43,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=1210, Unknown=0, NotChecked=0, Total=1406 [2024-09-17 19:20:43,004 INFO L87 Difference]: Start difference. First operand 147 states and 214 transitions. Second operand has 38 states, 36 states have (on average 3.0277777777777777) internal successors, (109), 38 states have internal predecessors, (109), 28 states have call successors, (37), 1 states have call predecessors, (37), 16 states have return successors, (47), 24 states have call predecessors, (47), 28 states have call successors, (47) [2024-09-17 19:20:43,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-17 19:20:43,644 INFO L93 Difference]: Finished difference Result 335 states and 607 transitions. [2024-09-17 19:20:43,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-09-17 19:20:43,645 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 36 states have (on average 3.0277777777777777) internal successors, (109), 38 states have internal predecessors, (109), 28 states have call successors, (37), 1 states have call predecessors, (37), 16 states have return successors, (47), 24 states have call predecessors, (47), 28 states have call successors, (47) Word has length 436 [2024-09-17 19:20:43,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-17 19:20:43,648 INFO L225 Difference]: With dead ends: 335 [2024-09-17 19:20:43,648 INFO L226 Difference]: Without dead ends: 173 [2024-09-17 19:20:43,651 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1038 GetRequests, 975 SyntacticMatches, 9 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1083 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=432, Invalid=2648, Unknown=0, NotChecked=0, Total=3080 [2024-09-17 19:20:43,651 INFO L434 NwaCegarLoop]: 45 mSDtfsCounter, 103 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 809 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-17 19:20:43,652 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 631 Invalid, 910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 809 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-17 19:20:43,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-09-17 19:20:43,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 153. [2024-09-17 19:20:43,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 105 states have (on average 1.0761904761904761) internal successors, (113), 102 states have internal predecessors, (113), 30 states have call successors, (30), 23 states have call predecessors, (30), 17 states have return successors, (48), 27 states have call predecessors, (48), 29 states have call successors, (48) [2024-09-17 19:20:43,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 191 transitions. [2024-09-17 19:20:43,671 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 191 transitions. Word has length 436 [2024-09-17 19:20:43,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-17 19:20:43,671 INFO L474 AbstractCegarLoop]: Abstraction has 153 states and 191 transitions. [2024-09-17 19:20:43,672 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 36 states have (on average 3.0277777777777777) internal successors, (109), 38 states have internal predecessors, (109), 28 states have call successors, (37), 1 states have call predecessors, (37), 16 states have return successors, (47), 24 states have call predecessors, (47), 28 states have call successors, (47) [2024-09-17 19:20:43,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-17 19:20:43,672 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 191 transitions. [2024-09-17 19:20:43,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2024-09-17 19:20:43,674 INFO L208 NwaCegarLoop]: Found error trace [2024-09-17 19:20:43,674 INFO L216 NwaCegarLoop]: trace histogram [32, 32, 31, 31, 26, 25, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 11, 9, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-17 19:20:43,690 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-09-17 19:20:43,878 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-09-17 19:20:43,879 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-17 19:20:43,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-17 19:20:43,879 INFO L85 PathProgramCache]: Analyzing trace with hash 143598254, now seen corresponding path program 5 times [2024-09-17 19:20:43,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-17 19:20:43,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530796193] [2024-09-17 19:20:43,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-17 19:20:43,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-17 19:20:43,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:44,142 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-17 19:20:44,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:44,145 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-17 19:20:44,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:44,458 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:44,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:44,627 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:44,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:44,734 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:44,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:44,837 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:44,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:44,880 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:44,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:44,886 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:44,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:44,890 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:44,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:44,891 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:44,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:44,893 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:44,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:44,894 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-17 19:20:44,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:44,964 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:44,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:44,967 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:44,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:44,969 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-17 19:20:44,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:44,977 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:44,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:44,980 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:44,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:44,981 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:44,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:44,982 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:44,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:44,983 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-17 19:20:44,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:44,994 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:44,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:44,998 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:44,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:45,001 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:45,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:45,002 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:45,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:45,003 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:45,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:45,004 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-17 19:20:45,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:45,006 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:45,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:45,007 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:45,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:45,009 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-17 19:20:45,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:45,027 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:45,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:45,033 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:45,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:45,036 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:45,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:45,039 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:45,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:45,040 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:45,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:45,041 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:45,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:45,042 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-17 19:20:45,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:45,044 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:45,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:45,045 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:45,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:45,047 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-17 19:20:45,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:45,050 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:45,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:45,052 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:45,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:45,053 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:45,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:45,054 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:45,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:45,056 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-17 19:20:45,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:45,148 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:45,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:45,226 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:45,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:45,263 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:45,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:45,269 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:45,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:45,271 