./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive/Fibonacci03.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/Fibonacci03.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/Fibonacci03.c ../results/automizer-verification-files/SV-COMP24_unreach-call/Fibonacci03.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 06:25:02,201 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-13 06:25:02,268 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-13 06:25:02,275 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-13 06:25:02,276 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-13 06:25:02,309 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-13 06:25:02,309 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-13 06:25:02,310 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-13 06:25:02,310 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-13 06:25:02,311 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-13 06:25:02,311 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-13 06:25:02,311 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-13 06:25:02,312 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-13 06:25:02,313 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-13 06:25:02,313 INFO L153 SettingsManager]: * Use SBE=true [2024-09-13 06:25:02,313 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-13 06:25:02,315 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-13 06:25:02,317 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-13 06:25:02,317 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-13 06:25:02,317 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-13 06:25:02,318 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-13 06:25:02,318 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-13 06:25:02,318 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-13 06:25:02,319 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-13 06:25:02,319 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-13 06:25:02,319 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-13 06:25:02,319 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-13 06:25:02,320 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-13 06:25:02,322 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-13 06:25:02,322 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-13 06:25:02,322 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-13 06:25:02,322 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-13 06:25:02,323 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 06:25:02,323 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-13 06:25:02,323 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-13 06:25:02,324 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-13 06:25:02,325 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-13 06:25:02,325 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-13 06:25:02,325 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-13 06:25:02,325 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-13 06:25:02,326 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-13 06:25:02,326 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-13 06:25:02,326 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-13 06:25:02,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-13 06:25:02,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-13 06:25:02,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-13 06:25:02,635 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-13 06:25:02,636 INFO L274 PluginConnector]: CDTParser initialized [2024-09-13 06:25:02,637 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/recursive/Fibonacci03.c [2024-09-13 06:25:04,028 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-13 06:25:04,230 INFO L384 CDTParser]: Found 1 translation units. [2024-09-13 06:25:04,231 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive/Fibonacci03.c [2024-09-13 06:25:04,237 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/f2d29c102/18f1e204aac643db994c336bff71ed47/FLAG70149000a [2024-09-13 06:25:04,252 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/f2d29c102/18f1e204aac643db994c336bff71ed47 [2024-09-13 06:25:04,255 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-13 06:25:04,256 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-13 06:25:04,257 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../results/automizer-verification-files/SV-COMP24_unreach-call/Fibonacci03.yml/witness-2.1.yml [2024-09-13 06:25:04,311 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-13 06:25:04,313 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-13 06:25:04,315 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-13 06:25:04,315 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-13 06:25:04,320 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-13 06:25:04,321 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 06:25:04" (1/2) ... [2024-09-13 06:25:04,322 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2daf7cbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 06:25:04, skipping insertion in model container [2024-09-13 06:25:04,322 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 06:25:04" (1/2) ... [2024-09-13 06:25:04,323 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@e24f4cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 06:25:04, skipping insertion in model container [2024-09-13 06:25:04,323 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 06:25:04" (2/2) ... [2024-09-13 06:25:04,324 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2daf7cbb and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 06:25:04, skipping insertion in model container [2024-09-13 06:25:04,324 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 06:25:04" (2/2) ... [2024-09-13 06:25:04,332 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-13 06:25:04,335 INFO L1541 ArrayList]: Function contract at [L16]: requires null, ensures ((((((((((((8 <= \result) && (6 == \old(n))) || (\old(n) < 1)) || ((2 == \old(n)) && (1 <= \result))) || ((4 == \old(n)) && (3 <= \result))) || ((3 == \old(n)) && (2 <= \result))) || ((5 == \old(n)) && (5 <= \result))) || ((7 == \old(n)) && (13 <= \result))) || ((1 <= \result) && (1 == \old(n)))) || (33 < \result)) || ((21 <= \result) && (8 == \old(n)))) && (0 <= \result)) [2024-09-13 06:25:04,353 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-13 06:25:04,519 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/Fibonacci03.c[788,801] [2024-09-13 06:25:04,523 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 06:25:04,533 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global [2024-09-13 06:25:04,568 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/Fibonacci03.c[788,801] [2024-09-13 06:25:04,568 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 06:25:04,582 INFO L204 MainTranslator]: Completed translation [2024-09-13 06:25:04,583 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 06:25:04 WrapperNode [2024-09-13 06:25:04,583 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-13 06:25:04,584 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-13 06:25:04,584 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-13 06:25:04,584 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-13 06:25:04,591 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 06:25:04" (1/1) ... [2024-09-13 06:25:04,599 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 06:25:04" (1/1) ... [2024-09-13 06:25:04,614 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2024-09-13 06:25:04,614 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-13 06:25:04,615 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-13 06:25:04,615 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-13 06:25:04,615 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-13 06:25:04,625 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 06:25:04" (1/1) ... [2024-09-13 06:25:04,625 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 06:25:04" (1/1) ... [2024-09-13 06:25:04,626 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 06:25:04" (1/1) ... [2024-09-13 06:25:04,633 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 06:25:04,633 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 06:25:04" (1/1) ... [2024-09-13 06:25:04,633 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 06:25:04" (1/1) ... [2024-09-13 06:25:04,636 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 06:25:04" (1/1) ... [2024-09-13 06:25:04,638 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 06:25:04" (1/1) ... [2024-09-13 06:25:04,638 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 06:25:04" (1/1) ... [2024-09-13 06:25:04,639 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 06:25:04" (1/1) ... [2024-09-13 06:25:04,640 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-13 06:25:04,641 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-13 06:25:04,641 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-13 06:25:04,641 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-13 06:25:04,642 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 06:25:04" (1/1) ... [2024-09-13 06:25:04,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 06:25:04,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 06:25:04,676 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 06:25:04,678 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 06:25:04,726 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2024-09-13 06:25:04,728 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2024-09-13 06:25:04,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-13 06:25:04,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-13 06:25:04,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-13 06:25:04,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-13 06:25:04,793 INFO L242 CfgBuilder]: Building ICFG [2024-09-13 06:25:04,795 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-13 06:25:05,069 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-09-13 06:25:05,070 INFO L291 CfgBuilder]: Performing block encoding [2024-09-13 06:25:05,095 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-13 06:25:05,096 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-13 06:25:05,097 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 06:25:05 BoogieIcfgContainer [2024-09-13 06:25:05,097 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-13 06:25:05,100 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-13 06:25:05,100 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-13 06:25:05,104 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-13 06:25:05,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.09 06:25:04" (1/4) ... [2024-09-13 06:25:05,105 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aaac916 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.09 06:25:05, skipping insertion in model container [2024-09-13 06:25:05,105 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 06:25:04" (2/4) ... [2024-09-13 06:25:05,105 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aaac916 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 13.09 06:25:05, skipping insertion in model container [2024-09-13 06:25:05,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 06:25:04" (3/4) ... [2024-09-13 06:25:05,105 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aaac916 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 13.09 06:25:05, skipping insertion in model container [2024-09-13 06:25:05,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 06:25:05" (4/4) ... [2024-09-13 06:25:05,107 INFO L112 eAbstractionObserver]: Analyzing ICFG Fibonacci03.c [2024-09-13 06:25:05,124 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-13 06:25:05,124 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-09-13 06:25:05,170 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-13 06:25:05,177 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;@7cddced, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-13 06:25:05,178 INFO L337 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-09-13 06:25:05,182 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 12 states have (on average 1.5) internal successors, (18), 14 states have internal predecessors, (18), 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 06:25:05,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-09-13 06:25:05,195 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 06:25:05,196 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-09-13 06:25:05,196 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION === [fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 06:25:05,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 06:25:05,207 INFO L85 PathProgramCache]: Analyzing trace with hash 2111437232, now seen corresponding path program 1 times [2024-09-13 06:25:05,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 06:25:05,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232165283] [2024-09-13 06:25:05,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 06:25:05,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 06:25:05,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:05,479 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 06:25:05,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 06:25:05,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232165283] [2024-09-13 06:25:05,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232165283] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-13 06:25:05,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-13 06:25:05,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-13 06:25:05,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468010640] [2024-09-13 06:25:05,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 06:25:05,487 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-13 06:25:05,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 06:25:05,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-13 06:25:05,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-13 06:25:05,519 INFO L87 Difference]: Start difference. First operand has 19 states, 12 states have (on average 1.5) internal successors, (18), 14 states have internal predecessors, (18), 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 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 06:25:05,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 06:25:05,611 INFO L93 Difference]: Finished difference Result 24 states and 32 transitions. [2024-09-13 06:25:05,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-13 06:25:05,614 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 06:25:05,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 06:25:05,621 INFO L225 Difference]: With dead ends: 24 [2024-09-13 06:25:05,622 INFO L226 Difference]: Without dead ends: 22 [2024-09-13 06:25:05,624 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 06:25:05,628 INFO L434 NwaCegarLoop]: 13 mSDtfsCounter, 7 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-13 06:25:05,629 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 26 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-13 06:25:05,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-09-13 06:25:05,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2024-09-13 06:25:05,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 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 06:25:05,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2024-09-13 06:25:05,661 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 6 [2024-09-13 06:25:05,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 06:25:05,662 INFO L474 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2024-09-13 06:25:05,662 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 06:25:05,662 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2024-09-13 06:25:05,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-09-13 06:25:05,663 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 06:25:05,663 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-09-13 06:25:05,663 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-13 06:25:05,664 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION === [fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 06:25:05,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 06:25:05,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1030045510, now seen corresponding path program 1 times [2024-09-13 06:25:05,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 06:25:05,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429073432] [2024-09-13 06:25:05,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 06:25:05,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 06:25:05,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:05,808 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 06:25:05,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 06:25:05,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429073432] [2024-09-13 06:25:05,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429073432] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-13 06:25:05,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-13 06:25:05,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-13 06:25:05,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721523047] [2024-09-13 06:25:05,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 06:25:05,811 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-13 06:25:05,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 06:25:05,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-13 06:25:05,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-13 06:25:05,815 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 06:25:05,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 06:25:05,879 INFO L93 Difference]: Finished difference Result 20 states and 25 transitions. [2024-09-13 06:25:05,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-13 06:25:05,880 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 7 [2024-09-13 06:25:05,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 06:25:05,880 INFO L225 Difference]: With dead ends: 20 [2024-09-13 06:25:05,880 INFO L226 Difference]: Without dead ends: 20 [2024-09-13 06:25:05,881 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-13 06:25:05,882 INFO L434 NwaCegarLoop]: 10 mSDtfsCounter, 6 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-13 06:25:05,882 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 15 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-13 06:25:05,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2024-09-13 06:25:05,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2024-09-13 06:25:05,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 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 06:25:05,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2024-09-13 06:25:05,887 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 7 [2024-09-13 06:25:05,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 06:25:05,888 INFO L474 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2024-09-13 06:25:05,888 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 06:25:05,888 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2024-09-13 06:25:05,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-09-13 06:25:05,889 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 06:25:05,889 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 06:25:05,889 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-13 06:25:05,890 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 06:25:05,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 06:25:05,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1477801184, now seen corresponding path program 1 times [2024-09-13 06:25:05,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 06:25:05,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068300113] [2024-09-13 06:25:05,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 06:25:05,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 06:25:05,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:06,070 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 06:25:06,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:06,204 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 06:25:06,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 06:25:06,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068300113] [2024-09-13 06:25:06,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068300113] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-13 06:25:06,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-13 06:25:06,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-13 06:25:06,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199565436] [2024-09-13 06:25:06,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 06:25:06,207 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-13 06:25:06,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 06:25:06,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-13 06:25:06,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-13 06:25:06,212 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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 06:25:06,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 06:25:06,272 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2024-09-13 06:25:06,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-13 06:25:06,272 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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 10 [2024-09-13 06:25:06,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 06:25:06,273 INFO L225 Difference]: With dead ends: 22 [2024-09-13 06:25:06,273 INFO L226 Difference]: Without dead ends: 20 [2024-09-13 06:25:06,274 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 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 06:25:06,275 INFO L434 NwaCegarLoop]: 15 mSDtfsCounter, 1 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-13 06:25:06,275 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 50 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-13 06:25:06,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2024-09-13 06:25:06,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2024-09-13 06:25:06,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-13 06:25:06,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2024-09-13 06:25:06,284 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 10 [2024-09-13 06:25:06,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 06:25:06,284 INFO L474 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2024-09-13 06:25:06,285 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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 06:25:06,286 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2024-09-13 06:25:06,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-09-13 06:25:06,287 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 06:25:06,287 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 06:25:06,288 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-13 06:25:06,288 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 06:25:06,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 06:25:06,289 INFO L85 PathProgramCache]: Analyzing trace with hash 2123175350, now seen corresponding path program 1 times [2024-09-13 06:25:06,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 06:25:06,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083404338] [2024-09-13 06:25:06,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 06:25:06,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 06:25:06,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:06,348 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 06:25:06,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:06,379 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 06:25:06,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 