./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive/Fibonacci02.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/Fibonacci02.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5189fb62 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/AutomizerReachWitnessValidation.xml -i ../sv-benchmarks/c/recursive/Fibonacci02.c ../results/automizer-verification-files/SV-COMP24_unreach-call/Fibonacci02.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-dev-5189fb6-m [2024-09-13 06:25:01,012 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-13 06:25:01,089 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-13 06:25:01,093 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-13 06:25:01,093 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-13 06:25:01,126 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-13 06:25:01,127 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-13 06:25:01,127 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-13 06:25:01,128 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-13 06:25:01,129 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-13 06:25:01,130 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-13 06:25:01,130 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-13 06:25:01,131 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-13 06:25:01,133 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-13 06:25:01,133 INFO L153 SettingsManager]: * Use SBE=true [2024-09-13 06:25:01,133 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-13 06:25:01,133 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-13 06:25:01,134 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-13 06:25:01,134 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-13 06:25:01,137 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-13 06:25:01,137 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-13 06:25:01,138 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-13 06:25:01,138 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-13 06:25:01,138 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-13 06:25:01,138 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-13 06:25:01,139 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-13 06:25:01,139 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-13 06:25:01,139 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-13 06:25:01,139 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-13 06:25:01,139 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-13 06:25:01,140 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-13 06:25:01,140 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-13 06:25:01,140 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 06:25:01,140 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-13 06:25:01,141 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-13 06:25:01,141 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-13 06:25:01,141 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-13 06:25:01,141 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-13 06:25:01,142 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-13 06:25:01,143 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-13 06:25:01,143 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-13 06:25:01,143 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-13 06:25:01,143 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-13 06:25:01,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-13 06:25:01,431 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-13 06:25:01,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-13 06:25:01,436 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-13 06:25:01,436 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-13 06:25:01,438 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../results/automizer-verification-files/SV-COMP24_unreach-call/Fibonacci02.yml/witness-2.1.yml [2024-09-13 06:25:01,507 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-13 06:25:01,507 INFO L274 PluginConnector]: CDTParser initialized [2024-09-13 06:25:01,507 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/recursive/Fibonacci02.c [2024-09-13 06:25:03,175 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-13 06:25:03,387 INFO L384 CDTParser]: Found 1 translation units. [2024-09-13 06:25:03,388 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive/Fibonacci02.c [2024-09-13 06:25:03,395 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/926871e50/f6135891d3224e9ba7b47645bf8b4f63/FLAG3907f2f24 [2024-09-13 06:25:03,414 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/926871e50/f6135891d3224e9ba7b47645bf8b4f63 [2024-09-13 06:25:03,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-13 06:25:03,416 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-13 06:25:03,418 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-13 06:25:03,419 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-13 06:25:03,424 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-13 06:25:03,425 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 06:25:01" (1/2) ... [2024-09-13 06:25:03,426 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fcff218 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 06:25:03, skipping insertion in model container [2024-09-13 06:25:03,426 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 06:25:01" (1/2) ... [2024-09-13 06:25:03,428 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7dea754c and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 06:25:03, skipping insertion in model container [2024-09-13 06:25:03,428 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 06:25:03" (2/2) ... [2024-09-13 06:25:03,428 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fcff218 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 06:25:03, skipping insertion in model container [2024-09-13 06:25:03,429 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 06:25:03" (2/2) ... [2024-09-13 06:25:03,434 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-13 06:25:03,435 INFO L1541 ArrayList]: Function contract at [L16]: requires null, ensures ((\result == 0) || (0 < \old(n))) [2024-09-13 06:25:03,452 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-13 06:25:03,634 WARN L247 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/Fibonacci02.c[715,728] [2024-09-13 06:25:03,644 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 06:25:03,655 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global [2024-09-13 06:25:03,701 WARN L247 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/Fibonacci02.c[715,728] [2024-09-13 06:25:03,702 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 06:25:03,717 INFO L204 MainTranslator]: Completed translation [2024-09-13 06:25:03,717 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 06:25:03 WrapperNode [2024-09-13 06:25:03,717 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-13 06:25:03,718 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-13 06:25:03,719 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-13 06:25:03,719 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-13 06:25:03,725 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 06:25:03" (1/1) ... [2024-09-13 06:25:03,730 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 06:25:03" (1/1) ... [2024-09-13 06:25:03,745 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2024-09-13 06:25:03,745 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-13 06:25:03,746 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-13 06:25:03,746 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-13 06:25:03,746 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-13 06:25:03,755 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 06:25:03" (1/1) ... [2024-09-13 06:25:03,756 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 06:25:03" (1/1) ... [2024-09-13 06:25:03,757 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 06:25:03" (1/1) ... [2024-09-13 06:25:03,763 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure fibonacci is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-13 06:25:03,764 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 06:25:03" (1/1) ... [2024-09-13 06:25:03,764 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 06:25:03" (1/1) ... [2024-09-13 06:25:03,770 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 06:25:03" (1/1) ... [2024-09-13 06:25:03,772 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 06:25:03" (1/1) ... [2024-09-13 06:25:03,772 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 06:25:03" (1/1) ... [2024-09-13 06:25:03,773 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 06:25:03" (1/1) ... [2024-09-13 06:25:03,774 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-13 06:25:03,775 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-13 06:25:03,775 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-13 06:25:03,775 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-13 06:25:03,776 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 06:25:03" (1/1) ... [2024-09-13 06:25:03,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 06:25:03,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 06:25:03,810 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) [2024-09-13 06:25:03,817 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 [2024-09-13 06:25:03,862 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2024-09-13 06:25:03,864 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2024-09-13 06:25:03,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-13 06:25:03,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-13 06:25:03,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-13 06:25:03,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-13 06:25:03,922 INFO L242 CfgBuilder]: Building ICFG [2024-09-13 06:25:03,924 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-13 06:25:04,027 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-09-13 06:25:04,028 INFO L291 CfgBuilder]: Performing block encoding [2024-09-13 06:25:04,049 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-13 06:25:04,049 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-13 06:25:04,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 06:25:04 BoogieIcfgContainer [2024-09-13 06:25:04,049 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-13 06:25:04,052 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-13 06:25:04,052 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-13 06:25:04,056 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-13 06:25:04,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 06:25:01" (1/4) ... [2024-09-13 06:25:04,057 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e686e31 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 13.09 06:25:04, skipping insertion in model container [2024-09-13 06:25:04,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.09 06:25:03" (2/4) ... [2024-09-13 06:25:04,058 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e686e31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.09 06:25:04, skipping insertion in model container [2024-09-13 06:25:04,058 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 06:25:03" (3/4) ... [2024-09-13 06:25:04,058 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e686e31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.09 06:25:04, skipping insertion in model container [2024-09-13 06:25:04,058 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 06:25:04" (4/4) ... [2024-09-13 06:25:04,059 INFO L112 eAbstractionObserver]: Analyzing ICFG Fibonacci02.c [2024-09-13 06:25:04,080 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-13 06:25:04,080 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-09-13 06:25:04,136 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-13 06:25:04,145 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=None, 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;@1fea65d3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-13 06:25:04,145 INFO L337 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-09-13 06:25:04,150 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 13 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-13 06:25:04,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-09-13 06:25:04,157 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 06:25:04,157 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-09-13 06:25:04,158 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION === [fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 06:25:04,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 06:25:04,168 INFO L85 PathProgramCache]: Analyzing trace with hash 63842220, now seen corresponding path program 1 times [2024-09-13 06:25:04,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 06:25:04,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185017654] [2024-09-13 06:25:04,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 06:25:04,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 06:25:04,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:04,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-13 06:25:04,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 06:25:04,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185017654] [2024-09-13 06:25:04,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185017654] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-13 06:25:04,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-13 06:25:04,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-13 06:25:04,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401220638] [2024-09-13 06:25:04,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 06:25:04,407 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-13 06:25:04,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 06:25:04,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-13 06:25:04,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-13 06:25:04,443 INFO L87 Difference]: Start difference. First operand has 18 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 13 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 06:25:04,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 06:25:04,485 INFO L93 Difference]: Finished difference Result 20 states and 25 transitions. [2024-09-13 06:25:04,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-13 06:25:04,488 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-09-13 06:25:04,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 06:25:04,495 INFO L225 Difference]: With dead ends: 20 [2024-09-13 06:25:04,495 INFO L226 Difference]: Without dead ends: 18 [2024-09-13 06:25:04,497 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-13 06:25:04,500 INFO L434 NwaCegarLoop]: 18 mSDtfsCounter, 1 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-13 06:25:04,501 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 32 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-13 06:25:04,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2024-09-13 06:25:04,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2024-09-13 06:25:04,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-13 06:25:04,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2024-09-13 06:25:04,544 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 5 [2024-09-13 06:25:04,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 06:25:04,545 INFO L474 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2024-09-13 06:25:04,545 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 06:25:04,545 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2024-09-13 06:25:04,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-09-13 06:25:04,546 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 06:25:04,547 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-09-13 06:25:04,547 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-13 06:25:04,547 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION === [fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 06:25:04,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 06:25:04,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1979109578, now seen corresponding path program 1 times [2024-09-13 06:25:04,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 06:25:04,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818434348] [2024-09-13 06:25:04,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 06:25:04,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 06:25:04,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:04,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-13 06:25:04,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 06:25:04,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818434348] [2024-09-13 06:25:04,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818434348] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-13 06:25:04,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-13 06:25:04,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-13 06:25:04,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874340886] [2024-09-13 06:25:04,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 06:25:04,655 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-13 06:25:04,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 06:25:04,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-13 06:25:04,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-13 06:25:04,663 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand has 4 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 06:25:04,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 06:25:04,702 INFO L93 Difference]: Finished difference Result 27 states and 33 transitions. [2024-09-13 06:25:04,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-13 06:25:04,703 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-09-13 06:25:04,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 06:25:04,704 INFO L225 Difference]: With dead ends: 27 [2024-09-13 06:25:04,705 INFO L226 Difference]: Without dead ends: 27 [2024-09-13 06:25:04,705 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-13 06:25:04,707 INFO L434 NwaCegarLoop]: 15 mSDtfsCounter, 8 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-13 06:25:04,708 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 36 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-13 06:25:04,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-09-13 06:25:04,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2024-09-13 06:25:04,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 18 states have internal predecessors, (22), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-13 06:25:04,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2024-09-13 06:25:04,717 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 6 [2024-09-13 06:25:04,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 06:25:04,718 INFO L474 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2024-09-13 06:25:04,718 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 06:25:04,719 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2024-09-13 06:25:04,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-09-13 06:25:04,720 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 06:25:04,721 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 06:25:04,721 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-13 06:25:04,721 