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:45,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:45,272 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:45,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:45,274 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:45,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:45,275 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-17 19:20:45,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:45,326 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:45,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:45,329 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:45,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:45,332 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-17 19:20:45,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:45,339 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:45,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:45,341 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:45,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:45,343 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:45,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:45,344 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:45,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:45,345 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-17 19:20:45,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:45,381 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:45,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:45,416 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:45,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:45,439 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:45,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:45,442 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:45,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:45,450 INFO L134 CoverageAnalysis]: Checked inductivity of 5369 backedges. 1060 proven. 718 refuted. 0 times theorem prover too weak. 3591 trivial. 0 not checked. [2024-09-17 19:20:45,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-17 19:20:45,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530796193] [2024-09-17 19:20:45,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530796193] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-17 19:20:45,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349616571] [2024-09-17 19:20:45,453 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-17 19:20:45,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-17 19:20:45,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-17 19:20:45,455 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-17 19:20:45,456 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-17 19:20:45,702 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2024-09-17 19:20:45,702 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-17 19:20:45,705 INFO L262 TraceCheckSpWp]: Trace formula consists of 881 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-17 19:20:45,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-17 19:20:45,857 INFO L134 CoverageAnalysis]: Checked inductivity of 5369 backedges. 918 proven. 135 refuted. 0 times theorem prover too weak. 4316 trivial. 0 not checked. [2024-09-17 19:20:45,857 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-17 19:20:47,351 INFO L134 CoverageAnalysis]: Checked inductivity of 5369 backedges. 920 proven. 137 refuted. 0 times theorem prover too weak. 4312 trivial. 0 not checked. [2024-09-17 19:20:47,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1349616571] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-17 19:20:47,351 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-17 19:20:47,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 13, 15] total 41 [2024-09-17 19:20:47,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907237938] [2024-09-17 19:20:47,352 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-17 19:20:47,353 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-09-17 19:20:47,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-17 19:20:47,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-09-17 19:20:47,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=1407, Unknown=0, NotChecked=0, Total=1640 [2024-09-17 19:20:47,355 INFO L87 Difference]: Start difference. First operand 153 states and 191 transitions. Second operand has 41 states, 40 states have (on average 2.775) internal successors, (111), 41 states have internal predecessors, (111), 23 states have call successors, (37), 1 states have call predecessors, (37), 16 states have return successors, (46), 29 states have call predecessors, (46), 23 states have call successors, (46) [2024-09-17 19:20:47,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-17 19:20:47,941 INFO L93 Difference]: Finished difference Result 327 states and 426 transitions. [2024-09-17 19:20:47,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-09-17 19:20:47,942 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 2.775) internal successors, (111), 41 states have internal predecessors, (111), 23 states have call successors, (37), 1 states have call predecessors, (37), 16 states have return successors, (46), 29 states have call predecessors, (46), 23 states have call successors, (46) Word has length 436 [2024-09-17 19:20:47,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-17 19:20:47,945 INFO L225 Difference]: With dead ends: 327 [2024-09-17 19:20:47,945 INFO L226 Difference]: Without dead ends: 184 [2024-09-17 19:20:47,947 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1040 GetRequests, 981 SyntacticMatches, 7 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1132 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=416, Invalid=2446, Unknown=0, NotChecked=0, Total=2862 [2024-09-17 19:20:47,948 INFO L434 NwaCegarLoop]: 56 mSDtfsCounter, 97 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 816 SdHoareTripleChecker+Invalid, 924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-17 19:20:47,948 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 816 Invalid, 924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 843 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-17 19:20:47,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-09-17 19:20:47,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 155. [2024-09-17 19:20:47,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 107 states have (on average 1.0373831775700935) internal successors, (111), 105 states have internal predecessors, (111), 31 states have call successors, (31), 24 states have call predecessors, (31), 16 states have return successors, (45), 25 states have call predecessors, (45), 30 states have call successors, (45) [2024-09-17 19:20:47,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 187 transitions. [2024-09-17 19:20:47,968 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 187 transitions. Word has length 436 [2024-09-17 19:20:47,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-17 19:20:47,969 INFO L474 AbstractCegarLoop]: Abstraction has 155 states and 187 transitions. [2024-09-17 19:20:47,969 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 2.775) internal successors, (111), 41 states have internal predecessors, (111), 23 states have call successors, (37), 1 states have call predecessors, (37), 16 states have return successors, (46), 29 states have call predecessors, (46), 23 states have call successors, (46) [2024-09-17 19:20:47,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-17 19:20:47,970 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 187 transitions. [2024-09-17 19:20:47,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2024-09-17 19:20:47,972 INFO L208 NwaCegarLoop]: Found error trace [2024-09-17 19:20:47,972 INFO L216 NwaCegarLoop]: trace histogram [29, 29, 28, 28, 23, 23, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 9, 9, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-17 19:20:47,989 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-09-17 19:20:48,172 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-17 19:20:48,173 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-17 19:20:48,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-17 19:20:48,173 INFO L85 PathProgramCache]: Analyzing trace with hash -47366488, now seen corresponding path program 6 times [2024-09-17 19:20:48,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-17 19:20:48,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559203182] [2024-09-17 19:20:48,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-17 19:20:48,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-17 19:20:48,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:48,411 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-17 19:20:48,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:48,413 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-17 19:20:48,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:48,715 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:48,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:48,874 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:48,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:48,969 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:48,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,027 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:49,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,061 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:49,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,066 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:49,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,069 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:49,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,070 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:49,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,071 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:49,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,072 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-17 19:20:49,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,120 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:49,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,122 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:49,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,125 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-17 