06:25:06,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083404338] [2024-09-13 06:25:06,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083404338] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-13 06:25:06,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-13 06:25:06,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-13 06:25:06,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793452883] [2024-09-13 06:25:06,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 06:25:06,381 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-13 06:25:06,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 06:25:06,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-13 06:25:06,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-13 06:25:06,382 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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 06:25:06,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 06:25:06,445 INFO L93 Difference]: Finished difference Result 23 states and 28 transitions. [2024-09-13 06:25:06,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-13 06:25:06,446 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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 11 [2024-09-13 06:25:06,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 06:25:06,447 INFO L225 Difference]: With dead ends: 23 [2024-09-13 06:25:06,447 INFO L226 Difference]: Without dead ends: 21 [2024-09-13 06:25:06,447 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-13 06:25:06,449 INFO L434 NwaCegarLoop]: 10 mSDtfsCounter, 5 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-13 06:25:06,451 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 26 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-13 06:25:06,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-09-13 06:25:06,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2024-09-13 06:25:06,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 12 states have (on average 1.25) internal successors, (15), 14 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-13 06:25:06,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2024-09-13 06:25:06,460 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 11 [2024-09-13 06:25:06,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 06:25:06,461 INFO L474 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2024-09-13 06:25:06,461 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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 06:25:06,461 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2024-09-13 06:25:06,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-09-13 06:25:06,463 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 06:25:06,463 INFO L216 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 06:25:06,464 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-13 06:25:06,465 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION === [fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 06:25:06,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 06:25:06,465 INFO L85 PathProgramCache]: Analyzing trace with hash -521929935, now seen corresponding path program 1 times [2024-09-13 06:25:06,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 06:25:06,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589431228] [2024-09-13 06:25:06,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 06:25:06,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 06:25:06,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:06,619 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:06,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:06,680 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-13 06:25:06,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:06,687 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-13 06:25:06,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 06:25:06,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589431228] [2024-09-13 06:25:06,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589431228] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 06:25:06,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1630481616] [2024-09-13 06:25:06,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 06:25:06,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 06:25:06,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 06:25:06,692 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 06:25:06,693 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 06:25:06,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:06,744 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-13 06:25:06,750 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 06:25:06,825 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-09-13 06:25:06,826 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-13 06:25:06,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1630481616] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-13 06:25:06,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-13 06:25:06,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 6 [2024-09-13 06:25:06,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760011398] [2024-09-13 06:25:06,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 06:25:06,829 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-13 06:25:06,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 06:25:06,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-13 06:25:06,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-09-13 06:25:06,830 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand has 6 states, 4 states have (on average 3.75) internal successors, (15), 6 states have internal predecessors, (15), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-13 06:25:06,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 06:25:06,880 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2024-09-13 06:25:06,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-13 06:25:06,881 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 3.75) internal successors, (15), 6 states have internal predecessors, (15), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2024-09-13 06:25:06,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 06:25:06,882 INFO L225 Difference]: With dead ends: 21 [2024-09-13 06:25:06,882 INFO L226 Difference]: Without dead ends: 21 [2024-09-13 06:25:06,883 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-09-13 06:25:06,884 INFO L434 NwaCegarLoop]: 18 mSDtfsCounter, 5 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-13 06:25:06,884 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 60 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-13 06:25:06,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-09-13 06:25:06,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-09-13 06:25:06,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 16 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-13 06:25:06,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2024-09-13 06:25:06,889 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 23 [2024-09-13 06:25:06,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 06:25:06,889 INFO L474 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2024-09-13 06:25:06,890 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 3.75) internal successors, (15), 6 states have internal predecessors, (15), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-13 06:25:06,890 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2024-09-13 06:25:06,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-09-13 06:25:06,892 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 06:25:06,892 INFO L216 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 06:25:06,905 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 06:25:07,092 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 06:25:07,093 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION === [fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 06:25:07,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 06:25:07,094 INFO L85 PathProgramCache]: Analyzing trace with hash -98894885, now seen corresponding path program 1 times [2024-09-13 06:25:07,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 06:25:07,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744972493] [2024-09-13 06:25:07,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 06:25:07,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 06:25:07,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:07,359 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:07,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:07,415 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-13 06:25:07,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:07,448 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-09-13 06:25:07,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 06:25:07,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744972493] [2024-09-13 06:25:07,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744972493] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 06:25:07,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [344452085] [2024-09-13 06:25:07,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 06:25:07,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 06:25:07,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 06:25:07,451 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 06:25:07,453 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 06:25:07,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:07,494 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-13 06:25:07,497 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 06:25:07,611 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-13 06:25:07,611 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 06:25:10,168 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-09-13 06:25:10,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [344452085] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 06:25:10,169 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 06:25:10,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 9] total 22 [2024-09-13 06:25:10,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684654832] [2024-09-13 06:25:10,169 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 06:25:10,170 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-09-13 06:25:10,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 06:25:10,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-09-13 06:25:10,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=406, Unknown=0, NotChecked=0, Total=506 [2024-09-13 06:25:10,173 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 23 states, 21 states have (on average 1.6666666666666667) internal successors, (35), 20 states have internal predecessors, (35), 7 states have call successors, (8), 1 states have call predecessors, (8), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-13 06:25:10,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 06:25:10,490 INFO L93 Difference]: Finished difference Result 27 states and 34 transitions. [2024-09-13 06:25:10,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-13 06:25:10,492 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 1.6666666666666667) internal successors, (35), 20 states have internal predecessors, (35), 7 states have call successors, (8), 1 states have call predecessors, (8), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 24 [2024-09-13 06:25:10,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 06:25:10,493 INFO L225 Difference]: With dead ends: 27 [2024-09-13 06:25:10,493 INFO L226 Difference]: Without dead ends: 27 [2024-09-13 06:25:10,493 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=186, Invalid=684, Unknown=0, NotChecked=0, Total=870 [2024-09-13 06:25:10,494 INFO L434 NwaCegarLoop]: 8 mSDtfsCounter, 34 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-13 06:25:10,494 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 34 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-13 06:25:10,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-09-13 06:25:10,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2024-09-13 06:25:10,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 16 states have (on average 1.1875) internal successors, (19), 18 states have internal predecessors, (19), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-13 06:25:10,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2024-09-13 06:25:10,499 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 24 [2024-09-13 06:25:10,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 06:25:10,499 INFO L474 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2024-09-13 06:25:10,500 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 1.6666666666666667) internal successors, (35), 20 states have internal predecessors, (35), 7 states have call successors, (8), 1 states have call predecessors, (8), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-13 06:25:10,500 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2024-09-13 06:25:10,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-09-13 06:25:10,501 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 06:25:10,501 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 06:25:10,518 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 06:25:10,705 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 06:25:10,706 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 06:25:10,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 06:25:10,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1827260011, now seen corresponding path program 1 times [2024-09-13 06:25:10,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 06:25:10,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746815953] [2024-09-13 06:25:10,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 06:25:10,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 06:25:10,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:10,741 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 06:25:10,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:10,784 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:10,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:10,802 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:10,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:10,810 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-13 06:25:10,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 06:25:10,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746815953] [2024-09-13 06:25:10,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746815953] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 06:25:10,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327203908] [2024-09-13 06:25:10,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 06:25:10,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 06:25:10,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 06:25:10,813 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 06:25:10,815 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 06:25:10,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:10,854 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-13 06:25:10,855 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 06:25:10,888 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-13 06:25:10,888 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 06:25:11,029 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-13 06:25:11,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327203908] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 06:25:11,030 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 06:25:11,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 12 [2024-09-13 06:25:11,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676164568] [2024-09-13 06:25:11,031 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 06:25:11,032 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-13 06:25:11,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 06:25:11,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-13 06:25:11,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-09-13 06:25:11,033 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 7 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (8), 5 states have call predecessors, (8), 7 states have call successors, (8) [2024-09-13 06:25:11,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 06:25:11,185 INFO L93 Difference]: Finished difference Result 54 states and 77 transitions. [2024-09-13 06:25:11,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-13 06:25:11,186 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 7 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (8), 5 states have call predecessors, (8), 7 states have call successors, (8) Word has length 24 [2024-09-13 06:25:11,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 06:25:11,187 INFO L225 Difference]: With dead ends: 54 [2024-09-13 06:25:11,187 INFO L226 Difference]: Without dead ends: 50 [2024-09-13 06:25:11,188 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2024-09-13 06:25:11,188 INFO L434 NwaCegarLoop]: 14 mSDtfsCounter, 45 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-13 06:25:11,188 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 45 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-13 06:25:11,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-09-13 06:25:11,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2024-09-13 06:25:11,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 33 states have internal predecessors, (40), 9 states have call successors, (9), 3 states have call predecessors, (9), 6 states have return successors, (24), 11 states have call predecessors, (24), 9 states have call successors, (24) [2024-09-13 06:25:11,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 73 transitions. [2024-09-13 06:25:11,198 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 73 transitions. Word has length 24 [2024-09-13 06:25:11,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 06:25:11,198 INFO L474 AbstractCegarLoop]: Abstraction has 48 states and 73 transitions. [2024-09-13 06:25:11,199 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 7 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (8), 5 states have call predecessors, (8), 7 states have call successors, (8) [2024-09-13 06:25:11,199 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 73 transitions. [2024-09-13 06:25:11,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-09-13 06:25:11,200 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 06:25:11,201 INFO L216 NwaCegarLoop]: trace histogram [6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-09-13 06:25:11,217 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-13 06:25:11,401 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 06:25:11,402 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION === [fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 06:25:11,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 06:25:11,406 INFO L85 PathProgramCache]: Analyzing trace with hash 459466438, now seen corresponding path program 2 times [2024-09-13 06:25:11,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 06:25:11,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653420376] [2024-09-13 06:25:11,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 06:25:11,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 06:25:11,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:11,518 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:11,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:11,575 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:11,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:11,581 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:11,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:11,587 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-09-13 06:25:11,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:11,643 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-09-13 06:25:11,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 06:25:11,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653420376] [2024-09-13 06:25:11,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653420376] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 06:25:11,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857954628] [2024-09-13 06:25:11,644 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-13 06:25:11,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 06:25:11,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 06:25:11,646 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 06:25:11,647 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 06:25:11,694 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-13 06:25:11,695 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-13 06:25:11,696 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-13 06:25:11,697 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 06:25:11,740 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 21 proven. 13 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-13 06:25:11,740 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 06:25:11,995 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 21 proven. 14 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-09-13 06:25:11,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [857954628] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 06:25:11,995 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 06:25:11,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 9] total 14 [2024-09-13 06:25:11,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239537274] [2024-09-13 06:25:11,996 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 06:25:11,996 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-13 06:25:11,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 06:25:11,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-13 06:25:11,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-09-13 06:25:12,000 INFO L87 Difference]: Start difference. First operand 48 states and 73 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 6 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 6 states have call successors, (7) [2024-09-13 06:25:12,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 06:25:12,138 INFO L93 Difference]: Finished difference Result 53 states and 75 transitions. [2024-09-13 06:25:12,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-13 06:25:12,139 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 6 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 6 states have call successors, (7) Word has length 37 [2024-09-13 06:25:12,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 06:25:12,140 INFO L225 Difference]: With dead ends: 53 [2024-09-13 06:25:12,141 INFO L226 Difference]: Without dead ends: 53 [2024-09-13 06:25:12,142 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 73 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2024-09-13 06:25:12,143 INFO L434 NwaCegarLoop]: 13 mSDtfsCounter, 9 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-13 06:25:12,143 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 50 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-13 06:25:12,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-09-13 06:25:12,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 52. [2024-09-13 06:25:12,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 35 states have internal predecessors, (43), 9 states have call successors, (9), 5 states have call predecessors, (9), 6 states have return successors, (21), 11 states have call predecessors, (21), 9 states have call successors, (21) [2024-09-13 06:25:12,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 73 transitions. [2024-09-13 06:25:12,156 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 73 transitions. Word has length 37 [2024-09-13 06:25:12,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 06:25:12,156 INFO L474 AbstractCegarLoop]: Abstraction has 52 states and 73 transitions. [2024-09-13 06:25:12,156 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 6 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 6 states have call successors, (7) [2024-09-13 06:25:12,156 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 73 transitions. [2024-09-13 06:25:12,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-09-13 06:25:12,159 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 06:25:12,159 INFO L216 NwaCegarLoop]: trace histogram [6, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-09-13 06:25:12,176 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-09-13 06:25:12,360 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 06:25:12,360 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION === [fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 06:25:12,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 06:25:12,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1380897048, now seen corresponding path program 3 times [2024-09-13 06:25:12,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 06:25:12,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49581915] [2024-09-13 06:25:12,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 06:25:12,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 06:25:12,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:12,615 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:12,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:12,742 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:12,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:12,793 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:12,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:12,812 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-09-13 06:25:12,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:12,834 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 19 proven. 