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 06:25:04,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 06:25:04,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1680014884, now seen corresponding path program 1 times [2024-09-13 06:25:04,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 06:25:04,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380490624] [2024-09-13 06:25:04,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 06:25:04,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 06:25:04,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:04,785 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-13 06:25:04,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:04,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-13 06:25:04,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 06:25:04,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380490624] [2024-09-13 06:25:04,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380490624] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-13 06:25:04,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-13 06:25:04,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-13 06:25:04,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746714930] [2024-09-13 06:25:04,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 06:25:04,822 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-13 06:25:04,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 06:25:04,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-13 06:25:04,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-13 06:25:04,827 INFO L87 Difference]: Start difference. First operand 26 states and 32 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-13 06:25:04,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 06:25:04,904 INFO L93 Difference]: Finished difference Result 34 states and 45 transitions. [2024-09-13 06:25:04,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-13 06:25:04,905 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2024-09-13 06:25:04,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 06:25:04,906 INFO L225 Difference]: With dead ends: 34 [2024-09-13 06:25:04,906 INFO L226 Difference]: Without dead ends: 32 [2024-09-13 06:25:04,906 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-13 06:25:04,907 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 9 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-13 06:25:04,908 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 26 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-13 06:25:04,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-09-13 06:25:04,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 26. [2024-09-13 06:25:04,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-13 06:25:04,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2024-09-13 06:25:04,915 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 9 [2024-09-13 06:25:04,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 06:25:04,915 INFO L474 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2024-09-13 06:25:04,915 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-13 06:25:04,916 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2024-09-13 06:25:04,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-09-13 06:25:04,916 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 06:25:04,916 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-09-13 06:25:04,917 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-13 06:25:04,917 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION === [fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 06:25:04,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 06:25:04,918 INFO L85 PathProgramCache]: Analyzing trace with hash 198300645, now seen corresponding path program 1 times [2024-09-13 06:25:04,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 06:25:04,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023299954] [2024-09-13 06:25:04,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 06:25:04,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 06:25:04,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:04,993 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-13 06:25:04,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 06:25:04,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023299954] [2024-09-13 06:25:04,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023299954] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 06:25:04,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260752010] [2024-09-13 06:25:04,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 06:25:04,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 06:25:04,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 06:25:04,997 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) [2024-09-13 06:25:05,000 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-13 06:25:05,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:05,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-13 06:25:05,048 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 06:25:05,143 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-13 06:25:05,143 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 06:25:05,211 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-13 06:25:05,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [260752010] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 06:25:05,212 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 06:25:05,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-09-13 06:25:05,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346934097] [2024-09-13 06:25:05,212 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 06:25:05,212 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-13 06:25:05,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 06:25:05,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-13 06:25:05,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-09-13 06:25:05,214 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 11 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 5 states have call successors, (5), 5 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 06:25:05,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 06:25:05,434 INFO L93 Difference]: Finished difference Result 58 states and 72 transitions. [2024-09-13 06:25:05,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-13 06:25:05,435 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 5 states have call successors, (5), 5 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-09-13 06:25:05,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 06:25:05,436 INFO L225 Difference]: With dead ends: 58 [2024-09-13 06:25:05,436 INFO L226 Difference]: Without dead ends: 58 [2024-09-13 06:25:05,437 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2024-09-13 06:25:05,438 INFO L434 NwaCegarLoop]: 16 mSDtfsCounter, 43 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-13 06:25:05,438 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 63 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-13 06:25:05,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-09-13 06:25:05,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 53. [2024-09-13 06:25:05,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 35 states have (on average 1.1142857142857143) internal successors, (39), 36 states have internal predecessors, (39), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-13 06:25:05,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 61 transitions. [2024-09-13 06:25:05,450 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 61 transitions. Word has length 10 [2024-09-13 06:25:05,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 06:25:05,450 INFO L474 AbstractCegarLoop]: Abstraction has 53 states and 61 transitions. [2024-09-13 06:25:05,450 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 5 states have call successors, (5), 5 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 06:25:05,452 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 61 transitions. [2024-09-13 06:25:05,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-09-13 06:25:05,452 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 06:25:05,453 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 06:25:05,470 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-13 06:25:05,653 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 06:25:05,654 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION === [fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 06:25:05,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 06:25:05,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1422833789, now seen corresponding path program 1 times [2024-09-13 06:25:05,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 06:25:05,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132743709] [2024-09-13 06:25:05,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 06:25:05,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 06:25:05,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:05,731 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-09-13 06:25:05,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:05,736 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-09-13 06:25:05,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 06:25:05,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132743709] [2024-09-13 06:25:05,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132743709] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-13 06:25:05,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-13 06:25:05,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-13 06:25:05,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329334700] [2024-09-13 06:25:05,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 06:25:05,741 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-13 06:25:05,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 06:25:05,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-13 06:25:05,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-13 06:25:05,741 INFO L87 Difference]: Start difference. First operand 53 states and 61 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-13 06:25:05,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 06:25:05,795 INFO L93 Difference]: Finished difference Result 57 states and 74 transitions. [2024-09-13 06:25:05,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-13 06:25:05,796 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2024-09-13 06:25:05,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 06:25:05,798 INFO L225 Difference]: With dead ends: 57 [2024-09-13 06:25:05,800 INFO L226 Difference]: Without dead ends: 57 [2024-09-13 06:25:05,801 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-13 06:25:05,801 INFO L434 NwaCegarLoop]: 10 mSDtfsCounter, 9 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-13 06:25:05,803 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 16 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-13 06:25:05,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-09-13 06:25:05,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 51. [2024-09-13 06:25:05,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 34 states have (on average 1.088235294117647) internal successors, (37), 34 states have internal predecessors, (37), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-13 06:25:05,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 59 transitions. [2024-09-13 06:25:05,819 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 59 transitions. Word has length 21 [2024-09-13 06:25:05,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 06:25:05,819 INFO L474 AbstractCegarLoop]: Abstraction has 51 states and 59 transitions. [2024-09-13 06:25:05,820 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-13 06:25:05,820 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 59 transitions. [2024-09-13 06:25:05,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-09-13 06:25:05,822 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 06:25:05,822 INFO L216 NwaCegarLoop]: trace histogram [7, 7, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2024-09-13 06:25:05,822 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-09-13 06:25:05,823 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 06:25:05,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 06:25:05,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1855040273, now seen corresponding path program 1 times [2024-09-13 06:25:05,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 06:25:05,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910870393] [2024-09-13 06:25:05,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 06:25:05,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 06:25:05,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:05,960 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-13 06:25:05,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:06,062 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:06,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:06,124 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:06,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:06,148 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:06,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:06,159 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:06,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:06,305 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:06,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:06,314 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:06,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:06,324 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 34 proven. 34 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-09-13 06:25:06,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 06:25:06,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910870393] [2024-09-13 06:25:06,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910870393] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 06:25:06,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1159248467] [2024-09-13 06:25:06,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 06:25:06,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 06:25:06,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 06:25:06,327 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) [2024-09-13 06:25:06,335 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-13 06:25:06,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:06,386 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-13 06:25:06,388 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 06:25:06,452 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 11 proven. 48 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-09-13 06:25:06,452 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 06:25:06,832 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 11 proven. 55 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-13 06:25:06,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1159248467] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 06:25:06,833 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 06:25:06,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 9] total 17 [2024-09-13 06:25:06,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007498372] [2024-09-13 06:25:06,833 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 06:25:06,834 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-13 06:25:06,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 06:25:06,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-13 06:25:06,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2024-09-13 06:25:06,835 INFO L87 Difference]: Start difference. First operand 51 states and 59 transitions. Second operand has 17 states, 15 states have (on average 3.066666666666667) internal successors, (46), 17 states have internal predecessors, (46), 12 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (17), 8 states have call predecessors, (17), 12 states have call successors, (17) [2024-09-13 06:25:06,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 06:25:06,975 INFO L93 Difference]: Finished difference Result 103 states and 137 transitions. [2024-09-13 06:25:06,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-13 06:25:06,976 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 3.066666666666667) internal successors, (46), 17 states have internal predecessors, (46), 12 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (17), 8 states have call predecessors, (17), 12 states have call successors, (17) Word has length 50 [2024-09-13 06:25:06,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 06:25:06,979 INFO L225 Difference]: With dead ends: 103 [2024-09-13 06:25:06,980 INFO L226 Difference]: Without dead ends: 93 [2024-09-13 06:25:06,980 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 104 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2024-09-13 06:25:06,981 INFO L434 NwaCegarLoop]: 8 mSDtfsCounter, 40 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-13 06:25:06,982 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 38 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-13 06:25:06,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-09-13 06:25:06,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 71. [2024-09-13 06:25:06,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 46 states have (on average 1.0869565217391304) internal successors, (50), 47 states have internal predecessors, (50), 16 states have call successors, (16), 6 states have call predecessors, (16), 8 states have return successors, (27), 17 states have call predecessors, (27), 16 states have call successors, (27) [2024-09-13 06:25:06,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 93 transitions. [2024-09-13 06:25:06,996 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 93 transitions. Word has length 50 [2024-09-13 06:25:06,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 06:25:06,996 INFO L474 AbstractCegarLoop]: Abstraction has 71 states and 93 transitions. [2024-09-13 06:25:06,996 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 3.066666666666667) internal successors, (46), 17 states have internal predecessors, (46), 12 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (17), 8 states have call predecessors, (17), 12 states have call successors, (17) [2024-09-13 06:25:06,996 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 93 transitions. [2024-09-13 06:25:06,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-09-13 06:25:06,998 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 06:25:06,998 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 6, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1] [2024-09-13 06:25:07,014 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-09-13 06:25:07,202 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-13 06:25:07,203 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 06:25:07,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 06:25:07,204 INFO L85 PathProgramCache]: Analyzing trace with hash 25607238, now seen corresponding path program 2 times [2024-09-13 06:25:07,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 06:25:07,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198257245] [2024-09-13 06:25:07,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 06:25:07,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 06:25:07,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:07,260 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-13 06:25:07,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:07,307 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:07,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:07,350 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:07,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:07,439 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:07,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:07,445 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:07,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:07,452 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:07,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:07,474 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-13 06:25:07,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:07,481 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:07,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:07,484 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:07,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:07,491 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 47 proven. 