./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive-simple/fibo_7-1.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --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/AutomizerReach.xml -i ../sv-benchmarks/c/recursive-simple/fibo_7-1.c -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 17c70baee0bc6a4a26b6403fb6f46125ad9d7f8a7127109634f2327c61aaf5cb --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-5189fb6-m [2024-09-13 03:26:55,880 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-13 03:26:55,957 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-13 03:26:55,962 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-13 03:26:55,963 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-13 03:26:55,985 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-13 03:26:55,986 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-13 03:26:55,986 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-13 03:26:55,987 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-13 03:26:55,988 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-13 03:26:55,989 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-13 03:26:55,989 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-13 03:26:55,989 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-13 03:26:55,991 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-13 03:26:55,991 INFO L153 SettingsManager]: * Use SBE=true [2024-09-13 03:26:55,991 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-13 03:26:55,991 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-13 03:26:55,991 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-13 03:26:55,992 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-13 03:26:55,992 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-13 03:26:55,992 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-13 03:26:55,992 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-13 03:26:55,992 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-13 03:26:55,994 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-13 03:26:55,994 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-13 03:26:55,995 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-13 03:26:55,995 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-13 03:26:55,995 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-13 03:26:55,995 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-13 03:26:55,995 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-13 03:26:55,995 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-13 03:26:55,995 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-13 03:26:55,996 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 03:26:55,996 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-13 03:26:55,996 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-13 03:26:55,996 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-13 03:26:55,996 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-13 03:26:55,996 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-13 03:26:55,996 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-13 03:26:55,996 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-13 03:26:55,997 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-13 03:26:55,997 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-13 03:26:55,997 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/automizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 17c70baee0bc6a4a26b6403fb6f46125ad9d7f8a7127109634f2327c61aaf5cb Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 [2024-09-13 03:26:56,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-13 03:26:56,224 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-13 03:26:56,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-13 03:26:56,226 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-13 03:26:56,227 INFO L274 PluginConnector]: CDTParser initialized [2024-09-13 03:26:56,228 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/recursive-simple/fibo_7-1.c [2024-09-13 03:26:57,456 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-13 03:26:57,609 INFO L384 CDTParser]: Found 1 translation units. [2024-09-13 03:26:57,610 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-simple/fibo_7-1.c [2024-09-13 03:26:57,616 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/5941d09af/a022da94ff244c7786b64ca5039a8cc7/FLAG8e2ce683a [2024-09-13 03:26:57,627 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/5941d09af/a022da94ff244c7786b64ca5039a8cc7 [2024-09-13 03:26:57,629 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-13 03:26:57,630 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-13 03:26:57,631 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-13 03:26:57,631 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-13 03:26:57,636 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-13 03:26:57,636 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 03:26:57" (1/1) ... [2024-09-13 03:26:57,637 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5395e1d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 03:26:57, skipping insertion in model container [2024-09-13 03:26:57,637 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 03:26:57" (1/1) ... [2024-09-13 03:26:57,656 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-13 03:26:57,760 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-simple/fibo_7-1.c[741,754] [2024-09-13 03:26:57,763 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 03:26:57,771 INFO L200 MainTranslator]: Completed pre-run [2024-09-13 03:26:57,783 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-simple/fibo_7-1.c[741,754] [2024-09-13 03:26:57,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 03:26:57,798 INFO L204 MainTranslator]: Completed translation [2024-09-13 03:26:57,798 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 03:26:57 WrapperNode [2024-09-13 03:26:57,798 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-13 03:26:57,800 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-13 03:26:57,800 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-13 03:26:57,800 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-13 03:26:57,806 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 03:26:57" (1/1) ... [2024-09-13 03:26:57,811 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 03:26:57" (1/1) ... [2024-09-13 03:26:57,816 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-13 03:26:57,816 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-13 03:26:57,817 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-13 03:26:57,817 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-13 03:26:57,817 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-13 03:26:57,825 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 03:26:57" (1/1) ... [2024-09-13 03:26:57,825 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 03:26:57" (1/1) ... [2024-09-13 03:26:57,827 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 03:26:57" (1/1) ... [2024-09-13 03:26:57,836 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-13 03:26:57,837 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 03:26:57" (1/1) ... [2024-09-13 03:26:57,837 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 03:26:57" (1/1) ... [2024-09-13 03:26:57,838 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 03:26:57" (1/1) ... [2024-09-13 03:26:57,839 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 03:26:57" (1/1) ... [2024-09-13 03:26:57,840 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 03:26:57" (1/1) ... [2024-09-13 03:26:57,840 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 03:26:57" (1/1) ... [2024-09-13 03:26:57,841 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-13 03:26:57,842 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-13 03:26:57,842 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-13 03:26:57,842 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-13 03:26:57,842 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 03:26:57" (1/1) ... [2024-09-13 03:26:57,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 03:26:57,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 03:26:57,870 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 03:26:57,872 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 03:26:57,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-13 03:26:57,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-13 03:26:57,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-13 03:26:57,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-13 03:26:57,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-13 03:26:57,909 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-13 03:26:57,909 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-13 03:26:57,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-13 03:26:57,909 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2024-09-13 03:26:57,909 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2024-09-13 03:26:57,963 INFO L242 CfgBuilder]: Building ICFG [2024-09-13 03:26:57,964 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-13 03:26:58,070 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-09-13 03:26:58,070 INFO L291 CfgBuilder]: Performing block encoding [2024-09-13 03:26:58,091 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-13 03:26:58,091 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-13 03:26:58,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 03:26:58 BoogieIcfgContainer [2024-09-13 03:26:58,092 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-13 03:26:58,093 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-13 03:26:58,093 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-13 03:26:58,096 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-13 03:26:58,096 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.09 03:26:57" (1/3) ... [2024-09-13 03:26:58,097 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c68ae7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.09 03:26:58, skipping insertion in model container [2024-09-13 03:26:58,097 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 03:26:57" (2/3) ... [2024-09-13 03:26:58,097 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c68ae7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.09 03:26:58, skipping insertion in model container [2024-09-13 03:26:58,097 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 03:26:58" (3/3) ... [2024-09-13 03:26:58,098 INFO L112 eAbstractionObserver]: Analyzing ICFG fibo_7-1.c [2024-09-13 03:26:58,110 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-13 03:26:58,111 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-09-13 03:26:58,156 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-13 03:26:58,161 INFO L336 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3aa15c09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-13 03:26:58,161 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-13 03:26:58,165 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 14 states have internal predecessors, (17), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-13 03:26:58,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-09-13 03:26:58,170 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 03:26:58,170 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 03:26:58,171 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 03:26:58,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:26:58,175 INFO L85 PathProgramCache]: Analyzing trace with hash 358193300, now seen corresponding path program 1 times [2024-09-13 03:26:58,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 03:26:58,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308266271] [2024-09-13 03:26:58,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 03:26:58,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 03:26:58,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:26:58,338 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-13 03:26:58,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:26:58,353 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-13 03:26:58,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:26:58,428 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 03:26:58,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 03:26:58,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308266271] [2024-09-13 03:26:58,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308266271] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-13 03:26:58,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-13 03:26:58,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-13 03:26:58,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313922097] [2024-09-13 03:26:58,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 03:26:58,435 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-13 03:26:58,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 03:26:58,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-13 03:26:58,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-13 03:26:58,459 INFO L87 Difference]: Start difference. First