23 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-09-13 06:25:12,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 06:25:12,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49581915] [2024-09-13 06:25:12,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49581915] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 06:25:12,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1896628002] [2024-09-13 06:25:12,835 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-13 06:25:12,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 06:25:12,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 06:25:12,837 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 06:25:12,838 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 06:25:12,891 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-09-13 06:25:12,891 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-13 06:25:12,892 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-13 06:25:12,894 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 06:25:12,999 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 25 proven. 9 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-13 06:25:12,999 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 06:25:15,414 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 19 proven. 16 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-09-13 06:25:15,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1896628002] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 06:25:15,415 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 06:25:15,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 12] total 25 [2024-09-13 06:25:15,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572686618] [2024-09-13 06:25:15,415 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 06:25:15,416 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-09-13 06:25:15,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 06:25:15,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-09-13 06:25:15,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2024-09-13 06:25:15,421 INFO L87 Difference]: Start difference. First operand 52 states and 73 transitions. Second operand has 26 states, 25 states have (on average 1.6) internal successors, (40), 20 states have internal predecessors, (40), 9 states have call successors, (10), 1 states have call predecessors, (10), 5 states have return successors, (11), 11 states have call predecessors, (11), 9 states have call successors, (11) [2024-09-13 06:25:15,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 06:25:15,857 INFO L93 Difference]: Finished difference Result 67 states and 97 transitions. [2024-09-13 06:25:15,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-13 06:25:15,858 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 1.6) internal successors, (40), 20 states have internal predecessors, (40), 9 states have call successors, (10), 1 states have call predecessors, (10), 5 states have return successors, (11), 11 states have call predecessors, (11), 9 states have call successors, (11) Word has length 38 [2024-09-13 06:25:15,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 06:25:15,859 INFO L225 Difference]: With dead ends: 67 [2024-09-13 06:25:15,859 INFO L226 Difference]: Without dead ends: 67 [2024-09-13 06:25:15,860 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 67 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 426 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=308, Invalid=1174, Unknown=0, NotChecked=0, Total=1482 [2024-09-13 06:25:15,860 INFO L434 NwaCegarLoop]: 9 mSDtfsCounter, 44 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-13 06:25:15,861 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 61 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-13 06:25:15,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-09-13 06:25:15,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 63. [2024-09-13 06:25:15,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 41 states have (on average 1.1951219512195121) internal successors, (49), 42 states have internal predecessors, (49), 11 states have call successors, (11), 5 states have call predecessors, (11), 9 states have return successors, (33), 15 states have call predecessors, (33), 11 states have call successors, (33) [2024-09-13 06:25:15,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 93 transitions. [2024-09-13 06:25:15,870 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 93 transitions. Word has length 38 [2024-09-13 06:25:15,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 06:25:15,870 INFO L474 AbstractCegarLoop]: Abstraction has 63 states and 93 transitions. [2024-09-13 06:25:15,871 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 1.6) internal successors, (40), 20 states have internal predecessors, (40), 9 states have call successors, (10), 1 states have call predecessors, (10), 5 states have return successors, (11), 11 states have call predecessors, (11), 9 states have call successors, (11) [2024-09-13 06:25:15,871 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 93 transitions. [2024-09-13 06:25:15,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-09-13 06:25:15,873 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 06:25:15,873 INFO L216 NwaCegarLoop]: trace histogram [11, 10, 9, 5, 5, 5, 5, 5, 5, 5, 4, 2, 1, 1, 1, 1] [2024-09-13 06:25:15,891 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 06:25:16,074 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 06:25:16,074 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION === [fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 06:25:16,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 06:25:16,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1495733249, now seen corresponding path program 4 times [2024-09-13 06:25:16,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 06:25:16,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872065225] [2024-09-13 06:25:16,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 06:25:16,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 06:25:16,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,244 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-13 06:25:16,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,302 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:16,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,343 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:16,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,359 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:16,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,366 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:16,367 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 40 [2024-09-13 06:25:16,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,422 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:16,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,478 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:16,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,485 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:16,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,490 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:16,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:16,496 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 70 proven. 101 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2024-09-13 06:25:16,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 06:25:16,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872065225] [2024-09-13 06:25:16,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872065225] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 06:25:16,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318996290] [2024-09-13 06:25:16,497 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-13 06:25:16,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 06:25:16,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 06:25:16,499 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 06:25:16,500 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 06:25:16,551 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-13 06:25:16,551 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-13 06:25:16,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-13 06:25:16,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 06:25:16,638 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 72 proven. 122 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-13 06:25:16,638 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 06:25:17,097 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 72 proven. 134 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-09-13 06:25:17,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318996290] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 06:25:17,098 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 06:25:17,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 15] total 23 [2024-09-13 06:25:17,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220460370] [2024-09-13 06:25:17,098 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 06:25:17,099 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-09-13 06:25:17,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 06:25:17,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-09-13 06:25:17,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2024-09-13 06:25:17,101 INFO L87 Difference]: Start difference. First operand 63 states and 93 transitions. Second operand has 23 states, 23 states have (on average 2.652173913043478) internal successors, (61), 23 states have internal predecessors, (61), 17 states have call successors, (19), 1 states have call predecessors, (19), 7 states have return successors, (22), 10 states have call predecessors, (22), 17 states have call successors, (22) [2024-09-13 06:25:17,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 06:25:17,286 INFO L93 Difference]: Finished difference Result 52 states and 65 transitions. [2024-09-13 06:25:17,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-13 06:25:17,286 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.652173913043478) internal successors, (61), 23 states have internal predecessors, (61), 17 states have call successors, (19), 1 states have call predecessors, (19), 7 states have return successors, (22), 10 states have call predecessors, (22), 17 states have call successors, (22) Word has length 75 [2024-09-13 06:25:17,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 06:25:17,288 INFO L225 Difference]: With dead ends: 52 [2024-09-13 06:25:17,288 INFO L226 Difference]: Without dead ends: 51 [2024-09-13 06:25:17,289 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 156 SyntacticMatches, 7 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=274, Invalid=656, Unknown=0, NotChecked=0, Total=930 [2024-09-13 06:25:17,289 INFO L434 NwaCegarLoop]: 14 mSDtfsCounter, 58 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-13 06:25:17,290 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 69 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-13 06:25:17,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-09-13 06:25:17,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 47. [2024-09-13 06:25:17,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 32 states have (on average 1.15625) internal successors, (37), 32 states have internal predecessors, (37), 7 states have call successors, (7), 5 states have call predecessors, (7), 6 states have return successors, (16), 9 states have call predecessors, (16), 7 states have call successors, (16) [2024-09-13 06:25:17,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 60 transitions. [2024-09-13 06:25:17,302 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 60 transitions. Word has length 75 [2024-09-13 06:25:17,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 06:25:17,303 INFO L474 AbstractCegarLoop]: Abstraction has 47 states and 60 transitions. [2024-09-13 06:25:17,303 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.652173913043478) internal successors, (61), 23 states have internal predecessors, (61), 17 states have call successors, (19), 1 states have call predecessors, (19), 7 states have return successors, (22), 10 states have call predecessors, (22), 17 states have call successors, (22) [2024-09-13 06:25:17,303 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 60 transitions. [2024-09-13 06:25:17,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-09-13 06:25:17,304 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 06:25:17,304 INFO L216 NwaCegarLoop]: trace histogram [9, 8, 7, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1] [2024-09-13 06:25:17,320 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-13 06:25:17,505 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 06:25:17,505 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION === [fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 06:25:17,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 06:25:17,506 INFO L85 PathProgramCache]: Analyzing trace with hash 2015880350, now seen corresponding path program 5 times [2024-09-13 06:25:17,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 06:25:17,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637543585] [2024-09-13 06:25:17,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 06:25:17,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 06:25:17,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:17,822 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-13 06:25:17,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:17,977 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:17,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:18,097 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:18,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:18,125 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:18,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:18,143 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:18,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:18,165 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-13 06:25:18,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:18,216 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:18,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:18,223 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:18,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:18,230 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 30 proven. 90 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-09-13 06:25:18,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 06:25:18,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637543585] [2024-09-13 06:25:18,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637543585] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 06:25:18,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [236170994] [2024-09-13 06:25:18,230 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-13 06:25:18,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 06:25:18,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 06:25:18,232 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 06:25:18,233 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 06:25:18,296 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2024-09-13 06:25:18,296 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-13 06:25:18,298 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-09-13 06:25:18,306 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 06:25:18,557 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 21 proven. 105 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-09-13 06:25:18,557 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 06:25:20,491 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 10 proven. 120 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-09-13 06:25:20,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [236170994] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 06:25:20,492 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 06:25:20,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 20, 22] total 45 [2024-09-13 06:25:20,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867471564] [2024-09-13 06:25:20,492 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 06:25:20,493 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-09-13 06:25:20,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 06:25:20,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-09-13 06:25:20,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=1770, Unknown=0, NotChecked=0, Total=2070 [2024-09-13 06:25:20,495 INFO L87 Difference]: Start difference. First operand 47 states and 60 transitions. Second operand has 46 states, 44 states have (on average 1.5909090909090908) internal successors, (70), 35 states have internal predecessors, (70), 17 states have call successors, (18), 1 states have call predecessors, (18), 10 states have return successors, (21), 20 states have call predecessors, (21), 17 states have call successors, (21) [2024-09-13 06:25:21,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 06:25:21,259 INFO L93 Difference]: Finished difference Result 55 states and 68 transitions. [2024-09-13 06:25:21,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-09-13 06:25:21,260 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 44 states have (on average 1.5909090909090908) internal successors, (70), 35 states have internal predecessors, (70), 17 states have call successors, (18), 1 states have call predecessors, (18), 10 states have return successors, (21), 20 states have call predecessors, (21), 17 states have call successors, (21) Word has length 61 [2024-09-13 06:25:21,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 06:25:21,261 INFO L225 Difference]: With dead ends: 55 [2024-09-13 06:25:21,265 INFO L226 Difference]: Without dead ends: 55 [2024-09-13 06:25:21,266 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 106 SyntacticMatches, 7 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1450 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=664, Invalid=3368, Unknown=0, NotChecked=0, Total=4032 [2024-09-13 06:25:21,267 INFO L434 NwaCegarLoop]: 10 mSDtfsCounter, 25 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-13 06:25:21,267 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 84 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-13 06:25:21,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-09-13 06:25:21,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 49. [2024-09-13 06:25:21,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 34 states have (on average 1.1470588235294117) internal successors, (39), 33 states have internal predecessors, (39), 7 states have call successors, (7), 5 states have call predecessors, (7), 6 states have return successors, (15), 10 states have call predecessors, (15), 7 states have call successors, (15) [2024-09-13 06:25:21,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 61 transitions. [2024-09-13 06:25:21,272 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 61 transitions. Word has length 61 [2024-09-13 06:25:21,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 06:25:21,273 INFO L474 AbstractCegarLoop]: Abstraction has 49 states and 61 transitions. [2024-09-13 06:25:21,273 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 44 states have (on average 1.5909090909090908) internal successors, (70), 35 states have internal predecessors, (70), 17 states have call successors, (18), 1 states have call predecessors, (18), 10 states have return successors, (21), 20 states have call predecessors, (21), 17 states have call successors, (21) [2024-09-13 06:25:21,273 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 61 transitions. [2024-09-13 06:25:21,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-09-13 06:25:21,277 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 06:25:21,277 INFO L216 NwaCegarLoop]: trace histogram [15, 14, 12, 7, 7, 7, 7, 7, 7, 7, 5, 3, 1, 1, 1, 1] [2024-09-13 06:25:21,297 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 06:25:21,478 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 06:25:21,478 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION === [fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 06:25:21,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 06:25:21,479 INFO L85 PathProgramCache]: Analyzing trace with hash -70296165, now seen corresponding path program 6 times [2024-09-13 06:25:21,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 06:25:21,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883903104] [2024-09-13 06:25:21,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 06:25:21,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 06:25:21,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:22,118 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-13 06:25:22,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:22,365 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:22,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:22,581 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:22,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:22,709 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:22,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:22,742 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:22,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:22,762 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:22,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:22,781 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:22,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:22,832 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:22,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:22,838 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:22,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:22,847 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-09-13 06:25:22,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:22,921 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:22,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:22,942 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:22,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:22,948 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:22,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:22,955 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:22,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:22,962 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 91 proven. 