42 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-09-13 06:25:07,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 06:25:07,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198257245] [2024-09-13 06:25:07,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198257245] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 06:25:07,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061297074] [2024-09-13 06:25:07,492 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-13 06:25:07,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 06:25:07,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 06:25:07,494 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) [2024-09-13 06:25:07,496 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-13 06:25:07,552 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-13 06:25:07,552 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-13 06:25:07,553 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-13 06:25:07,555 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 06:25:07,665 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 17 proven. 84 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-09-13 06:25:07,666 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 06:25:08,237 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 17 proven. 99 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-09-13 06:25:08,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2061297074] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 06:25:08,238 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 06:25:08,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 11] total 19 [2024-09-13 06:25:08,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896108714] [2024-09-13 06:25:08,238 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 06:25:08,239 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-09-13 06:25:08,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 06:25:08,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-09-13 06:25:08,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2024-09-13 06:25:08,240 INFO L87 Difference]: Start difference. First operand 71 states and 93 transitions. Second operand has 19 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 19 states have internal predecessors, (52), 13 states have call successors, (16), 1 states have call predecessors, (16), 8 states have return successors, (20), 8 states have call predecessors, (20), 13 states have call successors, (20) [2024-09-13 06:25:08,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 06:25:08,491 INFO L93 Difference]: Finished difference Result 133 states and 183 transitions. [2024-09-13 06:25:08,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-13 06:25:08,492 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 19 states have internal predecessors, (52), 13 states have call successors, (16), 1 states have call predecessors, (16), 8 states have return successors, (20), 8 states have call predecessors, (20), 13 states have call successors, (20) Word has length 63 [2024-09-13 06:25:08,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 06:25:08,494 INFO L225 Difference]: With dead ends: 133 [2024-09-13 06:25:08,494 INFO L226 Difference]: Without dead ends: 114 [2024-09-13 06:25:08,494 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 130 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=211, Invalid=545, Unknown=0, NotChecked=0, Total=756 [2024-09-13 06:25:08,495 INFO L434 NwaCegarLoop]: 12 mSDtfsCounter, 45 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-13 06:25:08,495 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 65 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-13 06:25:08,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-09-13 06:25:08,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 96. [2024-09-13 06:25:08,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 63 states have (on average 1.0952380952380953) internal successors, (69), 63 states have internal predecessors, (69), 21 states have call successors, (21), 9 states have call predecessors, (21), 11 states have return successors, (40), 23 states have call predecessors, (40), 21 states have call successors, (40) [2024-09-13 06:25:08,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 130 transitions. [2024-09-13 06:25:08,507 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 130 transitions. Word has length 63 [2024-09-13 06:25:08,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 06:25:08,507 INFO L474 AbstractCegarLoop]: Abstraction has 96 states and 130 transitions. [2024-09-13 06:25:08,507 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 19 states have internal predecessors, (52), 13 states have call successors, (16), 1 states have call predecessors, (16), 8 states have return successors, (20), 8 states have call predecessors, (20), 13 states have call successors, (20) [2024-09-13 06:25:08,507 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 130 transitions. [2024-09-13 06:25:08,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-09-13 06:25:08,511 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 06:25:08,512 INFO L216 NwaCegarLoop]: trace histogram [21, 21, 17, 10, 10, 10, 10, 10, 10, 10, 7, 4, 1, 1, 1, 1, 1, 1] [2024-09-13 06:25:08,530 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-13 06:25:08,715 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-09-13 06:25:08,716 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 06:25:08,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 06:25:08,717 INFO L85 PathProgramCache]: Analyzing trace with hash -250868966, now seen corresponding path program 3 times [2024-09-13 06:25:08,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 06:25:08,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109428356] [2024-09-13 06:25:08,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 06:25:08,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 06:25:08,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:08,879 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-13 06:25:08,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:09,029 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:09,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:09,104 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:09,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:09,154 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:09,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:09,188 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:09,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:09,204 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:09,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:09,209 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:09,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:09,214 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:09,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:09,225 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:09,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:09,228 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:09,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:09,231 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:25:09,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:09,259 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:09,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:09,270 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:09,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:09,277 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:09,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:09,282 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:09,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:09,285 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:09,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:09,287 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:09,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:09,289 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:09,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:09,294 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:09,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:09,297 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:09,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:09,299 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:25:09,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:09,303 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 57 proven. 377 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2024-09-13 06:25:09,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 06:25:09,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109428356] [2024-09-13 06:25:09,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109428356] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 06:25:09,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [362526534] [2024-09-13 06:25:09,304 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-13 06:25:09,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 06:25:09,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 06:25:09,306 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) [2024-09-13 06:25:09,314 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-13 06:25:09,386 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2024-09-13 06:25:09,386 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-13 06:25:09,387 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-13 06:25:09,391 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 06:25:09,485 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 393 proven. 34 refuted. 0 times theorem prover too weak. 729 trivial. 0 not checked. [2024-09-13 06:25:09,486 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 06:25:10,183 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 393 proven. 41 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2024-09-13 06:25:10,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [362526534] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 06:25:10,183 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 06:25:10,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9, 11] total 25 [2024-09-13 06:25:10,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720575313] [2024-09-13 06:25:10,184 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 06:25:10,185 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-09-13 06:25:10,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 06:25:10,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-09-13 06:25:10,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=470, Unknown=0, NotChecked=0, Total=600 [2024-09-13 06:25:10,186 INFO L87 Difference]: Start difference. First operand 96 states and 130 transitions. Second operand has 25 states, 24 states have (on average 2.625) internal successors, (63), 25 states have internal predecessors, (63), 13 states have call successors, (17), 1 states have call predecessors, (17), 11 states have return successors, (24), 17 states have call predecessors, (24), 13 states have call successors, (24) [2024-09-13 06:25:10,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 06:25:10,532 INFO L93 Difference]: Finished difference Result 157 states and 197 transitions. [2024-09-13 06:25:10,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-13 06:25:10,533 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 2.625) internal successors, (63), 25 states have internal predecessors, (63), 13 states have call successors, (17), 1 states have call predecessors, (17), 11 states have return successors, (24), 17 states have call predecessors, (24), 13 states have call successors, (24) Word has length 146 [2024-09-13 06:25:10,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 06:25:10,535 INFO L225 Difference]: With dead ends: 157 [2024-09-13 06:25:10,535 INFO L226 Difference]: Without dead ends: 138 [2024-09-13 06:25:10,536 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 317 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=361, Invalid=1121, Unknown=0, NotChecked=0, Total=1482 [2024-09-13 06:25:10,536 INFO L434 NwaCegarLoop]: 19 mSDtfsCounter, 86 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-13 06:25:10,537 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 98 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-13 06:25:10,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-09-13 06:25:10,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 117. [2024-09-13 06:25:10,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 78 states have (on average 1.0128205128205128) internal successors, (79), 77 states have internal predecessors, (79), 25 states have call successors, (25), 12 states have call predecessors, (25), 13 states have return successors, (39), 27 states have call predecessors, (39), 25 states have call successors, (39) [2024-09-13 06:25:10,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 143 transitions. [2024-09-13 06:25:10,548 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 143 transitions. Word has length 146 [2024-09-13 06:25:10,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 06:25:10,548 INFO L474 AbstractCegarLoop]: Abstraction has 117 states and 143 transitions. [2024-09-13 06:25:10,548 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 2.625) internal successors, (63), 25 states have internal predecessors, (63), 13 states have call successors, (17), 1 states have call predecessors, (17), 11 states have return successors, (24), 17 states have call predecessors, (24), 13 states have call successors, (24) [2024-09-13 06:25:10,549 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 143 transitions. [2024-09-13 06:25:10,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-09-13 06:25:10,554 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 06:25:10,555 INFO L216 NwaCegarLoop]: trace histogram [31, 31, 25, 15, 15, 15, 15, 15, 15, 15, 10, 6, 1, 1, 1, 1, 1, 1] [2024-09-13 06:25:10,577 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-13 06:25:10,758 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 06:25:10,759 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 06:25:10,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 06:25:10,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1451312475, now seen corresponding path program 4 times [2024-09-13 06:25:10,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 06:25:10,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946168566] [2024-09-13 06:25:10,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 06:25:10,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 06:25:10,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:10,959 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-13 06:25:10,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:11,180 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:11,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:11,266 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:11,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:11,322 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:11,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:11,359 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:11,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:11,390 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:11,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:11,406 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:11,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:11,410 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:11,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:11,414 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:11,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:11,424 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:11,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:11,427 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:11,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:11,429 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:25:11,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:11,440 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:11,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:11,445 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:11,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:11,447 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:11,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:11,448 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:11,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:11,450 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-13 06:25:11,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:11,560 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:11,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:11,638 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:11,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:11,688 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:11,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:11,742 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:11,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:11,746 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:11,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:11,753 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:11,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:11,757 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:11,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:11,766 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:11,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:11,774 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:11,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:11,776 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:25:11,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:11,788 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:11,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:11,793 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:11,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:11,795 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:11,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:11,797 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:11,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:11,802 INFO L134 CoverageAnalysis]: Checked inductivity of 2580 backedges. 