./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --witnessprinter.generate.graphml.witnesses false --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version de325976 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 50f60fa428d099767eedeaaecff58f84e68d960030ff43c7eae2dbdfbde6f992 --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --witnessprinter.generate.graphml.witnesses false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.referee-eval-de32597-m [2024-09-18 16:40:39,074 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-18 16:40:39,146 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-18 16:40:39,151 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-18 16:40:39,152 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-18 16:40:39,173 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-18 16:40:39,174 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-18 16:40:39,175 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-18 16:40:39,175 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-18 16:40:39,177 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-18 16:40:39,178 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-18 16:40:39,178 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-18 16:40:39,179 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-18 16:40:39,179 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-18 16:40:39,180 INFO L153 SettingsManager]: * Use SBE=true [2024-09-18 16:40:39,180 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-18 16:40:39,180 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-18 16:40:39,181 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-18 16:40:39,181 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-18 16:40:39,181 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-18 16:40:39,181 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-18 16:40:39,182 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-18 16:40:39,182 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-18 16:40:39,182 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-18 16:40:39,182 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-18 16:40:39,182 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-18 16:40:39,183 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-18 16:40:39,183 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-18 16:40:39,183 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-18 16:40:39,183 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-18 16:40:39,183 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-18 16:40:39,184 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-18 16:40:39,184 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-18 16:40:39,184 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-18 16:40:39,185 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-18 16:40:39,185 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-18 16:40:39,185 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-18 16:40:39,185 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-18 16:40:39,186 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-18 16:40:39,186 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-18 16:40:39,186 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-18 16:40:39,186 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-18 16:40:39,186 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/automizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50f60fa428d099767eedeaaecff58f84e68d960030ff43c7eae2dbdfbde6f992 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Generate GraphML witnesses -> false [2024-09-18 16:40:39,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-18 16:40:39,403 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-18 16:40:39,406 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-18 16:40:39,407 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-18 16:40:39,407 INFO L274 PluginConnector]: CDTParser initialized [2024-09-18 16:40:39,408 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c [2024-09-18 16:40:40,733 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-18 16:40:40,876 INFO L384 CDTParser]: Found 1 translation units. [2024-09-18 16:40:40,876 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c [2024-09-18 16:40:40,887 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/af947a3b0/f73086c76beb47d49a417d168ab8fd58/FLAG968653305 [2024-09-18 16:40:41,295 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/af947a3b0/f73086c76beb47d49a417d168ab8fd58 [2024-09-18 16:40:41,297 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-18 16:40:41,298 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-18 16:40:41,298 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-18 16:40:41,299 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-18 16:40:41,302 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-18 16:40:41,303 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 04:40:41" (1/1) ... [2024-09-18 16:40:41,304 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24b36d1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:40:41, skipping insertion in model container [2024-09-18 16:40:41,304 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 04:40:41" (1/1) ... [2024-09-18 16:40:41,316 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-18 16:40:41,436 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c[947,960] [2024-09-18 16:40:41,439 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-18 16:40:41,448 INFO L200 MainTranslator]: Completed pre-run [2024-09-18 16:40:41,458 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c[947,960] [2024-09-18 16:40:41,458 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-18 16:40:41,469 INFO L204 MainTranslator]: Completed translation [2024-09-18 16:40:41,469 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:40:41 WrapperNode [2024-09-18 16:40:41,469 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-18 16:40:41,470 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-18 16:40:41,470 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-18 16:40:41,471 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-18 16:40:41,475 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:40:41" (1/1) ... [2024-09-18 16:40:41,479 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:40:41" (1/1) ... [2024-09-18 16:40:41,483 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-18 16:40:41,484 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-18 16:40:41,484 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-18 16:40:41,484 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-18 16:40:41,484 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-18 16:40:41,495 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:40:41" (1/1) ... [2024-09-18 16:40:41,495 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:40:41" (1/1) ... [2024-09-18 16:40:41,496 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:40:41" (1/1) ... [2024-09-18 16:40:41,504 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]. [2024-09-18 16:40:41,504 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:40:41" (1/1) ... [2024-09-18 16:40:41,504 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:40:41" (1/1) ... [2024-09-18 16:40:41,506 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:40:41" (1/1) ... [2024-09-18 16:40:41,507 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:40:41" (1/1) ... [2024-09-18 16:40:41,507 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:40:41" (1/1) ... [2024-09-18 16:40:41,508 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:40:41" (1/1) ... [2024-09-18 16:40:41,509 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-18 16:40:41,509 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-18 16:40:41,510 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-18 16:40:41,510 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-18 16:40:41,510 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:40:41" (1/1) ... [2024-09-18 16:40:41,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-18 16:40:41,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-18 16:40:41,535 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) [2024-09-18 16:40:41,537 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 [2024-09-18 16:40:41,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-18 16:40:41,574 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-18 16:40:41,574 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-18 16:40:41,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-18 16:40:41,575 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2024-09-18 16:40:41,575 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2024-09-18 16:40:41,575 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2024-09-18 16:40:41,575 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2024-09-18 16:40:41,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-18 16:40:41,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-18 16:40:41,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-18 16:40:41,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-18 16:40:41,630 INFO L242 CfgBuilder]: Building ICFG [2024-09-18 16:40:41,632 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-18 16:40:41,782 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-09-18 16:40:41,783 INFO L291 CfgBuilder]: Performing block encoding [2024-09-18 16:40:41,806 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-18 16:40:41,825 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-18 16:40:41,826 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 04:40:41 BoogieIcfgContainer [2024-09-18 16:40:41,826 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-18 16:40:41,828 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-18 16:40:41,828 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-18 16:40:41,832 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-18 16:40:41,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 04:40:41" (1/3) ... [2024-09-18 16:40:41,834 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74b2920d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 04:40:41, skipping insertion in model container [2024-09-18 16:40:41,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:40:41" (2/3) ... [2024-09-18 16:40:41,835 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74b2920d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 04:40:41, skipping insertion in model container [2024-09-18 16:40:41,836 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 04:40:41" (3/3) ... [2024-09-18 16:40:41,838 INFO L112 eAbstractionObserver]: Analyzing ICFG fibo_2calls_8-1.c [2024-09-18 16:40:41,853 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-18 16:40:41,854 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-09-18 16:40:41,900 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-18 16:40:41,906 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;@6f0cd5e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-18 16:40:41,906 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-18 16:40:41,909 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 20 states have internal predecessors, (25), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-18 16:40:41,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-09-18 16:40:41,915 INFO L208 NwaCegarLoop]: Found error trace [2024-09-18 16:40:41,915 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-18 16:40:41,916 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-18 16:40:41,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:40:41,920 INFO L85 PathProgramCache]: Analyzing trace with hash -685851838, now seen corresponding path program 1 times [2024-09-18 16:40:41,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-18 16:40:41,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094899215] [2024-09-18 16:40:41,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-18 16:40:41,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-18 16:40:42,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:42,127 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-18 16:40:42,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:42,140 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-18 16:40:42,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:42,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-18 16:40:42,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-18 16:40:42,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094899215] [2024-09-18 16:40:42,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094899215] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-18 16:40:42,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-18 16:40:42,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-18 16:40:42,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12845612] [2024-09-18 16:40:42,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-18 16:40:42,212 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-18 16:40:42,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-18 16:40:42,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-18 16:40:42,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-18 16:40:42,235 INFO L87 Difference]: Start difference. First operand has 32 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 20 states have internal predecessors, (25), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-18 16:40:42,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-18 16:40:42,299 INFO L93 Difference]: Finished difference Result 44 states and 55 transitions. [2024-09-18 16:40:42,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-18 16:40:42,301 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 [2024-09-18 16:40:42,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-18 16:40:42,306 INFO L225 Difference]: With dead ends: 44 [2024-09-18 16:40:42,307 INFO L226 Difference]: Without dead ends: 32 [2024-09-18 16:40:42,309 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 [2024-09-18 16:40:42,311 INFO L434 NwaCegarLoop]: 31 mSDtfsCounter, 10 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-18 16:40:42,312 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 103 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-18 16:40:42,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-09-18 16:40:42,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2024-09-18 16:40:42,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 19 states have internal predecessors, (22), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-09-18 16:40:42,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2024-09-18 16:40:42,341 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 13 [2024-09-18 16:40:42,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-18 16:40:42,342 INFO L474 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2024-09-18 16:40:42,342 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) [2024-09-18 16:40:42,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:40:42,343 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2024-09-18 16:40:42,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-09-18 16:40:42,344 INFO L208 NwaCegarLoop]: Found error trace [2024-09-18 16:40:42,344 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-18 16:40:42,344 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-18 16:40:42,344 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-18 16:40:42,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:40:42,345 INFO L85 PathProgramCache]: Analyzing trace with hash 924954813, now seen corresponding path program 1 times [2024-09-18 16:40:42,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-18 16:40:42,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868953299] [2024-09-18 16:40:42,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-18 16:40:42,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-18 16:40:42,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:42,377 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-18 16:40:42,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:42,381 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-18 16:40:42,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:42,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-18 16:40:42,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-18 16:40:42,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868953299] [2024-09-18 16:40:42,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868953299] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-18 16:40:42,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-18 16:40:42,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-18 16:40:42,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624324496] [2024-09-18 16:40:42,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-18 16:40:42,410 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-18 16:40:42,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-18 16:40:42,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-18 16:40:42,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-18 16:40:42,411 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-18 16:40:42,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-18 16:40:42,455 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2024-09-18 16:40:42,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-18 16:40:42,456 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 [2024-09-18 16:40:42,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-18 16:40:42,456 INFO L225 Difference]: With dead ends: 36 [2024-09-18 16:40:42,457 INFO L226 Difference]: Without dead ends: 32 [2024-09-18 16:40:42,457 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 [2024-09-18 16:40:42,458 INFO L434 NwaCegarLoop]: 27 mSDtfsCounter, 7 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-18 16:40:42,458 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 88 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-18 16:40:42,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-09-18 16:40:42,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2024-09-18 16:40:42,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 19 states have internal predecessors, (22), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-09-18 16:40:42,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2024-09-18 16:40:42,466 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 14 [2024-09-18 16:40:42,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-18 16:40:42,467 INFO L474 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2024-09-18 16:40:42,467 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) [2024-09-18 16:40:42,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:40:42,468 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2024-09-18 16:40:42,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-09-18 16:40:42,469 INFO L208 NwaCegarLoop]: Found error trace [2024-09-18 16:40:42,469 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-18 16:40:42,469 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-18 16:40:42,469 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-18 16:40:42,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:40:42,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1782416332, now seen corresponding path program 1 times [2024-09-18 16:40:42,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-18 16:40:42,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172581201] [2024-09-18 16:40:42,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-18 16:40:42,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-18 16:40:42,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:42,521 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-18 16:40:42,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:42,526 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-18 16:40:42,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:42,583 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:42,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:42,619 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-09-18 16:40:42,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:42,628 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-18 16:40:42,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-18 16:40:42,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172581201] [2024-09-18 16:40:42,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172581201] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-18 16:40:42,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532513701] [2024-09-18 16:40:42,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-18 16:40:42,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-18 16:40:42,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-18 16:40:42,635 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) [2024-09-18 16:40:42,638 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-18 16:40:42,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:42,688 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-18 16:40:42,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-18 16:40:42,769 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-18 16:40:42,769 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-18 16:40:42,972 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-18 16:40:42,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532513701] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-18 16:40:42,972 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-18 16:40:42,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 13 [2024-09-18 16:40:42,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915593717] [2024-09-18 16:40:42,972 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-18 16:40:42,973 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-18 16:40:42,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-18 16:40:42,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-18 16:40:42,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-09-18 16:40:42,974 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand has 13 states, 10 states have (on average 3.2) internal successors, (32), 13 states have internal predecessors, (32), 8 states have call successors, (10), 1 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 8 states have call successors, (9) [2024-09-18 16:40:43,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-18 16:40:43,148 INFO L93 Difference]: Finished difference Result 58 states and 78 transitions. [2024-09-18 16:40:43,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-18 16:40:43,149 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 3.2) internal successors, (32), 13 states have internal predecessors, (32), 8 states have call successors, (10), 1 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 8 states have call successors, (9) Word has length 26 [2024-09-18 16:40:43,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-18 16:40:43,150 INFO L225 Difference]: With dead ends: 58 [2024-09-18 16:40:43,150 INFO L226 Difference]: Without dead ends: 34 [2024-09-18 16:40:43,150 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 53 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-09-18 16:40:43,151 INFO L434 NwaCegarLoop]: 23 mSDtfsCounter, 25 