19:20:49,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,132 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:49,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,134 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:49,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,139 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:49,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,140 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:49,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,141 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-17 19:20:49,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,155 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:49,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,159 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:49,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,162 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:49,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,163 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:49,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,165 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,166 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-17 19:20:49,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,168 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:49,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,170 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:49,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,171 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-17 19:20:49,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,191 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:49,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,197 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:49,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,201 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:49,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,204 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:49,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,205 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:49,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,206 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:49,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,207 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-17 19:20:49,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,209 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:49,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,211 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:49,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,214 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-17 19:20:49,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,218 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:49,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,221 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:49,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,222 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:49,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,225 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:49,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,229 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-17 19:20:49,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,303 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:49,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,355 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:49,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,397 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:49,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,472 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:49,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,489 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:49,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,492 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:49,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,496 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-17 19:20:49,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,501 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:49,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,505 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:49,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,510 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-17 19:20:49,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,521 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:49,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,524 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:49,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,526 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:49,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,527 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:49,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:49,530 INFO L134 CoverageAnalysis]: Checked inductivity of 4370 backedges. 726 proven. 662 refuted. 0 times theorem prover too weak. 2982 trivial. 0 not checked. [2024-09-17 19:20:49,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-17 19:20:49,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559203182] [2024-09-17 19:20:49,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559203182] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-17 19:20:49,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [651500160] [2024-09-17 19:20:49,531 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-17 19:20:49,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-17 19:20:49,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-17 19:20:49,533 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-17 19:20:49,534 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-17 19:20:49,735 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2024-09-17 19:20:49,735 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-17 19:20:49,737 INFO L262 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-17 19:20:49,741 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-17 19:20:49,849 INFO L134 CoverageAnalysis]: Checked inductivity of 4370 backedges. 603 proven. 95 refuted. 0 times theorem prover too weak. 3672 trivial. 0 not checked. [2024-09-17 19:20:49,849 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-17 19:20:50,979 INFO L134 CoverageAnalysis]: Checked inductivity of 4370 backedges. 607 proven. 101 refuted. 0 times theorem prover too weak. 3662 trivial. 0 not checked. [2024-09-17 19:20:50,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [651500160] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-17 19:20:50,980 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-17 19:20:50,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 10, 13] total 36 [2024-09-17 19:20:50,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760433385] [2024-09-17 19:20:50,980 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-17 19:20:50,981 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-09-17 19:20:50,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-17 19:20:50,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-09-17 19:20:50,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=1077, Unknown=0, NotChecked=0, Total=1260 [2024-09-17 19:20:50,982 INFO L87 Difference]: Start difference. First operand 155 states and 187 transitions. Second operand has 36 states, 35 states have (on average 2.742857142857143) internal successors, (96), 36 states have internal predecessors, (96), 21 states have call successors, (32), 1 states have call predecessors, (32), 16 states have return successors, (41), 28 states have call predecessors, (41), 21 states have call successors, (41) [2024-09-17 19:20:51,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-17 19:20:51,549 INFO L93 Difference]: Finished difference Result 233 states and 284 transitions. [2024-09-17 19:20:51,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-09-17 19:20:51,550 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 2.742857142857143) internal successors, (96), 36 states have internal predecessors, (96), 21 states have call successors, (32), 1 states have call predecessors, (32), 16 states have return successors, (41), 28 states have call predecessors, (41), 21 states have call successors, (41) Word has length 395 [2024-09-17 19:20:51,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-17 19:20:51,552 INFO L225 Difference]: With dead ends: 233 [2024-09-17 19:20:51,553 INFO L226 Difference]: Without dead ends: 209 [2024-09-17 19:20:51,554 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 949 GetRequests, 889 SyntacticMatches, 6 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1044 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=442, Invalid=2638, Unknown=0, NotChecked=0, Total=3080 [2024-09-17 19:20:51,555 INFO L434 NwaCegarLoop]: 47 mSDtfsCounter, 121 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-17 19:20:51,555 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 552 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-17 19:20:51,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-09-17 19:20:51,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 172. [2024-09-17 19:20:51,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 119 states have (on average 1.0336134453781514) internal successors, (123), 117 states have internal predecessors, (123), 35 states have call successors, (35), 27 states have call predecessors, (35), 17 states have return successors, (46), 27 states have call predecessors, (46), 34 states have call successors, (46) [2024-09-17 19:20:51,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 204 transitions. [2024-09-17 19:20:51,577 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 204 transitions. Word has length 395 [2024-09-17 19:20:51,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-17 19:20:51,577 INFO L474 AbstractCegarLoop]: Abstraction has 172 states and 204 transitions. [2024-09-17 19:20:51,578 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 2.742857142857143) internal successors, (96), 36 states have internal predecessors, (96), 21 states have call successors, (32), 1 states have call predecessors, (32), 16 states have return successors, (41), 28 states have call predecessors, (41), 