238 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2024-09-13 06:25:22,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 06:25:22,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883903104] [2024-09-13 06:25:22,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883903104] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 06:25:22,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1491293374] [2024-09-13 06:25:22,963 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-13 06:25:22,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 06:25:22,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 06:25:22,965 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 06:25:22,966 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 06:25:23,063 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2024-09-13 06:25:23,063 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-13 06:25:23,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-09-13 06:25:23,072 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 06:25:23,465 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 63 proven. 263 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2024-09-13 06:25:23,465 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 06:25:26,989 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 53 proven. 296 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2024-09-13 06:25:26,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1491293374] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 06:25:26,989 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 06:25:26,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 25, 29] total 59 [2024-09-13 06:25:26,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992989357] [2024-09-13 06:25:26,990 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 06:25:26,991 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2024-09-13 06:25:26,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 06:25:26,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2024-09-13 06:25:26,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=433, Invalid=3107, Unknown=0, NotChecked=0, Total=3540 [2024-09-13 06:25:26,993 INFO L87 Difference]: Start difference. First operand 49 states and 61 transitions. Second operand has 60 states, 56 states have (on average 1.5) internal successors, (84), 44 states have internal predecessors, (84), 20 states have call successors, (21), 1 states have call predecessors, (21), 14 states have return successors, (29), 28 states have call predecessors, (29), 20 states have call successors, (29) [2024-09-13 06:25:27,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 06:25:27,935 INFO L93 Difference]: Finished difference Result 61 states and 80 transitions. [2024-09-13 06:25:27,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-09-13 06:25:27,935 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 56 states have (on average 1.5) internal successors, (84), 44 states have internal predecessors, (84), 20 states have call successors, (21), 1 states have call predecessors, (21), 14 states have return successors, (29), 28 states have call predecessors, (29), 20 states have call successors, (29) Word has length 102 [2024-09-13 06:25:27,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 06:25:27,936 INFO L225 Difference]: With dead ends: 61 [2024-09-13 06:25:27,937 INFO L226 Difference]: Without dead ends: 61 [2024-09-13 06:25:27,938 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 189 SyntacticMatches, 16 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2760 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=925, Invalid=5237, Unknown=0, NotChecked=0, Total=6162 [2024-09-13 06:25:27,939 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 32 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 1106 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-13 06:25:27,939 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 127 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1106 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-13 06:25:27,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-09-13 06:25:27,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 55. [2024-09-13 06:25:27,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 37 states have (on average 1.135135135135135) internal successors, (42), 37 states have internal predecessors, (42), 8 states have call successors, (8), 5 states have call predecessors, (8), 8 states have return successors, (23), 12 states have call predecessors, (23), 8 states have call successors, (23) [2024-09-13 06:25:27,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 73 transitions. [2024-09-13 06:25:27,951 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 73 transitions. Word has length 102 [2024-09-13 06:25:27,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 06:25:27,952 INFO L474 AbstractCegarLoop]: Abstraction has 55 states and 73 transitions. [2024-09-13 06:25:27,952 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 56 states have (on average 1.5) internal successors, (84), 44 states have internal predecessors, (84), 20 states have call successors, (21), 1 states have call predecessors, (21), 14 states have return successors, (29), 28 states have call predecessors, (29), 20 states have call successors, (29) [2024-09-13 06:25:27,952 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 73 transitions. [2024-09-13 06:25:27,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-09-13 06:25:27,954 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 06:25:27,954 INFO L216 NwaCegarLoop]: trace histogram [15, 15, 12, 7, 7, 7, 7, 7, 7, 7, 5, 3, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 06:25:27,972 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-09-13 06:25:28,159 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 06:25:28,160 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 06:25:28,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 06:25:28,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1553596021, now seen corresponding path program 2 times [2024-09-13 06:25:28,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 06:25:28,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911524610] [2024-09-13 06:25:28,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 06:25:28,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 06:25:28,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:28,278 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-13 06:25:28,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:28,408 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:28,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:28,475 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:28,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:28,521 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:28,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:28,559 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:28,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:28,575 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:28,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:28,581 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:28,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:28,587 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:28,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:28,597 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:28,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:28,599 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:28,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:28,602 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:25:28,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:28,622 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:28,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:28,629 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:28,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:28,632 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:28,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:28,635 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:28,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:28,640 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 42 proven. 229 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked. [2024-09-13 06:25:28,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 06:25:28,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911524610] [2024-09-13 06:25:28,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911524610] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 06:25:28,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012201229] [2024-09-13 06:25:28,641 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-13 06:25:28,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 06:25:28,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 06:25:28,643 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 06:25:28,644 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 06:25:28,712 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-13 06:25:28,712 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-13 06:25:28,713 INFO L262 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-13 06:25:28,715 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 06:25:29,028 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2024-09-13 06:25:29,029 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-13 06:25:29,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1012201229] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-13 06:25:29,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-13 06:25:29,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 16 [2024-09-13 06:25:29,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99300864] [2024-09-13 06:25:29,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 06:25:29,031 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-13 06:25:29,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 06:25:29,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-13 06:25:29,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-09-13 06:25:29,032 INFO L87 Difference]: Start difference. First operand 55 states and 73 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-13 06:25:29,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 06:25:29,077 INFO L93 Difference]: Finished difference Result 53 states and 71 transitions. [2024-09-13 06:25:29,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-13 06:25:29,078 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 106 [2024-09-13 06:25:29,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 06:25:29,079 INFO L225 Difference]: With dead ends: 53 [2024-09-13 06:25:29,082 INFO L226 Difference]: Without dead ends: 51 [2024-09-13 06:25:29,083 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-09-13 06:25:29,084 INFO L434 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-13 06:25:29,084 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-13 06:25:29,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-09-13 06:25:29,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 48. [2024-09-13 06:25:29,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 32 states have (on average 1.125) internal successors, (36), 32 states have internal predecessors, (36), 8 states have call successors, (8), 5 states have call predecessors, (8), 7 states have return successors, (18), 10 states have call predecessors, (18), 7 states have call successors, (18) [2024-09-13 06:25:29,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 62 transitions. [2024-09-13 06:25:29,090 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 62 transitions. Word has length 106 [2024-09-13 06:25:29,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 06:25:29,091 INFO L474 AbstractCegarLoop]: Abstraction has 48 states and 62 transitions. [2024-09-13 06:25:29,091 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-13 06:25:29,091 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 62 transitions. [2024-09-13 06:25:29,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-09-13 06:25:29,094 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 06:25:29,094 INFO L216 NwaCegarLoop]: trace histogram [25, 24, 20, 12, 12, 12, 12, 12, 12, 12, 8, 5, 1, 1, 1, 1] [2024-09-13 06:25:29,107 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-09-13 06:25:29,297 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 06:25:29,298 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION === [fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 06:25:29,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 06:25:29,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1048031360, now seen corresponding path program 7 times [2024-09-13 06:25:29,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 06:25:29,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191945062] [2024-09-13 06:25:29,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 06:25:29,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 06:25:29,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:30,583 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-13 06:25:30,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:31,075 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:31,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:31,311 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:31,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:31,463 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:31,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:31,600 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:31,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:31,628 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:31,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:31,649 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:31,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:31,673 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:31,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:31,721 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:31,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:31,727 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:31,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:31,732 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:25:31,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:31,805 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:31,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:31,823 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:31,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:31,830 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:31,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:31,836 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:31,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:31,843 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-09-13 06:25:31,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:32,030 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:32,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:32,076 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:32,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:32,101 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:32,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:32,108 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:32,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:32,117 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:32,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:32,126 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:32,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:32,156 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:32,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:32,165 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:32,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:32,174 INFO L134 CoverageAnalysis]: Checked inductivity of 1630 backedges. 259 proven. 600 refuted. 0 times theorem prover too weak. 771 trivial. 0 not checked. [2024-09-13 06:25:32,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 06:25:32,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191945062] [2024-09-13 06:25:32,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191945062] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 06:25:32,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390128010] [2024-09-13 06:25:32,175 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-13 06:25:32,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 06:25:32,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 06:25:32,177 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 06:25:32,182 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 06:25:32,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:32,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 74 conjuncts are in the unsatisfiable core [2024-09-13 06:25:32,305 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 06:25:32,755 INFO L134 CoverageAnalysis]: Checked inductivity of 1630 backedges. 244 proven. 599 refuted. 0 times theorem prover too weak. 787 trivial. 0 not checked. [2024-09-13 06:25:32,755 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 06:25:37,892 INFO L134 CoverageAnalysis]: Checked inductivity of 1630 backedges. 212 proven. 666 refuted. 0 times theorem prover too weak. 752 trivial. 0 not checked. [2024-09-13 06:25:37,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1390128010] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 06:25:37,892 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 06:25:37,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 28, 33] total 66 [2024-09-13 06:25:37,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081094352] [2024-09-13 06:25:37,893 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 06:25:37,893 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2024-09-13 06:25:37,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 06:25:37,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2024-09-13 06:25:37,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=451, Invalid=3971, Unknown=0, NotChecked=0, Total=4422 [2024-09-13 06:25:37,896 INFO L87 Difference]: Start difference. First operand 48 states and 62 transitions. Second operand has 67 states, 65 states have (on average 1.3692307692307693) internal successors, (89), 46 states have internal predecessors, (89), 25 states have call successors, (26), 1 states have call predecessors, (26), 15 states have return successors, (38), 37 states have call predecessors, (38), 25 states have call successors, (38) [2024-09-13 06:25:39,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 06:25:39,201 INFO L93 Difference]: Finished difference Result 69 states and 94 transitions. [2024-09-13 06:25:39,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-09-13 06:25:39,201 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 65 states have (on average 1.3692307692307693) internal successors, (89), 46 states have internal predecessors, (89), 25 states have call successors, (26), 1 states have call predecessors, (26), 15 states have return successors, (38), 37 states have call predecessors, (38), 25 states have call successors, (38) Word has length 170 [2024-09-13 06:25:39,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 06:25:39,202 INFO L225 Difference]: With dead ends: 69 [2024-09-13 06:25:39,202 INFO L226 Difference]: Without dead ends: 69 [2024-09-13 06:25:39,204 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 341 SyntacticMatches, 33 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4344 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1051, Invalid=7139, Unknown=0, NotChecked=0, Total=8190 [2024-09-13 06:25:39,205 INFO L434 NwaCegarLoop]: 9 mSDtfsCounter, 50 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1261 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 1324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-13 06:25:39,205 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 45 Invalid, 1324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1261 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-13 06:25:39,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-09-13 06:25:39,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 56. [2024-09-13 06:25:39,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 37 states have (on average 1.1081081081081081) internal successors, (41), 37 states have internal predecessors, (41), 9 states have call successors, (9), 5 states have call predecessors, (9), 9 states have return successors, (25), 13 states have call predecessors, (25), 8 states have call successors, (25) [2024-09-13 06:25:39,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 75 transitions. [2024-09-13 06:25:39,211 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 75 transitions. Word has length 170 [2024-09-13 06:25:39,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 06:25:39,212 INFO L474 AbstractCegarLoop]: Abstraction has 56 states and 75 transitions. [2024-09-13 06:25:39,212 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 65 states have (on average 1.3692307692307693) internal successors, (89), 46 states have internal predecessors, (89), 25 states have call successors, (26), 1 states have call predecessors, (26), 15 states have return successors, (38), 37 states have call predecessors, (38), 25 states have call successors, (38) [2024-09-13 06:25:39,212 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 75 transitions. [2024-09-13 06:25:39,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2024-09-13 06:25:39,214 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 06:25:39,214 INFO L216 NwaCegarLoop]: trace histogram [35, 34, 28, 17, 17, 17, 17, 17, 17, 17, 11, 7, 1, 1, 1, 1] [2024-09-13 06:25:39,232 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-09-13 06:25:39,415 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 06:25:39,415 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION === [fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 06:25:39,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 06:25:39,416 INFO L85 PathProgramCache]: Analyzing trace with hash -197334683, now seen corresponding path program 8 times [2024-09-13 06:25:39,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 06:25:39,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224197289] [2024-09-13 06:25:39,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 06:25:39,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 06:25:39,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:39,834 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-13 06:25:39,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:40,013 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:40,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:40,111 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:40,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:40,163 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:40,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:40,177 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:40,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:40,182 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:40,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:40,184 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:40,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:40,186 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:40,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:40,188 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:40,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:40,233 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:40,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:40,237 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:40,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:40,242 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:25:40,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:40,257 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:40,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:40,263 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:40,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:40,269 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:40,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:40,272 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:40,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:40,275 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-13 06:25:40,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:40,297 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:40,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:40,306 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:40,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:40,313 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:40,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:40,315 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:40,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:40,317 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:40,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:40,318 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:40,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:40,338 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:40,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:40,344 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:40,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:40,349 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-09-13 06:25:40,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:40,412 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:40,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:40,456 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:40,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:40,490 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:40,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:40,506 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:40,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:40,510 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:40,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:40,514 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:40,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:40,523 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:40,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:40,525 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:40,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:40,528 INFO L134 CoverageAnalysis]: Checked inductivity of 3268 backedges. 