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-18 16:40:43,151 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 160 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-18 16:40:43,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-09-18 16:40:43,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2024-09-18 16:40:43,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 21 states have internal predecessors, (23), 7 states have call successors, (7), 4 states have call predecessors, (7), 5 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2024-09-18 16:40:43,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2024-09-18 16:40:43,157 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 26 [2024-09-18 16:40:43,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-18 16:40:43,157 INFO L474 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2024-09-18 16:40:43,158 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 3.2) internal successors, (32), 13 states have internal predecessors, (32), 8 states have call successors, (10), 1 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 8 states have call successors, (9) [2024-09-18 16:40:43,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:40:43,158 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2024-09-18 16:40:43,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-09-18 16:40:43,159 INFO L208 NwaCegarLoop]: Found error trace [2024-09-18 16:40:43,159 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-18 16:40:43,170 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-18 16:40:43,363 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 [2024-09-18 16:40:43,364 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-18 16:40:43,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:40:43,364 INFO L85 PathProgramCache]: Analyzing trace with hash -836643613, now seen corresponding path program 1 times [2024-09-18 16:40:43,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-18 16:40:43,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836652841] [2024-09-18 16:40:43,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-18 16:40:43,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-18 16:40:43,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:43,391 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-18 16:40:43,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:43,393 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-18 16:40:43,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:43,465 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:43,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:43,494 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:40:43,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:43,500 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-18 16:40:43,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-18 16:40:43,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836652841] [2024-09-18 16:40:43,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836652841] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-18 16:40:43,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1413021093] [2024-09-18 16:40:43,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-18 16:40:43,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-18 16:40:43,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-18 16:40:43,505 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) [2024-09-18 16:40:43,506 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-18 16:40:43,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:43,536 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-18 16:40:43,537 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-18 16:40:43,573 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-18 16:40:43,573 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-18 16:40:43,716 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-18 16:40:43,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1413021093] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-18 16:40:43,717 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-18 16:40:43,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 13 [2024-09-18 16:40:43,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473286051] [2024-09-18 16:40:43,720 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-18 16:40:43,720 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-18 16:40:43,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-18 16:40:43,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-18 16:40:43,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-09-18 16:40:43,721 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand has 13 states, 11 states have (on average 2.909090909090909) internal successors, (32), 13 states have internal predecessors, (32), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-18 16:40:43,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-18 16:40:43,874 INFO L93 Difference]: Finished difference Result 56 states and 77 transitions. [2024-09-18 16:40:43,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-18 16:40:43,875 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 2.909090909090909) internal successors, (32), 13 states have internal predecessors, (32), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Word has length 27 [2024-09-18 16:40:43,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-18 16:40:43,876 INFO L225 Difference]: With dead ends: 56 [2024-09-18 16:40:43,876 INFO L226 Difference]: Without dead ends: 52 [2024-09-18 16:40:43,877 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 55 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-09-18 16:40:43,877 INFO L434 NwaCegarLoop]: 24 mSDtfsCounter, 32 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-18 16:40:43,878 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 182 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-18 16:40:43,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-09-18 16:40:43,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2024-09-18 16:40:43,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 33 states have internal predecessors, (39), 11 states have call successors, (11), 6 states have call predecessors, (11), 7 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18) [2024-09-18 16:40:43,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 68 transitions. [2024-09-18 16:40:43,886 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 68 transitions. Word has length 27 [2024-09-18 16:40:43,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-18 16:40:43,887 INFO L474 AbstractCegarLoop]: Abstraction has 50 states and 68 transitions. [2024-09-18 16:40:43,887 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 2.909090909090909) internal successors, (32), 13 states have internal predecessors, (32), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-18 16:40:43,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:40:43,887 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 68 transitions. [2024-09-18 16:40:43,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-09-18 16:40:43,888 INFO L208 NwaCegarLoop]: Found error trace [2024-09-18 16:40:43,888 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-18 16:40:43,901 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-18 16:40:44,092 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 [2024-09-18 16:40:44,093 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-18 16:40:44,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:40:44,093 INFO L85 PathProgramCache]: Analyzing trace with hash -925704228, now seen corresponding path program 1 times [2024-09-18 16:40:44,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-18 16:40:44,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527395673] [2024-09-18 16:40:44,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-18 16:40:44,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-18 16:40:44,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:44,116 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-18 16:40:44,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:44,121 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-18 16:40:44,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:44,138 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:44,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:44,158 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:44,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:44,170 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-09-18 16:40:44,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:44,172 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-18 16:40:44,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:44,173 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-18 16:40:44,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-18 16:40:44,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527395673] [2024-09-18 16:40:44,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527395673] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-18 16:40:44,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [956167649] [2024-09-18 16:40:44,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-18 16:40:44,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-18 16:40:44,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-18 16:40:44,176 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) [2024-09-18 16:40:44,176 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-18 16:40:44,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:44,212 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-18 16:40:44,213 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-18 16:40:44,281 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-18 16:40:44,282 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-18 16:40:44,549 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-18 16:40:44,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [956167649] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-18 16:40:44,550 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-18 16:40:44,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 9] total 15 [2024-09-18 16:40:44,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635919698] [2024-09-18 16:40:44,550 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-18 16:40:44,551 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-18 16:40:44,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-18 16:40:44,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-18 16:40:44,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-09-18 16:40:44,552 INFO L87 Difference]: Start difference. First operand 50 states and 68 transitions. Second operand has 15 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 15 states have internal predecessors, (47), 11 states have call successors, (15), 1 states have call predecessors, (15), 5 states have return successors, (14), 4 states have call predecessors, (14), 11 states have call successors, (14) [2024-09-18 16:40:44,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-18 16:40:44,762 INFO L93 Difference]: Finished difference Result 112 states and 180 transitions. [2024-09-18 16:40:44,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-18 16:40:44,763 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 15 states have internal predecessors, (47), 11 states have call successors, (15), 1 states have call predecessors, (15), 5 states have return successors, (14), 4 states have call predecessors, (14), 11 states have call successors, (14) Word has length 39 [2024-09-18 16:40:44,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-18 16:40:44,764 INFO L225 Difference]: With dead ends: 112 [2024-09-18 16:40:44,764 INFO L226 Difference]: Without dead ends: 68 [2024-09-18 16:40:44,765 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 84 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2024-09-18 16:40:44,765 INFO L434 NwaCegarLoop]: 23 mSDtfsCounter, 38 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-18 16:40:44,766 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 200 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-18 16:40:44,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-09-18 16:40:44,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2024-09-18 16:40:44,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 41 states have (on average 1.2439024390243902) internal successors, (51), 44 states have internal predecessors, (51), 14 states have call successors, (14), 7 states have call predecessors, (14), 10 states have return successors, (30), 14 states have call predecessors, (30), 13 states have call successors, (30) [2024-09-18 16:40:44,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 95 transitions. [2024-09-18 16:40:44,778 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 95 transitions. Word has length 39 [2024-09-18 16:40:44,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-18 16:40:44,778 INFO L474 AbstractCegarLoop]: Abstraction has 66 states and 95 transitions. [2024-09-18 16:40:44,779 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 15 states have internal predecessors, (47), 11 states have call successors, (15), 1 states have call predecessors, (15), 5 states have return successors, (14), 4 states have call predecessors, (14), 11 states have call successors, (14) [2024-09-18 16:40:44,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:40:44,779 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 95 transitions. [2024-09-18 16:40:44,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-09-18 16:40:44,780 INFO L208 NwaCegarLoop]: Found error trace [2024-09-18 16:40:44,780 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-18 16:40:44,796 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-18 16:40:44,981 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 [2024-09-18 16:40:44,981 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-18 16:40:44,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:40:44,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1261961157, now seen corresponding path program 1 times [2024-09-18 16:40:44,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-18 16:40:44,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031552996] [2024-09-18 16:40:44,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-18 16:40:44,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-18 16:40:44,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:45,008 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-18 16:40:45,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:45,011 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-18 16:40:45,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:45,033 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:45,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:45,069 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:45,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:45,073 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:40:45,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:45,076 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:40:45,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:45,089 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-09-18 16:40:45,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-18 16:40:45,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031552996] [2024-09-18 16:40:45,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031552996] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-18 16:40:45,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [749912518] [2024-09-18 16:40:45,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-18 16:40:45,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-18 16:40:45,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-18 16:40:45,094 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) [2024-09-18 16:40:45,095 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-18 16:40:45,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:45,137 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-18 16:40:45,139 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-18 16:40:45,206 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-18 16:40:45,206 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-18 16:40:45,545 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-18 16:40:45,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [749912518] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-18 16:40:45,545 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-18 16:40:45,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9] total 18 [2024-09-18 16:40:45,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785072124] [2024-09-18 16:40:45,545 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-18 16:40:45,546 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-18 16:40:45,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-18 16:40:45,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-18 16:40:45,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2024-09-18 16:40:45,547 INFO L87 Difference]: Start difference. First operand 66 states and 95 transitions. Second operand has 18 states, 16 states have (on average 3.125) internal successors, (50), 18 states have internal predecessors, (50), 11 states have call successors, (15), 1 states have call predecessors, (15), 7 states have return successors, (14), 7 states have call predecessors, (14), 11 states have call successors, (14) [2024-09-18 16:40:45,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-18 16:40:45,884 INFO L93 Difference]: Finished difference Result 182 states and 328 transitions. [2024-09-18 16:40:45,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-18 16:40:45,885 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 3.125) internal successors, (50), 18 states have internal predecessors, (50), 11 states have call successors, (15), 1 states have call predecessors, (15), 7 states have return successors, (14), 7 states have call predecessors, (14), 11 states have call successors, (14) Word has length 40 [2024-09-18 16:40:45,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-18 16:40:45,887 INFO L225 Difference]: With dead ends: 182 [2024-09-18 16:40:45,887 INFO L226 Difference]: Without dead ends: 122 [2024-09-18 16:40:45,889 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 86 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=447, Unknown=0, NotChecked=0, Total=552 [2024-09-18 16:40:45,889 INFO L434 NwaCegarLoop]: 35 mSDtfsCounter, 32 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-18 16:40:45,889 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 343 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-18 16:40:45,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-09-18 16:40:45,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 103. [2024-09-18 16:40:45,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 64 states have (on average 1.21875) internal successors, (78), 67 states have internal predecessors, (78), 23 states have call successors, (23), 9 states have call predecessors, (23), 15 states have return successors, (64), 26 states have call predecessors, (64), 22 states have call successors, (64) [2024-09-18 16:40:45,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 165 transitions. [2024-09-18 16:40:45,914 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 165 transitions. Word has length 40 [2024-09-18 16:40:45,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-18 16:40:45,914 INFO L474 AbstractCegarLoop]: Abstraction has 103 states and 165 transitions. [2024-09-18 16:40:45,914 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 3.125) internal successors, (50), 18 states have internal predecessors, (50), 11 states have call successors, (15), 1 states have call predecessors, (15), 7 states have return successors, (14), 7 states have call predecessors, (14), 11 states have call successors, (14) [2024-09-18 16:40:45,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:40:45,915 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 165 transitions. [2024-09-18 16:40:45,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-09-18 16:40:45,917 INFO L208 NwaCegarLoop]: Found error trace [2024-09-18 16:40:45,917 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-18 16:40:45,932 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-18 16:40:46,121 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 [2024-09-18 16:40:46,122 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-18 16:40:46,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:40:46,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1624375296, now seen corresponding path program 1 times [2024-09-18 16:40:46,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-18 16:40:46,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934063677] [2024-09-18 16:40:46,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-18 16:40:46,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-18 16:40:46,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:46,162 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-18 16:40:46,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:46,164 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-18 16:40:46,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:46,184 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:46,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:46,205 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:46,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:46,237 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:46,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:46,240 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:40:46,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:46,243 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:40:46,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:46,252 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-18 16:40:46,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:46,254 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-09-18 16:40:46,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-18 16:40:46,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934063677] [2024-09-18 16:40:46,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934063677] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-18 16:40:46,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [511780371] [2024-09-18 16:40:46,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-18 16:40:46,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-18 16:40:46,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-18 16:40:46,256 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) [2024-09-18 16:40:46,257 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-18 16:40:46,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:46,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-18 16:40:46,301 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-18 16:40:46,385 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 23 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-09-18 16:40:46,385 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-18 16:40:46,809 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 28 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-18 16:40:46,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [511780371] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-18 16:40:46,809 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-18 16:40:46,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 11] total 20 [2024-09-18 16:40:46,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067873652] [2024-09-18 16:40:46,810 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-18 16:40:46,810 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-09-18 16:40:46,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-18 16:40:46,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-09-18 16:40:46,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2024-09-18 16:40:46,812 INFO L87 Difference]: Start difference. First operand 103 states and 165 transitions. Second operand has 20 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 20 states have internal predecessors, (60), 14 states have call successors, (18), 1 states have call predecessors, (18), 8 states have return successors, (19), 8 states have call predecessors, (19), 14 states have call successors, (19) [2024-09-18 16:40:47,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-18 16:40:47,064 INFO L93 Difference]: Finished difference Result 252 states and 489 transitions. [2024-09-18 16:40:47,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-18 16:40:47,065 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 20 states have internal predecessors, (60), 14 states have call successors, (18), 1 states have call predecessors, (18), 8 states have return successors, (19), 8 states have call predecessors, (19), 14 states have call successors, (19) Word has length 54 [2024-09-18 16:40:47,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-18 16:40:47,067 INFO L225 Difference]: With dead ends: 252 [2024-09-18 16:40:47,067 INFO L226 Difference]: Without dead ends: 155 [2024-09-18 16:40:47,068 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 118 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=571, Unknown=0, NotChecked=0, Total=702 [2024-09-18 16:40:47,069 INFO L434 NwaCegarLoop]: 34 mSDtfsCounter, 41 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-18 16:40:47,069 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 256 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-18 16:40:47,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-09-18 16:40:47,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 112. [2024-09-18 16:40:47,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 71 states have (on average 1.2253521126760563) internal successors, (87), 72 states have internal predecessors, (87), 26 states have call successors, (26), 11 states have call predecessors, (26), 14 states have return successors, (67), 28 states have call predecessors, (67), 25 states have call successors, (67) [2024-09-18 16:40:47,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 180 transitions. [2024-09-18 16:40:47,087 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 180 transitions. Word has length 54 [2024-09-18 16:40:47,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-18 16:40:47,087 INFO L474 AbstractCegarLoop]: Abstraction has 112 states and 180 transitions. [2024-09-18 16:40:47,087 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 20 states have internal predecessors, (60), 14 states have call successors, (18), 1 states have call predecessors, (18), 8 states have return successors, (19), 8 states have call predecessors, (19), 14 states have call successors, (19) [2024-09-18 16:40:47,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:40:47,088 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 180 transitions. [2024-09-18 16:40:47,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-09-18 16:40:47,090 INFO L208 NwaCegarLoop]: Found error trace [2024-09-18 16:40:47,090 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-18 16:40:47,102 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-18 16:40:47,290 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 [2024-09-18 16:40:47,291 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-18 16:40:47,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:40:47,291 INFO L85 PathProgramCache]: Analyzing trace with hash -805611050, now seen corresponding path program 1 times [2024-09-18 16:40:47,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-18 16:40:47,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411927982] [2024-09-18 16:40:47,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-18 16:40:47,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-18 16:40:47,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:47,345 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-18 16:40:47,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:47,347 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-18 16:40:47,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:47,386 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:47,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:47,410 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:47,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:47,458 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:47,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:47,492 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:47,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:47,495 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:40:47,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:47,498 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:40:47,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:47,500 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-18 16:40:47,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:47,510 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-18 16:40:47,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:47,516 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:47,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:47,520 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:47,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:47,522 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:47,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:47,523 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:40:47,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:47,524 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:40:47,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:47,526 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-18 16:40:47,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:47,527 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 44 proven. 79 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-09-18 16:40:47,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-18 16:40:47,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411927982] [2024-09-18 16:40:47,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411927982] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-18 16:40:47,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1042802948] [2024-09-18 16:40:47,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-18 16:40:47,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-18 16:40:47,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-18 16:40:47,529 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) [2024-09-18 16:40:47,530 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-18 16:40:47,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:47,587 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-18 16:40:47,589 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-18 16:40:47,675 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 17 proven. 119 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-09-18 16:40:47,675 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-18 16:40:48,313 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 17 proven. 129 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-09-18 16:40:48,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1042802948] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-18 16:40:48,313 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-18 16:40:48,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 13] total 24 [2024-09-18 16:40:48,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821832710] [2024-09-18 16:40:48,314 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-18 16:40:48,314 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-18 16:40:48,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-18 16:40:48,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-18 16:40:48,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=464, Unknown=0, NotChecked=0, Total=552 [2024-09-18 16:40:48,315 INFO L87 Difference]: Start difference. First operand 112 states and 180 transitions. Second operand has 24 states, 22 states have (on average 3.4545454545454546) internal successors, (76), 24 states have internal predecessors, (76), 18 states have call successors, (25), 1 states have call predecessors, (25), 9 states have return successors, (28), 11 states have call predecessors, (28), 18 states have call successors, (28) [2024-09-18 16:40:48,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-18 16:40:48,742 INFO L93 Difference]: Finished difference Result 256 states and 494 transitions. [2024-09-18 16:40:48,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-18 16:40:48,742 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 3.4545454545454546) internal successors, (76), 24 states have internal predecessors, (76), 18 states have call successors, (25), 1 states have call predecessors, (25), 9 states have return successors, (28), 11 states have call predecessors, (28), 18 states have call successors, (28) Word has length 110 [2024-09-18 16:40:48,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-18 16:40:48,744 INFO L225 Difference]: With dead ends: 256 [2024-09-18 16:40:48,744 INFO L226 Difference]: Without dead ends: 108 [2024-09-18 16:40:48,745 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 235 SyntacticMatches, 5 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=221, Invalid=1039, Unknown=0, NotChecked=0, Total=1260 [2024-09-18 16:40:48,746 INFO L434 NwaCegarLoop]: 34 mSDtfsCounter, 59 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-18 16:40:48,746 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 365 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-18 16:40:48,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-09-18 16:40:48,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 91. [2024-09-18 16:40:48,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 59 states have (on average 1.1864406779661016) internal successors, (70), 60 states have internal predecessors, (70), 18 states have call successors, (18), 10 states have call predecessors, (18), 13 states have return successors, (39), 20 states have call predecessors, (39), 17 states have call successors, (39) [2024-09-18 16:40:48,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 127 transitions. [2024-09-18 16:40:48,758 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 127 transitions. Word has length 110 [2024-09-18 16:40:48,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-18 16:40:48,758 INFO L474 AbstractCegarLoop]: Abstraction has 91 states and 127 transitions. [2024-09-18 16:40:48,758 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 3.4545454545454546) internal successors, (76), 24 states have internal predecessors, (76), 18 states have call successors, (25), 1 states have call predecessors, (25), 9 states have return successors, (28), 11 states have call predecessors, (28), 18 states have call successors, (28) [2024-09-18 16:40:48,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:40:48,759 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 127 transitions. [2024-09-18 16:40:48,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-09-18 16:40:48,760 INFO L208 NwaCegarLoop]: Found error trace [2024-09-18 16:40:48,760 INFO L216 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 10, 9, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-18 16:40:48,772 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-09-18 16:40:48,964 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 [2024-09-18 16:40:48,965 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-18 16:40:48,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:40:48,965 INFO L85 PathProgramCache]: Analyzing trace with hash 222670340, now seen corresponding path program 1 times [2024-09-18 16:40:48,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-18 16:40:48,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908748025] [2024-09-18 16:40:48,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-18 16:40:48,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-18 16:40:48,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:49,058 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-18 16:40:49,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:49,059 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-18 16:40:49,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:49,128 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:49,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:49,194 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:49,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:49,228 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:49,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:49,275 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:49,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:49,332 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:49,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:49,335 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:40:49,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:49,338 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:40:49,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:49,342 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-18 16:40:49,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:49,363 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-18 16:40:49,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:49,371 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:49,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:49,375 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:49,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:49,377 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:40:49,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:49,378 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:40:49,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:49,380 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-18 16:40:49,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:49,389 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:49,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:49,393 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:49,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:49,396 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:49,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:49,397 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:40:49,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:49,398 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:40:49,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:49,400 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-18 16:40:49,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:49,402 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:49,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:49,403 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:40:49,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:49,405 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 71 proven. 160 refuted. 0 times theorem prover too weak. 434 trivial. 0 not checked. [2024-09-18 16:40:49,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-18 16:40:49,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908748025] [2024-09-18 16:40:49,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908748025] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-18 16:40:49,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1746528991] [2024-09-18 16:40:49,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-18 16:40:49,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-18 16:40:49,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-18 16:40:49,407 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) [2024-09-18 16:40:49,410 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-18 16:40:49,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:49,483 INFO L262 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-18 16:40:49,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-18 16:40:49,613 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 34 proven. 242 refuted. 0 times theorem prover too weak. 389 trivial. 0 not checked. [2024-09-18 16:40:49,613 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-18 16:40:50,631 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 34 proven. 258 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2024-09-18 16:40:50,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1746528991] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-18 16:40:50,632 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-18 16:40:50,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 15] total 26 [2024-09-18 16:40:50,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625940804] [2024-09-18 16:40:50,632 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-18 16:40:50,632 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-09-18 16:40:50,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-18 16:40:50,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-09-18 16:40:50,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=549, Unknown=0, NotChecked=0, Total=650 [2024-09-18 16:40:50,633 INFO L87 Difference]: Start difference. First operand 91 states and 127 transitions. Second operand has 26 states, 24 states have (on average 3.5) internal successors, (84), 26 states have internal predecessors, (84), 20 states have call successors, (28), 1 states have call predecessors, (28), 10 states have return successors, (33), 12 states have call predecessors, (33), 20 states have call successors, (33) [2024-09-18 16:40:51,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-18 16:40:51,064 INFO L93 Difference]: Finished difference Result 229 states and 395 transitions. [2024-09-18 16:40:51,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-09-18 16:40:51,065 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 3.5) internal successors, (84), 26 states have internal predecessors, (84), 20 states have call successors, (28), 1 states have call predecessors, (28), 10 states have return successors, (33), 12 states have call predecessors, (33), 20 states have call successors, (33) Word has length 164 [2024-09-18 16:40:51,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-18 16:40:51,066 INFO L225 Difference]: With dead ends: 229 [2024-09-18 16:40:51,066 INFO L226 Difference]: Without dead ends: 131 [2024-09-18 16:40:51,068 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 357 SyntacticMatches, 6 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=275, Invalid=1285, Unknown=0, NotChecked=0, Total=1560 [2024-09-18 16:40:51,068 INFO L434 NwaCegarLoop]: 36 mSDtfsCounter, 85 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-18 16:40:51,068 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 437 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-18 16:40:51,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-09-18 16:40:51,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 111. [2024-09-18 16:40:51,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 73 states have (on average 1.2191780821917808) internal successors, (89), 74 states have internal predecessors, (89), 22 states have call successors, (22), 13 states have call predecessors, (22), 15 states have return successors, (52), 23 states have call predecessors, (52), 21 states have call successors, (52) [2024-09-18 16:40:51,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 163 transitions. [2024-09-18 16:40:51,081 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 163 transitions. Word has length 164 [2024-09-18 16:40:51,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-18 16:40:51,081 INFO L474 AbstractCegarLoop]: Abstraction has 111 states and 163 transitions. [2024-09-18 16:40:51,081 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 3.5) internal successors, (84), 26 states have internal predecessors, (84), 20 states have call successors, (28), 1 states have call predecessors, (28), 10 states have return successors, (33), 12 states have call predecessors, (33), 20 states have call successors, (33) [2024-09-18 16:40:51,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:40:51,081 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 163 transitions. [2024-09-18 16:40:51,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2024-09-18 16:40:51,083 INFO L208 NwaCegarLoop]: Found error trace [2024-09-18 16:40:51,083 INFO L216 NwaCegarLoop]: trace histogram [17, 17, 16, 16, 13, 13, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-18 16:40:51,097 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-09-18 16:40:51,287 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 [2024-09-18 16:40:51,288 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-18 16:40:51,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:40:51,288 INFO L85 PathProgramCache]: Analyzing trace with hash 501832710, now seen corresponding path program 2 times [2024-09-18 16:40:51,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-18 16:40:51,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297981557] [2024-09-18 16:40:51,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-18 16:40:51,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-18 16:40:51,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:51,457 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-18 16:40:51,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:51,459 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-18 16:40:51,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:51,570 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:51,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:51,648 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:51,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:51,690 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:51,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:51,752 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:51,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:51,757 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:51,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:51,760 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:51,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:51,761 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:40:51,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:51,763 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:40:51,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:51,764 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-18 16:40:51,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:51,805 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:51,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:51,808 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:40:51,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:51,810 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-18 16:40:51,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:51,835 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:51,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:51,847 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:40:51,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:51,850 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-18 16:40:51,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:51,857 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:51,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:51,861 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:51,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:51,863 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:51,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:51,865 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:40:51,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:51,866 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:40:51,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:51,867 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-18 16:40:51,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:51,871 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:51,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:51,873 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:40:51,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:51,874 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-09-18 16:40:51,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:51,880 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:51,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:51,883 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:51,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:51,886 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:51,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:51,887 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:40:51,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:51,889 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:40:51,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:51,890 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-18 16:40:51,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:51,894 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:51,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:51,896 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:40:51,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:51,897 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 167 proven. 260 refuted. 0 times theorem prover too weak. 977 trivial. 0 not checked. [2024-09-18 16:40:51,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-18 16:40:51,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297981557] [2024-09-18 16:40:51,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297981557] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-18 16:40:51,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [317071748] [2024-09-18 16:40:51,899 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-18 16:40:51,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-18 16:40:51,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-18 16:40:51,901 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) [2024-09-18 16:40:51,905 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-18 16:40:52,008 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-18 16:40:52,008 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-18 16:40:52,010 INFO L262 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-18 16:40:52,013 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-18 16:40:52,129 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 77 proven. 418 refuted. 0 times theorem prover too weak. 909 trivial. 0 not checked. [2024-09-18 16:40:52,130 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-18 16:40:53,689 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 77 proven. 442 refuted. 0 times theorem prover too weak. 885 trivial. 0 not checked. [2024-09-18 16:40:53,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [317071748] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-18 16:40:53,689 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-18 16:40:53,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 17] total 27 [2024-09-18 16:40:53,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573788985] [2024-09-18 16:40:53,690 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-18 16:40:53,690 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-09-18 16:40:53,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-18 16:40:53,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-09-18 16:40:53,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=586, Unknown=0, NotChecked=0, Total=702 [2024-09-18 16:40:53,691 INFO L87 Difference]: Start difference. First operand 111 states and 163 transitions. Second operand has 27 states, 26 states have (on average 3.4615384615384617) internal successors, (90), 27 states have internal predecessors, (90), 21 states have call successors, (29), 1 states have call predecessors, (29), 11 states have return successors, (37), 14 states have call predecessors, (37), 21 states have call successors, (37) [2024-09-18 16:40:54,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-18 16:40:54,133 INFO L93 Difference]: Finished difference Result 254 states and 432 transitions. [2024-09-18 16:40:54,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-09-18 16:40:54,134 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 3.4615384615384617) internal successors, (90), 27 states have internal predecessors, (90), 21 states have call successors, (29), 1 states have call predecessors, (29), 11 states have return successors, (37), 14 states have call predecessors, (37), 21 states have call successors, (37) Word has length 231 [2024-09-18 16:40:54,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-18 16:40:54,136 INFO L225 Difference]: With dead ends: 254 [2024-09-18 16:40:54,136 INFO L226 Difference]: Without dead ends: 156 [2024-09-18 16:40:54,137 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 560 GetRequests, 510 SyntacticMatches, 8 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=339, Invalid=1553, Unknown=0, NotChecked=0, Total=1892 [2024-09-18 16:40:54,138 INFO L434 NwaCegarLoop]: 32 mSDtfsCounter, 64 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-18 16:40:54,138 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 336 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-18 16:40:54,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-09-18 16:40:54,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 143. [2024-09-18 16:40:54,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 97 states have (on average 1.2474226804123711) internal successors, (121), 96 states have internal predecessors, (121), 28 states have call successors, (28), 19 states have call predecessors, (28), 17 states have return successors, (72), 27 states have call predecessors, (72), 27 states have call successors, (72) [2024-09-18 16:40:54,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 221 transitions. [2024-09-18 16:40:54,179 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 221 transitions. Word has length 231 [2024-09-18 16:40:54,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-18 16:40:54,180 INFO L474 AbstractCegarLoop]: Abstraction has 143 states and 221 transitions. [2024-09-18 16:40:54,180 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 3.4615384615384617) internal successors, (90), 27 states have internal predecessors, (90), 21 states have call successors, (29), 1 states have call predecessors, (29), 11 states have return successors, (37), 14 states have call predecessors, (37), 21 states have call successors, (37) [2024-09-18 16:40:54,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:40:54,181 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 221 transitions. [2024-09-18 16:40:54,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2024-09-18 16:40:54,190 INFO L208 NwaCegarLoop]: Found error trace [2024-09-18 16:40:54,190 INFO L216 NwaCegarLoop]: trace histogram [40, 40, 37, 37, 31, 30, 20, 20, 20, 20, 20, 20, 20, 18, 18, 18, 18, 18, 18, 18, 12, 11, 10, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-18 16:40:54,206 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-09-18 16:40:54,390 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 [2024-09-18 16:40:54,391 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-18 16:40:54,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:40:54,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1090979059, now seen corresponding path program 3 times [2024-09-18 16:40:54,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-18 16:40:54,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250805424] [2024-09-18 16:40:54,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-18 16:40:54,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-18 16:40:54,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:54,734 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-18 16:40:54,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:54,737 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-18 16:40:54,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:54,981 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:54,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,114 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:55,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,177 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:55,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,216 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:55,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,245 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:55,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,250 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:55,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,251 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:55,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,252 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:40:55,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,253 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:40:55,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,256 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-18 16:40:55,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,313 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:55,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,316 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:40:55,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,318 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-18 16:40:55,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,341 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:55,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,354 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:40:55,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,357 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-18 16:40:55,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,365 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:55,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,370 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:55,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,372 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:55,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,374 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:55,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,377 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:40:55,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,378 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:40:55,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,379 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-18 16:40:55,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,380 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:55,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,382 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:40:55,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,383 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-18 16:40:55,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,385 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:55,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,386 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:40:55,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,387 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-09-18 16:40:55,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,395 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:55,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,400 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:55,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,402 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:55,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,404 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:55,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,405 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:40:55,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,406 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:40:55,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,406 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-18 16:40:55,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,408 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:55,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,409 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:40:55,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,411 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-18 16:40:55,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,413 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:55,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,415 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:55,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,416 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:40:55,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,418 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:40:55,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,441 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2024-09-18 16:40:55,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,477 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:55,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,496 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:55,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,504 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:55,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,510 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:55,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,513 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:55,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,516 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:55,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,517 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:40:55,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,518 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:40:55,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,520 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-18 16:40:55,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,522 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:55,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,523 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:40:55,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,524 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-18 16:40:55,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,526 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:55,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,527 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:40:55,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,528 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-18 16:40:55,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,537 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:55,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,546 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:55,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,550 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:55,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,552 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:55,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,553 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:40:55,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,554 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:40:55,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,556 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-18 16:40:55,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,558 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:55,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,559 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:40:55,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,561 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-18 16:40:55,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,563 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:55,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,564 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:40:55,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,565 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-09-18 16:40:55,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,569 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:55,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,571 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:55,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,573 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:40:55,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,574 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:40:55,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:55,578 INFO L134 CoverageAnalysis]: Checked inductivity of 8056 backedges. 302 proven. 934 refuted. 0 times theorem prover too weak. 6820 trivial. 0 not checked. [2024-09-18 16:40:55,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-18 16:40:55,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250805424] [2024-09-18 16:40:55,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250805424] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-18 16:40:55,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843540894] [2024-09-18 16:40:55,579 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-18 16:40:55,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-18 16:40:55,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-18 16:40:55,581 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) [2024-09-18 16:40:55,584 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-18 16:40:55,694 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2024-09-18 16:40:55,694 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-18 16:40:55,696 INFO L262 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-18 16:40:55,701 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-18 16:40:55,789 INFO L134 CoverageAnalysis]: Checked inductivity of 8056 backedges. 2122 proven. 34 refuted. 0 times theorem prover too weak. 5900 trivial. 0 not checked. [2024-09-18 16:40:55,792 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-18 16:40:57,465 INFO L134 CoverageAnalysis]: Checked inductivity of 8056 backedges. 1190 proven. 112 refuted. 0 times theorem prover too weak. 6754 trivial. 0 not checked. [2024-09-18 16:40:57,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843540894] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-18 16:40:57,465 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-18 16:40:57,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 13] total 23 [2024-09-18 16:40:57,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676012668] [2024-09-18 16:40:57,465 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-18 16:40:57,466 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-09-18 16:40:57,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-18 16:40:57,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-09-18 16:40:57,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2024-09-18 16:40:57,469 INFO L87 Difference]: Start difference. First operand 143 states and 221 transitions. Second operand has 23 states, 22 states have (on average 4.045454545454546) internal successors, (89), 23 states have internal predecessors, (89), 15 states have call successors, (30), 2 states have call predecessors, (30), 7 states have return successors, (34), 11 states have call predecessors, (34), 15 states have call successors, (34) [2024-09-18 16:40:57,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-18 16:40:57,708 INFO L93 Difference]: Finished difference Result 283 states and 456 transitions. [2024-09-18 16:40:57,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-18 16:40:57,709 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 4.045454545454546) internal successors, (89), 23 states have internal predecessors, (89), 15 states have call successors, (30), 2 states have call predecessors, (30), 7 states have return successors, (34), 11 states have call predecessors, (34), 15 states have call successors, (34) Word has length 530 [2024-09-18 16:40:57,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-18 16:40:57,711 INFO L225 Difference]: With dead ends: 283 [2024-09-18 16:40:57,711 INFO L226 Difference]: Without dead ends: 153 [2024-09-18 16:40:57,713 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1237 GetRequests, 1203 SyntacticMatches, 6 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=152, Invalid=718, Unknown=0, NotChecked=0, Total=870 [2024-09-18 16:40:57,714 INFO L434 NwaCegarLoop]: 28 mSDtfsCounter, 40 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-18 16:40:57,714 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 275 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-18 16:40:57,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-09-18 16:40:57,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 147. [2024-09-18 16:40:57,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 101 states have (on average 1.1584158415841583) internal successors, (117), 98 states have internal predecessors, (117), 28 states have call successors, (28), 21 states have call predecessors, (28), 17 states have return successors, (69), 27 states have call predecessors, (69), 27 states have call successors, (69) [2024-09-18 16:40:57,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 214 transitions. [2024-09-18 16:40:57,736 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 214 transitions. Word has length 530 [2024-09-18 16:40:57,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-18 16:40:57,737 INFO L474 AbstractCegarLoop]: Abstraction has 147 states and 214 transitions. [2024-09-18 16:40:57,737 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 4.045454545454546) internal successors, (89), 23 states have internal predecessors, (89), 15 states have call successors, (30), 2 states have call predecessors, (30), 7 states have return successors, (34), 11 states have call predecessors, (34), 15 states have call successors, (34) [2024-09-18 16:40:57,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:40:57,738 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 214 transitions. [2024-09-18 16:40:57,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2024-09-18 16:40:57,742 INFO L208 NwaCegarLoop]: Found error trace [2024-09-18 16:40:57,742 INFO L216 NwaCegarLoop]: trace histogram [31, 31, 26, 26, 24, 22, 15, 15, 15, 15, 15, 15, 15, 13, 13, 13, 13, 13, 13, 13, 11, 7, 7, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-18 16:40:57,762 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-18 16:40:57,942 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 [2024-09-18 16:40:57,943 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-18 16:40:57,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:40:57,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1175745416, now seen corresponding path program 4 times [2024-09-18 16:40:57,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-18 16:40:57,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862922553] [2024-09-18 16:40:57,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-18 16:40:57,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-18 16:40:57,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,186 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-18 16:40:58,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,188 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-18 16:40:58,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,413 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:58,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,566 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:58,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,644 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:58,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,693 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:58,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,717 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:58,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,722 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:58,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,723 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:58,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,724 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:40:58,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,725 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:40:58,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,726 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-18 16:40:58,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,760 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:58,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,762 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:40:58,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,764 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-18 16:40:58,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,770 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:58,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,772 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:58,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,773 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:40:58,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,774 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:40:58,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,775 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-18 16:40:58,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,788 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:58,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,792 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:58,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,795 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:58,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,797 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:58,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,798 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:40:58,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,799 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:40:58,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,800 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-18 16:40:58,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,802 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:58,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,802 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:40:58,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,805 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-18 16:40:58,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,808 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:58,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,809 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:58,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,810 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:40:58,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,811 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:40:58,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,812 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-09-18 16:40:58,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,847 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:58,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,877 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:58,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,903 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:58,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,915 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:40:58,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,918 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:40:58,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,920 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-18 16:40:58,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,924 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:58,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,925 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:40:58,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,926 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-18 16:40:58,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,935 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:58,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,942 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:58,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,946 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:58,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,949 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:58,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,953 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:40:58,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,957 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:40:58,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,959 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-18 16:40:58,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,960 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:58,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,961 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:40:58,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,962 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-18 16:40:58,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,965 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:58,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,967 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:40:58,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,968 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:40:58,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,969 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:40:58,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:40:58,971 INFO L134 CoverageAnalysis]: Checked inductivity of 4399 backedges. 542 proven. 693 refuted. 0 times theorem prover too weak. 3164 trivial. 0 not checked. [2024-09-18 16:40:58,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-18 16:40:58,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862922553] [2024-09-18 16:40:58,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862922553] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-18 16:40:58,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [48504784] [2024-09-18 16:40:58,972 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-18 16:40:58,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-18 16:40:58,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-18 16:40:58,974 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-18 16:40:58,979 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-18 16:40:59,116 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-18 16:40:59,116 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-18 16:40:59,118 INFO L262 TraceCheckSpWp]: Trace formula consists of 704 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-18 16:40:59,122 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-18 16:40:59,291 INFO L134 CoverageAnalysis]: Checked inductivity of 4399 backedges. 425 proven. 657 refuted. 0 times theorem prover too weak. 3317 trivial. 0 not checked. [2024-09-18 16:40:59,291 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-18 16:41:01,746 INFO L134 CoverageAnalysis]: Checked inductivity of 4399 backedges. 427 proven. 685 refuted. 0 times theorem prover too weak. 3287 trivial. 0 not checked. [2024-09-18 16:41:01,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [48504784] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-18 16:41:01,747 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-18 16:41:01,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 13, 19] total 37 [2024-09-18 16:41:01,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571748120] [2024-09-18 16:41:01,747 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-18 16:41:01,749 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-09-18 16:41:01,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-18 16:41:01,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-09-18 16:41:01,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=1138, Unknown=0, NotChecked=0, Total=1332 [2024-09-18 16:41:01,750 INFO L87 Difference]: Start difference. First operand 147 states and 214 transitions. Second operand has 37 states, 36 states have (on average 3.0) internal successors, (108), 37 states have internal predecessors, (108), 27 states have call successors, (36), 1 states have call predecessors, (36), 16 states have return successors, (47), 24 states have call predecessors, (47), 27 states have call successors, (47) [2024-09-18 16:41:02,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-18 16:41:02,490 INFO L93 Difference]: Finished difference Result 338 states and 610 transitions. [2024-09-18 16:41:02,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-09-18 16:41:02,491 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 3.0) internal successors, (108), 37 states have internal predecessors, (108), 27 states have call successors, (36), 1 states have call predecessors, (36), 16 states have return successors, (47), 24 states have call predecessors, (47), 27 states have call successors, (47) Word has length 395 [2024-09-18 16:41:02,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-18 16:41:02,493 INFO L225 Difference]: With dead ends: 338 [2024-09-18 16:41:02,493 INFO L226 Difference]: Without dead ends: 176 [2024-09-18 16:41:02,495 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 943 GetRequests, 882 SyntacticMatches, 9 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1008 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=426, Invalid=2436, Unknown=0, NotChecked=0, Total=2862 [2024-09-18 16:41:02,496 INFO L434 NwaCegarLoop]: 61 mSDtfsCounter, 64 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 1478 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 1546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-18 16:41:02,496 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 865 Invalid, 1546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1478 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-18 16:41:02,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-09-18 16:41:02,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 156. [2024-09-18 16:41:02,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 108 states have (on average 1.0740740740740742) internal successors, (116), 104 states have internal predecessors, (116), 30 states have call successors, (30), 24 states have call predecessors, (30), 17 states have return successors, (48), 27 states have call predecessors, (48), 29 states have call successors, (48) [2024-09-18 16:41:02,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 194 transitions. [2024-09-18 16:41:02,510 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 194 transitions. Word has length 395 [2024-09-18 16:41:02,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-18 16:41:02,510 INFO L474 AbstractCegarLoop]: Abstraction has 156 states and 194 transitions. [2024-09-18 16:41:02,511 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 3.0) internal successors, (108), 37 states have internal predecessors, (108), 27 states have call successors, (36), 1 states have call predecessors, (36), 16 states have return successors, (47), 24 states have call predecessors, (47), 27 states have call successors, (47) [2024-09-18 16:41:02,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:41:02,511 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 194 transitions. [2024-09-18 16:41:02,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2024-09-18 16:41:02,515 INFO L208 NwaCegarLoop]: Found error trace [2024-09-18 16:41:02,515 INFO L216 NwaCegarLoop]: trace histogram [32, 32, 31, 31, 26, 25, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 11, 9, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-18 16:41:02,532 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-09-18 16:41:02,716 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-09-18 16:41:02,716 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-18 16:41:02,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:41:02,717 INFO L85 PathProgramCache]: Analyzing trace with hash 143598254, now seen corresponding path program 5 times [2024-09-18 16:41:02,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-18 16:41:02,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960309611] [2024-09-18 16:41:02,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-18 16:41:02,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-18 16:41:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:02,903 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-18 16:41:02,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:02,905 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-18 16:41:02,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,134 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:03,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,249 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:03,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,318 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:03,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,381 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:03,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,405 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:03,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,410 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:03,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,412 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:03,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,413 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:03,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,413 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:41:03,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,414 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-18 16:41:03,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,451 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:03,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,453 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:03,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,455 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-18 16:41:03,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,460 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:03,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,462 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:03,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,463 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:03,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,464 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:41:03,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,465 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-18 16:41:03,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,473 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:03,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,475 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:03,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,477 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:03,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,478 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:03,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,479 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:41:03,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,480 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-18 16:41:03,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,481 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:03,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,482 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:03,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,483 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-18 16:41:03,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,496 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:03,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,500 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:03,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,503 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:03,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,504 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:03,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,505 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:03,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,506 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:41:03,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,507 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-18 16:41:03,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,509 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:03,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,510 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:03,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,510 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-18 16:41:03,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,513 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:03,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,514 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:03,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,515 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:03,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,516 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:41:03,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,517 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-18 16:41:03,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,573 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:03,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,621 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:03,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,647 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:03,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,652 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:03,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,654 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:03,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,655 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:03,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,656 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:41:03,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,657 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-18 16:41:03,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,698 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:03,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,700 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:03,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,702 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-18 16:41:03,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,708 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:03,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,710 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:03,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,711 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:03,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,711 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:41:03,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,712 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-18 16:41:03,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,740 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:03,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,769 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:03,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,782 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:03,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,785 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:41:03,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:03,788 INFO L134 CoverageAnalysis]: Checked inductivity of 5369 backedges. 1060 proven. 718 refuted. 0 times theorem prover too weak. 3591 trivial. 0 not checked. [2024-09-18 16:41:03,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-18 16:41:03,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960309611] [2024-09-18 16:41:03,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960309611] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-18 16:41:03,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1147044163] [2024-09-18 16:41:03,789 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-18 16:41:03,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-18 16:41:03,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-18 16:41:03,793 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-18 16:41:03,797 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-18 16:41:03,980 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2024-09-18 16:41:03,980 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-18 16:41:03,983 INFO L262 TraceCheckSpWp]: Trace formula consists of 881 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-18 16:41:03,987 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-18 16:41:04,106 INFO L134 CoverageAnalysis]: Checked inductivity of 5369 backedges. 918 proven. 135 refuted. 0 times theorem prover too weak. 4316 trivial. 0 not checked. [2024-09-18 16:41:04,106 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-18 16:41:05,590 INFO L134 CoverageAnalysis]: Checked inductivity of 5369 backedges. 920 proven. 137 refuted. 0 times theorem prover too weak. 4312 trivial. 0 not checked. [2024-09-18 16:41:05,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1147044163] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-18 16:41:05,590 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-18 16:41:05,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 13, 15] total 41 [2024-09-18 16:41:05,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582117643] [2024-09-18 16:41:05,591 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-18 16:41:05,591 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-09-18 16:41:05,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-18 16:41:05,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-09-18 16:41:05,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=1407, Unknown=0, NotChecked=0, Total=1640 [2024-09-18 16:41:05,593 INFO L87 Difference]: Start difference. First operand 156 states and 194 transitions. Second operand has 41 states, 40 states have (on average 2.775) internal successors, (111), 41 states have internal predecessors, (111), 23 states have call successors, (37), 1 states have call predecessors, (37), 16 states have return successors, (46), 29 states have call predecessors, (46), 23 states have call successors, (46) [2024-09-18 16:41:06,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-18 16:41:06,096 INFO L93 Difference]: Finished difference Result 337 states and 445 transitions. [2024-09-18 16:41:06,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-09-18 16:41:06,096 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 2.775) internal successors, (111), 41 states have internal predecessors, (111), 23 states have call successors, (37), 1 states have call predecessors, (37), 16 states have return successors, (46), 29 states have call predecessors, (46), 23 states have call successors, (46) Word has length 436 [2024-09-18 16:41:06,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-18 16:41:06,102 INFO L225 Difference]: With dead ends: 337 [2024-09-18 16:41:06,102 INFO L226 Difference]: Without dead ends: 194 [2024-09-18 16:41:06,104 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1040 GetRequests, 981 SyntacticMatches, 7 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1131 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=416, Invalid=2446, Unknown=0, NotChecked=0, Total=2862 [2024-09-18 16:41:06,109 INFO L434 NwaCegarLoop]: 56 mSDtfsCounter, 94 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-18 16:41:06,109 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 783 Invalid, 895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-18 16:41:06,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-09-18 16:41:06,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 163. [2024-09-18 16:41:06,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 113 states have (on average 1.0353982300884956) internal successors, (117), 111 states have internal predecessors, (117), 33 states have call successors, (33), 26 states have call predecessors, (33), 16 states have return successors, (45), 25 states have call predecessors, (45), 32 states have call successors, (45) [2024-09-18 16:41:06,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 195 transitions. [2024-09-18 16:41:06,141 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 195 transitions. Word has length 436 [2024-09-18 16:41:06,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-18 16:41:06,141 INFO L474 AbstractCegarLoop]: Abstraction has 163 states and 195 transitions. [2024-09-18 16:41:06,141 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 2.775) internal successors, (111), 41 states have internal predecessors, (111), 23 states have call successors, (37), 1 states have call predecessors, (37), 16 states have return successors, (46), 29 states have call predecessors, (46), 23 states have call successors, (46) [2024-09-18 16:41:06,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:41:06,142 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 195 transitions. [2024-09-18 16:41:06,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2024-09-18 16:41:06,143 INFO L208 NwaCegarLoop]: Found error trace [2024-09-18 16:41:06,143 INFO L216 NwaCegarLoop]: trace histogram [29, 29, 28, 28, 23, 23, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 9, 9, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-18 16:41:06,159 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-09-18 16:41:06,343 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-18 16:41:06,344 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-18 16:41:06,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:41:06,344 INFO L85 PathProgramCache]: Analyzing trace with hash -47366488, now seen corresponding path program 6 times [2024-09-18 16:41:06,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-18 16:41:06,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253052715] [2024-09-18 16:41:06,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-18 16:41:06,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-18 16:41:06,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:06,682 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-18 16:41:06,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:06,684 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-18 16:41:06,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:06,949 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:06,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,054 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:07,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,126 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:07,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,171 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:07,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,193 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:07,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,196 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:07,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,198 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:07,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,199 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:07,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,200 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:41:07,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,200 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-18 16:41:07,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,236 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:07,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,238 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:07,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,240 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-18 16:41:07,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,244 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:07,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,246 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:07,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,246 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:07,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,247 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:41:07,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,248 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-18 16:41:07,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,255 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:07,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,257 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:07,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,259 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:07,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,262 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:07,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,263 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:41:07,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,264 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-18 16:41:07,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,266 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:07,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,267 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:07,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,268 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-18 16:41:07,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,279 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:07,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,284 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:07,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,286 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:07,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,288 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:07,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,289 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:07,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,289 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:41:07,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,290 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-18 16:41:07,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,292 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:07,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,293 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:07,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,295 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-18 16:41:07,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,297 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:07,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,299 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:07,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,299 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:07,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,300 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:41:07,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,301 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-18 16:41:07,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,380 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:07,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,417 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:07,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,447 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:07,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,474 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:07,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,486 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:07,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,488 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:41:07,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,490 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-18 16:41:07,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,493 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:07,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,494 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:07,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,495 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-18 16:41:07,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,499 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:07,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,500 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:07,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,501 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:07,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,502 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:41:07,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:07,503 INFO L134 CoverageAnalysis]: Checked inductivity of 4370 backedges. 726 proven. 662 refuted. 0 times theorem prover too weak. 2982 trivial. 0 not checked. [2024-09-18 16:41:07,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-18 16:41:07,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253052715] [2024-09-18 16:41:07,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253052715] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-18 16:41:07,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001133572] [2024-09-18 16:41:07,504 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-18 16:41:07,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-18 16:41:07,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-18 16:41:07,508 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-18 16:41:07,509 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-18 16:41:07,654 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2024-09-18 16:41:07,654 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-18 16:41:07,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-18 16:41:07,659 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-18 16:41:07,752 INFO L134 CoverageAnalysis]: Checked inductivity of 4370 backedges. 603 proven. 95 refuted. 0 times theorem prover too weak. 3672 trivial. 0 not checked. [2024-09-18 16:41:07,752 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-18 16:41:08,844 INFO L134 CoverageAnalysis]: Checked inductivity of 4370 backedges. 607 proven. 101 refuted. 0 times theorem prover too weak. 3662 trivial. 0 not checked. [2024-09-18 16:41:08,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1001133572] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-18 16:41:08,844 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-18 16:41:08,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 10, 13] total 36 [2024-09-18 16:41:08,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090023229] [2024-09-18 16:41:08,844 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-18 16:41:08,845 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-09-18 16:41:08,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-18 16:41:08,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-09-18 16:41:08,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=1077, Unknown=0, NotChecked=0, Total=1260 [2024-09-18 16:41:08,846 INFO L87 Difference]: Start difference. First operand 163 states and 195 transitions. Second operand has 36 states, 35 states have (on average 2.742857142857143) internal successors, (96), 36 states have internal predecessors, (96), 21 states have call successors, (32), 1 states have call predecessors, (32), 16 states have return successors, (41), 28 states have call predecessors, (41), 21 states have call successors, (41) [2024-09-18 16:41:09,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-18 16:41:09,455 INFO L93 Difference]: Finished difference Result 244 states and 295 transitions. [2024-09-18 16:41:09,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-09-18 16:41:09,456 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 2.742857142857143) internal successors, (96), 36 states have internal predecessors, (96), 21 states have call successors, (32), 1 states have call predecessors, (32), 16 states have return successors, (41), 28 states have call predecessors, (41), 21 states have call successors, (41) Word has length 395 [2024-09-18 16:41:09,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-18 16:41:09,458 INFO L225 Difference]: With dead ends: 244 [2024-09-18 16:41:09,458 INFO L226 Difference]: Without dead ends: 220 [2024-09-18 16:41:09,459 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 949 GetRequests, 889 SyntacticMatches, 6 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1042 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=442, Invalid=2638, Unknown=0, NotChecked=0, Total=3080 [2024-09-18 16:41:09,460 INFO L434 NwaCegarLoop]: 47 mSDtfsCounter, 125 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-18 16:41:09,460 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 604 Invalid, 981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-18 16:41:09,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-09-18 16:41:09,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 180. [2024-09-18 16:41:09,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 125 states have (on average 1.032) internal successors, (129), 123 states have internal predecessors, (129), 37 states have call successors, (37), 29 states have call predecessors, (37), 17 states have return successors, (46), 27 states have call predecessors, (46), 36 states have call successors, (46) [2024-09-18 16:41:09,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 212 transitions. [2024-09-18 16:41:09,475 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 212 transitions. Word has length 395 [2024-09-18 16:41:09,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-18 16:41:09,475 INFO L474 AbstractCegarLoop]: Abstraction has 180 states and 212 transitions. [2024-09-18 16:41:09,476 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 2.742857142857143) internal successors, (96), 36 states have internal predecessors, (96), 21 states have call successors, (32), 1 states have call predecessors, (32), 16 states have return successors, (41), 28 states have call predecessors, (41), 21 states have call successors, (41) [2024-09-18 16:41:09,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:41:09,476 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 212 transitions. [2024-09-18 16:41:09,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2024-09-18 16:41:09,477 INFO L208 NwaCegarLoop]: Found error trace [2024-09-18 16:41:09,478 INFO L216 NwaCegarLoop]: trace histogram [34, 34, 33, 33, 27, 27, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 11, 10, 7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-18 16:41:09,491 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-09-18 16:41:09,681 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-09-18 16:41:09,682 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-18 16:41:09,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:41:09,682 INFO L85 PathProgramCache]: Analyzing trace with hash -853718073, now seen corresponding path program 7 times [2024-09-18 16:41:09,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-18 16:41:09,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649009743] [2024-09-18 16:41:09,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-18 16:41:09,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-18 16:41:09,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:11,912 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-18 16:41:11,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:11,917 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-18 16:41:11,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:12,976 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:12,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:13,406 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:13,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:13,567 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:13,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:13,657 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:13,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:13,715 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:13,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:13,765 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:13,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:13,834 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:13,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:13,853 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:13,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:13,872 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:41:13,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:13,875 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-18 16:41:13,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:13,901 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:13,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:13,904 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:13,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:13,923 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-18 16:41:13,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:13,976 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:13,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:13,984 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:13,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:13,987 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:13,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:13,990 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:41:13,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:13,993 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-18 16:41:13,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,079 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:14,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,092 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:14,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,100 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:14,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,103 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:14,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,106 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:41:14,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,109 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-18 16:41:14,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,117 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:14,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,120 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:14,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,123 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-18 16:41:14,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,247 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:14,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,272 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:14,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,286 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:14,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,295 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:14,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,298 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:14,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,302 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:41:14,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,305 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-18 16:41:14,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,314 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:14,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,317 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:14,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,321 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-18 16:41:14,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,336 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:14,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,347 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:14,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,352 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:14,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,358 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:41:14,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,364 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-18 16:41:14,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,579 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:14,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,638 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:14,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,664 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:14,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,678 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:14,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,688 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:14,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,691 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:14,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,695 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:41:14,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,698 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-18 16:41:14,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,707 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:14,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,711 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:14,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,714 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-18 16:41:14,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,728 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:14,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,738 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:14,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,742 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:14,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,746 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:41:14,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,749 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-18 16:41:14,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,810 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:14,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,822 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:14,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,830 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:14,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,833 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:14,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,836 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:41:14,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,839 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-18 16:41:14,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,847 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:14,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,851 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:14,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:14,855 INFO L134 CoverageAnalysis]: Checked inductivity of 6082 backedges. 0 proven. 2033 refuted. 0 times theorem prover too weak. 4049 trivial. 0 not checked. [2024-09-18 16:41:14,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-18 16:41:14,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649009743] [2024-09-18 16:41:14,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649009743] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-18 16:41:14,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [216638388] [2024-09-18 16:41:14,855 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-18 16:41:14,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-18 16:41:14,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-18 16:41:14,857 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-18 16:41:14,859 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-18 16:41:15,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:15,107 INFO L262 TraceCheckSpWp]: Trace formula consists of 1047 conjuncts, 271 conjuncts are in the unsatisfiable core [2024-09-18 16:41:15,116 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-18 16:41:15,743 INFO L134 CoverageAnalysis]: Checked inductivity of 6082 backedges. 0 proven. 2033 refuted. 0 times theorem prover too weak. 4049 trivial. 0 not checked. [2024-09-18 16:41:15,743 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-18 16:41:17,518 INFO L134 CoverageAnalysis]: Checked inductivity of 6082 backedges. 0 proven. 2033 refuted. 0 times theorem prover too weak. 4049 trivial. 0 not checked. [2024-09-18 16:41:17,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [216638388] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-18 16:41:17,519 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-18 16:41:17,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40, 40] total 52 [2024-09-18 16:41:17,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543793541] [2024-09-18 16:41:17,519 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-18 16:41:17,520 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-09-18 16:41:17,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-18 16:41:17,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-09-18 16:41:17,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=2527, Unknown=0, NotChecked=0, Total=2652 [2024-09-18 16:41:17,521 INFO L87 Difference]: Start difference. First operand 180 states and 212 transitions. Second operand has 52 states, 52 states have (on average 1.2115384615384615) internal successors, (63), 27 states have internal predecessors, (63), 11 states have call successors, (15), 1 states have call predecessors, (15), 15 states have return successors, (36), 36 states have call predecessors, (36), 11 states have call successors, (36) [2024-09-18 16:41:18,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-18 16:41:18,071 INFO L93 Difference]: Finished difference Result 235 states and 297 transitions. [2024-09-18 16:41:18,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-09-18 16:41:18,072 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 1.2115384615384615) internal successors, (63), 27 states have internal predecessors, (63), 11 states have call successors, (15), 1 states have call predecessors, (15), 15 states have return successors, (36), 36 states have call predecessors, (36), 11 states have call successors, (36) Word has length 463 [2024-09-18 16:41:18,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-18 16:41:18,074 INFO L225 Difference]: With dead ends: 235 [2024-09-18 16:41:18,074 INFO L226 Difference]: Without dead ends: 228 [2024-09-18 16:41:18,076 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1198 GetRequests, 1148 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=125, Invalid=2527, Unknown=0, NotChecked=0, Total=2652 [2024-09-18 16:41:18,077 INFO L434 NwaCegarLoop]: 74 mSDtfsCounter, 0 mSDsluCounter, 2946 mSDsCounter, 0 mSdLazyCounter, 1617 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 3020 SdHoareTripleChecker+Invalid, 1617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-18 16:41:18,077 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 3020 Invalid, 1617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1617 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-18 16:41:18,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-09-18 16:41:18,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 223. [2024-09-18 16:41:18,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 151 states have (on average 1.0264900662251655) internal successors, (155), 149 states have internal predecessors, (155), 45 states have call successors, (45), 29 states have call predecessors, (45), 26 states have return successors, (85), 44 states have call predecessors, (85), 44 states have call successors, (85) [2024-09-18 16:41:18,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 285 transitions. [2024-09-18 16:41:18,102 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 285 transitions. Word has length 463 [2024-09-18 16:41:18,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-18 16:41:18,103 INFO L474 AbstractCegarLoop]: Abstraction has 223 states and 285 transitions. [2024-09-18 16:41:18,104 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 1.2115384615384615) internal successors, (63), 27 states have internal predecessors, (63), 11 states have call successors, (15), 1 states have call predecessors, (15), 15 states have return successors, (36), 36 states have call predecessors, (36), 11 states have call successors, (36) [2024-09-18 16:41:18,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:41:18,104 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 285 transitions. [2024-09-18 16:41:18,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2024-09-18 16:41:18,106 INFO L208 NwaCegarLoop]: Found error trace [2024-09-18 16:41:18,106 INFO L216 NwaCegarLoop]: trace histogram [34, 34, 33, 33, 29, 27, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 12, 11, 7, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-18 16:41:18,121 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-09-18 16:41:18,306 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-18 16:41:18,307 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-18 16:41:18,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:41:18,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1879272131, now seen corresponding path program 8 times [2024-09-18 16:41:18,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-18 16:41:18,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218015515] [2024-09-18 16:41:18,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-18 16:41:18,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-18 16:41:18,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:18,613 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-18 16:41:18,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:18,615 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-18 16:41:18,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:18,851 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:18,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:18,952 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:18,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,017 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:19,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,058 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:19,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,108 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:19,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,141 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:19,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,183 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:19,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,195 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:19,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,197 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:41:19,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,198 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-18 16:41:19,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,201 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:19,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,202 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:19,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,203 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-18 16:41:19,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,209 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:19,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,211 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:19,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,211 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:19,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,212 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:41:19,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,213 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-18 16:41:19,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,220 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:19,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,222 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:19,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,224 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:19,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,224 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,225 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:41:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,226 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-18 16:41:19,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,227 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:19,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,228 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:19,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,229 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-18 16:41:19,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,244 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:19,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,251 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:19,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,253 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:19,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,255 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:19,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,256 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:19,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,256 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:41:19,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,257 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-18 16:41:19,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,258 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:19,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,259 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:19,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,261 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-18 16:41:19,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,263 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:19,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,264 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:19,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,265 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:19,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,266 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:41:19,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,267 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-18 16:41:19,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,351 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:19,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,383 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:19,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,401 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:19,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,414 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:19,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,438 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:19,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,457 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:19,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,494 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-18 16:41:19,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,495 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-18 16:41:19,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,497 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:19,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,498 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:19,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,502 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-18 16:41:19,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,505 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:19,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,510 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:19,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,511 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:19,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,511 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:41:19,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,512 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-09-18 16:41:19,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,524 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:19,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,526 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:19,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,527 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:19,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,532 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:19,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,532 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:41:19,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,533 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-18 16:41:19,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,534 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:19,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,535 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:19,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:19,543 INFO L134 CoverageAnalysis]: Checked inductivity of 6137 backedges. 748 proven. 1131 refuted. 0 times theorem prover too weak. 4258 trivial. 0 not checked. [2024-09-18 16:41:19,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-18 16:41:19,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218015515] [2024-09-18 16:41:19,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218015515] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-18 16:41:19,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931183992] [2024-09-18 16:41:19,544 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-18 16:41:19,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-18 16:41:19,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-18 16:41:19,545 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-18 16:41:19,549 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-18 16:41:19,752 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-18 16:41:19,752 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-18 16:41:19,754 INFO L262 TraceCheckSpWp]: Trace formula consists of 1051 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-18 16:41:19,758 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-18 16:41:19,905 INFO L134 CoverageAnalysis]: Checked inductivity of 6137 backedges. 837 proven. 325 refuted. 0 times theorem prover too weak. 4975 trivial. 0 not checked. [2024-09-18 16:41:19,905 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-18 16:41:21,788 INFO L134 CoverageAnalysis]: Checked inductivity of 6137 backedges. 841 proven. 342 refuted. 0 times theorem prover too weak. 4954 trivial. 0 not checked. [2024-09-18 16:41:21,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1931183992] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-18 16:41:21,789 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-18 16:41:21,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 12, 17] total 38 [2024-09-18 16:41:21,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632784214] [2024-09-18 16:41:21,789 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-18 16:41:21,790 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-09-18 16:41:21,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-18 16:41:21,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-09-18 16:41:21,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=1215, Unknown=0, NotChecked=0, Total=1406 [2024-09-18 16:41:21,791 INFO L87 Difference]: Start difference. First operand 223 states and 285 transitions. Second operand has 38 states, 37 states have (on average 2.918918918918919) internal successors, (108), 38 states have internal predecessors, (108), 25 states have call successors, (35), 1 states have call predecessors, (35), 17 states have return successors, (47), 26 states have call predecessors, (47), 25 states have call successors, (47) [2024-09-18 16:41:22,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-18 16:41:22,516 INFO L93 Difference]: Finished difference Result 434 states and 588 transitions. [2024-09-18 16:41:22,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-09-18 16:41:22,517 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 2.918918918918919) internal successors, (108), 38 states have internal predecessors, (108), 25 states have call successors, (35), 1 states have call predecessors, (35), 17 states have return successors, (47), 26 states have call predecessors, (47), 25 states have call successors, (47) Word has length 465 [2024-09-18 16:41:22,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-18 16:41:22,519 INFO L225 Difference]: With dead ends: 434 [2024-09-18 16:41:22,519 INFO L226 Difference]: Without dead ends: 170 [2024-09-18 16:41:22,522 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1119 GetRequests, 1048 SyntacticMatches, 8 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1443 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=575, Invalid=3585, Unknown=0, NotChecked=0, Total=4160 [2024-09-18 16:41:22,522 INFO L434 NwaCegarLoop]: 46 mSDtfsCounter, 104 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 1179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-18 16:41:22,522 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 653 Invalid, 1179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1089 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-18 16:41:22,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-09-18 16:41:22,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 165. [2024-09-18 16:41:22,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 115 states have (on average 1.0347826086956522) internal successors, (119), 113 states have internal predecessors, (119), 33 states have call successors, (33), 27 states have call predecessors, (33), 16 states have return successors, (36), 24 states have call predecessors, (36), 32 states have call successors, (36) [2024-09-18 16:41:22,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 188 transitions. [2024-09-18 16:41:22,536 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 188 transitions. Word has length 465 [2024-09-18 16:41:22,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-18 16:41:22,537 INFO L474 AbstractCegarLoop]: Abstraction has 165 states and 188 transitions. [2024-09-18 16:41:22,537 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 2.918918918918919) internal successors, (108), 38 states have internal predecessors, (108), 25 states have call successors, (35), 1 states have call predecessors, (35), 17 states have return successors, (47), 26 states have call predecessors, (47), 25 states have call successors, (47) [2024-09-18 16:41:22,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:41:22,537 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 188 transitions. [2024-09-18 16:41:22,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2024-09-18 16:41:22,539 INFO L208 NwaCegarLoop]: Found error trace [2024-09-18 16:41:22,539 INFO L216 NwaCegarLoop]: trace histogram [40, 40, 37, 37, 31, 31, 20, 20, 20, 20, 20, 20, 20, 18, 18, 18, 18, 18, 18, 18, 13, 11, 9, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-18 16:41:22,556 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-09-18 16:41:22,743 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-18 16:41:22,743 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-18 16:41:22,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:41:22,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1544679608, now seen corresponding path program 9 times [2024-09-18 16:41:22,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-18 16:41:22,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259709430] [2024-09-18 16:41:22,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-18 16:41:22,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-18 16:41:22,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,037 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-18 16:41:23,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,038 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-18 16:41:23,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,272 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:23,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,421 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:23,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,512 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:23,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,573 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:23,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,616 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:23,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,636 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:23,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,640 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:23,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,641 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:23,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,642 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:23,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,642 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:41:23,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,643 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-18 16:41:23,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,674 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:23,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,677 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:23,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,678 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-18 16:41:23,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,683 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:23,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,684 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:23,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,685 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:23,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,686 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:41:23,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,687 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-18 16:41:23,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,693 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:23,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,696 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:23,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,697 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:23,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,698 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:23,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,698 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:41:23,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,699 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-18 16:41:23,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,700 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:23,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,701 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:23,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,701 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-18 16:41:23,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,769 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:23,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,796 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:23,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,820 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:23,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,831 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:23,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,833 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:41:23,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,834 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-18 16:41:23,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,837 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:23,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,838 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:23,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,838 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2024-09-18 16:41:23,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,845 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:23,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,849 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:23,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,851 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:23,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,852 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:23,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,853 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:23,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,853 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:41:23,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,854 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-18 16:41:23,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,855 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:23,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,856 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:23,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,856 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-18 16:41:23,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,858 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:23,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,860 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:23,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,861 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:23,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,861 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:41:23,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,862 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-09-18 16:41:23,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,874 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:23,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,881 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:23,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,885 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:23,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,887 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:23,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,889 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:23,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,890 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:23,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,890 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:41:23,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,891 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-18 16:41:23,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,892 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:23,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,893 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:23,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,894 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-18 16:41:23,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,896 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:23,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,897 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:23,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,898 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:23,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,899 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:41:23,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,899 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-18 16:41:23,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,903 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:23,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,905 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:23,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,907 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:23,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,908 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:23,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,909 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-18 16:41:23,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,910 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-18 16:41:23,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,911 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-18 16:41:23,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,912 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-18 16:41:23,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 16:41:23,913 INFO L134 CoverageAnalysis]: Checked inductivity of 8086 backedges. 575 proven. 1278 refuted. 0 times theorem prover too weak. 6233 trivial. 0 not checked. [2024-09-18 16:41:23,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-18 16:41:23,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259709430] [2024-09-18 16:41:23,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259709430] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-18 16:41:23,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1471919781] [2024-09-18 16:41:23,914 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-18 16:41:23,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-18 16:41:23,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-18 16:41:23,916 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-18 16:41:23,917 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-18 16:41:24,139 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 30 check-sat command(s) [2024-09-18 16:41:24,140 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-18 16:41:24,143 INFO L262 TraceCheckSpWp]: Trace formula consists of 1000 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-18 16:41:24,148 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-18 16:41:24,265 INFO L134 CoverageAnalysis]: Checked inductivity of 8086 backedges. 423 proven. 918 refuted. 0 times theorem prover too weak. 6745 trivial. 0 not checked. [2024-09-18 16:41:24,265 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-18 16:41:26,214 INFO L134 CoverageAnalysis]: Checked inductivity of 8086 backedges. 429 proven. 936 refuted. 0 times theorem prover too weak. 6721 trivial. 0 not checked. [2024-09-18 16:41:26,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1471919781] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-18 16:41:26,215 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-18 16:41:26,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 12, 17] total 36 [2024-09-18 16:41:26,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9282723] [2024-09-18 16:41:26,215 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-18 16:41:26,216 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-09-18 16:41:26,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-18 16:41:26,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-09-18 16:41:26,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=1075, Unknown=0, NotChecked=0, Total=1260 [2024-09-18 16:41:26,217 INFO L87 Difference]: Start difference. First operand 165 states and 188 transitions. Second operand has 36 states, 35 states have (on average 3.0285714285714285) internal successors, (106), 36 states have internal predecessors, (106), 24 states have call successors, (36), 1 states have call predecessors, (36), 16 states have return successors, (47), 26 states have call predecessors, (47), 24 states have call successors, (47) [2024-09-18 16:41:26,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-18 16:41:26,641 INFO L93 Difference]: Finished difference Result 276 states and 315 transitions. [2024-09-18 16:41:26,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-09-18 16:41:26,642 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 3.0285714285714285) internal successors, (106), 36 states have internal predecessors, (106), 24 states have call successors, (36), 1 states have call predecessors, (36), 16 states have return successors, (47), 26 states have call predecessors, (47), 24 states have call successors, (47) Word has length 531 [2024-09-18 16:41:26,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-18 16:41:26,643 INFO L225 Difference]: With dead ends: 276 [2024-09-18 16:41:26,643 INFO L226 Difference]: Without dead ends: 0 [2024-09-18 16:41:26,645 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1252 GetRequests, 1197 SyntacticMatches, 8 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 854 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=343, Invalid=2009, Unknown=0, NotChecked=0, Total=2352 [2024-09-18 16:41:26,645 INFO L434 NwaCegarLoop]: 37 mSDtfsCounter, 60 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 801 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-18 16:41:26,645 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 481 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 801 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-18 16:41:26,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-18 16:41:26,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-18 16:41:26,646 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) [2024-09-18 16:41:26,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-18 16:41:26,646 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 531 [2024-09-18 16:41:26,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-18 16:41:26,647 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-18 16:41:26,647 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 3.0285714285714285) internal successors, (106), 36 states have internal predecessors, (106), 24 states have call successors, (36), 1 states have call predecessors, (36), 16 states have return successors, (47), 26 states have call predecessors, (47), 24 states have call successors, (47) [2024-09-18 16:41:26,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 16:41:26,647 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-18 16:41:26,647 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-18 16:41:26,649 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-09-18 16:41:26,663 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-09-18 16:41:26,853 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-09-18 16:41:26,856 INFO L408 BasicCegarLoop]: Path program histogram: [9, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-18 16:41:26,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-09-18 16:41:37,776 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-18 16:41:37,796 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-09-18 16:41:37,808 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-09-18 16:41:37,810 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 04:41:37 BoogieIcfgContainer [2024-09-18 16:41:37,810 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-18 16:41:37,811 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-09-18 16:41:37,811 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-09-18 16:41:37,811 INFO L274 PluginConnector]: Witness Printer initialized [2024-09-18 16:41:37,812 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 04:40:41" (3/4) ... [2024-09-18 16:41:37,813 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-09-18 16:41:37,855 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml [2024-09-18 16:41:37,855 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-09-18 16:41:37,856 INFO L158 Benchmark]: Toolchain (without parser) took 56558.10ms. Allocated memory was 201.3MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 131.4MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 438.7MB. Max. memory is 16.1GB. [2024-09-18 16:41:37,856 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 119.5MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-18 16:41:37,856 INFO L158 Benchmark]: CACSL2BoogieTranslator took 171.30ms. Allocated memory is still 201.3MB. Free memory was 131.4MB in the beginning and 120.0MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-18 16:41:37,856 INFO L158 Benchmark]: Boogie Procedure Inliner took 13.52ms. Allocated memory is still 201.3MB. Free memory was 120.0MB in the beginning and 119.1MB in the end (delta: 859.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-18 16:41:37,857 INFO L158 Benchmark]: Boogie Preprocessor took 24.80ms. Allocated memory is still 201.3MB. Free memory was 119.1MB in the beginning and 117.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-18 16:41:37,857 INFO L158 Benchmark]: RCFGBuilder took 316.75ms. Allocated memory is still 201.3MB. Free memory was 117.5MB in the beginning and 170.8MB in the end (delta: -53.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-09-18 16:41:37,857 INFO L158 Benchmark]: TraceAbstraction took 55982.54ms. Allocated memory was 201.3MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 170.0MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2024-09-18 16:41:37,857 INFO L158 Benchmark]: Witness Printer took 44.60ms. Allocated memory is still 1.7GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-18 16:41:37,861 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 119.5MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 171.30ms. Allocated memory is still 201.3MB. Free memory was 131.4MB in the beginning and 120.0MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 13.52ms. Allocated memory is still 201.3MB. Free memory was 120.0MB in the beginning and 119.1MB in the end (delta: 859.2kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.80ms. Allocated memory is still 201.3MB. Free memory was 119.1MB in the beginning and 117.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 316.75ms. Allocated memory is still 201.3MB. Free memory was 117.5MB in the beginning and 170.8MB in the end (delta: -53.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 55982.54ms. Allocated memory was 201.3MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 170.0MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. * Witness Printer took 44.60ms. Allocated memory is still 1.7GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 41]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 45.0s, OverallIterations: 17, TraceHistogramMax: 40, PathProgramHistogramMax: 9, EmptinessCheckTime: 0.0s, AutomataDifference: 6.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 968 SdHoareTripleChecker+Valid, 4.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 880 mSDsluCounter, 9151 SdHoareTripleChecker+Invalid, 3.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8503 mSDsCounter, 823 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10152 IncrementalHoareTripleChecker+Invalid, 10975 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 823 mSolverCounterUnsat, 648 mSDtfsCounter, 10152 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9490 GetRequests, 8856 SyntacticMatches, 77 SemanticMatches, 557 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7096 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=223occurred in iteration=15, InterpolantAutomatonStates: 420, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 17 MinimizatonAttempts, 229 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 32.8s InterpolantComputationTime, 7839 NumberOfCodeBlocks, 7096 NumberOfCodeBlocksAsserted, 107 NumberOfCheckSat, 11698 ConstructedInterpolants, 0 QuantifiedInterpolants, 17744 SizeOfPredicates, 58 NumberOfNonLiveVariables, 7227 ConjunctsInSsa, 439 ConjunctsInUnsatCore, 47 InterpolantComputations, 2 PerfectInterpolantSequences, 116569/134787 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ProcedureContractResult [Line: 19]: Procedure Contract for fibo2 Derived contract for procedure fibo2. Ensures: (((((\old(n) < 6) || (\result == 13)) || (7 < \old(n))) && (((\result == 0) || (\old(n) == 1)) || (1 < \old(n)))) && (((\result == 1) || (\old(n) < 1)) || (3 < \old(n)))) - ProcedureContractResult [Line: 9]: Procedure Contract for fibo1 Derived contract for procedure fibo1. Ensures: (((((\old(n) < 2) || (\old(n) == 4)) || (5 < \old(n))) && (((\result == 0) || ((\old(n) == 1) && (\result == 1))) || (2 < \old(n)))) && ((((\old(n) == 1) && (\result == 1)) || (\old(n) < 1)) || (2 < \old(n)))) RESULT: Ultimate proved your program to be correct! [2024-09-18 16:41:37,881 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