21 states have call successors, (41) [2024-09-17 19:20:51,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-17 19:20:51,578 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 204 transitions. [2024-09-17 19:20:51,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2024-09-17 19:20:51,580 INFO L208 NwaCegarLoop]: Found error trace [2024-09-17 19:20:51,581 INFO L216 NwaCegarLoop]: trace histogram [34, 34, 33, 33, 27, 27, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 11, 10, 7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-17 19:20:51,595 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-09-17 19:20:51,781 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-09-17 19:20:51,781 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-17 19:20:51,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-17 19:20:51,782 INFO L85 PathProgramCache]: Analyzing trace with hash -853718073, now seen corresponding path program 7 times [2024-09-17 19:20:51,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-17 19:20:51,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174695018] [2024-09-17 19:20:51,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-17 19:20:51,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-17 19:20:51,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:54,928 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-17 19:20:54,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:54,930 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-17 19:20:54,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:56,429 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:56,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:57,074 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:57,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:57,320 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:57,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:57,437 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:57,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:57,518 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:57,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:57,572 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:57,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:57,632 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:57,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:57,658 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:57,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:57,684 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:57,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:57,689 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-17 19:20:57,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:57,718 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:57,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:57,722 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:57,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:57,751 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-17 19:20:57,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:57,817 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:57,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:57,829 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:57,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:57,832 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:57,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:57,836 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:57,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:57,841 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-17 19:20:57,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:57,981 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:57,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,001 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:58,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,014 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:58,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,022 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:58,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,028 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:58,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,035 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-17 19:20:58,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,050 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:58,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,055 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:58,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,060 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-17 19:20:58,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,210 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:58,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,249 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:58,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,268 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:58,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,281 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:58,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,286 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:58,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,291 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:58,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,297 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-17 19:20:58,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,310 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:58,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,315 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:58,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,320 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-17 19:20:58,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,340 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:58,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,353 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:58,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,358 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:58,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,362 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:58,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,368 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-17 19:20:58,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,662 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:58,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,748 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:58,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,790 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:58,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,809 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:58,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,822 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:58,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,827 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:58,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,831 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:58,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,836 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-17 19:20:58,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,850 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:58,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,855 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:58,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,860 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-17 19:20:58,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,880 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:58,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,892 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:58,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,898 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:58,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,903 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:58,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,908 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-17 19:20:58,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,946 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:58,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,964 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:58,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,976 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:58,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,981 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:58,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,986 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:20:58,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:58,991 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-17 19:20:58,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:59,004 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:20:59,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:59,010 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:20:59,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:59,017 INFO L134 CoverageAnalysis]: Checked inductivity of 6082 backedges. 0 proven. 2033 refuted. 0 times theorem prover too weak. 4049 trivial. 0 not checked. [2024-09-17 19:20:59,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-17 19:20:59,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174695018] [2024-09-17 19:20:59,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174695018] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-17 19:20:59,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366341966] [2024-09-17 19:20:59,018 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-17 19:20:59,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-17 19:20:59,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-17 19:20:59,020 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-17 19:20:59,042 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-17 19:20:59,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:20:59,284 INFO L262 TraceCheckSpWp]: Trace formula consists of 1047 conjuncts, 271 conjuncts are in the unsatisfiable core [2024-09-17 19:20:59,291 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-17 19:20:59,917 INFO L134 CoverageAnalysis]: Checked inductivity of 6082 backedges. 