701 proven. 564 refuted. 0 times theorem prover too weak. 2003 trivial. 0 not checked. [2024-09-13 06:25:40,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 06:25:40,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224197289] [2024-09-13 06:25:40,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224197289] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 06:25:40,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31945339] [2024-09-13 06:25:40,529 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-13 06:25:40,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 06:25:40,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 06:25:40,531 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-13 06:25:40,532 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-13 06:25:40,687 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-13 06:25:40,687 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-13 06:25:40,690 INFO L262 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-09-13 06:25:40,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 06:25:40,818 INFO L134 CoverageAnalysis]: Checked inductivity of 3268 backedges. 630 proven. 868 refuted. 0 times theorem prover too weak. 1770 trivial. 0 not checked. [2024-09-13 06:25:40,819 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 06:25:42,215 INFO L134 CoverageAnalysis]: Checked inductivity of 3268 backedges. 630 proven. 918 refuted. 0 times theorem prover too weak. 1720 trivial. 0 not checked. [2024-09-13 06:25:42,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [31945339] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 06:25:42,216 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 06:25:42,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 15, 23] total 33 [2024-09-13 06:25:42,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66220661] [2024-09-13 06:25:42,216 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 06:25:42,217 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-09-13 06:25:42,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 06:25:42,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-09-13 06:25:42,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=261, Invalid=795, Unknown=0, NotChecked=0, Total=1056 [2024-09-13 06:25:42,218 INFO L87 Difference]: Start difference. First operand 56 states and 75 transitions. Second operand has 33 states, 33 states have (on average 2.727272727272727) internal successors, (90), 33 states have internal predecessors, (90), 27 states have call successors, (31), 1 states have call predecessors, (31), 11 states have return successors, (42), 18 states have call predecessors, (42), 27 states have call successors, (42) [2024-09-13 06:25:42,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 06:25:42,530 INFO L93 Difference]: Finished difference Result 76 states and 112 transitions. [2024-09-13 06:25:42,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-09-13 06:25:42,531 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 2.727272727272727) internal successors, (90), 33 states have internal predecessors, (90), 27 states have call successors, (31), 1 states have call predecessors, (31), 11 states have return successors, (42), 18 states have call predecessors, (42), 27 states have call successors, (42) Word has length 238 [2024-09-13 06:25:42,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 06:25:42,533 INFO L225 Difference]: With dead ends: 76 [2024-09-13 06:25:42,533 INFO L226 Difference]: Without dead ends: 76 [2024-09-13 06:25:42,534 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 571 GetRequests, 519 SyntacticMatches, 11 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 730 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=483, Invalid=1323, Unknown=0, NotChecked=0, Total=1806 [2024-09-13 06:25:42,534 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 58 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-13 06:25:42,535 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 93 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-13 06:25:42,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-09-13 06:25:42,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 73. [2024-09-13 06:25:42,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 50 states have (on average 1.06) internal successors, (53), 49 states have internal predecessors, (53), 13 states have call successors, (13), 9 states have call predecessors, (13), 9 states have return successors, (39), 14 states have call predecessors, (39), 12 states have call successors, (39) [2024-09-13 06:25:42,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 105 transitions. [2024-09-13 06:25:42,542 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 105 transitions. Word has length 238 [2024-09-13 06:25:42,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 06:25:42,542 INFO L474 AbstractCegarLoop]: Abstraction has 73 states and 105 transitions. [2024-09-13 06:25:42,543 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 2.727272727272727) internal successors, (90), 33 states have internal predecessors, (90), 27 states have call successors, (31), 1 states have call predecessors, (31), 11 states have return successors, (42), 18 states have call predecessors, (42), 27 states have call successors, (42) [2024-09-13 06:25:42,543 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 105 transitions. [2024-09-13 06:25:42,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2024-09-13 06:25:42,552 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 06:25:42,552 INFO L216 NwaCegarLoop]: trace histogram [93, 89, 75, 46, 46, 46, 46, 46, 43, 43, 29, 18, 1, 1, 1, 1] [2024-09-13 06:25:42,572 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-09-13 06:25:42,753 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-13 06:25:42,753 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION === [fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 06:25:42,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 06:25:42,753 INFO L85 PathProgramCache]: Analyzing trace with hash -85069230, now seen corresponding path program 9 times [2024-09-13 06:25:42,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 06:25:42,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360487513] [2024-09-13 06:25:42,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 06:25:42,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 06:25:42,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,378 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-13 06:25:43,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,444 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,481 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,484 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 3 [2024-09-13 06:25:43,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,523 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:43,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,527 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:43,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,530 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:43,532 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 06:25:43,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,540 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:43,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,541 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-09-13 06:25:43,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,570 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,581 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,587 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,589 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 06:25:43,593 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:43,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,595 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:43,595 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 37 [2024-09-13 06:25:43,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,601 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,604 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:43,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,606 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:25:43,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,612 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,647 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 06:25:43,652 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:43,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,654 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:43,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,655 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-09-13 06:25:43,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,691 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,708 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,711 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 3 [2024-09-13 06:25:43,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,724 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,728 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,730 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:43,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,732 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:43,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,733 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:43,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,737 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,738 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:43,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,740 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:25:43,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,745 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,750 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,753 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:43,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,755 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:43,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,756 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-13 06:25:43,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,766 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,773 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,778 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,781 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:43,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,783 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:43,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,784 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:43,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,789 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,791 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:43,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,793 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2024-09-13 06:25:43,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,836 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,857 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,870 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 06:25:43,885 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,893 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,895 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 06:25:43,898 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:43,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,900 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:43,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,905 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,908 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:43,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,910 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:25:43,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,916 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,921 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 06:25:43,924 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:43,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,925 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:43,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,927 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-13 06:25:43,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,941 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,949 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,955 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:43,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,957 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:43,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,960 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:43,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,962 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:43,963 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 06:25:43,970 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:43,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,973 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2024-09-13 06:25:43,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:43,998 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:44,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:44,011 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:44,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:44,019 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:44,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:44,025 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:44,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:44,029 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:44,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:44,031 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:44,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:44,033 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:44,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:44,038 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:44,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:44,041 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:44,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:44,044 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:25:44,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:44,052 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:44,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:44,059 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:44,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:44,062 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:44,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:44,064 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:44,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:44,071 INFO L134 CoverageAnalysis]: Checked inductivity of 23260 backedges. 574 proven. 2587 refuted. 0 times theorem prover too weak. 20099 trivial. 0 not checked. [2024-09-13 06:25:44,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 06:25:44,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360487513] [2024-09-13 06:25:44,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360487513] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 06:25:44,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465499356] [2024-09-13 06:25:44,073 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-13 06:25:44,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 06:25:44,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 06:25:44,075 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-13 06:25:44,077 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-13 06:25:44,364 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 42 check-sat command(s) [2024-09-13 06:25:44,364 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-13 06:25:44,368 INFO L262 TraceCheckSpWp]: Trace formula consists of 752 conjuncts, 98 conjuncts are in the unsatisfiable core [2024-09-13 06:25:44,378 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 06:25:44,940 INFO L134 CoverageAnalysis]: Checked inductivity of 23260 backedges. 7001 proven. 739 refuted. 0 times theorem prover too weak. 15520 trivial. 0 not checked. [2024-09-13 06:25:44,940 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 06:25:53,826 INFO L134 CoverageAnalysis]: Checked inductivity of 23260 backedges. 6874 proven. 878 refuted. 0 times theorem prover too weak. 15508 trivial. 0 not checked. [2024-09-13 06:25:53,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465499356] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 06:25:53,826 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 06:25:53,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 28, 31] total 57 [2024-09-13 06:25:53,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022128294] [2024-09-13 06:25:53,827 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 06:25:53,828 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2024-09-13 06:25:53,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 06:25:53,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2024-09-13 06:25:53,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=389, Invalid=2803, Unknown=0, NotChecked=0, Total=3192 [2024-09-13 06:25:53,830 INFO L87 Difference]: Start difference. First operand 73 states and 105 transitions. Second operand has 57 states, 57 states have (on average 1.6140350877192982) internal successors, (92), 41 states have internal predecessors, (92), 21 states have call successors, (26), 4 states have call predecessors, (26), 14 states have return successors, (38), 36 states have call predecessors, (38), 20 states have call successors, (38) [2024-09-13 06:25:54,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 06:25:54,681 INFO L93 Difference]: Finished difference Result 84 states and 117 transitions. [2024-09-13 06:25:54,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-09-13 06:25:54,681 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 57 states have (on average 1.6140350877192982) internal successors, (92), 41 states have internal predecessors, (92), 21 states have call successors, (26), 4 states have call predecessors, (26), 14 states have return successors, (38), 36 states have call predecessors, (38), 20 states have call successors, (38) Word has length 624 [2024-09-13 06:25:54,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 06:25:54,682 INFO L225 Difference]: With dead ends: 84 [2024-09-13 06:25:54,682 INFO L226 Difference]: Without dead ends: 84 [2024-09-13 06:25:54,684 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1467 GetRequests, 1332 SyntacticMatches, 53 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4630 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1013, Invalid=5959, Unknown=0, NotChecked=0, Total=6972 [2024-09-13 06:25:54,684 INFO L434 NwaCegarLoop]: 10 mSDtfsCounter, 67 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 872 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-13 06:25:54,684 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 47 Invalid, 936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 872 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-13 06:25:54,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-09-13 06:25:54,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 74. [2024-09-13 06:25:54,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 52 states have (on average 1.0576923076923077) internal successors, (55), 50 states have internal predecessors, (55), 13 states have call successors, (13), 10 states have call predecessors, (13), 8 states have return successors, (33), 13 states have call predecessors, (33), 12 states have call successors, (33) [2024-09-13 06:25:54,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 101 transitions. [2024-09-13 06:25:54,693 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 101 transitions. Word has length 624 [2024-09-13 06:25:54,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 06:25:54,693 INFO L474 AbstractCegarLoop]: Abstraction has 74 states and 101 transitions. [2024-09-13 06:25:54,693 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 1.6140350877192982) internal successors, (92), 41 states have internal predecessors, (92), 