operand has 23 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 14 states have internal predecessors, (17), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-13 03:26:58,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 03:26:58,527 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions. [2024-09-13 03:26:58,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-13 03:26:58,529 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 13 [2024-09-13 03:26:58,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 03:26:58,535 INFO L225 Difference]: With dead ends: 35 [2024-09-13 03:26:58,535 INFO L226 Difference]: Without dead ends: 23 [2024-09-13 03:26:58,537 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-13 03:26:58,540 INFO L434 NwaCegarLoop]: 19 mSDtfsCounter, 10 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-13 03:26:58,541 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 57 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-13 03:26:58,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-09-13 03:26:58,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2024-09-13 03:26:58,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-13 03:26:58,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2024-09-13 03:26:58,577 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 13 [2024-09-13 03:26:58,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 03:26:58,577 INFO L474 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2024-09-13 03:26:58,577 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-13 03:26:58,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:26:58,578 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2024-09-13 03:26:58,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-09-13 03:26:58,579 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 03:26:58,579 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 03:26:58,579 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-13 03:26:58,580 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 03:26:58,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:26:58,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1069801351, now seen corresponding path program 1 times [2024-09-13 03:26:58,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 03:26:58,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425752933] [2024-09-13 03:26:58,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 03:26:58,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 03:26:58,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:26:58,650 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-13 03:26:58,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:26:58,654 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-13 03:26:58,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:26:58,680 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 03:26:58,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 03:26:58,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425752933] [2024-09-13 03:26:58,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425752933] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-13 03:26:58,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-13 03:26:58,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-13 03:26:58,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966311837] [2024-09-13 03:26:58,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 03:26:58,682 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-13 03:26:58,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 03:26:58,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-13 03:26:58,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-13 03:26:58,683 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-13 03:26:58,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 03:26:58,735 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2024-09-13 03:26:58,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-13 03:26:58,736 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2024-09-13 03:26:58,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 03:26:58,737 INFO L225 Difference]: With dead ends: 27 [2024-09-13 03:26:58,737 INFO L226 Difference]: Without dead ends: 23 [2024-09-13 03:26:58,737 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-13 03:26:58,738 INFO L434 NwaCegarLoop]: 15 mSDtfsCounter, 7 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-13 03:26:58,739 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 42 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-13 03:26:58,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-09-13 03:26:58,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2024-09-13 03:26:58,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-13 03:26:58,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2024-09-13 03:26:58,750 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 14 [2024-09-13 03:26:58,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 03:26:58,750 INFO L474 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2024-09-13 03:26:58,751 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-13 03:26:58,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:26:58,751 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2024-09-13 03:26:58,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-09-13 03:26:58,752 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 03:26:58,752 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 03:26:58,752 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-13 03:26:58,754 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 03:26:58,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:26:58,755 INFO L85 PathProgramCache]: Analyzing trace with hash -648535868, now seen corresponding path program 1 times [2024-09-13 03:26:58,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 03:26:58,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459168933] [2024-09-13 03:26:58,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 03:26:58,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 03:26:58,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:26:58,808 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-13 03:26:58,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:26:58,811 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-13 03:26:58,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:26:58,881 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:26:58,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:26:58,904 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-09-13 03:26:58,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:26:58,911 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-13 03:26:58,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 03:26:58,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459168933] [2024-09-13 03:26:58,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459168933] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 03:26:58,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1271320410] [2024-09-13 03:26:58,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 03:26:58,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 03:26:58,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 03:26:58,915 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 03:26:58,917 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 03:26:58,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:26:58,964 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-13 03:26:58,970 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 03:26:59,025 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-13 03:26:59,026 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 03:26:59,215 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-13 03:26:59,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1271320410] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 03:26:59,216 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 03:26:59,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 12 [2024-09-13 03:26:59,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231004048] [2024-09-13 03:26:59,216 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 03:26:59,216 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-13 03:26:59,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 03:26:59,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-13 03:26:59,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-09-13 03:26:59,217 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 12 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 12 states have internal predecessors, (30), 8 states have call successors, (10), 1 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 8 states have call successors, (9) [2024-09-13 03:26:59,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 03:26:59,280 INFO L93 Difference]: Finished difference Result 38 states and 49 transitions. [2024-09-13 03:26:59,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-13 03:26:59,280 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 12 states have internal predecessors, (30), 8 states have call successors, (10), 1 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 8 states have call successors, (9) Word has length 26 [2024-09-13 03:26:59,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 03:26:59,281 INFO L225 Difference]: With dead ends: 38 [2024-09-13 03:26:59,281 INFO L226 Difference]: Without dead ends: 23 [2024-09-13 03:26:59,282 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 55 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2024-09-13 03:26:59,283 INFO L434 NwaCegarLoop]: 15 mSDtfsCounter, 23 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-13 03:26:59,283 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 45 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-13 03:26:59,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-09-13 03:26:59,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-09-13 03:26:59,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 15 states have internal predecessors, (15), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-13 03:26:59,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2024-09-13 03:26:59,289 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 26 [2024-09-13 03:26:59,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 03:26:59,289 INFO L474 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2024-09-13 03:26:59,290 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 12 states have internal predecessors, (30), 8 states have call successors, (10), 1 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 8 states have call successors, (9) [2024-09-13 03:26:59,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:26:59,291 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2024-09-13 03:26:59,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-09-13 03:26:59,292 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 03:26:59,292 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 03:26:59,305 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-09-13 03:26:59,492 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 03:26:59,493 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 03:26:59,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:26:59,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1169471199, now seen corresponding path program 1 times [2024-09-13 03:26:59,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 03:26:59,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585890565] [2024-09-13 03:26:59,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 03:26:59,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 03:26:59,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:26:59,525 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-13 03:26:59,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:26:59,528 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-13 03:26:59,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:26:59,603 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:26:59,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:26:59,624 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 03:26:59,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:26:59,632 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 03:26:59,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 03:26:59,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585890565] [2024-09-13 03:26:59,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585890565] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 03:26:59,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [310985932] [2024-09-13 03:26:59,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 03:26:59,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 03:26:59,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 03:26:59,638 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 03:26:59,641 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 03:26:59,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:26:59,687 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-13 03:26:59,688 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 03:26:59,719 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 03:26:59,721 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 03:26:59,863 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 03:26:59,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [310985932] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 03:26:59,866 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 03:26:59,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 11 [2024-09-13 03:26:59,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825968994] [2024-09-13 03:26:59,866 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 03:26:59,866 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-13 03:26:59,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 03:26:59,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-13 03:26:59,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-09-13 03:26:59,867 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 11 states, 9 states have (on average 3.111111111111111) internal successors, (28), 11 states have internal predecessors, (28), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-13 03:26:59,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 03:26:59,975 INFO L93 Difference]: Finished difference Result 41 states and 55 transitions. [2024-09-13 03:26:59,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-13 03:26:59,976 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 3.111111111111111) internal successors, (28), 11 states have internal predecessors, (28), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Word has length 27 [2024-09-13 03:26:59,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 03:26:59,977 INFO L225 Difference]: With dead ends: 41 [2024-09-13 03:26:59,977 INFO L226 Difference]: Without dead ends: 37 [2024-09-13 03:26:59,977 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 57 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-09-13 03:26:59,978 INFO L434 NwaCegarLoop]: 20 mSDtfsCounter, 21 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-13 03:26:59,978 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 83 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-13 03:26:59,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-09-13 03:26:59,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-09-13 03:26:59,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 24 states have internal predecessors, (26), 8 states have call successors, (8), 4 states have call predecessors, (8), 6 states have return successors, (17), 8 states have call predecessors, (17), 7 states have call successors, (17) [2024-09-13 03:26:59,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 51 transitions. [2024-09-13 03:26:59,992 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 51 transitions. Word has length 27 [2024-09-13 03:26:59,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 03:26:59,993 INFO L474 AbstractCegarLoop]: Abstraction has 37 states and 51 transitions. [2024-09-13 03:26:59,993 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 3.111111111111111) internal successors, (28), 11 states have internal predecessors, (28), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-13 03:26:59,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:26:59,993 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2024-09-13 03:26:59,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-09-13 03:26:59,994 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 03:26:59,994 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 03:27:00,006 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-13 03:27:00,194 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 03:27:00,195 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 03:27:00,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:27:00,196 INFO L85 PathProgramCache]: Analyzing trace with hash 413055705, now seen corresponding path program 2 times [2024-09-13 03:27:00,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 03:27:00,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020141784] [2024-09-13 03:27:00,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 03:27:00,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 03:27:00,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:00,239 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-13 03:27:00,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:00,243 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-13 03:27:00,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:00,277 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:00,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:00,329 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:00,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:00,334 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 03:27:00,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:00,344 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 03:27:00,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:00,362 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-09-13 03:27:00,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 03:27:00,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020141784] [2024-09-13 03:27:00,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020141784] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 03:27:00,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [809749961] [2024-09-13 03:27:00,363 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-13 03:27:00,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 03:27:00,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 03:27:00,365 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 03:27:00,366 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 03:27:00,398 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-13 03:27:00,398 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-13 03:27:00,399 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-13 03:27:00,400 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 03:27:00,458 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-09-13 03:27:00,458 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 03:27:00,748 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-09-13 03:27:00,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [809749961] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 03:27:00,748 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 03:27:00,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 9] total 17 [2024-09-13 03:27:00,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177132328] [2024-09-13 03:27:00,749 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 03:27:00,749 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-13 03:27:00,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 03:27:00,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-13 03:27:00,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2024-09-13 03:27:00,750 INFO L87 Difference]: Start difference. First operand 37 states and 51 transitions. Second operand has 17 states, 15 states have (on average 2.933333333333333) internal successors, (44), 17 states have internal predecessors, (44), 10 states have call successors, (14), 1 states have call predecessors, (14), 7 states have return successors, (14), 7 states have call predecessors, (14), 10 states have call successors, (14) [2024-09-13 03:27:00,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 03:27:00,923 INFO L93 Difference]: Finished difference Result 72 states and 109 transitions. [2024-09-13 03:27:00,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-13 03:27:00,924 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 2.933333333333333) internal successors, (44), 17 states have internal predecessors, (44), 10 states have call successors, (14), 1 states have call predecessors, (14), 7 states have return successors, (14), 7 states have call predecessors, (14), 10 states have call successors, (14) Word has length 40 [2024-09-13 03:27:00,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 03:27:00,925 INFO L225 Difference]: With dead ends: 72 [2024-09-13 03:27:00,925 INFO L226 Difference]: Without dead ends: 41 [2024-09-13 03:27:00,925 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 84 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2024-09-13 03:27:00,926 INFO L434 NwaCegarLoop]: 18 mSDtfsCounter, 41 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-13 03:27:00,926 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 91 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-13 03:27:00,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-09-13 03:27:00,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-09-13 03:27:00,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 26 states have internal predecessors, (30), 7 states have call successors, (7), 6 states have call predecessors, (7), 6 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-13 03:27:00,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2024-09-13 03:27:00,933 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 40 [2024-09-13 03:27:00,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 03:27:00,934 INFO L474 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2024-09-13 03:27:00,934 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 2.933333333333333) internal successors, (44), 17 states have internal predecessors, (44), 10 states have call successors, (14), 1 states have call predecessors, (14), 7 states have return successors, (14), 7 states have call predecessors, (14), 10 states have call successors, (14) [2024-09-13 03:27:00,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:27:00,934 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2024-09-13 03:27:00,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-09-13 03:27:00,935 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 03:27:00,935 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 03:27:00,948 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 03:27:01,139 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 03:27:01,140 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 03:27:01,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:27:01,140 INFO L85 PathProgramCache]: Analyzing trace with hash -926093039, now seen corresponding path program 3 times [2024-09-13 03:27:01,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 03:27:01,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778945515] [2024-09-13 03:27:01,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 03:27:01,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 03:27:01,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:01,199 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-13 03:27:01,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:01,201 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-13 03:27:01,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:01,266 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:01,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:01,308 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:01,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:01,338 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:01,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:01,357 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 03:27:01,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:01,360 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 03:27:01,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:01,367 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:27:01,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:01,378 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:01,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:01,386 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 03:27:01,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:01,392 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 17 proven. 88 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-13 03:27:01,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 03:27:01,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778945515] [2024-09-13 03:27:01,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778945515] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 03:27:01,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [767606824] [2024-09-13 03:27:01,393 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-13 03:27:01,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 03:27:01,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 03:27:01,394 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 03:27:01,395 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 03:27:01,434 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-09-13 03:27:01,435 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-13 03:27:01,435 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-13 03:27:01,437 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 03:27:01,467 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 66 proven. 25 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-09-13 03:27:01,468 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 03:27:01,737 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 68 proven. 30 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-09-13 03:27:01,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [767606824] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 03:27:01,738 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 03:27:01,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 9] total 16 [2024-09-13 03:27:01,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035535628] [2024-09-13 03:27:01,738 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 03:27:01,738 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-13 03:27:01,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 03:27:01,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-13 03:27:01,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2024-09-13 03:27:01,739 INFO L87 Difference]: Start difference. First operand 41 states and 49 transitions. Second operand has 16 states, 14 states have (on average 3.142857142857143) internal successors, (44), 16 states have internal predecessors, (44), 11 states have call successors, (16), 1 states have call predecessors, (16), 5 states have return successors, (18), 10 states have call predecessors, (18), 11 states have call successors, (18) [2024-09-13 03:27:01,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 03:27:01,876 INFO L93 Difference]: Finished difference Result 83 states and 114 transitions. [2024-09-13 03:27:01,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-13 03:27:01,876 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 3.142857142857143) internal successors, (44), 16 states have internal predecessors, (44), 11 states have call successors, (16), 1 states have call predecessors, (16), 5 states have return successors, (18), 10 states have call predecessors, (18), 11 states have call successors, (18) Word has length 68 [2024-09-13 03:27:01,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 03:27:01,878 INFO L225 Difference]: With dead ends: 83 [2024-09-13 03:27:01,878 INFO L226 Difference]: Without dead ends: 79 [2024-09-13 03:27:01,879 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 148 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-09-13 03:27:01,881 INFO L434 NwaCegarLoop]: 21 mSDtfsCounter, 32 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-13 03:27:01,881 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 109 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-13 03:27:01,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-09-13 03:27:01,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 73. [2024-09-13 03:27:01,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 47 states have (on average 1.148936170212766) internal successors, (54), 46 states have internal predecessors, (54), 15 states have call successors, (15), 8 states have call predecessors, (15), 10 states have return successors, (32), 18 states have call predecessors, (32), 14 states have call successors, (32) [2024-09-13 03:27:01,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 101 transitions. [2024-09-13 03:27:01,893 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 101 transitions. Word has length 68 [2024-09-13 03:27:01,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 03:27:01,893 INFO L474 AbstractCegarLoop]: Abstraction has 73 states and 101 transitions. [2024-09-13 03:27:01,893 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 3.142857142857143) internal successors, (44), 16 states have internal predecessors, (44), 11 states have call successors, (16), 1 states have call predecessors, (16), 5 states have return successors, (18), 10 states have call predecessors, (18), 11 states have call successors, (18) [2024-09-13 03:27:01,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:27:01,894 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 101 transitions. [2024-09-13 03:27:01,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-09-13 03:27:01,896 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 03:27:01,896 INFO L216 NwaCegarLoop]: trace histogram [15, 15, 12, 7, 7, 7, 7, 7, 7, 7, 5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 03:27:01,909 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-13 03:27:02,100 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 03:27:02,101 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 03:27:02,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:27:02,101 INFO L85 PathProgramCache]: Analyzing trace with hash -257182465, now seen corresponding path program 4 times [2024-09-13 03:27:02,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 03:27:02,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500192392] [2024-09-13 03:27:02,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 03:27:02,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 03:27:02,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:02,179 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-13 03:27:02,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:02,181 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-13 03:27:02,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:02,264 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:02,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:02,322 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:02,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:02,359 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:02,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:02,386 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:02,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:02,404 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 03:27:02,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:02,408 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 03:27:02,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:02,412 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:27:02,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:02,421 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:02,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:02,427 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 03:27:02,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:02,429 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 03:27:02,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:02,444 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:02,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:02,451 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:02,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:02,453 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 03:27:02,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:02,455 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 03:27:02,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:02,456 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 03:27:02,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 03:27:02,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500192392] [2024-09-13 03:27:02,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500192392] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 03:27:02,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016984527] [2024-09-13 03:27:02,457 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-13 03:27:02,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 03:27:02,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 03:27:02,458 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 03:27:02,459 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 03:27:02,519 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-13 03:27:02,520 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-13 03:27:02,521 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-13 03:27:02,523 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 03:27:02,588 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 03:27:02,588 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 03:27:03,244 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 42 proven. 255 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2024-09-13 03:27:03,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016984527] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 03:27:03,244 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 03:27:03,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9, 13] total 20 [2024-09-13 03:27:03,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630120255] [2024-09-13 03:27:03,244 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 03:27:03,245 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-09-13 03:27:03,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 03:27:03,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-09-13 03:27:03,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2024-09-13 03:27:03,248 INFO L87 Difference]: Start difference. First operand 73 states and 101 transitions. Second operand has 20 states, 18 states have (on average 3.0) internal successors, (54), 20 states have internal predecessors, (54), 17 states have call successors, (20), 1 states have call predecessors, (20), 6 states have return successors, (25), 10 states have call predecessors, (25), 17 states have call successors, (25) [2024-09-13 03:27:03,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 03:27:03,407 INFO L93 Difference]: Finished difference Result 150 states and 231 transitions. [2024-09-13 03:27:03,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-13 03:27:03,407 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 3.0) internal successors, (54), 20 states have internal predecessors, (54), 17 states have call successors, (20), 1 states have call predecessors, (20), 6 states have return successors, (25), 10 states have call predecessors, (25), 17 states have call successors, (25) Word has length 109 [2024-09-13 03:27:03,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 03:27:03,410 INFO L225 Difference]: With dead ends: 150 [2024-09-13 03:27:03,410 INFO L226 Difference]: Without dead ends: 146 [2024-09-13 03:27:03,414 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 238 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=284, Unknown=0, NotChecked=0, Total=420 [2024-09-13 03:27:03,415 INFO L434 NwaCegarLoop]: 21 mSDtfsCounter, 58 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-13 03:27:03,415 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 110 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-13 03:27:03,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-09-13 03:27:03,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 137. [2024-09-13 03:27:03,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 87 states have (on average 1.1724137931034482) internal successors, (102), 86 states have internal predecessors, (102), 31 states have call successors, (31), 12 states have call predecessors, (31), 18 states have return successors, (81), 38 states have call predecessors, (81), 30 states have call successors, (81) [2024-09-13 03:27:03,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 214 transitions. [2024-09-13 03:27:03,461 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 214 transitions. Word has length 109 [2024-09-13 03:27:03,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 03:27:03,462 INFO L474 AbstractCegarLoop]: Abstraction has 137 states and 214 transitions. [2024-09-13 03:27:03,462 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 3.0) internal successors, (54), 20 states have internal predecessors, (54), 17 states have call successors, (20), 1 states have call predecessors, (20), 6 states have return successors, (25), 10 states have call predecessors, (25), 17 states have call successors, (25) [2024-09-13 03:27:03,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:27:03,463 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 214 transitions. [2024-09-13 03:27:03,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-09-13 03:27:03,466 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 03:27:03,466 INFO L216 NwaCegarLoop]: trace histogram [31, 31, 25, 15, 15, 15, 15, 15, 15, 15, 10, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 03:27:03,478 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-13 03:27:03,670 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-09-13 03:27:03,671 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 03:27:03,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:27:03,671 INFO L85 PathProgramCache]: Analyzing trace with hash -2056076178, now seen corresponding path program 5 times [2024-09-13 03:27:03,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 03:27:03,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950236971] [2024-09-13 03:27:03,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 03:27:03,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 03:27:03,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:03,800 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-13 03:27:03,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:03,802 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-13 03:27:03,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:03,957 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:03,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:04,034 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:04,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:04,074 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:04,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:04,109 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:04,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:04,135 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:04,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:04,148 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 03:27:04,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:04,151 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 03:27:04,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:04,154 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:27:04,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:04,160 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:04,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:04,162 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 03:27:04,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:04,166 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 03:27:04,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:04,173 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:04,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:04,177 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:04,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:04,178 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 03:27:04,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:04,179 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 03:27:04,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:04,180 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-13 03:27:04,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:04,242 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:04,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:04,274 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:04,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:04,285 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:04,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:04,289 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:04,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:04,291 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 03:27:04,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:04,292 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 03:27:04,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:04,306 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:27:04,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:04,356 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:04,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:04,358 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 03:27:04,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:04,361 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 03:27:04,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:04,368 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:04,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:04,371 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:04,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:04,372 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 03:27:04,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:04,373 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 03:27:04,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:04,376 INFO L134 CoverageAnalysis]: Checked inductivity of 2580 backedges. 403 proven. 706 refuted. 0 times theorem prover too weak. 1471 trivial. 0 not checked. [2024-09-13 03:27:04,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 03:27:04,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950236971] [2024-09-13 03:27:04,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950236971] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 03:27:04,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502260518] [2024-09-13 03:27:04,376 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-13 03:27:04,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 03:27:04,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 03:27:04,378 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 03:27:04,379 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 03:27:04,461 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2024-09-13 03:27:04,461 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-13 03:27:04,462 INFO L262 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-09-13 03:27:04,466 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 03:27:04,601 INFO L134 CoverageAnalysis]: Checked inductivity of 2580 backedges. 630 proven. 586 refuted. 0 times theorem prover too weak. 1364 trivial. 0 not checked. [2024-09-13 03:27:04,602 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 03:27:06,046 INFO L134 CoverageAnalysis]: Checked inductivity of 2580 backedges. 634 proven. 619 refuted. 0 times theorem prover too weak. 1327 trivial. 0 not checked. [2024-09-13 03:27:06,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1502260518] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 03:27:06,047 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 03:27:06,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 14, 21] total 33 [2024-09-13 03:27:06,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412271182] [2024-09-13 03:27:06,047 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 03:27:06,047 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-09-13 03:27:06,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 03:27:06,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-09-13 03:27:06,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=244, Invalid=812, Unknown=0, NotChecked=0, Total=1056 [2024-09-13 03:27:06,049 INFO L87 Difference]: Start difference. First operand 137 states and 214 transitions. Second operand has 33 states, 32 states have (on average 2.84375) internal successors, (91), 33 states have internal predecessors, (91), 25 states have call successors, (33), 1 states have call predecessors, (33), 12 states have return successors, (43), 20 states have call predecessors, (43), 25 states have call successors, (43) [2024-09-13 03:27:06,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 03:27:06,441 INFO L93 Difference]: Finished difference Result 229 states and 428 transitions. [2024-09-13 03:27:06,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-09-13 03:27:06,442 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 2.84375) internal successors, (91), 33 states have internal predecessors, (91), 25 states have call successors, (33), 1 states have call predecessors, (33), 12 states have return successors, (43), 20 states have call predecessors, (43), 25 states have call successors, (43) Word has length 218 [2024-09-13 03:27:06,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 03:27:06,444 INFO L225 Difference]: With dead ends: 229 [2024-09-13 03:27:06,444 INFO L226 Difference]: Without dead ends: 101 [2024-09-13 03:27:06,447 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 537 GetRequests, 478 SyntacticMatches, 10 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 853 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=641, Invalid=1909, Unknown=0, NotChecked=0, Total=2550 [2024-09-13 03:27:06,447 INFO L434 NwaCegarLoop]: 28 mSDtfsCounter, 104 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-13 03:27:06,447 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 204 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-13 03:27:06,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-09-13 03:27:06,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 87. [2024-09-13 03:27:06,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 60 states have (on average 1.0333333333333334) internal successors, (62), 58 states have internal predecessors, (62), 17 states have call successors, (17), 14 states have call predecessors, (17), 9 states have return successors, (37), 14 states have call predecessors, (37), 16 states have call successors, (37) [2024-09-13 03:27:06,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 116 transitions. [2024-09-13 03:27:06,458 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 116 transitions. Word has length 218 [2024-09-13 03:27:06,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 03:27:06,458 INFO L474 AbstractCegarLoop]: Abstraction has 87 states and 116 transitions. [2024-09-13 03:27:06,458 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 2.84375) internal successors, (91), 33 states have internal predecessors, (91), 25 states have call successors, (33), 1 states have call predecessors, (33), 12 states have return successors, (43), 20 states have call predecessors, (43), 25 states have call successors, (43) [2024-09-13 03:27:06,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:27:06,458 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 116 transitions. [2024-09-13 03:27:06,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2024-09-13 03:27:06,461 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 03:27:06,461 INFO L216 NwaCegarLoop]: trace histogram [41, 41, 33, 20, 20, 20, 20, 20, 20, 20, 13, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 03:27:06,474 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 03:27:06,661 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 03:27:06,662 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 03:27:06,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:27:06,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1181858135, now seen corresponding path program 6 times [2024-09-13 03:27:06,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 03:27:06,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956396537] [2024-09-13 03:27:06,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 03:27:06,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 03:27:06,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:07,748 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-13 03:27:07,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:07,750 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-13 03:27:07,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:08,339 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:08,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:08,572 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:08,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:08,678 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:08,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:08,747 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:08,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:08,799 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:08,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:08,835 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:08,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:08,841 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 03:27:08,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:08,864 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 03:27:08,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:08,870 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:27:08,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:08,884 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:08,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:08,889 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 03:27:08,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:08,895 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 03:27:08,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:08,916 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:08,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:08,929 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:08,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:08,934 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 03:27:08,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:08,939 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 03:27:08,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:08,948 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-13 03:27:08,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:09,023 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:09,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:09,050 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:09,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:09,063 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:09,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:09,069 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 03:27:09,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:09,074 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 03:27:09,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:09,079 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:27:09,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:09,093 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:09,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:09,097 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 03:27:09,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:09,105 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-13 03:27:09,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:09,200 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:09,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:09,239 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:09,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:09,260 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:09,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:09,272 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:09,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:09,279 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 03:27:09,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:09,284 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 03:27:09,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:09,290 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:27:09,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:09,305 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:09,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:09,310 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 03:27:09,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:09,317 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 03:27:09,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:09,341 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:09,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:09,353 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:09,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:09,358 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 03:27:09,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:09,364 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 03:27:09,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:09,371 INFO L134 CoverageAnalysis]: Checked inductivity of 4568 backedges. 0 proven. 1500 refuted. 0 times theorem prover too weak. 3068 trivial. 0 not checked. [2024-09-13 03:27:09,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 03:27:09,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956396537] [2024-09-13 03:27:09,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956396537] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 03:27:09,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [458745139] [2024-09-13 03:27:09,372 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-13 03:27:09,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 03:27:09,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 03:27:09,377 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 03:27:09,378 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 03:27:09,514 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 41 check-sat command(s) [2024-09-13 03:27:09,514 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-13 03:27:09,518 INFO L262 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 167 conjuncts are in the unsatisfiable core [2024-09-13 03:27:09,525 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 03:27:09,808 INFO L134 CoverageAnalysis]: Checked inductivity of 4568 backedges. 0 proven. 1500 refuted. 0 times theorem prover too weak. 3068 trivial. 0 not checked. [2024-09-13 03:27:09,808 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 03:27:10,917 INFO L134 CoverageAnalysis]: Checked inductivity of 4568 backedges. 0 proven. 1500 refuted. 0 times theorem prover too weak. 3068 trivial. 0 not checked. [2024-09-13 03:27:10,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [458745139] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 03:27:10,917 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 03:27:10,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 28 [2024-09-13 03:27:10,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899850699] [2024-09-13 03:27:10,917 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 03:27:10,918 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-09-13 03:27:10,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 03:27:10,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-09-13 03:27:10,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2024-09-13 03:27:10,919 INFO L87 Difference]: Start difference. First operand 87 states and 116 transitions. Second operand has 28 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 15 states have internal predecessors, (34), 6 states have call successors, (9), 1 states have call predecessors, (9), 8 states have return successors, (19), 19 states have call predecessors, (19), 6 states have call successors, (19) [2024-09-13 03:27:11,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 03:27:11,152 INFO L93 Difference]: Finished difference Result 108 states and 158 transitions. [2024-09-13 03:27:11,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-13 03:27:11,152 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 15 states have internal predecessors, (34), 6 states have call successors, (9), 1 states have call predecessors, (9), 8 states have return successors, (19), 19 states have call predecessors, (19), 6 states have call successors, (19) Word has length 286 [2024-09-13 03:27:11,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 03:27:11,154 INFO L225 Difference]: With dead ends: 108 [2024-09-13 03:27:11,154 INFO L226 Difference]: Without dead ends: 104 [2024-09-13 03:27:11,154 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 740 GetRequests, 714 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2024-09-13 03:27:11,155 INFO L434 NwaCegarLoop]: 45 mSDtfsCounter, 0 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 793 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-13 03:27:11,155 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 793 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-13 03:27:11,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-09-13 03:27:11,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 97. [2024-09-13 03:27:11,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 66 states have (on average 1.0303030303030303) internal successors, (68), 64 states have internal predecessors, (68), 19 states have call successors, (19), 14 states have call predecessors, (19), 11 states have return successors, (55), 18 states have call predecessors, (55), 18 states have call successors, (55) [2024-09-13 03:27:11,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 142 transitions. [2024-09-13 03:27:11,175 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 142 transitions. Word has length 286 [2024-09-13 03:27:11,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 03:27:11,175 INFO L474 AbstractCegarLoop]: Abstraction has 97 states and 142 transitions. [2024-09-13 03:27:11,176 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 15 states have internal predecessors, (34), 6 states have call successors, (9), 1 states have call predecessors, (9), 8 states have return successors, (19), 19 states have call predecessors, (19), 6 states have call successors, (19) [2024-09-13 03:27:11,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:27:11,176 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 142 transitions. [2024-09-13 03:27:11,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2024-09-13 03:27:11,180 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 03:27:11,180 INFO L216 NwaCegarLoop]: trace histogram [51, 51, 41, 25, 25, 25, 25, 25, 25, 25, 16, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 03:27:11,193 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 03:27:11,384 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 03:27:11,385 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 03:27:11,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:27:11,385 INFO L85 PathProgramCache]: Analyzing trace with hash 2079867300, now seen corresponding path program 7 times [2024-09-13 03:27:11,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 03:27:11,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349911623] [2024-09-13 03:27:11,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 03:27:11,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 03:27:11,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:11,613 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-13 03:27:11,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:11,615 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-13 03:27:11,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:11,804 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:11,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:11,877 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:11,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:11,930 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:11,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:11,962 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:11,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:11,986 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:11,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,008 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:12,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,023 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 03:27:12,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,025 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 03:27:12,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,027 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:27:12,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,031 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:12,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,032 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 03:27:12,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,033 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 03:27:12,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,038 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:12,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,040 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:12,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,041 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 03:27:12,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,042 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 03:27:12,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,043 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-13 03:27:12,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,052 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:12,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,055 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:12,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,057 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:12,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,058 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 03:27:12,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,059 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 03:27:12,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,060 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:27:12,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,061 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:12,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,062 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 03:27:12,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,063 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-13 03:27:12,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,133 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:12,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,180 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:12,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,205 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:12,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,210 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:12,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,212 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:12,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,213 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 03:27:12,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,214 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 03:27:12,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,215 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:27:12,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,255 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:12,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,257 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 03:27:12,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,259 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 03:27:12,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,265 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:12,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,267 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:12,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,269 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 03:27:12,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,270 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 03:27:12,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,271 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-13 03:27:12,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,280 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:12,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,283 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:12,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,286 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:12,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,287 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 03:27:12,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,288 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 03:27:12,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,289 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:27:12,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,291 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:12,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,292 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 03:27:12,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,295 INFO L134 CoverageAnalysis]: Checked inductivity of 7120 backedges. 844 proven. 1612 refuted. 0 times theorem prover too weak. 4664 trivial. 0 not checked. [2024-09-13 03:27:12,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 03:27:12,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349911623] [2024-09-13 03:27:12,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349911623] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 03:27:12,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1238275961] [2024-09-13 03:27:12,295 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-13 03:27:12,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 03:27:12,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 03:27:12,297 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 03:27:12,298 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 03:27:12,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:12,414 INFO L262 TraceCheckSpWp]: Trace formula consists of 805 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-13 03:27:12,418 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 03:27:12,508 INFO L134 CoverageAnalysis]: Checked inductivity of 7120 backedges. 1111 proven. 600 refuted. 0 times theorem prover too weak. 5409 trivial. 0 not checked. [2024-09-13 03:27:12,508 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 03:27:14,184 INFO L134 CoverageAnalysis]: Checked inductivity of 7120 backedges. 1111 proven. 651 refuted. 0 times theorem prover too weak. 5358 trivial. 0 not checked. [2024-09-13 03:27:14,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1238275961] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 03:27:14,184 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 03:27:14,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 11, 17] total 35 [2024-09-13 03:27:14,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882008298] [2024-09-13 03:27:14,185 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 03:27:14,185 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-09-13 03:27:14,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 03:27:14,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-09-13 03:27:14,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=278, Invalid=912, Unknown=0, NotChecked=0, Total=1190 [2024-09-13 03:27:14,187 INFO L87 Difference]: Start difference. First operand 97 states and 142 transitions. Second operand has 35 states, 34 states have (on average 2.5588235294117645) internal successors, (87), 35 states have internal predecessors, (87), 24 states have call successors, (31), 1 states have call predecessors, (31), 15 states have return successors, (44), 25 states have call predecessors, (44), 24 states have call successors, (44) [2024-09-13 03:27:14,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 03:27:14,634 INFO L93 Difference]: Finished difference Result 230 states and 452 transitions. [2024-09-13 03:27:14,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-09-13 03:27:14,634 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 2.5588235294117645) internal successors, (87), 35 states have internal predecessors, (87), 24 states have call successors, (31), 1 states have call predecessors, (31), 15 states have return successors, (44), 25 states have call predecessors, (44), 24 states have call successors, (44) Word has length 354 [2024-09-13 03:27:14,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 03:27:14,636 INFO L225 Difference]: With dead ends: 230 [2024-09-13 03:27:14,636 INFO L226 Difference]: Without dead ends: 127 [2024-09-13 03:27:14,637 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 858 GetRequests, 794 SyntacticMatches, 8 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1125 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=759, Invalid=2547, Unknown=0, NotChecked=0, Total=3306 [2024-09-13 03:27:14,638 INFO L434 NwaCegarLoop]: 39 mSDtfsCounter, 165 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-13 03:27:14,638 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 209 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-13 03:27:14,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-09-13 03:27:14,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 113. [2024-09-13 03:27:14,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 78 states have (on average 1.0256410256410255) internal successors, (80), 76 states have internal predecessors, (80), 23 states have call successors, (23), 18 states have call predecessors, (23), 11 states have return successors, (47), 18 states have call predecessors, (47), 22 states have call successors, (47) [2024-09-13 03:27:14,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 150 transitions. [2024-09-13 03:27:14,649 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 150 transitions. Word has length 354 [2024-09-13 03:27:14,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 03:27:14,649 INFO L474 AbstractCegarLoop]: Abstraction has 113 states and 150 transitions. [2024-09-13 03:27:14,649 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 2.5588235294117645) internal successors, (87), 35 states have internal predecessors, (87), 24 states have call successors, (31), 1 states have call predecessors, (31), 15 states have return successors, (44), 25 states have call predecessors, (44), 24 states have call successors, (44) [2024-09-13 03:27:14,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:27:14,650 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 150 transitions. [2024-09-13 03:27:14,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2024-09-13 03:27:14,654 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 03:27:14,655 INFO L216 NwaCegarLoop]: trace histogram [51, 51, 41, 25, 25, 25, 25, 25, 25, 25, 16, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 03:27:14,670 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 03:27:14,855 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 03:27:14,856 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 03:27:14,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:27:14,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1239419108, now seen corresponding path program 8 times [2024-09-13 03:27:14,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 03:27:14,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748373082] [2024-09-13 03:27:14,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 03:27:14,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 03:27:14,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,035 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-13 03:27:15,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,037 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-13 03:27:15,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,232 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:15,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,361 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:15,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,430 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:15,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,472 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:15,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,496 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:15,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,500 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:15,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,502 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:15,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,503 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 03:27:15,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,503 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 03:27:15,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,505 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:27:15,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,539 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:15,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,541 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 03:27:15,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,543 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 03:27:15,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,548 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:15,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,550 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:15,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,551 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 03:27:15,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,552 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 03:27:15,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,553 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-13 03:27:15,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,561 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:15,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,564 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:15,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,566 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:15,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,567 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 03:27:15,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,567 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 03:27:15,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,568 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:27:15,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,570 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:15,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,571 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 03:27:15,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,572 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-13 03:27:15,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,602 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:15,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,633 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:15,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,657 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:15,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,669 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 03:27:15,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,672 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 03:27:15,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,673 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:27:15,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,677 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:15,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,678 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 03:27:15,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,679 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2024-09-13 03:27:15,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,698 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:15,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,706 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:15,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,709 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:15,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,712 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:15,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,713 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 03:27:15,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,715 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 03:27:15,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,716 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-13 03:27:15,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,718 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:15,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,719 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 03:27:15,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,721 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-13 03:27:15,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,724 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:15,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,726 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-13 03:27:15,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,727 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-13 03:27:15,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,728 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-13 03:27:15,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 03:27:15,732 INFO L134 CoverageAnalysis]: Checked inductivity of 7120 backedges. 913 proven. 1281 refuted. 0 times theorem prover too weak. 4926 trivial. 0 not checked. [2024-09-13 03:27:15,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 03:27:15,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748373082] [2024-09-13 03:27:15,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748373082] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 03:27:15,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [58248827] [2024-09-13 03:27:15,733 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-13 03:27:15,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 03:27:15,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 03:27:15,734 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 03:27:15,736 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 03:27:15,879 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-13 03:27:15,879 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-13 03:27:15,881 INFO L262 TraceCheckSpWp]: Trace formula consists of 805 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-13 03:27:15,886 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 03:27:15,999 INFO L134 CoverageAnalysis]: Checked inductivity of 7120 backedges. 419 proven. 1507 refuted. 0 times theorem prover too weak. 5194 trivial. 0 not checked. [2024-09-13 03:27:16,000 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 03:27:17,989 INFO L134 CoverageAnalysis]: Checked inductivity of 7120 backedges. 419 proven. 1577 refuted. 0 times theorem prover too weak. 5124 trivial. 0 not checked. [2024-09-13 03:27:17,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [58248827] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 03:27:17,991 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 03:27:17,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 12, 19] total 33 [2024-09-13 03:27:17,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070779712] [2024-09-13 03:27:17,992 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 03:27:17,992 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-09-13 03:27:17,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 03:27:17,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-09-13 03:27:17,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=249, Invalid=807, Unknown=0, NotChecked=0, Total=1056 [2024-09-13 03:27:17,993 INFO L87 Difference]: Start difference. First operand 113 states and 150 transitions. Second operand has 33 states, 32 states have (on average 2.71875) internal successors, (87), 33 states have internal predecessors, (87), 26 states have call successors, (31), 1 states have call predecessors, (31), 14 states have return successors, (44), 20 states have call predecessors, (44), 26 states have call successors, (44) [2024-09-13 03:27:18,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 03:27:18,311 INFO L93 Difference]: Finished difference Result 214 states and 297 transitions. [2024-09-13 03:27:18,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-13 03:27:18,312 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 2.71875) internal successors, (87), 33 states have internal predecessors, (87), 26 states have call successors, (31), 1 states have call predecessors, (31), 14 states have return successors, (44), 20 states have call predecessors, (44), 26 states have call successors, (44) Word has length 354 [2024-09-13 03:27:18,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 03:27:18,313 INFO L225 Difference]: With dead ends: 214 [2024-09-13 03:27:18,313 INFO L226 Difference]: Without dead ends: 0 [2024-09-13 03:27:18,316 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 843 GetRequests, 792 SyntacticMatches, 9 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 699 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=469, Invalid=1423, Unknown=0, NotChecked=0, Total=1892 [2024-09-13 03:27:18,316 INFO L434 NwaCegarLoop]: 39 mSDtfsCounter, 54 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-13 03:27:18,316 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 236 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-13 03:27:18,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-13 03:27:18,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-13 03:27:18,317 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 03:27:18,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-13 03:27:18,317 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 354 [2024-09-13 03:27:18,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 03:27:18,318 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-13 03:27:18,318 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 2.71875) internal successors, (87), 33 states have internal predecessors, (87), 26 states have call successors, (31), 1 states have call predecessors, (31), 14 states have return successors, (44), 20 states have call predecessors, (44), 26 states have call successors, (44) [2024-09-13 03:27:18,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 03:27:18,318 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-13 03:27:18,318 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-13 03:27:18,320 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-09-13 03:27:18,335 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-13 03:27:18,521 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-09-13 03:27:18,524 INFO L408 BasicCegarLoop]: Path program histogram: [8, 1, 1, 1] [2024-09-13 03:27:18,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-09-13 03:27:20,380 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-13 03:27:20,409 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-09-13 03:27:20,411 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.09 03:27:20 BoogieIcfgContainer [2024-09-13 03:27:20,411 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-13 03:27:20,413 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-09-13 03:27:20,414 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-09-13 03:27:20,414 INFO L274 PluginConnector]: Witness Printer initialized [2024-09-13 03:27:20,414 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 03:26:58" (3/4) ... [2024-09-13 03:27:20,416 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-09-13 03:27:20,418 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2024-09-13 03:27:20,419 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2024-09-13 03:27:20,419 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure fibo [2024-09-13 03:27:20,421 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-09-13 03:27:20,422 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-09-13 03:27:20,422 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-09-13 03:27:20,422 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-09-13 03:27:20,487 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.graphml [2024-09-13 03:27:20,487 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml [2024-09-13 03:27:20,487 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-09-13 03:27:20,488 INFO L158 Benchmark]: Toolchain (without parser) took 22857.73ms. Allocated memory was 192.9MB in the beginning and 587.2MB in the end (delta: 394.3MB). Free memory was 123.0MB in the beginning and 244.9MB in the end (delta: -121.9MB). Peak memory consumption was 274.2MB. Max. memory is 16.1GB. [2024-09-13 03:27:20,488 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 117.4MB. Free memory is still 79.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 03:27:20,488 INFO L158 Benchmark]: CACSL2BoogieTranslator took 167.62ms. Allocated memory is still 192.9MB. Free memory was 122.7MB in the beginning and 111.9MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-13 03:27:20,488 INFO L158 Benchmark]: Boogie Procedure Inliner took 16.72ms. Allocated memory is still 192.9MB. Free memory was 111.9MB in the beginning and 110.9MB in the end (delta: 965.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-13 03:27:20,488 INFO L158 Benchmark]: Boogie Preprocessor took 24.09ms. Allocated memory is still 192.9MB. Free memory was 110.7MB in the beginning and 109.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 03:27:20,489 INFO L158 Benchmark]: RCFGBuilder took 250.33ms. Allocated memory is still 192.9MB. Free memory was 109.3MB in the beginning and 157.9MB in the end (delta: -48.7MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2024-09-13 03:27:20,489 INFO L158 Benchmark]: TraceAbstraction took 22319.77ms. Allocated memory was 192.9MB in the beginning and 587.2MB in the end (delta: 394.3MB). Free memory was 157.2MB in the beginning and 249.1MB in the end (delta: -91.9MB). Peak memory consumption was 348.2MB. Max. memory is 16.1GB. [2024-09-13 03:27:20,490 INFO L158 Benchmark]: Witness Printer took 73.81ms. Allocated memory is still 587.2MB. Free memory was 249.1MB in the beginning and 244.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-13 03:27:20,491 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 117.4MB. Free memory is still 79.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 167.62ms. Allocated memory is still 192.9MB. Free memory was 122.7MB in the beginning and 111.9MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 16.72ms. Allocated memory is still 192.9MB. Free memory was 111.9MB in the beginning and 110.9MB in the end (delta: 965.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.09ms. Allocated memory is still 192.9MB. Free memory was 110.7MB in the beginning and 109.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 250.33ms. Allocated memory is still 192.9MB. Free memory was 109.3MB in the beginning and 157.9MB in the end (delta: -48.7MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * TraceAbstraction took 22319.77ms. Allocated memory was 192.9MB in the beginning and 587.2MB in the end (delta: 394.3MB). Free memory was 157.2MB in the beginning and 249.1MB in the end (delta: -91.9MB). Peak memory consumption was 348.2MB. Max. memory is 16.1GB. * Witness Printer took 73.81ms. Allocated memory is still 587.2MB. Free memory was 249.1MB in the beginning and 244.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * 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: 29]: 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 4 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 20.4s, OverallIterations: 11, TraceHistogramMax: 51, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 566 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 515 mSDsluCounter, 1979 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1699 mSDsCounter, 535 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2674 IncrementalHoareTripleChecker+Invalid, 3209 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 535 mSolverCounterUnsat, 280 mSDtfsCounter, 2674 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3668 GetRequests, 3370 SyntacticMatches, 42 SemanticMatches, 256 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3166 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=137occurred in iteration=7, InterpolantAutomatonStates: 178, 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, 11 MinimizatonAttempts, 54 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 15.1s InterpolantComputationTime, 2991 NumberOfCodeBlocks, 2908 NumberOfCodeBlocksAsserted, 89 NumberOfCheckSat, 4444 ConstructedInterpolants, 0 QuantifiedInterpolants, 7930 SizeOfPredicates, 33 NumberOfNonLiveVariables, 3230 ConjunctsInSsa, 261 ConjunctsInUnsatCore, 29 InterpolantComputations, 2 PerfectInterpolantSequences, 52070/66657 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ProcedureContractResult [Line: 7]: Procedure Contract for fibo Derived contract for procedure fibo. Ensures: ((0 < \old(n)) || (\result == 0)) RESULT: Ultimate proved your program to be correct! [2024-09-13 03:27:20,516 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