0 proven. 2033 refuted. 0 times theorem prover too weak. 4049 trivial. 0 not checked. [2024-09-17 19:20:59,917 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-17 19:21:01,994 INFO L134 CoverageAnalysis]: Checked inductivity of 6082 backedges. 0 proven. 2033 refuted. 0 times theorem prover too weak. 4049 trivial. 0 not checked. [2024-09-17 19:21:01,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [366341966] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-17 19:21:01,994 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-17 19:21:01,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40, 40] total 52 [2024-09-17 19:21:01,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636855172] [2024-09-17 19:21:01,995 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-17 19:21:01,995 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-09-17 19:21:01,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-17 19:21:01,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-09-17 19:21:01,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=2527, Unknown=0, NotChecked=0, Total=2652 [2024-09-17 19:21:01,998 INFO L87 Difference]: Start difference. First operand 172 states and 204 transitions. Second operand has 52 states, 52 states have (on average 1.2115384615384615) internal successors, (63), 27 states have internal predecessors, (63), 11 states have call successors, (15), 1 states have call predecessors, (15), 15 states have return successors, (36), 36 states have call predecessors, (36), 11 states have call successors, (36) [2024-09-17 19:21:02,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-17 19:21:02,605 INFO L93 Difference]: Finished difference Result 227 states and 289 transitions. [2024-09-17 19:21:02,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-09-17 19:21:02,605 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 1.2115384615384615) internal successors, (63), 27 states have internal predecessors, (63), 11 states have call successors, (15), 1 states have call predecessors, (15), 15 states have return successors, (36), 36 states have call predecessors, (36), 11 states have call successors, (36) Word has length 463 [2024-09-17 19:21:02,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-17 19:21:02,608 INFO L225 Difference]: With dead ends: 227 [2024-09-17 19:21:02,608 INFO L226 Difference]: Without dead ends: 220 [2024-09-17 19:21:02,610 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1198 GetRequests, 1148 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=125, Invalid=2527, Unknown=0, NotChecked=0, Total=2652 [2024-09-17 19:21:02,610 INFO L434 NwaCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 2769 mSDsCounter, 0 mSdLazyCounter, 1516 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2845 SdHoareTripleChecker+Invalid, 1516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-17 19:21:02,610 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2845 Invalid, 1516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1516 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-17 19:21:02,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-09-17 19:21:02,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 215. [2024-09-17 19:21:02,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 145 states have (on average 1.0275862068965518) internal successors, (149), 143 states have internal predecessors, (149), 43 states have call successors, (43), 27 states have call predecessors, (43), 26 states have return successors, (85), 44 states have call predecessors, (85), 42 states have call successors, (85) [2024-09-17 19:21:02,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 277 transitions. [2024-09-17 19:21:02,643 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 277 transitions. Word has length 463 [2024-09-17 19:21:02,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-17 19:21:02,644 INFO L474 AbstractCegarLoop]: Abstraction has 215 states and 277 transitions. [2024-09-17 19:21:02,644 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 1.2115384615384615) internal successors, (63), 27 states have internal predecessors, (63), 11 states have call successors, (15), 1 states have call predecessors, (15), 15 states have return successors, (36), 36 states have call predecessors, (36), 11 states have call successors, (36) [2024-09-17 19:21:02,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-17 19:21:02,644 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 277 transitions. [2024-09-17 19:21:02,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2024-09-17 19:21:02,647 INFO L208 NwaCegarLoop]: Found error trace [2024-09-17 19:21:02,647 INFO L216 NwaCegarLoop]: trace histogram [34, 34, 33, 33, 29, 27, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 12, 11, 7, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-17 19:21:02,665 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-09-17 19:21:02,848 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-17 19:21:02,848 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-17 19:21:02,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-17 19:21:02,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1691644729, now seen corresponding path program 8 times [2024-09-17 19:21:02,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-17 19:21:02,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443164935] [2024-09-17 19:21:02,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-17 19:21:02,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-17 19:21:02,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,186 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-17 19:21:03,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,188 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-17 19:21:03,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,459 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:03,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,587 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:03,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,671 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:03,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,716 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:03,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,746 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:03,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,770 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:03,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,792 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:03,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,806 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:21:03,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,808 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:21:03,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,810 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-17 19:21:03,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,814 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:03,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,815 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:21:03,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,816 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-17 19:21:03,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,822 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:03,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,825 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:03,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,826 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:21:03,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,829 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:21:03,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,830 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-17 19:21:03,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,840 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:03,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,844 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:03,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,846 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:03,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,847 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:21:03,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,848 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:21:03,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,849 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-17 19:21:03,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,851 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:03,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,852 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:21:03,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,853 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-17 19:21:03,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,874 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:03,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,885 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:03,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,891 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:03,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,907 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:03,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,920 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:21:03,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,941 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-17 19:21:03,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,943 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-17 19:21:03,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,944 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:03,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,945 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:21:03,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,946 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-17 19:21:03,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,949 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:03,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,950 