21 states have call successors, (26), 4 states have call predecessors, (26), 14 states have return successors, (38), 36 states have call predecessors, (38), 20 states have call successors, (38) [2024-09-13 06:25:54,693 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 101 transitions. [2024-09-13 06:25:54,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2024-09-13 06:25:54,701 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 06:25:54,702 INFO L216 NwaCegarLoop]: trace histogram [78, 75, 63, 39, 39, 38, 38, 38, 37, 37, 24, 15, 1, 1, 1, 1] [2024-09-13 06:25:54,721 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-09-13 06:25:54,902 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-13 06:25:54,903 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION === [fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 06:25:54,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 06:25:54,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1844104904, now seen corresponding path program 10 times [2024-09-13 06:25:54,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 06:25:54,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958129989] [2024-09-13 06:25:54,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 06:25:54,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 06:25:54,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:55,647 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:55,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:55,827 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:55,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:55,938 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:55,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,007 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:56,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,051 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:56,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,088 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:56,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,104 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:56,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,111 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:56,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,115 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:56,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,125 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:56,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,127 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:56,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,129 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:25:56,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,144 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:56,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,149 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:56,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,152 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:56,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,155 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:56,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,158 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-13 06:25:56,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,218 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:56,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,224 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:56,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,228 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:56,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,230 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:56,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,232 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:56,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,233 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:56,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,237 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:56,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,238 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:56,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,241 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-09-13 06:25:56,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,417 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:56,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,500 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:56,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,520 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:56,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,526 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:56,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,531 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:56,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,532 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:56,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,534 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:56,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,536 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:56,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,540 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:56,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,542 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:56,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,543 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:25:56,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,591 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:56,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,633 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:56,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,638 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:56,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,642 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:56,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,646 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-13 06:25:56,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,668 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:56,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,675 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:56,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,680 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:56,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,685 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:56,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,687 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:56,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,689 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:56,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,694 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:56,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,696 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:56,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,698 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2024-09-13 06:25:56,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,737 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:56,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,761 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:56,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,770 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:56,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,776 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:56,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,780 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:56,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,782 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:56,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,783 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:56,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,785 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:56,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,789 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:56,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,792 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:56,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,794 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:25:56,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,801 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:56,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,806 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:56,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,808 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:56,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,810 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:56,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,812 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-13 06:25:56,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,824 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:56,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,832 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:56,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,837 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:56,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,840 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:56,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,842 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:25:56,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,844 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:25:56,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,849 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:25:56,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,851 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:25:56,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:25:56,854 INFO L134 CoverageAnalysis]: Checked inductivity of 16397 backedges. 1046 proven. 3160 refuted. 0 times theorem prover too weak. 12191 trivial. 0 not checked. [2024-09-13 06:25:56,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 06:25:56,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958129989] [2024-09-13 06:25:56,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958129989] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 06:25:56,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [170790039] [2024-09-13 06:25:56,855 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-13 06:25:56,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 06:25:56,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 06:25:56,857 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-13 06:25:56,859 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-13 06:25:57,138 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-13 06:25:57,138 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-13 06:25:57,141 INFO L262 TraceCheckSpWp]: Trace formula consists of 863 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-09-13 06:25:57,147 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 06:25:57,257 INFO L134 CoverageAnalysis]: Checked inductivity of 16397 backedges. 8238 proven. 1896 refuted. 0 times theorem prover too weak. 6263 trivial. 0 not checked. [2024-09-13 06:25:57,257 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 06:25:59,341 INFO L134 CoverageAnalysis]: Checked inductivity of 16397 backedges. 1053 proven. 3613 refuted. 0 times theorem prover too weak. 11731 trivial. 0 not checked. [2024-09-13 06:25:59,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [170790039] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 06:25:59,342 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 06:25:59,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 17, 26] total 37 [2024-09-13 06:25:59,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383930704] [2024-09-13 06:25:59,342 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 06:25:59,343 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-09-13 06:25:59,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 06:25:59,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-09-13 06:25:59,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=314, Invalid=1018, Unknown=0, NotChecked=0, Total=1332 [2024-09-13 06:25:59,345 INFO L87 Difference]: Start difference. First operand 74 states and 101 transitions. Second operand has 37 states, 37 states have (on average 2.972972972972973) internal successors, (110), 37 states have internal predecessors, (110), 34 states have call successors, (41), 3 states have call predecessors, (41), 13 states have return successors, (54), 22 states have call predecessors, (54), 33 states have call successors, (54) [2024-09-13 06:25:59,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 06:25:59,758 INFO L93 Difference]: Finished difference Result 103 states and 139 transitions. [2024-09-13 06:25:59,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-09-13 06:25:59,759 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 2.972972972972973) internal successors, (110), 37 states have internal predecessors, (110), 34 states have call successors, (41), 3 states have call predecessors, (41), 13 states have return successors, (54), 22 states have call predecessors, (54), 33 states have call successors, (54) Word has length 525 [2024-09-13 06:25:59,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 06:25:59,760 INFO L225 Difference]: With dead ends: 103 [2024-09-13 06:25:59,760 INFO L226 Difference]: Without dead ends: 103 [2024-09-13 06:25:59,761 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1245 GetRequests, 1172 SyntacticMatches, 14 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1312 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=945, Invalid=2715, Unknown=0, NotChecked=0, Total=3660 [2024-09-13 06:25:59,762 INFO L434 NwaCegarLoop]: 18 mSDtfsCounter, 158 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-13 06:25:59,762 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 83 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-13 06:25:59,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-09-13 06:25:59,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 84. [2024-09-13 06:25:59,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 59 states have (on average 1.0508474576271187) internal successors, (62), 57 states have internal predecessors, (62), 16 states have call successors, (16), 12 states have call predecessors, (16), 8 states have return successors, (35), 14 states have call predecessors, (35), 15 states have call successors, (35) [2024-09-13 06:25:59,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 113 transitions. [2024-09-13 06:25:59,768 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 113 transitions. Word has length 525 [2024-09-13 06:25:59,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 06:25:59,769 INFO L474 AbstractCegarLoop]: Abstraction has 84 states and 113 transitions. [2024-09-13 06:25:59,769 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 2.972972972972973) internal successors, (110), 37 states have internal predecessors, (110), 34 states have call successors, (41), 3 states have call predecessors, (41), 13 states have return successors, (54), 22 states have call predecessors, (54), 33 states have call successors, (54) [2024-09-13 06:25:59,769 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 113 transitions. [2024-09-13 06:25:59,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 752 [2024-09-13 06:25:59,775 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 06:25:59,775 INFO L216 NwaCegarLoop]: trace histogram [112, 107, 91, 57, 57, 54, 54, 54, 53, 53, 34, 21, 1, 1, 1, 1] [2024-09-13 06:25:59,792 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-09-13 06:25:59,975 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-09-13 06:25:59,976 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION === [fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 06:25:59,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 06:25:59,976 INFO L85 PathProgramCache]: Analyzing trace with hash 571879178, now seen corresponding path program 11 times [2024-09-13 06:25:59,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 06:25:59,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543770576] [2024-09-13 06:25:59,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 06:25:59,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 06:26:00,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:01,136 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-13 06:26:01,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:01,440 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:01,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:01,595 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:01,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:01,713 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:01,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:01,771 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:01,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:01,815 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:01,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:01,860 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:01,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:01,880 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:01,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:01,884 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:01,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:01,888 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:26:01,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:01,896 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:01,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:01,898 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:01,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:01,900 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:26:01,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:01,913 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:01,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:01,917 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:01,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:01,919 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:01,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:01,921 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:01,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:01,922 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-13 06:26:01,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:01,944 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:01,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:01,951 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:01,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:01,957 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:01,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:01,958 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:01,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:01,960 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:01,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:01,962 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:26:01,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:01,966 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:01,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:01,968 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:01,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:01,970 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-13 06:26:01,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,040 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,051 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,055 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,057 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,058 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:02,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,059 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:02,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,060 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:26:02,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,063 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,064 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:02,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,065 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:26:02,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,069 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,072 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,073 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:02,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,074 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:02,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,075 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2024-09-13 06:26:02,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,151 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,180 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,197 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,208 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,215 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,220 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,222 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:02,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,223 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:02,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,225 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:26:02,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,229 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,231 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:02,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,232 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:26:02,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,240 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,245 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,247 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:02,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,249 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:02,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,251 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-13 06:26:02,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,260 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,265 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,269 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,270 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:02,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,272 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:02,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,273 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:26:02,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,276 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,278 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:02,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,279 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-13 06:26:02,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,294 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,303 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,308 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,312 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,313 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:02,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,314 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:02,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,316 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:26:02,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,319 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,321 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:02,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,322 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:26:02,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,328 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,332 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,334 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:02,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,336 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:02,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,338 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 580 [2024-09-13 06:26:02,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,453 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,489 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,500 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,506 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,510 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,512 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:02,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,514 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:02,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,516 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:26:02,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,521 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,523 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:02,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,525 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:26:02,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,533 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,539 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,541 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:02,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,543 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:02,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,545 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-13 06:26:02,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,569 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,576 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,592 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,594 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:02,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,595 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:02,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,597 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:26:02,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,600 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:02,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,602 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:02,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:02,605 INFO L134 CoverageAnalysis]: Checked inductivity of 33812 backedges. 