439 proven. 754 refuted. 0 times theorem prover too weak. 1387 trivial. 0 not checked. [2024-09-13 06:25:11,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 06:25:11,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946168566] [2024-09-13 06:25:11,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946168566] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 06:25:11,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116372705] [2024-09-13 06:25:11,803 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-13 06:25:11,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 06:25:11,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 06:25:11,804 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) [2024-09-13 06:25:11,806 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-13 06:25:11,900 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-13 06:25:11,901 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-13 06:25:11,903 INFO L262 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-09-13 06:25:11,911 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 06:25:12,067 INFO L134 CoverageAnalysis]: Checked inductivity of 2580 backedges. 463 proven. 843 refuted. 0 times theorem prover too weak. 1274 trivial. 0 not checked. [2024-09-13 06:25:12,068 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 06:25:14,149 INFO L134 CoverageAnalysis]: Checked inductivity of 2580 backedges. 463 proven. 891 refuted. 0 times theorem prover too weak. 1226 trivial. 0 not checked. [2024-09-13 06:25:14,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116372705] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 06:25:14,149 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 06:25:14,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 15, 23] total 36 [2024-09-13 06:25:14,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848547777] [2024-09-13 06:25:14,149 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 06:25:14,150 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-09-13 06:25:14,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 06:25:14,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-09-13 06:25:14,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=303, Invalid=957, Unknown=0, NotChecked=0, Total=1260 [2024-09-13 06:25:14,152 INFO L87 Difference]: Start difference. First operand 117 states and 143 transitions. Second operand has 36 states, 35 states have (on average 2.6857142857142855) internal successors, (94), 36 states have internal predecessors, (94), 30 states have call successors, (33), 1 states have call predecessors, (33), 12 states have return successors, (46), 19 states have call predecessors, (46), 30 states have call successors, (46) [2024-09-13 06:25:14,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 06:25:14,573 INFO L93 Difference]: Finished difference Result 186 states and 248 transitions. [2024-09-13 06:25:14,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-09-13 06:25:14,574 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 2.6857142857142855) internal successors, (94), 36 states have internal predecessors, (94), 30 states have call successors, (33), 1 states have call predecessors, (33), 12 states have return successors, (46), 19 states have call predecessors, (46), 30 states have call successors, (46) Word has length 214 [2024-09-13 06:25:14,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 06:25:14,576 INFO L225 Difference]: With dead ends: 186 [2024-09-13 06:25:14,576 INFO L226 Difference]: Without dead ends: 167 [2024-09-13 06:25:14,579 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 526 GetRequests, 465 SyntacticMatches, 11 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 963 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=674, Invalid=1978, Unknown=0, NotChecked=0, Total=2652 [2024-09-13 06:25:14,581 INFO L434 NwaCegarLoop]: 19 mSDtfsCounter, 88 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-13 06:25:14,581 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 110 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-13 06:25:14,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-09-13 06:25:14,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 142. [2024-09-13 06:25:14,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 96 states have (on average 1.0208333333333333) internal successors, (98), 94 states have internal predecessors, (98), 30 states have call successors, (30), 16 states have call predecessors, (30), 15 states have return successors, (56), 31 states have call predecessors, (56), 30 states have call successors, (56) [2024-09-13 06:25:14,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 184 transitions. [2024-09-13 06:25:14,602 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 184 transitions. Word has length 214 [2024-09-13 06:25:14,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 06:25:14,603 INFO L474 AbstractCegarLoop]: Abstraction has 142 states and 184 transitions. [2024-09-13 06:25:14,603 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 2.6857142857142855) internal successors, (94), 36 states have internal predecessors, (94), 30 states have call successors, (33), 1 states have call predecessors, (33), 12 states have return successors, (46), 19 states have call predecessors, (46), 30 states have call successors, (46) [2024-09-13 06:25:14,603 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 184 transitions. [2024-09-13 06:25:14,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2024-09-13 06:25:14,607 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 06:25:14,607 INFO L216 NwaCegarLoop]: trace histogram [53, 53, 43, 26, 26, 26, 26, 26, 26, 26, 17, 10, 1, 1, 1, 1, 1, 1] [2024-09-13 06:25:14,623 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-09-13 06:25:14,811 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 06:25:14,812 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 06:25:14,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 06:25:14,812 INFO L85 PathProgramCache]: Analyzing trace with hash 519075704, now seen corresponding path program 5 times [2024-09-13 06:25:14,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 06:25:14,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621475321] [2024-09-13 06:25:14,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 06:25:14,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 06:25:14,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:15,178 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-13 06:25:15,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:15,596 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:15,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:15,757 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:15,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:15,840 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:15,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:15,895 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:15,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:15,943 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:15,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:15,979 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:15,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:15,996 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:15,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,001 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:16,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,006 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:16,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,013 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:16,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,016 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:16,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,018 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:25:16,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,029 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:16,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,033 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:16,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,035 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:16,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,039 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:16,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,044 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-13 06:25:16,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,059 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:16,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,064 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:16,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,068 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:16,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,070 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:16,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,072 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:16,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,074 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:16,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,078 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:16,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,080 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:16,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,082 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-13 06:25:16,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,255 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:16,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,341 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:16,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,361 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:16,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,371 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:16,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,376 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:16,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,380 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:16,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,383 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:16,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,385 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:16,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,388 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:16,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,394 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:16,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,396 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:16,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,398 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:25:16,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,405 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:16,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,409 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:16,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,410 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:16,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,413 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:16,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,416 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-13 06:25:16,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,457 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:16,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,511 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:16,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,514 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:16,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,518 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:16,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,525 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-13 06:25:16,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,535 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:16,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,538 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:16,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,540 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:16,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,542 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:16,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,546 INFO L134 CoverageAnalysis]: Checked inductivity of 7715 backedges. 1014 proven. 1565 refuted. 0 times theorem prover too weak. 5136 trivial. 0 not checked. [2024-09-13 06:25:16,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 06:25:16,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621475321] [2024-09-13 06:25:16,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621475321] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 06:25:16,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709318031] [2024-09-13 06:25:16,547 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-13 06:25:16,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 06:25:16,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 06:25:16,552 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) [2024-09-13 06:25:16,556 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-13 06:25:16,738 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 42 check-sat command(s) [2024-09-13 06:25:16,738 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-13 06:25:16,742 INFO L262 TraceCheckSpWp]: Trace formula consists of 675 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-13 06:25:16,748 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 06:25:16,925 INFO L134 CoverageAnalysis]: Checked inductivity of 7715 backedges. 2999 proven. 356 refuted. 0 times theorem prover too weak. 4360 trivial. 0 not checked. [2024-09-13 06:25:16,925 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 06:25:19,179 INFO L134 CoverageAnalysis]: Checked inductivity of 7715 backedges. 1755 proven. 599 refuted. 0 times theorem prover too weak. 5361 trivial. 0 not checked. [2024-09-13 06:25:19,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709318031] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 06:25:19,179 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 06:25:19,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 13, 19] total 38 [2024-09-13 06:25:19,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217740678] [2024-09-13 06:25:19,180 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 06:25:19,180 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-09-13 06:25:19,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 06:25:19,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-09-13 06:25:19,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=1100, Unknown=0, NotChecked=0, Total=1406 [2024-09-13 06:25:19,182 INFO L87 Difference]: Start difference. First operand 142 states and 184 transitions. Second operand has 38 states, 37 states have (on average 2.675675675675676) internal successors, (99), 38 states have internal predecessors, (99), 27 states have call successors, (35), 2 states have call predecessors, (35), 15 states have return successors, (50), 25 states have call predecessors, (50), 27 states have call successors, (50) [2024-09-13 06:25:19,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 06:25:19,805 INFO L93 Difference]: Finished difference Result 212 states and 285 transitions. [2024-09-13 06:25:19,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-09-13 06:25:19,806 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 2.675675675675676) internal successors, (99), 38 states have internal predecessors, (99), 27 states have call successors, (35), 2 states have call predecessors, (35), 15 states have return successors, (50), 25 states have call predecessors, (50), 27 states have call successors, (50) Word has length 364 [2024-09-13 06:25:19,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 06:25:19,808 INFO L225 Difference]: With dead ends: 212 [2024-09-13 06:25:19,808 INFO L226 Difference]: Without dead ends: 193 [2024-09-13 06:25:19,809 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 877 GetRequests, 810 SyntacticMatches, 9 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1230 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=803, Invalid=2737, Unknown=0, NotChecked=0, Total=3540 [2024-09-13 06:25:19,810 INFO L434 NwaCegarLoop]: 23 mSDtfsCounter, 177 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-13 06:25:19,810 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 152 Invalid, 756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-13 06:25:19,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-09-13 06:25:19,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 168. [2024-09-13 06:25:19,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 114 states have (on average 1.0175438596491229) internal successors, (116), 112 states have internal predecessors, (116), 36 states have call successors, (36), 20 states have call predecessors, (36), 17 states have return successors, (69), 35 states have call predecessors, (69), 36 states have call successors, (69) [2024-09-13 06:25:19,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 221 transitions. [2024-09-13 06:25:19,832 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 221 transitions. Word has length 364 [2024-09-13 06:25:19,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 06:25:19,833 INFO L474 AbstractCegarLoop]: Abstraction has 168 states and 221 transitions. [2024-09-13 06:25:19,833 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 2.675675675675676) internal successors, (99), 38 states have internal predecessors, (99), 27 states have call successors, (35), 2 states have call predecessors, (35), 15 states have return successors, (50), 25 states have call predecessors, (50), 27 states have call successors, (50) [2024-09-13 06:25:19,833 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 221 transitions. [2024-09-13 06:25:19,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2024-09-13 06:25:19,842 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 06:25:19,842 INFO L216 NwaCegarLoop]: trace histogram [67, 67, 54, 33, 33, 33, 33, 33, 33, 33, 21, 13, 1, 1, 1, 1, 1, 1] [2024-09-13 06:25:19,861 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-09-13 06:25:20,043 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-09-13 06:25:20,044 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 06:25:20,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 06:25:20,044 INFO L85 PathProgramCache]: Analyzing trace with hash -754466991, now seen corresponding path program 6 times [2024-09-13 06:25:20,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 06:25:20,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599899132] [2024-09-13 06:25:20,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 06:25:20,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 06:25:20,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:20,525 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-13 06:25:20,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:20,921 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:20,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,139 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:21,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,247 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:21,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,315 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:21,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,362 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:21,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,402 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:21,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,438 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:21,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,453 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:21,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,457 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:21,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,460 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:21,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,467 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:21,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,471 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:21,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,473 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:25:21,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,481 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:21,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,485 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:21,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,487 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:21,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,491 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:21,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,495 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-13 06:25:21,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,512 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:21,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,517 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:21,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,520 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:21,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,522 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:21,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,524 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:21,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,525 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:21,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,528 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:21,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,531 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:21,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,534 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-13 06:25:21,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,555 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:21,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,562 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:21,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,568 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:21,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,572 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:21,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,575 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:21,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,577 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:21,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,579 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:21,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,585 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:21,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,587 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:21,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,590 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:25:21,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,594 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:21,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,598 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:21,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,600 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:21,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,602 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:21,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,604 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-13 06:25:21,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,664 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:21,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,678 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:21,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,687 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:21,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,692 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:21,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,696 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:21,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,698 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:21,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,700 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:21,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,701 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:21,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,704 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:21,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,706 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:21,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,708 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:25:21,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,713 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:21,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,716 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:21,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,718 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:21,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,720 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:21,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,722 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-13 06:25:21,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,730 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:21,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,735 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:21,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,739 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:21,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,740 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:21,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,742 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:21,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,743 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:21,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,747 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:21,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,748 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:21,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:21,755 INFO L134 CoverageAnalysis]: Checked inductivity of 12387 backedges. 361 proven. 2270 refuted. 0 times theorem prover too weak. 9756 trivial. 0 not checked. [2024-09-13 06:25:21,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 06:25:21,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599899132] [2024-09-13 06:25:21,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599899132] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 06:25:21,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [971611704] [2024-09-13 06:25:21,756 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-13 06:25:21,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 06:25:21,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 06:25:21,758 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) [2024-09-13 06:25:21,760 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-13 06:25:21,955 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 27 check-sat command(s) [2024-09-13 06:25:21,955 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-13 06:25:21,958 INFO L262 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-13 06:25:21,964 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 06:25:22,054 INFO L134 CoverageAnalysis]: Checked inductivity of 12387 backedges. 508 proven. 1816 refuted. 0 times theorem prover too weak. 10063 trivial. 0 not checked. [2024-09-13 06:25:22,054 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 06:25:24,130 INFO L134 CoverageAnalysis]: Checked inductivity of 12387 backedges. 512 proven. 1869 refuted. 0 times theorem prover too weak. 10006 trivial. 0 not checked. [2024-09-13 06:25:24,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [971611704] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 06:25:24,131 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 06:25:24,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 11, 17] total 27 [2024-09-13 06:25:24,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456266087] [2024-09-13 06:25:24,131 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 06:25:24,133 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-09-13 06:25:24,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 06:25:24,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-09-13 06:25:24,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=464, Unknown=0, NotChecked=0, Total=702 [2024-09-13 06:25:24,134 INFO L87 Difference]: Start difference. First operand 168 states and 221 transitions. Second operand has 27 states, 26 states have (on average 2.6923076923076925) internal successors, (70), 27 states have internal predecessors, (70), 22 states have call successors, (25), 1 states have call predecessors, (25), 9 states have return successors, (36), 18 states have call predecessors, (36), 22 states have call successors, (36) [2024-09-13 06:25:24,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 06:25:24,329 INFO L93 Difference]: Finished difference Result 552 states and 796 transitions. [2024-09-13 06:25:24,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-13 06:25:24,332 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.6923076923076925) internal successors, (70), 27 states have internal predecessors, (70), 22 states have call successors, (25), 1 states have call predecessors, (25), 9 states have return successors, (36), 18 states have call predecessors, (36), 22 states have call successors, (36) Word has length 459 [2024-09-13 06:25:24,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 06:25:24,337 INFO L225 Difference]: With dead ends: 552 [2024-09-13 06:25:24,338 INFO L226 Difference]: Without dead ends: 529 [2024-09-13 06:25:24,338 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1068 GetRequests, 1034 SyntacticMatches, 8 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=492, Unknown=0, NotChecked=0, Total=756 [2024-09-13 06:25:24,339 INFO L434 NwaCegarLoop]: 14 mSDtfsCounter, 73 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-13 06:25:24,339 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 76 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-13 06:25:24,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2024-09-13 06:25:24,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 511. [2024-09-13 06:25:24,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 339 states have (on average 1.0176991150442478) internal successors, (345), 334 states have internal predecessors, (345), 118 states have call successors, (118), 54 states have call predecessors, (118), 53 states have return successors, (263), 122 states have call predecessors, (263), 118 states have call successors, (263) [2024-09-13 06:25:24,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 726 transitions. [2024-09-13 06:25:24,377 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 726 transitions. Word has length 459 [2024-09-13 06:25:24,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 06:25:24,380 INFO L474 AbstractCegarLoop]: Abstraction has 511 states and 726 transitions. [2024-09-13 06:25:24,380 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 2.6923076923076925) internal successors, (70), 27 states have internal predecessors, (70), 22 states have call successors, (25), 1 states have call predecessors, (25), 9 states have return successors, (36), 18 states have call predecessors, (36), 22 states have call successors, (36) [2024-09-13 06:25:24,380 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 726 transitions. [2024-09-13 06:25:24,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 746 [2024-09-13 06:25:24,394 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 06:25:24,395 INFO L216 NwaCegarLoop]: trace histogram [109, 109, 88, 54, 54, 54, 54, 54, 54, 54, 34, 21, 1, 1, 1, 1, 1, 1] [2024-09-13 06:25:24,422 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-13 06:25:24,599 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 06:25:24,600 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 06:25:24,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 06:25:24,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1051889360, now seen corresponding path program 7 times [2024-09-13 06:25:24,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 06:25:24,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999379229] [2024-09-13 06:25:24,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 06:25:24,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 06:25:24,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:33,817 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-13 06:25:33,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:38,357 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:38,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:40,055 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:40,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:40,629 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:40,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:40,902 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:40,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:41,033 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:41,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:41,131 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:41,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:41,200 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:41,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:41,253 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:41,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:41,258 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:41,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:41,284 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:41,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:41,289 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:41,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:41,309 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:41,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:41,317 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:41,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:41,323 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:25:41,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:41,347 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:41,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:41,360 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:41,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:41,365 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:41,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:41,373 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:41,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:41,379 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-13 06:25:41,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:41,426 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:41,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:41,447 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:41,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:41,461 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:41,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:41,466 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:41,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:41,473 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:41,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:41,479 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:41,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:41,493 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:41,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:41,499 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:41,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:41,507 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-13 06:25:41,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:41,606 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:41,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:41,647 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:41,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:41,668 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:41,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:41,681 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:41,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:41,686 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:41,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:41,693 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:41,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:41,699 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:41,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:41,728 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:41,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:41,733 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:41,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:41,740 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:25:41,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:41,762 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:41,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:41,779 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:41,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:41,785 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:41,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:41,795 