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:03,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,951 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:21:03,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,952 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:21:03,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,954 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2024-09-17 19:21:03,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,967 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:03,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,976 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:03,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,981 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:03,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,984 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:03,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,986 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:03,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,987 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:21:03,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,988 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:21:03,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,989 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-17 19:21:03,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,991 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:03,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,992 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:21:03,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,993 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-17 19:21:03,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,996 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:03,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,998 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:03,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,999 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:21:03,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:03,999 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:21:04,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:04,000 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-17 19:21:04,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:04,006 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:04,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:04,009 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:04,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:04,011 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:04,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:04,012 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:21:04,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:04,013 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:21:04,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:04,014 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-17 19:21:04,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:04,016 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:04,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:04,017 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:21:04,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:04,019 INFO L134 CoverageAnalysis]: Checked inductivity of 6137 backedges. 497 proven. 1238 refuted. 0 times theorem prover too weak. 4402 trivial. 0 not checked. [2024-09-17 19:21:04,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-17 19:21:04,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443164935] [2024-09-17 19:21:04,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443164935] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-17 19:21:04,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291184920] [2024-09-17 19:21:04,019 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-17 19:21:04,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-17 19:21:04,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-17 19:21:04,021 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-17 19:21:04,022 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-17 19:21:04,256 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-17 19:21:04,256 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-17 19:21:04,259 INFO L262 TraceCheckSpWp]: Trace formula consists of 1051 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-17 19:21:04,264 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-17 19:21:04,401 INFO L134 CoverageAnalysis]: Checked inductivity of 6137 backedges. 532 proven. 628 refuted. 0 times theorem prover too weak. 4977 trivial. 0 not checked. [2024-09-17 19:21:04,401 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-17 19:21:06,339 INFO L134 CoverageAnalysis]: Checked inductivity of 6137 backedges. 534 proven. 649 refuted. 0 times theorem prover too weak. 4954 trivial. 0 not checked. [2024-09-17 19:21:06,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1291184920] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-17 19:21:06,340 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-17 19:21:06,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 12, 17] total 36 [2024-09-17 19:21:06,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610510077] [2024-09-17 19:21:06,340 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-17 19:21:06,341 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-09-17 19:21:06,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-17 19:21:06,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-09-17 19:21:06,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=1086, Unknown=0, NotChecked=0, Total=1260 [2024-09-17 19:21:06,342 INFO L87 Difference]: Start difference. First operand 215 states and 277 transitions. Second operand has 36 states, 35 states have (on average 2.9714285714285715) internal successors, (104), 36 states have internal predecessors, (104), 24 states have call successors, (33), 1 states have call predecessors, (33), 16 states have return successors, (44), 23 states have call predecessors, (44), 24 states have call successors, (44) [2024-09-17 19:21:06,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-17 19:21:06,928 INFO L93 Difference]: Finished difference Result 434 states and 585 transitions. [2024-09-17 19:21:06,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-09-17 19:21:06,929 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 2.9714285714285715) internal successors, (104), 36 states have internal predecessors, (104), 24 states have call successors, (33), 1 states have call predecessors, (33), 16 states have return successors, (44), 23 states have call predecessors, (44), 24 states have call successors, (44) Word has length 465 [2024-09-17 19:21:06,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-17 19:21:06,932 INFO L225 Difference]: With dead ends: 434 [2024-09-17 19:21:06,932 INFO L226 Difference]: Without dead ends: 175 [2024-09-17 19:21:06,935 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1111 GetRequests, 1048 SyntacticMatches, 8 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1123 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=459, Invalid=2733, Unknown=0, NotChecked=0, Total=3192 [2024-09-17 19:21:06,935 INFO L434 NwaCegarLoop]: 45 mSDtfsCounter, 95 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 945 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 1020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-17 19:21:06,935 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 615 Invalid, 1020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 945 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-17 19:21:06,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-09-17 19:21:06,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 157. [2024-09-17 19:21:06,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 109 states have (on average 1.036697247706422) internal successors, (113), 107 states have internal predecessors, (113), 31 states have call successors, (31), 25 states have call predecessors, (31), 16 states have return successors, (34), 24 states have call predecessors, (34), 30 states have call successors, (34) [2024-09-17 19:21:06,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 178 transitions. [2024-09-17 19:21:06,959 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 178 transitions. Word has length 465 [2024-09-17 19:21:06,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-17 19:21:06,959 INFO L474 AbstractCegarLoop]: Abstraction has 157 states and 178 transitions. [2024-09-17 19:21:06,959 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 2.9714285714285715) internal successors, (104), 36 states have internal predecessors, (104), 24 states have call successors, (33), 1 states have call predecessors, (33), 16 states have return successors, (44), 23 states have call predecessors, (44), 24 states have call successors, (44) [2024-09-17 19:21:06,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-17 19:21:06,960 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 178 transitions. [2024-09-17 19:21:06,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2024-09-17 19:21:06,962 INFO L208 NwaCegarLoop]: Found error trace [2024-09-17 19:21:06,963 INFO L216 NwaCegarLoop]: trace histogram [40, 40, 37, 37, 31, 31, 20, 20, 20, 20, 20, 20, 20, 18, 18, 18, 18, 18, 18, 18, 13, 11, 9, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-17 19:21:06,980 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-09-17 19:21:07,163 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-17 19:21:07,163 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-17 19:21:07,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-17 19:21:07,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1544679608, now seen corresponding path program 9 times [2024-09-17 19:21:07,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-17 19:21:07,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389868571] [2024-09-17 19:21:07,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-17 19:21:07,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-17 19:21:07,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:07,491 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-17 19:21:07,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:07,492 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-17 