1475 proven. 4757 refuted. 0 times theorem prover too weak. 27580 trivial. 0 not checked. [2024-09-13 06:26:02,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 06:26:02,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543770576] [2024-09-13 06:26:02,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543770576] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 06:26:02,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291673405] [2024-09-13 06:26:02,605 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-13 06:26:02,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 06:26:02,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 06:26:02,607 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-13 06:26:02,609 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-13 06:26:03,201 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 85 check-sat command(s) [2024-09-13 06:26:03,201 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-13 06:26:03,210 INFO L262 TraceCheckSpWp]: Trace formula consists of 1703 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-09-13 06:26:03,219 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 06:26:03,415 INFO L134 CoverageAnalysis]: Checked inductivity of 33812 backedges. 15035 proven. 3377 refuted. 0 times theorem prover too weak. 15400 trivial. 0 not checked. [2024-09-13 06:26:03,416 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 06:26:06,455 INFO L134 CoverageAnalysis]: Checked inductivity of 33812 backedges. 3206 proven. 5599 refuted. 0 times theorem prover too weak. 25007 trivial. 0 not checked. [2024-09-13 06:26:06,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1291673405] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 06:26:06,455 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 06:26:06,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23, 37] total 53 [2024-09-13 06:26:06,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381687093] [2024-09-13 06:26:06,455 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 06:26:06,457 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2024-09-13 06:26:06,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 06:26:06,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2024-09-13 06:26:06,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=543, Invalid=2213, Unknown=0, NotChecked=0, Total=2756 [2024-09-13 06:26:06,459 INFO L87 Difference]: Start difference. First operand 84 states and 113 transitions. Second operand has 53 states, 53 states have (on average 2.7547169811320753) internal successors, (146), 50 states have internal predecessors, (146), 42 states have call successors, (51), 10 states have call predecessors, (51), 17 states have return successors, (59), 27 states have call predecessors, (59), 35 states have call successors, (59) [2024-09-13 06:26:07,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 06:26:07,787 INFO L93 Difference]: Finished difference Result 214 states and 373 transitions. [2024-09-13 06:26:07,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2024-09-13 06:26:07,788 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 2.7547169811320753) internal successors, (146), 50 states have internal predecessors, (146), 42 states have call successors, (51), 10 states have call predecessors, (51), 17 states have return successors, (59), 27 states have call predecessors, (59), 35 states have call successors, (59) Word has length 751 [2024-09-13 06:26:07,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 06:26:07,791 INFO L225 Difference]: With dead ends: 214 [2024-09-13 06:26:07,791 INFO L226 Difference]: Without dead ends: 214 [2024-09-13 06:26:07,794 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1819 GetRequests, 1682 SyntacticMatches, 14 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5492 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=3293, Invalid=12207, Unknown=0, NotChecked=0, Total=15500 [2024-09-13 06:26:07,794 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 555 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 350 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 1000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 350 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-13 06:26:07,795 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 138 Invalid, 1000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [350 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-13 06:26:07,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-09-13 06:26:07,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 202. [2024-09-13 06:26:07,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 147 states have (on average 1.0816326530612246) internal successors, (159), 141 states have internal predecessors, (159), 41 states have call successors, (41), 37 states have call predecessors, (41), 13 states have return successors, (160), 23 states have call predecessors, (160), 40 states have call successors, (160) [2024-09-13 06:26:07,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 360 transitions. [2024-09-13 06:26:07,812 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 360 transitions. Word has length 751 [2024-09-13 06:26:07,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 06:26:07,813 INFO L474 AbstractCegarLoop]: Abstraction has 202 states and 360 transitions. [2024-09-13 06:26:07,814 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 2.7547169811320753) internal successors, (146), 50 states have internal predecessors, (146), 42 states have call successors, (51), 10 states have call predecessors, (51), 17 states have return successors, (59), 27 states have call predecessors, (59), 35 states have call successors, (59) [2024-09-13 06:26:07,814 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 360 transitions. [2024-09-13 06:26:07,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-09-13 06:26:07,816 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 06:26:07,816 INFO L216 NwaCegarLoop]: trace histogram [67, 66, 54, 33, 33, 33, 33, 33, 33, 33, 21, 13, 1, 1, 1, 1] [2024-09-13 06:26:07,838 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-09-13 06:26:08,016 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-09-13 06:26:08,017 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION === [fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 06:26:08,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 06:26:08,017 INFO L85 PathProgramCache]: Analyzing trace with hash -431412613, now seen corresponding path program 12 times [2024-09-13 06:26:08,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 06:26:08,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507263668] [2024-09-13 06:26:08,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 06:26:08,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 06:26:08,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:13,082 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-13 06:26:13,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:14,390 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:14,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:14,934 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:14,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:15,211 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:15,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:15,394 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:15,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:15,508 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:15,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:15,618 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:15,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:15,643 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:15,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:15,661 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:15,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:15,680 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:26:15,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:15,726 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:15,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:15,730 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:15,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:15,734 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:26:15,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:15,787 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:15,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:15,799 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:15,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:15,802 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:15,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:15,805 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:15,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:15,809 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-13 06:26:15,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:15,904 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:15,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:15,925 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:15,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:15,937 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:15,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:15,941 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:15,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:15,944 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:15,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:15,948 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:26:15,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:15,961 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:15,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:15,965 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:15,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:15,969 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-13 06:26:15,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:16,143 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:16,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:16,199 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:16,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:16,229 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:16,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:16,246 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:16,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:16,252 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:16,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:16,257 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:16,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:16,263 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:26:16,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:16,279 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:16,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:16,284 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:16,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:16,288 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:26:16,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:16,310 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:16,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:16,322 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:16,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:16,327 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:16,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:16,331 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:16,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:16,335 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2024-09-13 06:26:16,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:16,717 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:16,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:16,862 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:16,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:16,907 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:16,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:16,927 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:16,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:16,938 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:16,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:16,942 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:16,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:16,945 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:16,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:16,949 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:26:16,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:16,961 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:16,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:16,964 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:16,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:16,967 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:26:16,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:16,989 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:16,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:17,000 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:17,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:17,004 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:17,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:17,007 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:17,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:17,011 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-13 06:26:17,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:17,061 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:17,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:17,083 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:17,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:17,095 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:17,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:17,100 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:17,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:17,104 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:17,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:17,108 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:26:17,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:17,120 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:17,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:17,125 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:17,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:17,129 INFO L134 CoverageAnalysis]: Checked inductivity of 12321 backedges. 2019 proven. 3320 refuted. 0 times theorem prover too weak. 6982 trivial. 0 not checked. [2024-09-13 06:26:17,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 06:26:17,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507263668] [2024-09-13 06:26:17,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507263668] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 06:26:17,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116598799] [2024-09-13 06:26:17,130 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-13 06:26:17,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 06:26:17,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 06:26:17,132 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-13 06:26:17,134 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-13 06:26:17,499 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 45 check-sat command(s) [2024-09-13 06:26:17,499 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-13 06:26:17,505 INFO L262 TraceCheckSpWp]: Trace formula consists of 880 conjuncts, 83 conjuncts are in the unsatisfiable core [2024-09-13 06:26:17,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 06:26:17,942 INFO L134 CoverageAnalysis]: Checked inductivity of 12321 backedges. 3080 proven. 2016 refuted. 0 times theorem prover too weak. 7225 trivial. 0 not checked. [2024-09-13 06:26:17,942 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 06:26:24,673 INFO L134 CoverageAnalysis]: Checked inductivity of 12321 backedges. 3042 proven. 2105 refuted. 0 times theorem prover too weak. 7174 trivial. 0 not checked. [2024-09-13 06:26:24,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1116598799] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 06:26:24,673 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 06:26:24,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 28, 34] total 67 [2024-09-13 06:26:24,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054984100] [2024-09-13 06:26:24,674 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 06:26:24,674 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2024-09-13 06:26:24,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 06:26:24,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2024-09-13 06:26:24,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=493, Invalid=4063, Unknown=0, NotChecked=0, Total=4556 [2024-09-13 06:26:24,676 INFO L87 Difference]: Start difference. First operand 202 states and 360 transitions. Second operand has 68 states, 65 states have (on average 1.676923076923077) internal successors, (109), 49 states have internal predecessors, (109), 27 states have call successors, (31), 1 states have call predecessors, (31), 20 states have return successors, (51), 40 states have call predecessors, (51), 27 states have call successors, (51) [2024-09-13 06:26:26,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 06:26:26,043 INFO L93 Difference]: Finished difference Result 217 states and 369 transitions. [2024-09-13 06:26:26,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-09-13 06:26:26,044 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 65 states have (on average 1.676923076923077) internal successors, (109), 49 states have internal predecessors, (109), 27 states have call successors, (31), 1 states have call predecessors, (31), 20 states have return successors, (51), 40 states have call predecessors, (51), 27 states have call successors, (51) Word has length 456 [2024-09-13 06:26:26,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 06:26:26,049 INFO L225 Difference]: With dead ends: 217 [2024-09-13 06:26:26,049 INFO L226 Difference]: Without dead ends: 217 [2024-09-13 06:26:26,052 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1210 GetRequests, 1064 SyntacticMatches, 49 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4916 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1228, Invalid=8474, Unknown=0, NotChecked=0, Total=9702 [2024-09-13 06:26:26,052 INFO L434 NwaCegarLoop]: 15 mSDtfsCounter, 119 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 1447 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 1553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 1447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-13 06:26:26,053 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 46 Invalid, 1553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 1447 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-13 06:26:26,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-09-13 06:26:26,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 204. [2024-09-13 06:26:26,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 149 states have (on average 1.0536912751677852) internal successors, (157), 142 states have internal predecessors, (157), 41 states have call successors, (41), 37 states have call predecessors, (41), 13 states have return successors, (152), 24 states have call predecessors, (152), 40 states have call successors, (152) [2024-09-13 06:26:26,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 350 transitions. [2024-09-13 06:26:26,067 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 350 transitions. Word has length 456 [2024-09-13 06:26:26,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 06:26:26,068 INFO L474 AbstractCegarLoop]: Abstraction has 204 states and 350 transitions. [2024-09-13 06:26:26,069 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 65 states have (on average 1.676923076923077) internal successors, (109), 49 states have internal predecessors, (109), 27 states have call successors, (31), 1 states have call predecessors, (31), 20 states have return successors, (51), 40 states have call predecessors, (51), 27 states have call successors, (51) [2024-09-13 06:26:26,069 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 350 transitions. [2024-09-13 06:26:26,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 743 [2024-09-13 06:26:26,073 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 06:26:26,073 INFO L216 NwaCegarLoop]: trace histogram [109, 108, 88, 54, 54, 54, 54, 54, 54, 54, 34, 21, 1, 1, 1, 1] [2024-09-13 06:26:26,095 