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:41,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:41,801 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-13 06:25:41,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:42,040 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:42,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:42,140 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:42,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:42,182 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:42,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:42,208 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:42,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:42,222 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:42,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:42,228 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:42,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:42,234 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:42,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:42,240 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:42,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:42,254 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:42,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:42,260 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:42,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:42,269 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:25:42,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:42,293 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:42,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:42,307 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:42,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:42,312 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:42,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:42,318 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:42,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:42,324 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-13 06:25:42,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:42,371 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:42,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:42,392 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:42,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:42,407 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:42,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:42,414 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:42,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:42,420 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:42,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:42,427 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:42,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:42,442 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:42,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:42,448 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:42,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:42,455 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2024-09-13 06:25:42,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,095 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,334 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,431 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,471 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,491 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,504 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,509 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:43,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,515 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:43,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,521 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:43,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,537 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,543 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:43,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,549 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:25:43,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,577 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,591 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,596 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:43,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,602 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:43,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,608 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-13 06:25:43,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,648 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,666 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,678 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,683 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:43,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,688 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:43,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,694 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:43,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,707 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,712 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:43,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,718 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-13 06:25:43,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,812 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,853 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,877 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,890 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,896 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:43,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,901 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:43,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,906 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:43,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,920 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,926 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:43,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,932 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:25:43,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,953 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,967 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,972 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:43,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,979 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:43,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,988 INFO L134 CoverageAnalysis]: Checked inductivity of 33096 backedges. 0 proven. 10899 refuted. 0 times theorem prover too weak. 22197 trivial. 0 not checked. [2024-09-13 06:25:43,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 06:25:43,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999379229] [2024-09-13 06:25:43,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999379229] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 06:25:43,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813776060] [2024-09-13 06:25:43,989 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-13 06:25:43,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 06:25:43,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 06:25:43,991 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) [2024-09-13 06:25:43,992 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-13 06:25:44,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:44,320 INFO L262 TraceCheckSpWp]: Trace formula consists of 1675 conjuncts, 439 conjuncts are in the unsatisfiable core [2024-09-13 06:25:44,333 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 06:25:45,015 INFO L134 CoverageAnalysis]: Checked inductivity of 33096 backedges. 0 proven. 10899 refuted. 0 times theorem prover too weak. 22197 trivial. 0 not checked. [2024-09-13 06:25:45,015 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 06:25:48,746 INFO L134 CoverageAnalysis]: Checked inductivity of 33096 backedges. 0 proven. 10899 refuted. 0 times theorem prover too weak. 22197 trivial. 0 not checked. [2024-09-13 06:25:48,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813776060] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 06:25:48,746 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 06:25:48,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 36 [2024-09-13 06:25:48,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044907684] [2024-09-13 06:25:48,747 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 06:25:48,748 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-09-13 06:25:48,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 06:25:48,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-09-13 06:25:48,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=1175, Unknown=0, NotChecked=0, Total=1260 [2024-09-13 06:25:48,749 INFO L87 Difference]: Start difference. First operand 511 states and 726 transitions. Second operand has 36 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 19 states have internal predecessors, (41), 8 states have call successors, (9), 1 states have call predecessors, (9), 9 states have return successors, (24), 24 states have call predecessors, (24), 8 states have call successors, (24) [2024-09-13 06:25:49,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 06:25:49,361 INFO L93 Difference]: Finished difference Result 824 states and 1361 transitions. [2024-09-13 06:25:49,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-09-13 06:25:49,362 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 19 states have internal predecessors, (41), 8 states have call successors, (9), 1 states have call predecessors, (9), 9 states have return successors, (24), 24 states have call predecessors, (24), 8 states have call successors, (24) Word has length 745 [2024-09-13 06:25:49,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 06:25:49,369 INFO L225 Difference]: With dead ends: 824 [2024-09-13 06:25:49,370 INFO L226 Difference]: Without dead ends: 819 [2024-09-13 06:25:49,370 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1928 GetRequests, 1893 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=89, Invalid=1243, Unknown=0, NotChecked=0, Total=1332 [2024-09-13 06:25:49,371 INFO L434 NwaCegarLoop]: 47 mSDtfsCounter, 0 mSDsluCounter, 867 mSDsCounter, 0 mSdLazyCounter, 1416 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 1417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-13 06:25:49,372 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 914 Invalid, 1417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1416 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-13 06:25:49,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2024-09-13 06:25:49,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 591. [2024-09-13 06:25:49,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 388 states have (on average 1.0154639175257731) internal successors, (394), 383 states have internal predecessors, (394), 131 states have call successors, (131), 54 states have call predecessors, (131), 71 states have return successors, (340), 153 states have call predecessors, (340), 131 states have call successors, (340) [2024-09-13 06:25:49,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 865 transitions. [2024-09-13 06:25:49,420 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 865 transitions. Word has length 745 [2024-09-13 06:25:49,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 06:25:49,421 INFO L474 AbstractCegarLoop]: Abstraction has 591 states and 865 transitions. [2024-09-13 06:25:49,421 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 19 states have internal predecessors, (41), 8 states have call successors, (9), 1 states have call predecessors, (9), 9 states have return successors, (24), 24 states have call predecessors, (24), 8 states have call successors, (24) [2024-09-13 06:25:49,421 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 865 transitions. [2024-09-13 06:25:49,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 923 [2024-09-13 06:25:49,431 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 06:25:49,431 INFO L216 NwaCegarLoop]: trace histogram [135, 135, 109, 67, 67, 67, 67, 67, 67, 67, 42, 26, 1, 1, 1, 1, 1, 1] [2024-09-13 06:25:49,449 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-09-13 06:25:49,632 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 06:25:49,632 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 06:25:49,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 06:25:49,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1850575541, now seen corresponding path program 8 times [2024-09-13 06:25:49,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 06:25:49,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733736797] [2024-09-13 06:25:49,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 06:25:49,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 06:25:49,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:50,596 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-13 06:25:50,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:51,603 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:51,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:51,899 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:51,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,067 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:52,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,169 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:52,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,235 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:52,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,280 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:52,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,313 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:52,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,338 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:52,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,351 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:52,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,354 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:52,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,356 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:52,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,361 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:52,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,362 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:52,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,363 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:25:52,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,369 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:52,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,372 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:52,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,374 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:52,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,375 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:52,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,376 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-13 06:25:52,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,395 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:52,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,401 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:52,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,404 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:52,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,406 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:52,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,407 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:52,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,409 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:52,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,411 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:52,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,413 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:52,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,415 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-13 06:25:52,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,438 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:52,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,444 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:52,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,448 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:52,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,451 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:52,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,453 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:52,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,454 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:52,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,455 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:52,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,464 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:52,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,465 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:52,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,467 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:25:52,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,473 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:52,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,476 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:52,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,478 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:52,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,479 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:52,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,481 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-13 06:25:52,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,524 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:52,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,534 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:52,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,541 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:52,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,545 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:52,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,548 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:52,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,550 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:52,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,551 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:52,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,552 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:52,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,555 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:52,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,557 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:52,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,559 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:25:52,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,563 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:52,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,566 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:52,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,567 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:52,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,569 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:52,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,570 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-13 06:25:52,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,577 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:52,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,582 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:52,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,585 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:52,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,588 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:52,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,589 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:52,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,591 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:52,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,595 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:52,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,597 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:52,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,599 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2024-09-13 06:25:52,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:52,938 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:52,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,216 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:53,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,398 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:53,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,518 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:53,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,574 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:53,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,583 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:53,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,587 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:53,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,590 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:53,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,592 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:53,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,593 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:53,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,594 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:53,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,597 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:53,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,598 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:53,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,600 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:25:53,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,644 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:53,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,686 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:53,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,688 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:53,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,690 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:53,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,692 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-13 06:25:53,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,702 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:53,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,706 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:53,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,708 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:53,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,710 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:53,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,711 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:53,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,712 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:53,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,714 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:53,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,716 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:53,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,717 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-13 06:25:53,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,728 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:53,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,732 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:53,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,735 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:53,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,736 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:53,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,737 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:53,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,738 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:53,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,740 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:53,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,741 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:53,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,742 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2024-09-13 06:25:53,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,759 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:53,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,766 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:53,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,769 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:53,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,772 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:53,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,774 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:53,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,775 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:53,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,780 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:53,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,783 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:53,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,785 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:53,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,786 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:25:53,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,790 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:53,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,792 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:53,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,793 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:53,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,794 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:53,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,796 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-09-13 06:25:53,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,814 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:53,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,821 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:53,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,825 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:53,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,828 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:53,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,829 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:53,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,830 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:53,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,831 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:53,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,834 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:53,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,835 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:53,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,836 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:25:53,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,842 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:53,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,846 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:53,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,847 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:53,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,848 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:53,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:53,852 INFO L134 CoverageAnalysis]: Checked inductivity of 50910 backedges. 3821 proven. 6861 refuted. 0 times theorem prover too weak. 40228 trivial. 0 not checked. [2024-09-13 06:25:53,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 06:25:53,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733736797] [2024-09-13 06:25:53,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733736797] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 06:25:53,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220256220] [2024-09-13 06:25:53,853 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-13 06:25:53,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 06:25:53,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 06:25:53,855 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) [2024-09-13 06:25:53,856 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-13 06:25:54,143 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-13 06:25:54,143 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-13 06:25:54,150 INFO L262 TraceCheckSpWp]: Trace formula consists of 2068 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-09-13 06:25:54,165 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 06:25:54,296 INFO L134 CoverageAnalysis]: Checked inductivity of 50910 backedges. 4129 proven. 2457 refuted. 0 times theorem prover too weak. 44324 trivial. 0 not checked. [2024-09-13 06:25:54,296 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 06:25:58,406 INFO L134 CoverageAnalysis]: Checked inductivity of 50910 backedges. 4129 proven. 2549 refuted. 0 times theorem prover too weak. 44232 trivial. 0 not checked. [2024-09-13 06:25:58,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220256220] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 06:25:58,407 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 06:25:58,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 13, 21] total 45 [2024-09-13 06:25:58,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733246504] [2024-09-13 06:25:58,407 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 06:25:58,408 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-09-13 06:25:58,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 06:25:58,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-09-13 06:25:58,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=459, Invalid=1521, Unknown=0, NotChecked=0, Total=1980 [2024-09-13 06:25:58,411 INFO L87 Difference]: Start difference. First operand 591 states and 865 transitions. Second operand has 45 states, 44 states have (on average 2.477272727272727) internal successors, (109), 45 states have internal predecessors, (109), 34 states have call successors, (40), 1 states have call predecessors, (40), 19 states have return successors, (61), 35 states have call predecessors, (61), 34 states have call successors, (61) [2024-09-13 06:25:59,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 06:25:59,254 INFO L93 Difference]: Finished difference Result 328 states and 482 transitions. [2024-09-13 06:25:59,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-09-13 06:25:59,255 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 44 states have (on average 2.477272727272727) internal successors, (109), 45 states have internal predecessors, (109), 34 states have call successors, (40), 1 states have call predecessors, (40), 19 states have return successors, (61), 35 states have call predecessors, (61), 34 states have call successors, (61) Word has length 922 [2024-09-13 06:25:59,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 06:25:59,258 INFO L225 Difference]: With dead ends: 328 [2024-09-13 06:25:59,258 INFO L226 Difference]: Without dead ends: 249 [2024-09-13 06:25:59,260 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 2175 GetRequests, 2091 SyntacticMatches, 10 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2050 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1246, Invalid=4454, Unknown=0, NotChecked=0, Total=5700 [2024-09-13 06:25:59,261 INFO L434 NwaCegarLoop]: 36 mSDtfsCounter, 239 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 1030 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 1238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 1030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-13 06:25:59,261 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 215 Invalid, 1238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 1030 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-13 06:25:59,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-09-13 06:25:59,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 220. [2024-09-13 06:25:59,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 152 states have (on average 1.013157894736842) internal successors, (154), 150 states have internal predecessors, (154), 46 states have call successors, (46), 30 states have call predecessors, (46), 21 states have return successors, (74), 39 states have call predecessors, (74), 46 states have call successors, (74) [2024-09-13 06:25:59,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 274 transitions. [2024-09-13 06:25:59,270 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 274 transitions. Word has length 922 [2024-09-13 06:25:59,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 06:25:59,270 INFO L474 AbstractCegarLoop]: Abstraction has 220 states and 274 transitions. [2024-09-13 06:25:59,271 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 44 states have (on average 2.477272727272727) internal successors, (109), 45 states have internal predecessors, (109), 34 states have call successors, (40), 1 states have call predecessors, (40), 19 states have return successors, (61), 35 states have call predecessors, (61), 34 states have call successors, (61) [2024-09-13 06:25:59,271 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 274 transitions. [2024-09-13 06:25:59,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 923 [2024-09-13 06:25:59,277 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 06:25:59,278 INFO L216 NwaCegarLoop]: trace histogram [135, 135, 109, 67, 67, 67, 67, 67, 67, 67, 42, 26, 1, 1, 1, 1, 1, 1] [2024-09-13 06:25:59,304 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-13 06:25:59,478 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-09-13 06:25:59,479 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 06:25:59,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 06:25:59,479 INFO L85 PathProgramCache]: Analyzing trace with hash -242319763, now seen corresponding path program 9 times [2024-09-13 06:25:59,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 06:25:59,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841559506] [2024-09-13 06:25:59,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 06:25:59,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 06:25:59,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:00,502 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-13 06:26:00,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:01,534 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:01,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,135 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,439 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,605 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,700 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,761 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,807 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,844 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,896 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,899 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:02,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,901 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:02,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,903 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:26:02,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,907 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,909 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:02,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,910 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:26:02,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,916 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,919 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,920 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:02,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,921 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:02,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,922 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-13 06:26:02,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,933 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,937 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,940 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,942 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:02,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,943 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:02,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,944 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:26:02,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,947 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,948 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:02,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,949 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-13 06:26:02,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,968 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,975 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,979 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,982 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,986 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:02,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,988 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:02,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,991 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:26:02,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,994 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,995 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:02,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,997 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:26:02,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,001 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,007 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,009 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:03,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,010 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:03,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,011 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-13 06:26:03,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,048 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,058 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,070 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,074 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,076 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,078 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:03,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,079 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:03,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,081 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:26:03,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,084 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,087 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:03,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,088 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:26:03,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,093 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,095 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,098 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:03,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,099 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:03,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,100 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-13 06:26:03,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,107 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,111 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,114 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,116 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:03,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,117 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:03,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,118 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:26:03,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,121 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,123 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:03,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,124 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2024-09-13 06:26:03,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,225 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,290 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,335 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,370 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,401 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,415 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:03,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,418 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:03,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,421 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:26:03,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,426 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,428 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:03,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,429 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:26:03,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,437 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,441 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,442 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:03,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,444 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:03,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,446 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-13 06:26:03,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,458 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,464 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,468 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,470 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:03,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,472 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:03,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,474 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:26:03,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,478 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,480 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:03,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,483 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 636 [2024-09-13 06:26:03,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,524 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,543 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,554 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,562 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,567 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,571 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,573 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:03,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,574 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:03,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,575 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:26:03,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,579 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,581 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:03,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,582 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:26:03,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,587 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,591 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,593 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:03,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,594 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:03,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,596 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-13 06:26:03,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,603 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,608 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,612 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,613 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:03,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,615 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:03,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,616 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:26:03,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,620 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,622 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:03,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,623 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-13 06:26:03,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,636 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,644 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,649 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,653 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,655 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:03,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,657 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:03,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,659 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:26:03,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,662 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,664 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:03,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,666 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:26:03,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,671 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,674 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:03,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,677 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:03,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,678 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:03,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:03,682 INFO L134 CoverageAnalysis]: Checked inductivity of 50910 backedges. 3247 proven. 6576 refuted. 0 times theorem prover too weak. 41087 trivial. 0 not checked. [2024-09-13 06:26:03,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 06:26:03,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841559506] [2024-09-13 06:26:03,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841559506] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 06:26:03,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953669316] [2024-09-13 06:26:03,683 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-13 06:26:03,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 06:26:03,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 06:26:03,684 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) [2024-09-13 06:26:03,685 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-13 06:26:03,923 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 36 check-sat command(s) [2024-09-13 06:26:03,923 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-13 06:26:03,927 INFO L262 TraceCheckSpWp]: Trace formula consists of 664 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-13 06:26:03,936 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 06:26:04,065 INFO L134 CoverageAnalysis]: Checked inductivity of 50910 backedges. 1209 proven. 5377 refuted. 0 times theorem prover too weak. 44324 trivial. 0 not checked. [2024-09-13 06:26:04,065 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 06:26:08,635 INFO L134 CoverageAnalysis]: Checked inductivity of 50910 backedges. 1201 proven. 5477 refuted. 0 times theorem prover too weak. 44232 trivial. 0 not checked. [2024-09-13 06:26:08,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1953669316] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 06:26:08,635 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 06:26:08,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 14, 22] total 45 [2024-09-13 06:26:08,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95301106] [2024-09-13 06:26:08,636 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 06:26:08,637 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-09-13 06:26:08,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 06:26:08,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-09-13 06:26:08,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=463, Invalid=1517, Unknown=0, NotChecked=0, Total=1980 [2024-09-13 06:26:08,639 INFO L87 Difference]: Start difference. First operand 220 states and 274 transitions. Second operand has 45 states, 44 states have (on average 2.3636363636363638) internal successors, (104), 45 states have internal predecessors, (104), 35 states have call successors, (38), 1 states have call predecessors, (38), 17 states have return successors, (58), 29 states have call predecessors, (58), 35 states have call successors, (58) [2024-09-13 06:26:09,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 06:26:09,124 INFO L93 Difference]: Finished difference Result 221 states and 269 transitions. [2024-09-13 06:26:09,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-09-13 06:26:09,125 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 44 states have (on average 2.3636363636363638) internal successors, (104), 45 states have internal predecessors, (104), 35 states have call successors, (38), 1 states have call predecessors, (38), 17 states have return successors, (58), 29 states have call predecessors, (58), 35 states have call successors, (58) Word has length 922 [2024-09-13 06:26:09,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 06:26:09,126 INFO L225 Difference]: With dead ends: 221 [2024-09-13 06:26:09,126 INFO L226 Difference]: Without dead ends: 0 [2024-09-13 06:26:09,127 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 2155 GetRequests, 2090 SyntacticMatches, 10 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1305 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=757, Invalid=2435, Unknown=0, NotChecked=0, Total=3192 [2024-09-13 06:26:09,127 INFO L434 NwaCegarLoop]: 36 mSDtfsCounter, 145 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 733 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-13 06:26:09,128 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 147 Invalid, 849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 733 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-13 06:26:09,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-13 06:26:09,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-13 06:26:09,128 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) [2024-09-13 06:26:09,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-13 06:26:09,128 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 922 [2024-09-13 06:26:09,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 06:26:09,129 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-13 06:26:09,129 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 44 states have (on average 2.3636363636363638) internal successors, (104), 45 states have internal predecessors, (104), 35 states have call successors, (38), 1 states have call predecessors, (38), 17 states have return successors, (58), 29 states have call predecessors, (58), 35 states have call successors, (58) [2024-09-13 06:26:09,129 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-13 06:26:09,129 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-13 06:26:09,132 INFO L785 garLoopResultBuilder]: Registering result SAFE for location fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION (1 of 2 remaining) [2024-09-13 06:26:09,132 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-09-13 06:26:09,152 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-09-13 06:26:09,332 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-09-13 06:26:09,336 INFO L408 BasicCegarLoop]: Path program histogram: [9, 1, 1, 1, 1, 1] [2024-09-13 06:26:09,338 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-13 06:26:09,345 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.09 06:26:09 BoogieIcfgContainer [2024-09-13 06:26:09,345 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-13 06:26:09,345 INFO L158 Benchmark]: Toolchain (without parser) took 65929.89ms. Allocated memory was 127.9MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 56.0MB in the beginning and 857.3MB in the end (delta: -801.3MB). Peak memory consumption was 627.1MB. Max. memory is 16.1GB. [2024-09-13 06:26:09,346 INFO L158 Benchmark]: Witness Parser took 0.27ms. Allocated memory is still 127.9MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 06:26:09,346 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 127.9MB. Free memory is still 101.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 06:26:09,346 INFO L158 Benchmark]: CACSL2BoogieTranslator took 299.43ms. Allocated memory is still 127.9MB. Free memory was 55.9MB in the beginning and 99.5MB in the end (delta: -43.6MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2024-09-13 06:26:09,346 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.65ms. Allocated memory is still 127.9MB. Free memory was 99.5MB in the beginning and 98.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 06:26:09,346 INFO L158 Benchmark]: Boogie Preprocessor took 28.81ms. Allocated memory is still 127.9MB. Free memory was 98.1MB in the beginning and 96.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-13 06:26:09,346 INFO L158 Benchmark]: RCFGBuilder took 274.53ms. Allocated memory is still 127.9MB. Free memory was 96.8MB in the beginning and 85.6MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-13 06:26:09,347 INFO L158 Benchmark]: TraceAbstraction took 65293.55ms. Allocated memory was 127.9MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 84.9MB in the beginning and 857.3MB in the end (delta: -772.5MB). Peak memory consumption was 654.2MB. Max. memory is 16.1GB. [2024-09-13 06:26:09,348 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.27ms. Allocated memory is still 127.9MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.09ms. Allocated memory is still 127.9MB. Free memory is still 101.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 299.43ms. Allocated memory is still 127.9MB. Free memory was 55.9MB in the beginning and 99.5MB in the end (delta: -43.6MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.65ms. Allocated memory is still 127.9MB. Free memory was 99.5MB in the beginning and 98.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.81ms. Allocated memory is still 127.9MB. Free memory was 98.1MB in the beginning and 96.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 274.53ms. Allocated memory is still 127.9MB. Free memory was 96.8MB in the beginning and 85.6MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 65293.55ms. Allocated memory was 127.9MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 84.9MB in the beginning and 857.3MB in the end (delta: -772.5MB). Peak memory consumption was 654.2MB. Max. memory is 16.1GB. * 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: 16]: procedure postcondition always holds For all program executions holds that procedure postcondition always holds at this location - PositiveResult [Line: 33]: 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 2 procedures, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 65.2s, OverallIterations: 14, TraceHistogramMax: 135, PathProgramHistogramMax: 9, EmptinessCheckTime: 0.1s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1021 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 963 mSDsluCounter, 1988 SdHoareTripleChecker+Invalid, 2.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1704 mSDsCounter, 834 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5311 IncrementalHoareTripleChecker+Invalid, 6145 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 834 mSolverCounterUnsat, 284 mSDtfsCounter, 5311 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9420 GetRequests, 8957 SyntacticMatches, 59 SemanticMatches, 404 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6754 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=591occurred in iteration=12, InterpolantAutomatonStates: 280, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 405 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 55.9s InterpolantComputationTime, 7831 NumberOfCodeBlocks, 6810 NumberOfCodeBlocksAsserted, 139 NumberOfCheckSat, 11692 ConstructedInterpolants, 0 QuantifiedInterpolants, 18241 SizeOfPredicates, 48 NumberOfNonLiveVariables, 6527 ConjunctsInSsa, 569 ConjunctsInUnsatCore, 34 InterpolantComputations, 4 PerfectInterpolantSequences, 403380/477158 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-09-13 06:26:09,385 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