19:21:07,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:07,760 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:07,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:07,902 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:07,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,008 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:08,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,065 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:08,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,106 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:08,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,127 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:08,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,131 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:08,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,132 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:08,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,134 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:21:08,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,135 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:21:08,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,136 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-17 19:21:08,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,168 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:08,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,170 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:21:08,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,171 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-17 19:21:08,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,176 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:08,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,177 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:08,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,178 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:21:08,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,178 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:21:08,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,179 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-17 19:21:08,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,187 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:08,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,190 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:08,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,191 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:08,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,192 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:21:08,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,193 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:21:08,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,193 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-17 19:21:08,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,194 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:08,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,195 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:21:08,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,196 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-17 19:21:08,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,228 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:08,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,254 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:08,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,277 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:08,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,289 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:21:08,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,291 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:21:08,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,292 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-17 19:21:08,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,295 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:08,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,296 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:21:08,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,297 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2024-09-17 19:21:08,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,305 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:08,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,309 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:08,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,311 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:08,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,313 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:08,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,313 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:21:08,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,314 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:21:08,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,314 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-17 19:21:08,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,316 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:08,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,317 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:21:08,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,318 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-17 19:21:08,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,320 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:08,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,321 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:08,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,322 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:21:08,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,323 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:21:08,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,324 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-09-17 19:21:08,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,338 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:08,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,344 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:08,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,350 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:08,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,353 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:08,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,355 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:08,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,356 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:21:08,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,357 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:21:08,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,358 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-17 19:21:08,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,360 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:08,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,361 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:21:08,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,362 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-17 19:21:08,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,364 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:08,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,366 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:08,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,367 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:21:08,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,367 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:21:08,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,368 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-17 19:21:08,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,372 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:08,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,374 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:08,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,376 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:08,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,376 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:21:08,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,377 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-17 19:21:08,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,378 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-17 19:21:08,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,379 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-17 19:21:08,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,380 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-17 19:21:08,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:21:08,381 INFO L134 CoverageAnalysis]: Checked inductivity of 8086 backedges. 575 proven. 1278 refuted. 0 times theorem prover too weak. 6233 trivial. 0 not checked. [2024-09-17 19:21:08,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-17 19:21:08,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389868571] [2024-09-17 19:21:08,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389868571] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-17 19:21:08,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1575854418] [2024-09-17 19:21:08,382 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-17 19:21:08,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-17 19:21:08,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-17 19:21:08,383 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-17 19:21:08,384 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-17 19:21:08,657 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 30 check-sat command(s) [2024-09-17 19:21:08,657 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-17 19:21:08,660 INFO L262 TraceCheckSpWp]: Trace formula consists of 1000 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-17 19:21:08,664 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-17 19:21:08,781 INFO L134 CoverageAnalysis]: Checked inductivity of 8086 backedges. 423 proven. 918 refuted. 0 times theorem prover too weak. 6745 trivial. 