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-09-13 06:26:26,273 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 06:26:26,274 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION === [fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 06:26:26,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 06:26:26,275 INFO L85 PathProgramCache]: Analyzing trace with hash 926892040, now seen corresponding path program 13 times [2024-09-13 06:26:26,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 06:26:26,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726034799] [2024-09-13 06:26:26,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 06:26:26,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 06:26:26,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:36,122 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-13 06:26:36,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:38,413 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:38,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:39,275 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:39,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:39,603 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:39,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:39,734 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:39,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:39,807 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:39,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:39,857 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:39,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:39,891 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:39,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:39,895 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:39,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:39,911 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:39,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:39,915 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:26:39,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:39,928 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:39,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:39,933 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:39,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:39,937 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:26:39,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:39,964 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:39,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:39,976 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:39,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:39,979 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:39,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:39,983 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:39,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:39,987 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-13 06:26:39,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:40,036 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:40,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:40,057 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:40,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:40,069 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:40,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:40,074 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:40,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:40,078 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:40,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:40,082 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:26:40,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:40,095 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:40,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:40,099 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:40,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:40,104 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-13 06:26:40,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:40,233 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:40,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:40,286 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:40,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:40,309 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:40,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:40,323 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:40,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:40,327 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:40,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:40,332 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:40,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:40,337 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:26:40,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:40,350 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:40,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:40,354 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:40,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:40,359 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:26:40,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:40,381 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:40,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:40,393 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:40,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:40,398 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:40,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:40,402 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:40,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:40,406 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-13 06:26:40,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:40,717 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:40,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:40,862 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:40,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:40,908 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:40,931 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:40,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:40,942 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:40,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:40,945 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:40,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:40,948 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:40,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:40,952 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:26:40,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:40,963 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:40,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:40,966 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:40,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:40,970 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:26:40,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:40,990 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:40,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:41,002 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:41,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:41,006 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:41,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:41,009 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:41,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:41,013 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-13 06:26:41,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:41,067 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:41,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:41,089 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:41,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:41,105 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:41,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:41,110 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:41,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:41,115 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:41,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:41,120 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:26:41,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:41,137 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:41,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:41,141 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:41,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:41,146 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2024-09-13 06:26:41,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:42,027 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:42,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:42,328 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:42,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:42,436 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:42,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:42,481 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:42,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:42,501 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:42,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:42,516 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:42,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:42,520 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:42,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:42,525 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:42,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:42,530 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:26:42,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:42,544 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:42,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:42,547 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:42,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:42,551 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:26:42,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:42,572 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:42,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:42,584 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:42,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:42,587 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:42,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:42,591 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:42,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:42,594 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-13 06:26:42,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:42,642 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:42,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:42,663 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:42,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:42,674 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:42,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:42,678 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:42,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:42,682 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:42,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:42,686 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:26:42,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:42,698 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:42,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:42,702 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:42,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:42,706 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-13 06:26:42,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:42,819 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:42,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:42,866 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:42,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:42,887 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:42,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:42,899 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:42,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:42,903 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:42,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:42,907 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:42,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:42,911 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 06:26:42,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:42,923 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:42,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:42,927 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:42,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:42,932 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 06:26:42,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:42,955 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:42,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:42,968 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 06:26:42,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:42,972 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 06:26:42,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:42,976 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 06:26:42,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:42,982 INFO L134 CoverageAnalysis]: Checked inductivity of 32988 backedges. 5849 proven. 4942 refuted. 0 times theorem prover too weak. 22197 trivial. 0 not checked. [2024-09-13 06:26:42,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 06:26:42,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726034799] [2024-09-13 06:26:42,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726034799] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 06:26:42,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [544684240] [2024-09-13 06:26:42,982 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-13 06:26:42,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 06:26:42,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 06:26:42,984 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-13 06:26:42,985 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-09-13 06:26:43,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 06:26:43,463 INFO L262 TraceCheckSpWp]: Trace formula consists of 1776 conjuncts, 218 conjuncts are in the unsatisfiable core [2024-09-13 06:26:43,472 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 06:26:43,984 INFO L134 CoverageAnalysis]: Checked inductivity of 32988 backedges. 5849 proven. 4942 refuted. 0 times theorem prover too weak. 22197 trivial. 0 not checked. [2024-09-13 06:26:43,984 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 06:27:25,740 INFO L134 CoverageAnalysis]: Checked inductivity of 32988 backedges. 5849 proven. 4942 refuted. 0 times theorem prover too weak. 22197 trivial. 0 not checked. [2024-09-13 06:27:25,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [544684240] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 06:27:25,740 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 06:27:25,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 33 [2024-09-13 06:27:25,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692495800] [2024-09-13 06:27:25,741 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 06:27:25,742 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-09-13 06:27:25,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 06:27:25,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-09-13 06:27:25,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=243, Invalid=879, Unknown=0, NotChecked=0, Total=1122 [2024-09-13 06:27:25,742 INFO L87 Difference]: Start difference. First operand 204 states and 350 transitions. Second operand has 34 states, 33 states have (on average 1.1818181818181819) internal successors, (39), 18 states have internal predecessors, (39), 8 states have call successors, (9), 1 states have call predecessors, (9), 8 states have return successors, (23), 23 states have call predecessors, (23), 8 states have call successors, (23) [2024-09-13 06:27:25,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 06:27:25,925 INFO L93 Difference]: Finished difference Result 209 states and 363 transitions. [2024-09-13 06:27:25,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-09-13 06:27:25,927 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 1.1818181818181819) internal successors, (39), 18 states have internal predecessors, (39), 8 states have call successors, (9), 1 states have call predecessors, (9), 8 states have return successors, (23), 23 states have call predecessors, (23), 8 states have call successors, (23) Word has length 742 [2024-09-13 06:27:25,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 06:27:25,928 INFO L225 Difference]: With dead ends: 209 [2024-09-13 06:27:25,928 INFO L226 Difference]: Without dead ends: 0 [2024-09-13 06:27:25,929 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1918 GetRequests, 1667 SyntacticMatches, 217 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5786 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=291, Invalid=969, Unknown=0, NotChecked=0, Total=1260 [2024-09-13 06:27:25,929 INFO L434 NwaCegarLoop]: 34 mSDtfsCounter, 1 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-13 06:27:25,929 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 233 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-13 06:27:25,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-13 06:27:25,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-13 06:27:25,930 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 06:27:25,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-13 06:27:25,930 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 742 [2024-09-13 06:27:25,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 06:27:25,930 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-13 06:27:25,931 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 1.1818181818181819) internal successors, (39), 18 states have internal predecessors, (39), 8 states have call successors, (9), 1 states have call predecessors, (9), 8 states have return successors, (23), 23 states have call predecessors, (23), 8 states have call successors, (23) [2024-09-13 06:27:25,931 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-13 06:27:25,931 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-13 06:27:25,934 INFO L785 garLoopResultBuilder]: Registering result SAFE for location fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION (1 of 2 remaining) [2024-09-13 06:27:25,934 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-09-13 06:27:25,958 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-09-13 06:27:26,134 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 06:27:26,137 INFO L408 BasicCegarLoop]: Path program histogram: [13, 2, 1, 1, 1, 1, 1] [2024-09-13 06:27:26,139 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-13 06:27:26,141 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.09 06:27:26 BoogieIcfgContainer [2024-09-13 06:27:26,141 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-13 06:27:26,142 INFO L158 Benchmark]: Toolchain (without parser) took 141829.32ms. Allocated memory was 157.3MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 123.2MB in the beginning and 788.6MB in the end (delta: -665.4MB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. [2024-09-13 06:27:26,142 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 157.3MB. Free memory was 127.2MB in the beginning and 127.2MB in the end (delta: 24.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 06:27:26,142 INFO L158 Benchmark]: Witness Parser took 0.12ms. Allocated memory is still 157.3MB. Free memory is still 124.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 06:27:26,142 INFO L158 Benchmark]: CACSL2BoogieTranslator took 268.07ms. Allocated memory is still 157.3MB. Free memory was 122.5MB in the beginning and 109.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-13 06:27:26,142 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.22ms. Allocated memory is still 157.3MB. Free memory was 109.9MB in the beginning and 108.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 06:27:26,142 INFO L158 Benchmark]: Boogie Preprocessor took 25.66ms. Allocated memory is still 157.3MB. Free memory was 108.6MB in the beginning and 107.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-13 06:27:26,143 INFO L158 Benchmark]: RCFGBuilder took 456.28ms. Allocated memory is still 157.3MB. Free memory was 107.1MB in the beginning and 122.5MB in the end (delta: -15.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-13 06:27:26,143 INFO L158 Benchmark]: TraceAbstraction took 141041.85ms. Allocated memory was 157.3MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 121.5MB in the beginning and 788.6MB in the end (delta: -667.1MB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. [2024-09-13 06:27:26,144 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 157.3MB. Free memory was 127.2MB in the beginning and 127.2MB in the end (delta: 24.1kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.12ms. Allocated memory is still 157.3MB. Free memory is still 124.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 268.07ms. Allocated memory is still 157.3MB. Free memory was 122.5MB in the beginning and 109.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.22ms. Allocated memory is still 157.3MB. Free memory was 109.9MB in the beginning and 108.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.66ms. Allocated memory is still 157.3MB. Free memory was 108.6MB in the beginning and 107.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 456.28ms. Allocated memory is still 157.3MB. Free memory was 107.1MB in the beginning and 122.5MB in the end (delta: -15.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 141041.85ms. Allocated memory was 157.3MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 121.5MB in the beginning and 788.6MB in the end (delta: -667.1MB). Peak memory consumption was 1.0GB. 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: 36]: 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, 19 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 141.0s, OverallIterations: 20, TraceHistogramMax: 112, PathProgramHistogramMax: 13, EmptinessCheckTime: 0.1s, AutomataDifference: 9.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1351 SdHoareTripleChecker+Valid, 4.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1279 mSDsluCounter, 1373 SdHoareTripleChecker+Invalid, 3.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1077 mSDsCounter, 1047 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8260 IncrementalHoareTripleChecker+Invalid, 9307 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1047 mSolverCounterUnsat, 296 mSDtfsCounter, 8260 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9870 GetRequests, 8624 SyntacticMatches, 432 SemanticMatches, 814 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32525 ImplicationChecksByTransitivity, 16.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=204occurred in iteration=19, InterpolantAutomatonStates: 440, 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, 20 MinimizatonAttempts, 106 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 124.4s InterpolantComputationTime, 8026 NumberOfCodeBlocks, 7317 NumberOfCodeBlocksAsserted, 231 NumberOfCheckSat, 11843 ConstructedInterpolants, 0 QuantifiedInterpolants, 27159 SizeOfPredicates, 73 NumberOfNonLiveVariables, 8013 ConjunctsInSsa, 713 ConjunctsInUnsatCore, 50 InterpolantComputations, 6 PerfectInterpolantSequences, 320822/375732 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 06:27:26,177 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