0 not checked. [2024-09-17 19:21:08,781 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-17 19:21:11,018 INFO L134 CoverageAnalysis]: Checked inductivity of 8086 backedges. 429 proven. 936 refuted. 0 times theorem prover too weak. 6721 trivial. 0 not checked. [2024-09-17 19:21:11,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1575854418] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-17 19:21:11,018 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-17 19:21:11,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 12, 17] total 36 [2024-09-17 19:21:11,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818658913] [2024-09-17 19:21:11,018 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-17 19:21:11,019 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-09-17 19:21:11,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-17 19:21:11,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-09-17 19:21:11,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=1075, Unknown=0, NotChecked=0, Total=1260 [2024-09-17 19:21:11,020 INFO L87 Difference]: Start difference. First operand 157 states and 178 transitions. Second operand has 36 states, 35 states have (on average 3.0285714285714285) internal successors, (106), 36 states have internal predecessors, (106), 24 states have call successors, (36), 1 states have call predecessors, (36), 16 states have return successors, (47), 26 states have call predecessors, (47), 24 states have call successors, (47) [2024-09-17 19:21:11,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-17 19:21:11,441 INFO L93 Difference]: Finished difference Result 283 states and 324 transitions. [2024-09-17 19:21:11,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-09-17 19:21:11,442 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 3.0285714285714285) internal successors, (106), 36 states have internal predecessors, (106), 24 states have call successors, (36), 1 states have call predecessors, (36), 16 states have return successors, (47), 26 states have call predecessors, (47), 24 states have call successors, (47) Word has length 531 [2024-09-17 19:21:11,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-17 19:21:11,443 INFO L225 Difference]: With dead ends: 283 [2024-09-17 19:21:11,443 INFO L226 Difference]: Without dead ends: 0 [2024-09-17 19:21:11,445 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1252 GetRequests, 1197 SyntacticMatches, 8 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 854 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=343, Invalid=2009, Unknown=0, NotChecked=0, Total=2352 [2024-09-17 19:21:11,445 INFO L434 NwaCegarLoop]: 37 mSDtfsCounter, 72 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-17 19:21:11,446 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 404 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-17 19:21:11,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-17 19:21:11,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-17 19:21:11,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-17 19:21:11,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-17 19:21:11,447 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 531 [2024-09-17 19:21:11,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-17 19:21:11,447 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-17 19:21:11,447 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 3.0285714285714285) internal successors, (106), 36 states have internal predecessors, (106), 24 states have call successors, (36), 1 states have call predecessors, (36), 16 states have return successors, (47), 26 states have call predecessors, (47), 24 states have call successors, (47) [2024-09-17 19:21:11,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-17 19:21:11,448 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-17 19:21:11,448 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-17 19:21:11,450 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-09-17 19:21:11,471 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-09-17 19:21:11,651 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-09-17 19:21:11,655 INFO L408 BasicCegarLoop]: Path program histogram: [9, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-17 19:21:11,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-09-17 19:21:23,079 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-17 19:21:23,094 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-09-17 19:21:23,110 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-09-17 19:21:23,111 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.09 07:21:23 BoogieIcfgContainer [2024-09-17 19:21:23,111 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-17 19:21:23,111 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-09-17 19:21:23,111 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-09-17 19:21:23,111 INFO L274 PluginConnector]: Witness Printer initialized [2024-09-17 19:21:23,112 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 07:20:19" (3/4) ... [2024-09-17 19:21:23,114 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-09-17 19:21:23,167 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml [2024-09-17 19:21:23,168 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-09-17 19:21:23,169 INFO L158 Benchmark]: Toolchain (without parser) took 64123.49ms. Allocated memory was 186.6MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 116.4MB in the beginning and 848.0MB in the end (delta: -731.7MB). Peak memory consumption was 466.7MB. Max. memory is 16.1GB. [2024-09-17 19:21:23,169 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 186.6MB. Free memory is still 142.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-17 19:21:23,169 INFO L158 Benchmark]: CACSL2BoogieTranslator took 235.09ms. Allocated memory is still 186.6MB. Free memory was 116.1MB in the beginning and 105.0MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-17 19:21:23,170 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.29ms. Allocated memory is still 186.6MB. Free memory was 105.0MB in the beginning and 103.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-17 19:21:23,170 INFO L158 Benchmark]: Boogie Preprocessor took 27.93ms. Allocated memory is still 186.6MB. Free memory was 103.8MB in the beginning and 102.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-17 19:21:23,170 INFO L158 Benchmark]: RCFGBuilder took 311.12ms. Allocated memory is still 186.6MB. Free memory was 102.2MB in the beginning and 153.5MB in the end (delta: -51.3MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2024-09-17 19:21:23,170 INFO L158 Benchmark]: TraceAbstraction took 63464.24ms. Allocated memory was 186.6MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 152.5MB in the beginning and 851.2MB in the end (delta: -698.7MB). Peak memory consumption was 841.6MB. Max. memory is 16.1GB. [2024-09-17 19:21:23,170 INFO L158 Benchmark]: Witness Printer took 56.97ms. Allocated memory is still 1.4GB. Free memory was 851.2MB in the beginning and 848.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-17 19:21:23,172 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 186.6MB. Free memory is still 142.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 235.09ms. Allocated memory is still 186.6MB. Free memory was 116.1MB in the beginning and 105.0MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.29ms. Allocated memory is still 186.6MB. Free memory was 105.0MB in the beginning and 103.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.93ms. Allocated memory is still 186.6MB. Free memory was 103.8MB in the beginning and 102.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 311.12ms. Allocated memory is still 186.6MB. Free memory was 102.2MB in the beginning and 153.5MB in the end (delta: -51.3MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. * TraceAbstraction took 63464.24ms. Allocated memory was 186.6MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 152.5MB in the beginning and 851.2MB in the end (delta: -698.7MB). Peak memory consumption was 841.6MB. Max. memory is 16.1GB. * Witness Printer took 56.97ms. Allocated memory is still 1.4GB. Free memory was 851.2MB in the beginning and 848.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 41]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 51.9s, OverallIterations: 17, TraceHistogramMax: 40, PathProgramHistogramMax: 9, EmptinessCheckTime: 0.1s, AutomataDifference: 6.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1009 SdHoareTripleChecker+Valid, 4.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 921 mSDsluCounter, 8608 SdHoareTripleChecker+Invalid, 3.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7975 mSDsCounter, 851 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9015 IncrementalHoareTripleChecker+Invalid, 9866 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 851 mSolverCounterUnsat, 633 mSDtfsCounter, 9015 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9577 GetRequests, 8949 SyntacticMatches, 77 SemanticMatches, 551 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6854 ImplicationChecksByTransitivity, 6.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=215occurred in iteration=15, InterpolantAutomatonStates: 414, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 17 MinimizatonAttempts, 237 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 39.0s InterpolantComputationTime, 7921 NumberOfCodeBlocks, 7172 NumberOfCodeBlocksAsserted, 107 NumberOfCheckSat, 11821 ConstructedInterpolants, 0 QuantifiedInterpolants, 17843 SizeOfPredicates, 58 NumberOfNonLiveVariables, 7300 ConjunctsInSsa, 439 ConjunctsInUnsatCore, 47 InterpolantComputations, 2 PerfectInterpolantSequences, 118375/137721 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ProcedureContractResult [Line: 19]: Procedure Contract for fibo2 Derived contract for procedure fibo2. Ensures: (((((\old(n) < 6) || (\result == 13)) || (7 < \old(n))) && (((\result == 0) || (\old(n) == 1)) || (1 < \old(n)))) && (((\result == 1) || (\old(n) < 1)) || (3 < \old(n)))) - ProcedureContractResult [Line: 9]: Procedure Contract for fibo1 Derived contract for procedure fibo1. Ensures: ((((\result == 0) || (1 < \old(n))) || ((\old(n) == 1) && (\result == 1))) && ((21 == \result) || (\old(n) != 8))) RESULT: Ultimate proved your program to be correct! [2024-09-17 19:21:23,199 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE