./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 f1d7dc9d 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-f1d7dc9-m [2024-09-20 13:06:23,911 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 13:06:23,976 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-20 13:06:23,981 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 13:06:23,982 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 13:06:24,022 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 13:06:24,024 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 13:06:24,024 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 13:06:24,025 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 13:06:24,028 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 13:06:24,028 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 13:06:24,029 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 13:06:24,029 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 13:06:24,030 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 13:06:24,030 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 13:06:24,031 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 13:06:24,032 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 13:06:24,032 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 13:06:24,032 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-20 13:06:24,033 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 13:06:24,033 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 13:06:24,033 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 13:06:24,033 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 13:06:24,034 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 13:06:24,034 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 13:06:24,034 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 13:06:24,034 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 13:06:24,034 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 13:06:24,035 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 13:06:24,035 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 13:06:24,035 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 13:06:24,035 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 13:06:24,036 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:06:24,036 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 13:06:24,036 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 13:06:24,036 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 13:06:24,036 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-20 13:06:24,037 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-20 13:06:24,037 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 13:06:24,039 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 13:06:24,039 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 13:06:24,040 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 13:06:24,040 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50f60fa428d099767eedeaaecff58f84e68d960030ff43c7eae2dbdfbde6f992 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Generate GraphML witnesses -> false [2024-09-20 13:06:24,285 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 13:06:24,305 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 13:06:24,307 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 13:06:24,308 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 13:06:24,309 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 13:06:24,310 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c [2024-09-20 13:06:25,692 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 13:06:25,877 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 13:06:25,877 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c [2024-09-20 13:06:25,883 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/eba36a093/b306af4c35b940ba876e2ca95ac4d95d/FLAG76619e956 [2024-09-20 13:06:25,894 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/eba36a093/b306af4c35b940ba876e2ca95ac4d95d [2024-09-20 13:06:25,896 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 13:06:25,897 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-20 13:06:25,898 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 13:06:25,898 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 13:06:25,903 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 13:06:25,903 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:06:25" (1/1) ... [2024-09-20 13:06:25,904 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31c06c91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:06:25, skipping insertion in model container [2024-09-20 13:06:25,904 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:06:25" (1/1) ... [2024-09-20 13:06:25,923 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 13:06:26,052 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] [2024-09-20 13:06:26,057 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:06:26,066 INFO L200 MainTranslator]: Completed pre-run [2024-09-20 13:06:26,078 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] [2024-09-20 13:06:26,078 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:06:26,092 INFO L204 MainTranslator]: Completed translation [2024-09-20 13:06:26,093 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:06:26 WrapperNode [2024-09-20 13:06:26,093 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 13:06:26,094 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-20 13:06:26,094 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-20 13:06:26,095 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-20 13:06:26,101 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:06:26" (1/1) ... [2024-09-20 13:06:26,107 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:06:26" (1/1) ... [2024-09-20 13:06:26,114 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-20 13:06:26,114 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-20 13:06:26,115 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 13:06:26,115 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 13:06:26,118 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 13:06:26,130 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:06:26" (1/1) ... [2024-09-20 13:06:26,130 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:06:26" (1/1) ... [2024-09-20 13:06:26,132 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:06:26" (1/1) ... [2024-09-20 13:06:26,142 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]. [2024-09-20 13:06:26,142 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:06:26" (1/1) ... [2024-09-20 13:06:26,142 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:06:26" (1/1) ... [2024-09-20 13:06:26,144 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:06:26" (1/1) ... [2024-09-20 13:06:26,146 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:06:26" (1/1) ... [2024-09-20 13:06:26,146 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:06:26" (1/1) ... [2024-09-20 13:06:26,147 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:06:26" (1/1) ... [2024-09-20 13:06:26,148 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 13:06:26,149 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 13:06:26,149 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 13:06:26,149 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 13:06:26,150 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:06:26" (1/1) ... [2024-09-20 13:06:26,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:06:26,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 13:06:26,181 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) [2024-09-20 13:06:26,187 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 [2024-09-20 13:06:26,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 13:06:26,229 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 13:06:26,229 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 13:06:26,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-20 13:06:26,229 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2024-09-20 13:06:26,230 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2024-09-20 13:06:26,230 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2024-09-20 13:06:26,231 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2024-09-20 13:06:26,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 13:06:26,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 13:06:26,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 13:06:26,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 13:06:26,297 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 13:06:26,299 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 13:06:26,451 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-09-20 13:06:26,452 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 13:06:26,475 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 13:06:26,475 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-20 13:06:26,476 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:06:26 BoogieIcfgContainer [2024-09-20 13:06:26,476 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 13:06:26,478 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-20 13:06:26,478 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-20 13:06:26,480 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-20 13:06:26,481 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:06:25" (1/3) ... [2024-09-20 13:06:26,481 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53988507 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:06:26, skipping insertion in model container [2024-09-20 13:06:26,481 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:06:26" (2/3) ... [2024-09-20 13:06:26,482 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53988507 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:06:26, skipping insertion in model container [2024-09-20 13:06:26,482 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:06:26" (3/3) ... [2024-09-20 13:06:26,483 INFO L112 eAbstractionObserver]: Analyzing ICFG fibo_2calls_8-1.c [2024-09-20 13:06:26,495 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-20 13:06:26,495 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-09-20 13:06:26,552 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-20 13:06:26,559 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;@18e56e00, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-20 13:06:26,559 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-20 13:06:26,564 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) [2024-09-20 13:06:26,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-09-20 13:06:26,575 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 13:06:26,575 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 13:06:26,576 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 13:06:26,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:06:26,581 INFO L85 PathProgramCache]: Analyzing trace with hash -685851838, now seen corresponding path program 1 times [2024-09-20 13:06:26,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 13:06:26,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041882401] [2024-09-20 13:06:26,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:06:26,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 13:06:26,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:26,796 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 13:06:26,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:26,810 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-20 13:06:26,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:26,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-20 13:06:26,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 13:06:26,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041882401] [2024-09-20 13:06:26,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041882401] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-20 13:06:26,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-20 13:06:26,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-20 13:06:26,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122067741] [2024-09-20 13:06:26,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-20 13:06:26,880 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-20 13:06:26,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 13:06:26,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-20 13:06:26,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-20 13:06:26,900 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) [2024-09-20 13:06:26,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 13:06:26,983 INFO L93 Difference]: Finished difference Result 44 states and 55 transitions. [2024-09-20 13:06:26,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-20 13:06:26,986 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 [2024-09-20 13:06:26,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 13:06:26,994 INFO L225 Difference]: With dead ends: 44 [2024-09-20 13:06:26,994 INFO L226 Difference]: Without dead ends: 32 [2024-09-20 13:06:26,997 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 [2024-09-20 13:06:27,001 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, 0.1s IncrementalHoareTripleChecker+Time [2024-09-20 13:06:27,003 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 103 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-20 13:06:27,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-09-20 13:06:27,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2024-09-20 13:06:27,042 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) [2024-09-20 13:06:27,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2024-09-20 13:06:27,044 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 13 [2024-09-20 13:06:27,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 13:06:27,045 INFO L474 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2024-09-20 13:06:27,045 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) [2024-09-20 13:06:27,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:06:27,046 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2024-09-20 13:06:27,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-09-20 13:06:27,047 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 13:06:27,047 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 13:06:27,047 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-20 13:06:27,047 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 13:06:27,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:06:27,048 INFO L85 PathProgramCache]: Analyzing trace with hash 924954813, now seen corresponding path program 1 times [2024-09-20 13:06:27,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 13:06:27,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943082873] [2024-09-20 13:06:27,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:06:27,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 13:06:27,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:27,100 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 13:06:27,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:27,107 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-20 13:06:27,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:27,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-20 13:06:27,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 13:06:27,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943082873] [2024-09-20 13:06:27,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943082873] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-20 13:06:27,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-20 13:06:27,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-20 13:06:27,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642751017] [2024-09-20 13:06:27,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-20 13:06:27,173 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-20 13:06:27,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 13:06:27,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-20 13:06:27,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-20 13:06:27,176 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) [2024-09-20 13:06:27,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 13:06:27,254 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2024-09-20 13:06:27,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-20 13:06:27,255 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 [2024-09-20 13:06:27,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 13:06:27,256 INFO L225 Difference]: With dead ends: 36 [2024-09-20 13:06:27,256 INFO L226 Difference]: Without dead ends: 32 [2024-09-20 13:06:27,257 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 [2024-09-20 13:06:27,258 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, 0.1s IncrementalHoareTripleChecker+Time [2024-09-20 13:06:27,258 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 88 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-20 13:06:27,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-09-20 13:06:27,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2024-09-20 13:06:27,267 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) [2024-09-20 13:06:27,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2024-09-20 13:06:27,268 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 14 [2024-09-20 13:06:27,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 13:06:27,269 INFO L474 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2024-09-20 13:06:27,269 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) [2024-09-20 13:06:27,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:06:27,270 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2024-09-20 13:06:27,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-09-20 13:06:27,271 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 13:06:27,271 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] [2024-09-20 13:06:27,271 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-20 13:06:27,272 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 13:06:27,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:06:27,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1782416332, now seen corresponding path program 1 times [2024-09-20 13:06:27,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 13:06:27,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919905750] [2024-09-20 13:06:27,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:06:27,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 13:06:27,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:27,363 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 13:06:27,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:27,375 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-20 13:06:27,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:27,448 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:27,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:27,486 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-09-20 13:06:27,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:27,493 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-20 13:06:27,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 13:06:27,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919905750] [2024-09-20 13:06:27,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919905750] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-20 13:06:27,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186992833] [2024-09-20 13:06:27,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:06:27,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 13:06:27,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 13:06:27,500 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) [2024-09-20 13:06:27,501 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-20 13:06:27,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:27,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-20 13:06:27,559 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 13:06:27,674 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-20 13:06:27,678 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-20 13:06:27,908 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-20 13:06:27,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1186992833] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-20 13:06:27,909 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-20 13:06:27,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 13 [2024-09-20 13:06:27,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096832890] [2024-09-20 13:06:27,912 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-20 13:06:27,912 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-20 13:06:27,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 13:06:27,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-20 13:06:27,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-09-20 13:06:27,914 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) [2024-09-20 13:06:28,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 13:06:28,074 INFO L93 Difference]: Finished difference Result 58 states and 78 transitions. [2024-09-20 13:06:28,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-20 13:06:28,074 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 [2024-09-20 13:06:28,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 13:06:28,076 INFO L225 Difference]: With dead ends: 58 [2024-09-20 13:06:28,076 INFO L226 Difference]: Without dead ends: 34 [2024-09-20 13:06:28,077 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 [2024-09-20 13:06:28,078 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 [2024-09-20 13:06:28,078 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] [2024-09-20 13:06:28,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-09-20 13:06:28,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2024-09-20 13:06:28,090 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) [2024-09-20 13:06:28,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2024-09-20 13:06:28,092 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 26 [2024-09-20 13:06:28,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 13:06:28,093 INFO L474 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2024-09-20 13:06:28,093 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) [2024-09-20 13:06:28,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:06:28,094 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2024-09-20 13:06:28,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-09-20 13:06:28,095 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 13:06:28,095 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] [2024-09-20 13:06:28,113 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-09-20 13:06:28,299 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 [2024-09-20 13:06:28,300 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 13:06:28,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:06:28,300 INFO L85 PathProgramCache]: Analyzing trace with hash -836643613, now seen corresponding path program 1 times [2024-09-20 13:06:28,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 13:06:28,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45156649] [2024-09-20 13:06:28,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:06:28,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 13:06:28,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:28,338 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 13:06:28,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:28,342 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-20 13:06:28,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:28,410 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:28,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:28,445 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:28,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:28,451 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-20 13:06:28,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 13:06:28,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45156649] [2024-09-20 13:06:28,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45156649] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-20 13:06:28,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252651714] [2024-09-20 13:06:28,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:06:28,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 13:06:28,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 13:06:28,455 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) [2024-09-20 13:06:28,456 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-20 13:06:28,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:28,495 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-20 13:06:28,496 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 13:06:28,536 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-20 13:06:28,536 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-20 13:06:28,750 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-20 13:06:28,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1252651714] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-20 13:06:28,751 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-20 13:06:28,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 13 [2024-09-20 13:06:28,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380581765] [2024-09-20 13:06:28,752 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-20 13:06:28,753 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-20 13:06:28,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 13:06:28,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-20 13:06:28,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-09-20 13:06:28,755 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) [2024-09-20 13:06:28,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 13:06:28,972 INFO L93 Difference]: Finished difference Result 56 states and 77 transitions. [2024-09-20 13:06:28,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-20 13:06:28,972 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 [2024-09-20 13:06:28,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 13:06:28,975 INFO L225 Difference]: With dead ends: 56 [2024-09-20 13:06:28,975 INFO L226 Difference]: Without dead ends: 52 [2024-09-20 13:06:28,976 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 [2024-09-20 13:06:28,980 INFO L434 NwaCegarLoop]: 24 mSDtfsCounter, 32 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-20 13:06:28,981 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 182 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-20 13:06:28,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-09-20 13:06:28,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2024-09-20 13:06:28,998 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) [2024-09-20 13:06:29,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 68 transitions. [2024-09-20 13:06:29,004 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 68 transitions. Word has length 27 [2024-09-20 13:06:29,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 13:06:29,004 INFO L474 AbstractCegarLoop]: Abstraction has 50 states and 68 transitions. [2024-09-20 13:06:29,004 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) [2024-09-20 13:06:29,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:06:29,005 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 68 transitions. [2024-09-20 13:06:29,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-09-20 13:06:29,008 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 13:06:29,008 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] [2024-09-20 13:06:29,024 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-20 13:06:29,212 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 [2024-09-20 13:06:29,213 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 13:06:29,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:06:29,213 INFO L85 PathProgramCache]: Analyzing trace with hash -925704228, now seen corresponding path program 1 times [2024-09-20 13:06:29,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 13:06:29,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058589518] [2024-09-20 13:06:29,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:06:29,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 13:06:29,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:29,271 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 13:06:29,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:29,275 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-20 13:06:29,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:29,301 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:29,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:29,328 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:29,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:29,348 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-09-20 13:06:29,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:29,351 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-20 13:06:29,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:29,354 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-20 13:06:29,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 13:06:29,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058589518] [2024-09-20 13:06:29,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058589518] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-20 13:06:29,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1066003808] [2024-09-20 13:06:29,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:06:29,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 13:06:29,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 13:06:29,357 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) [2024-09-20 13:06:29,359 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-20 13:06:29,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:29,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-20 13:06:29,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 13:06:29,484 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-20 13:06:29,484 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-20 13:06:29,795 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-20 13:06:29,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1066003808] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-20 13:06:29,796 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-20 13:06:29,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 9] total 15 [2024-09-20 13:06:29,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361587128] [2024-09-20 13:06:29,796 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-20 13:06:29,797 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-20 13:06:29,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 13:06:29,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-20 13:06:29,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-09-20 13:06:29,798 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) [2024-09-20 13:06:30,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 13:06:30,043 INFO L93 Difference]: Finished difference Result 112 states and 180 transitions. [2024-09-20 13:06:30,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-20 13:06:30,043 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 [2024-09-20 13:06:30,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 13:06:30,045 INFO L225 Difference]: With dead ends: 112 [2024-09-20 13:06:30,049 INFO L226 Difference]: Without dead ends: 68 [2024-09-20 13:06:30,050 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 84 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2024-09-20 13:06:30,051 INFO L434 NwaCegarLoop]: 23 mSDtfsCounter, 38 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-20 13:06:30,051 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 200 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-20 13:06:30,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-09-20 13:06:30,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2024-09-20 13:06:30,068 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) [2024-09-20 13:06:30,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 95 transitions. [2024-09-20 13:06:30,069 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 95 transitions. Word has length 39 [2024-09-20 13:06:30,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 13:06:30,070 INFO L474 AbstractCegarLoop]: Abstraction has 66 states and 95 transitions. [2024-09-20 13:06:30,070 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) [2024-09-20 13:06:30,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:06:30,070 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 95 transitions. [2024-09-20 13:06:30,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-09-20 13:06:30,072 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 13:06:30,072 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] [2024-09-20 13:06:30,093 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-20 13:06:30,276 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 [2024-09-20 13:06:30,277 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 13:06:30,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:06:30,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1261961157, now seen corresponding path program 1 times [2024-09-20 13:06:30,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 13:06:30,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261142261] [2024-09-20 13:06:30,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:06:30,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 13:06:30,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:30,323 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 13:06:30,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:30,328 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-20 13:06:30,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:30,377 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:30,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:30,444 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:30,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:30,453 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:30,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:30,459 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:06:30,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:30,475 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-09-20 13:06:30,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 13:06:30,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261142261] [2024-09-20 13:06:30,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261142261] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-20 13:06:30,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [683781947] [2024-09-20 13:06:30,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:06:30,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 13:06:30,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 13:06:30,480 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) [2024-09-20 13:06:30,481 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-20 13:06:30,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:30,521 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-20 13:06:30,524 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 13:06:30,600 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-20 13:06:30,601 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-20 13:06:30,907 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-20 13:06:30,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [683781947] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-20 13:06:30,907 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-20 13:06:30,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9] total 18 [2024-09-20 13:06:30,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208136561] [2024-09-20 13:06:30,908 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-20 13:06:30,908 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-20 13:06:30,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 13:06:30,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-20 13:06:30,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2024-09-20 13:06:30,910 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) [2024-09-20 13:06:31,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 13:06:31,241 INFO L93 Difference]: Finished difference Result 182 states and 328 transitions. [2024-09-20 13:06:31,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-20 13:06:31,242 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 [2024-09-20 13:06:31,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 13:06:31,247 INFO L225 Difference]: With dead ends: 182 [2024-09-20 13:06:31,247 INFO L226 Difference]: Without dead ends: 122 [2024-09-20 13:06:31,249 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 [2024-09-20 13:06:31,249 INFO L434 NwaCegarLoop]: 35 mSDtfsCounter, 32 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-20 13:06:31,250 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 343 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-20 13:06:31,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-09-20 13:06:31,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 103. [2024-09-20 13:06:31,294 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) [2024-09-20 13:06:31,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 165 transitions. [2024-09-20 13:06:31,300 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 165 transitions. Word has length 40 [2024-09-20 13:06:31,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 13:06:31,301 INFO L474 AbstractCegarLoop]: Abstraction has 103 states and 165 transitions. [2024-09-20 13:06:31,301 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) [2024-09-20 13:06:31,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:06:31,301 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 165 transitions. [2024-09-20 13:06:31,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-09-20 13:06:31,307 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 13:06:31,307 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] [2024-09-20 13:06:31,326 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-20 13:06:31,508 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 [2024-09-20 13:06:31,508 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 13:06:31,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:06:31,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1624375296, now seen corresponding path program 1 times [2024-09-20 13:06:31,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 13:06:31,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147968120] [2024-09-20 13:06:31,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:06:31,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 13:06:31,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:31,551 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 13:06:31,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:31,554 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-20 13:06:31,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:31,588 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:31,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:31,625 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:31,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:31,672 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:31,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:31,676 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:31,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:31,680 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:06:31,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:31,692 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-20 13:06:31,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:31,695 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-09-20 13:06:31,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 13:06:31,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147968120] [2024-09-20 13:06:31,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147968120] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-20 13:06:31,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255480272] [2024-09-20 13:06:31,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:06:31,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 13:06:31,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 13:06:31,697 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) [2024-09-20 13:06:31,699 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-20 13:06:31,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:31,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-20 13:06:31,764 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 13:06:31,859 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 23 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-09-20 13:06:31,860 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-20 13:06:32,371 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 28 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-20 13:06:32,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1255480272] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-20 13:06:32,371 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-20 13:06:32,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 11] total 20 [2024-09-20 13:06:32,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563379407] [2024-09-20 13:06:32,372 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-20 13:06:32,372 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-09-20 13:06:32,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 13:06:32,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-09-20 13:06:32,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2024-09-20 13:06:32,374 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) [2024-09-20 13:06:32,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 13:06:32,708 INFO L93 Difference]: Finished difference Result 252 states and 489 transitions. [2024-09-20 13:06:32,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-20 13:06:32,708 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 [2024-09-20 13:06:32,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 13:06:32,711 INFO L225 Difference]: With dead ends: 252 [2024-09-20 13:06:32,711 INFO L226 Difference]: Without dead ends: 155 [2024-09-20 13:06:32,713 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 118 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=571, Unknown=0, NotChecked=0, Total=702 [2024-09-20 13:06:32,713 INFO L434 NwaCegarLoop]: 34 mSDtfsCounter, 41 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-20 13:06:32,714 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 256 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-20 13:06:32,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-09-20 13:06:32,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 112. [2024-09-20 13:06:32,746 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) [2024-09-20 13:06:32,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 180 transitions. [2024-09-20 13:06:32,748 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 180 transitions. Word has length 54 [2024-09-20 13:06:32,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 13:06:32,748 INFO L474 AbstractCegarLoop]: Abstraction has 112 states and 180 transitions. [2024-09-20 13:06:32,748 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) [2024-09-20 13:06:32,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:06:32,749 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 180 transitions. [2024-09-20 13:06:32,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-09-20 13:06:32,752 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 13:06:32,753 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] [2024-09-20 13:06:32,768 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-09-20 13:06:32,953 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 [2024-09-20 13:06:32,953 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 13:06:32,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:06:32,954 INFO L85 PathProgramCache]: Analyzing trace with hash -805611050, now seen corresponding path program 1 times [2024-09-20 13:06:32,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 13:06:32,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071683073] [2024-09-20 13:06:32,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:06:32,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 13:06:32,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:33,049 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 13:06:33,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:33,052 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-20 13:06:33,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:33,124 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:33,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:33,167 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:33,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:33,210 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:33,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:33,260 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:33,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:33,264 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:33,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:33,268 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:06:33,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:33,272 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 13:06:33,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:33,286 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-20 13:06:33,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:33,296 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:33,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:33,302 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:33,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:33,305 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:33,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:33,307 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:33,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:33,309 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:06:33,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:33,311 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 13:06:33,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:33,313 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 44 proven. 79 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-09-20 13:06:33,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 13:06:33,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071683073] [2024-09-20 13:06:33,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071683073] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-20 13:06:33,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1896616168] [2024-09-20 13:06:33,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:06:33,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 13:06:33,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 13:06:33,315 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) [2024-09-20 13:06:33,317 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-20 13:06:33,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:33,383 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-20 13:06:33,390 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 13:06:33,522 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 17 proven. 119 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-09-20 13:06:33,523 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-20 13:06:34,360 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 17 proven. 129 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-09-20 13:06:34,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1896616168] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-20 13:06:34,360 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-20 13:06:34,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 13] total 24 [2024-09-20 13:06:34,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751413012] [2024-09-20 13:06:34,360 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-20 13:06:34,361 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-20 13:06:34,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 13:06:34,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-20 13:06:34,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=464, Unknown=0, NotChecked=0, Total=552 [2024-09-20 13:06:34,362 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) [2024-09-20 13:06:34,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 13:06:34,830 INFO L93 Difference]: Finished difference Result 256 states and 494 transitions. [2024-09-20 13:06:34,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-20 13:06:34,830 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 [2024-09-20 13:06:34,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 13:06:34,833 INFO L225 Difference]: With dead ends: 256 [2024-09-20 13:06:34,833 INFO L226 Difference]: Without dead ends: 108 [2024-09-20 13:06:34,835 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 235 SyntacticMatches, 5 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=221, Invalid=1039, Unknown=0, NotChecked=0, Total=1260 [2024-09-20 13:06:34,836 INFO L434 NwaCegarLoop]: 34 mSDtfsCounter, 59 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-20 13:06:34,836 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 365 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-20 13:06:34,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-09-20 13:06:34,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 91. [2024-09-20 13:06:34,849 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) [2024-09-20 13:06:34,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 127 transitions. [2024-09-20 13:06:34,851 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 127 transitions. Word has length 110 [2024-09-20 13:06:34,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 13:06:34,851 INFO L474 AbstractCegarLoop]: Abstraction has 91 states and 127 transitions. [2024-09-20 13:06:34,852 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) [2024-09-20 13:06:34,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:06:34,852 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 127 transitions. [2024-09-20 13:06:34,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-09-20 13:06:34,854 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 13:06:34,854 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] [2024-09-20 13:06:34,870 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-09-20 13:06:35,055 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 [2024-09-20 13:06:35,056 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 13:06:35,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:06:35,056 INFO L85 PathProgramCache]: Analyzing trace with hash 222670340, now seen corresponding path program 1 times [2024-09-20 13:06:35,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 13:06:35,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025671496] [2024-09-20 13:06:35,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:06:35,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 13:06:35,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:35,189 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 13:06:35,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:35,191 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-20 13:06:35,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:35,271 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:35,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:35,316 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:35,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:35,347 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:35,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:35,383 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:35,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:35,427 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:35,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:35,431 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:35,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:35,434 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:06:35,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:35,438 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 13:06:35,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:35,450 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-20 13:06:35,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:35,456 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:35,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:35,460 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:35,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:35,462 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:35,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:35,463 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:06:35,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:35,465 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-20 13:06:35,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:35,474 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:35,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:35,479 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:35,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:35,501 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:35,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:35,506 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:35,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:35,507 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:06:35,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:35,510 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 13:06:35,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:35,514 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:35,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:35,516 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:35,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:35,518 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 71 proven. 160 refuted. 0 times theorem prover too weak. 434 trivial. 0 not checked. [2024-09-20 13:06:35,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 13:06:35,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025671496] [2024-09-20 13:06:35,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025671496] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-20 13:06:35,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077863518] [2024-09-20 13:06:35,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:06:35,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 13:06:35,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 13:06:35,521 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) [2024-09-20 13:06:35,522 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-20 13:06:35,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:35,617 INFO L262 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-20 13:06:35,622 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 13:06:35,748 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 34 proven. 242 refuted. 0 times theorem prover too weak. 389 trivial. 0 not checked. [2024-09-20 13:06:35,748 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-20 13:06:36,879 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 34 proven. 258 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2024-09-20 13:06:36,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2077863518] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-20 13:06:36,879 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-20 13:06:36,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 15] total 26 [2024-09-20 13:06:36,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697825628] [2024-09-20 13:06:36,880 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-20 13:06:36,880 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-09-20 13:06:36,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 13:06:36,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-09-20 13:06:36,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=549, Unknown=0, NotChecked=0, Total=650 [2024-09-20 13:06:36,882 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) [2024-09-20 13:06:37,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 13:06:37,370 INFO L93 Difference]: Finished difference Result 229 states and 395 transitions. [2024-09-20 13:06:37,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-09-20 13:06:37,370 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 [2024-09-20 13:06:37,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 13:06:37,372 INFO L225 Difference]: With dead ends: 229 [2024-09-20 13:06:37,372 INFO L226 Difference]: Without dead ends: 131 [2024-09-20 13:06:37,374 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 [2024-09-20 13:06:37,375 INFO L434 NwaCegarLoop]: 36 mSDtfsCounter, 85 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-20 13:06:37,375 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 437 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-20 13:06:37,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-09-20 13:06:37,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 111. [2024-09-20 13:06:37,390 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) [2024-09-20 13:06:37,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 163 transitions. [2024-09-20 13:06:37,391 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 163 transitions. Word has length 164 [2024-09-20 13:06:37,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 13:06:37,392 INFO L474 AbstractCegarLoop]: Abstraction has 111 states and 163 transitions. [2024-09-20 13:06:37,392 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) [2024-09-20 13:06:37,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:06:37,393 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 163 transitions. [2024-09-20 13:06:37,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2024-09-20 13:06:37,395 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 13:06:37,395 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] [2024-09-20 13:06:37,412 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-20 13:06:37,596 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 [2024-09-20 13:06:37,597 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 13:06:37,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:06:37,598 INFO L85 PathProgramCache]: Analyzing trace with hash 501832710, now seen corresponding path program 2 times [2024-09-20 13:06:37,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 13:06:37,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362075801] [2024-09-20 13:06:37,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:06:37,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 13:06:37,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:37,792 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 13:06:37,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:37,794 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-20 13:06:37,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:37,937 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:37,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:38,029 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:38,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:38,122 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:38,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:38,161 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:38,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:38,168 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:38,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:38,171 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:38,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:38,173 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:38,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:38,175 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:06:38,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:38,177 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 13:06:38,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:38,231 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:38,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:38,235 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:38,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:38,239 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-20 13:06:38,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:38,269 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:38,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:38,285 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:38,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:38,288 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-20 13:06:38,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:38,298 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:38,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:38,303 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:38,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:38,306 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:38,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:38,309 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:38,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:38,310 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:06:38,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:38,312 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 13:06:38,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:38,316 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:38,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:38,318 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:38,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:38,319 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-09-20 13:06:38,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:38,330 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:38,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:38,335 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:38,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:38,338 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:38,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:38,340 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:38,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:38,342 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:06:38,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:38,344 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 13:06:38,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:38,347 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:38,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:38,348 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:38,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:38,350 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 167 proven. 260 refuted. 0 times theorem prover too weak. 977 trivial. 0 not checked. [2024-09-20 13:06:38,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 13:06:38,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362075801] [2024-09-20 13:06:38,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362075801] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-20 13:06:38,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1597891667] [2024-09-20 13:06:38,351 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-20 13:06:38,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 13:06:38,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 13:06:38,353 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) [2024-09-20 13:06:38,356 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-20 13:06:38,479 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-20 13:06:38,479 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-20 13:06:38,481 INFO L262 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-20 13:06:38,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 13:06:38,630 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 77 proven. 418 refuted. 0 times theorem prover too weak. 909 trivial. 0 not checked. [2024-09-20 13:06:38,631 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-20 13:06:40,366 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 77 proven. 442 refuted. 0 times theorem prover too weak. 885 trivial. 0 not checked. [2024-09-20 13:06:40,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1597891667] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-20 13:06:40,366 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-20 13:06:40,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 17] total 27 [2024-09-20 13:06:40,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673534826] [2024-09-20 13:06:40,367 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-20 13:06:40,367 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-09-20 13:06:40,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 13:06:40,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-09-20 13:06:40,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=586, Unknown=0, NotChecked=0, Total=702 [2024-09-20 13:06:40,369 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) [2024-09-20 13:06:40,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 13:06:40,839 INFO L93 Difference]: Finished difference Result 254 states and 432 transitions. [2024-09-20 13:06:40,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-09-20 13:06:40,840 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 [2024-09-20 13:06:40,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 13:06:40,844 INFO L225 Difference]: With dead ends: 254 [2024-09-20 13:06:40,844 INFO L226 Difference]: Without dead ends: 156 [2024-09-20 13:06:40,845 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 [2024-09-20 13:06:40,847 INFO L434 NwaCegarLoop]: 32 mSDtfsCounter, 64 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-20 13:06:40,848 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 336 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-20 13:06:40,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-09-20 13:06:40,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 143. [2024-09-20 13:06:40,874 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) [2024-09-20 13:06:40,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 221 transitions. [2024-09-20 13:06:40,876 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 221 transitions. Word has length 231 [2024-09-20 13:06:40,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 13:06:40,876 INFO L474 AbstractCegarLoop]: Abstraction has 143 states and 221 transitions. [2024-09-20 13:06:40,876 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) [2024-09-20 13:06:40,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:06:40,877 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 221 transitions. [2024-09-20 13:06:40,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2024-09-20 13:06:40,885 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 13:06:40,886 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] [2024-09-20 13:06:40,903 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-09-20 13:06:41,089 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 [2024-09-20 13:06:41,090 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 13:06:41,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:06:41,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1090979059, now seen corresponding path program 3 times [2024-09-20 13:06:41,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 13:06:41,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470249553] [2024-09-20 13:06:41,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:06:41,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 13:06:41,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:41,647 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 13:06:41,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:41,650 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-20 13:06:41,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,021 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:42,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,213 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:42,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,309 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:42,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,365 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:42,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,397 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:42,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,403 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:42,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,406 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:42,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,407 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:42,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,408 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:06:42,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,410 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 13:06:42,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,452 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:42,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,455 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:42,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,458 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-20 13:06:42,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,488 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:42,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,502 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:42,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,505 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-20 13:06:42,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,516 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:42,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,522 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:42,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,527 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:42,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,529 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:42,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,530 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:42,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,532 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:06:42,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,533 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 13:06:42,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,535 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:42,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,537 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:42,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,538 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-20 13:06:42,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,541 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:42,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,542 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:42,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,544 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-09-20 13:06:42,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,558 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:42,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,564 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:42,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,568 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:42,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,571 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:42,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,573 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:42,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,574 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:06:42,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,576 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 13:06:42,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,578 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:42,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,579 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:42,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,581 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-20 13:06:42,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,585 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:42,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,588 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:42,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,590 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:42,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,591 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:06:42,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,595 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2024-09-20 13:06:42,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,651 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:42,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,672 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:42,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,682 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:42,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,688 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:42,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,692 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:42,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,695 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:42,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,696 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:42,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,700 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:06:42,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,701 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 13:06:42,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,707 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:42,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,708 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:42,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,710 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-20 13:06:42,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,712 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:42,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,713 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:42,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,714 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-20 13:06:42,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,724 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:42,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,730 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:42,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,734 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:42,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,737 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:42,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,738 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:42,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,739 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:06:42,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,740 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 13:06:42,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,743 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:42,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,744 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:42,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,746 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-20 13:06:42,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,748 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:42,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,750 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:42,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,751 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-09-20 13:06:42,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,755 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:42,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,757 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:42,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,759 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:42,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,760 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:06:42,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:42,764 INFO L134 CoverageAnalysis]: Checked inductivity of 8056 backedges. 302 proven. 934 refuted. 0 times theorem prover too weak. 6820 trivial. 0 not checked. [2024-09-20 13:06:42,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 13:06:42,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470249553] [2024-09-20 13:06:42,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470249553] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-20 13:06:42,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [860096214] [2024-09-20 13:06:42,765 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-20 13:06:42,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 13:06:42,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 13:06:42,767 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) [2024-09-20 13:06:42,768 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-20 13:06:42,922 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2024-09-20 13:06:42,923 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-20 13:06:42,925 INFO L262 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-20 13:06:42,931 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 13:06:43,045 INFO L134 CoverageAnalysis]: Checked inductivity of 8056 backedges. 2122 proven. 34 refuted. 0 times theorem prover too weak. 5900 trivial. 0 not checked. [2024-09-20 13:06:43,045 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-20 13:06:44,744 INFO L134 CoverageAnalysis]: Checked inductivity of 8056 backedges. 1190 proven. 112 refuted. 0 times theorem prover too weak. 6754 trivial. 0 not checked. [2024-09-20 13:06:44,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [860096214] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-20 13:06:44,745 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-20 13:06:44,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 13] total 23 [2024-09-20 13:06:44,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834827908] [2024-09-20 13:06:44,747 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-20 13:06:44,748 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-09-20 13:06:44,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 13:06:44,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-09-20 13:06:44,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2024-09-20 13:06:44,749 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) [2024-09-20 13:06:45,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 13:06:45,024 INFO L93 Difference]: Finished difference Result 283 states and 456 transitions. [2024-09-20 13:06:45,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-20 13:06:45,024 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 [2024-09-20 13:06:45,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 13:06:45,027 INFO L225 Difference]: With dead ends: 283 [2024-09-20 13:06:45,027 INFO L226 Difference]: Without dead ends: 153 [2024-09-20 13:06:45,028 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 [2024-09-20 13:06:45,029 INFO L434 NwaCegarLoop]: 28 mSDtfsCounter, 40 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-20 13:06:45,029 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] [2024-09-20 13:06:45,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-09-20 13:06:45,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 147. [2024-09-20 13:06:45,046 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) [2024-09-20 13:06:45,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 214 transitions. [2024-09-20 13:06:45,048 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 214 transitions. Word has length 530 [2024-09-20 13:06:45,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 13:06:45,048 INFO L474 AbstractCegarLoop]: Abstraction has 147 states and 214 transitions. [2024-09-20 13:06:45,048 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) [2024-09-20 13:06:45,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:06:45,049 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 214 transitions. [2024-09-20 13:06:45,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2024-09-20 13:06:45,054 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 13:06:45,054 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] [2024-09-20 13:06:45,071 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-09-20 13:06:45,254 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 [2024-09-20 13:06:45,255 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 13:06:45,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:06:45,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1175745416, now seen corresponding path program 4 times [2024-09-20 13:06:45,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 13:06:45,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183282071] [2024-09-20 13:06:45,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:06:45,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 13:06:45,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:45,614 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 13:06:45,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:45,616 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-20 13:06:45,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:45,984 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:46,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,198 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:46,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,320 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:46,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,383 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:46,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,415 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:46,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,420 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:46,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,423 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:46,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,424 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:46,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,425 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:06:46,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,426 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 13:06:46,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,485 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:46,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,489 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:46,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,492 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-20 13:06:46,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,501 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:46,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,504 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:46,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,505 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:46,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,506 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:06:46,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,508 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-20 13:06:46,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,528 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:46,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,534 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:46,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,539 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:46,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,542 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:46,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,544 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:46,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,545 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:06:46,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,547 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 13:06:46,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,551 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:46,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,553 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:46,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,555 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-20 13:06:46,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,559 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:46,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,562 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:46,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,564 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:46,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,565 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:06:46,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,566 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-09-20 13:06:46,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,618 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:46,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,661 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:46,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,695 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:46,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,712 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:46,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,715 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:06:46,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,718 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 13:06:46,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,723 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:46,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,725 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:46,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,727 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-20 13:06:46,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,740 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:46,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,747 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:46,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,752 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:46,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,755 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:46,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,759 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:46,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,760 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:06:46,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,765 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 13:06:46,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,768 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:46,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,769 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:46,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,771 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-20 13:06:46,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,775 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:46,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,778 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:46,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,779 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:46,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,781 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:06:46,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:46,784 INFO L134 CoverageAnalysis]: Checked inductivity of 4399 backedges. 542 proven. 693 refuted. 0 times theorem prover too weak. 3164 trivial. 0 not checked. [2024-09-20 13:06:46,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 13:06:46,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183282071] [2024-09-20 13:06:46,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183282071] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-20 13:06:46,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [134530793] [2024-09-20 13:06:46,785 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-20 13:06:46,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 13:06:46,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 13:06:46,787 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) [2024-09-20 13:06:46,788 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-20 13:06:46,961 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-20 13:06:46,961 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-20 13:06:46,964 INFO L262 TraceCheckSpWp]: Trace formula consists of 704 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-20 13:06:46,969 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 13:06:47,146 INFO L134 CoverageAnalysis]: Checked inductivity of 4399 backedges. 425 proven. 657 refuted. 0 times theorem prover too weak. 3317 trivial. 0 not checked. [2024-09-20 13:06:47,147 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-20 13:06:50,090 INFO L134 CoverageAnalysis]: Checked inductivity of 4399 backedges. 427 proven. 685 refuted. 0 times theorem prover too weak. 3287 trivial. 0 not checked. [2024-09-20 13:06:50,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [134530793] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-20 13:06:50,090 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-20 13:06:50,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 13, 19] total 37 [2024-09-20 13:06:50,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055800797] [2024-09-20 13:06:50,091 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-20 13:06:50,091 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-09-20 13:06:50,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 13:06:50,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-09-20 13:06:50,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=1138, Unknown=0, NotChecked=0, Total=1332 [2024-09-20 13:06:50,093 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) [2024-09-20 13:06:50,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 13:06:50,940 INFO L93 Difference]: Finished difference Result 338 states and 610 transitions. [2024-09-20 13:06:50,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-09-20 13:06:50,940 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 [2024-09-20 13:06:50,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 13:06:50,943 INFO L225 Difference]: With dead ends: 338 [2024-09-20 13:06:50,944 INFO L226 Difference]: Without dead ends: 176 [2024-09-20 13:06:50,946 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 943 GetRequests, 882 SyntacticMatches, 9 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1008 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=426, Invalid=2436, Unknown=0, NotChecked=0, Total=2862 [2024-09-20 13:06:50,947 INFO L434 NwaCegarLoop]: 57 mSDtfsCounter, 66 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 1481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-20 13:06:50,947 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 814 Invalid, 1481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-20 13:06:50,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-09-20 13:06:50,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 156. [2024-09-20 13:06:50,966 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) [2024-09-20 13:06:50,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 194 transitions. [2024-09-20 13:06:50,968 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 194 transitions. Word has length 395 [2024-09-20 13:06:50,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 13:06:50,969 INFO L474 AbstractCegarLoop]: Abstraction has 156 states and 194 transitions. [2024-09-20 13:06:50,969 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) [2024-09-20 13:06:50,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:06:50,970 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 194 transitions. [2024-09-20 13:06:50,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2024-09-20 13:06:50,976 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 13:06:50,977 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] [2024-09-20 13:06:50,995 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-09-20 13:06:51,181 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 [2024-09-20 13:06:51,182 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 13:06:51,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:06:51,182 INFO L85 PathProgramCache]: Analyzing trace with hash 143598254, now seen corresponding path program 5 times [2024-09-20 13:06:51,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 13:06:51,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274776382] [2024-09-20 13:06:51,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:06:51,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 13:06:51,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:51,472 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 13:06:51,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:51,477 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-20 13:06:51,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:51,850 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:51,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,014 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:52,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,147 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:52,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,206 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:52,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,238 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:52,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,243 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:52,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,245 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:52,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,246 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:52,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,247 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:06:52,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,248 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 13:06:52,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,299 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:52,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,302 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:52,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,305 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-20 13:06:52,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,313 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:52,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,315 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:52,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,316 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:52,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,317 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:06:52,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,319 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-20 13:06:52,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,330 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:52,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,333 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:52,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,335 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:52,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,337 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:52,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,338 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:06:52,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,339 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 13:06:52,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,341 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:52,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,342 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:52,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,343 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-20 13:06:52,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,359 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:52,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,365 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:52,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,368 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:52,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,370 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:52,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,371 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:52,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,372 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:06:52,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,373 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 13:06:52,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,375 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:52,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,377 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:52,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,378 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-20 13:06:52,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,381 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:52,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,383 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:52,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,386 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:52,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,387 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:06:52,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,389 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-20 13:06:52,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,472 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:52,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,536 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:52,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,570 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:52,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,576 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:52,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,579 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:52,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,580 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:52,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,581 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:06:52,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,584 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 13:06:52,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,634 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:52,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,637 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:52,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,640 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-20 13:06:52,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,648 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:52,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,651 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:52,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,652 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:52,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,653 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:06:52,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,654 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-20 13:06:52,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,694 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:52,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,732 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:52,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,753 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:52,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,757 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:06:52,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:52,764 INFO L134 CoverageAnalysis]: Checked inductivity of 5369 backedges. 1060 proven. 718 refuted. 0 times theorem prover too weak. 3591 trivial. 0 not checked. [2024-09-20 13:06:52,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 13:06:52,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274776382] [2024-09-20 13:06:52,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274776382] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-20 13:06:52,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1137028] [2024-09-20 13:06:52,765 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-20 13:06:52,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 13:06:52,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 13:06:52,767 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) [2024-09-20 13:06:52,768 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-20 13:06:53,017 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2024-09-20 13:06:53,017 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-20 13:06:53,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 881 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-20 13:06:53,026 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 13:06:53,231 INFO L134 CoverageAnalysis]: Checked inductivity of 5369 backedges. 918 proven. 135 refuted. 0 times theorem prover too weak. 4316 trivial. 0 not checked. [2024-09-20 13:06:53,231 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-20 13:06:54,794 INFO L134 CoverageAnalysis]: Checked inductivity of 5369 backedges. 920 proven. 137 refuted. 0 times theorem prover too weak. 4312 trivial. 0 not checked. [2024-09-20 13:06:54,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1137028] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-20 13:06:54,794 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-20 13:06:54,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 13, 15] total 41 [2024-09-20 13:06:54,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590929239] [2024-09-20 13:06:54,795 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-20 13:06:54,796 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-09-20 13:06:54,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 13:06:54,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-09-20 13:06:54,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=1407, Unknown=0, NotChecked=0, Total=1640 [2024-09-20 13:06:54,799 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) [2024-09-20 13:06:55,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 13:06:55,447 INFO L93 Difference]: Finished difference Result 337 states and 445 transitions. [2024-09-20 13:06:55,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-09-20 13:06:55,447 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 [2024-09-20 13:06:55,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 13:06:55,450 INFO L225 Difference]: With dead ends: 337 [2024-09-20 13:06:55,450 INFO L226 Difference]: Without dead ends: 194 [2024-09-20 13:06:55,453 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1040 GetRequests, 981 SyntacticMatches, 7 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1131 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=416, Invalid=2446, Unknown=0, NotChecked=0, Total=2862 [2024-09-20 13:06:55,454 INFO L434 NwaCegarLoop]: 56 mSDtfsCounter, 94 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.4s IncrementalHoareTripleChecker+Time [2024-09-20 13:06:55,454 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 783 Invalid, 895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-20 13:06:55,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-09-20 13:06:55,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 163. [2024-09-20 13:06:55,477 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) [2024-09-20 13:06:55,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 195 transitions. [2024-09-20 13:06:55,479 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 195 transitions. Word has length 436 [2024-09-20 13:06:55,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 13:06:55,480 INFO L474 AbstractCegarLoop]: Abstraction has 163 states and 195 transitions. [2024-09-20 13:06:55,480 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) [2024-09-20 13:06:55,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:06:55,480 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 195 transitions. [2024-09-20 13:06:55,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2024-09-20 13:06:55,482 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 13:06:55,482 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] [2024-09-20 13:06:55,500 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-09-20 13:06:55,686 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 [2024-09-20 13:06:55,687 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 13:06:55,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:06:55,687 INFO L85 PathProgramCache]: Analyzing trace with hash -47366488, now seen corresponding path program 6 times [2024-09-20 13:06:55,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 13:06:55,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090327645] [2024-09-20 13:06:55,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:06:55,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 13:06:55,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:55,940 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 13:06:55,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:55,942 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-20 13:06:55,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,224 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:56,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,370 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:56,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,487 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:56,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,545 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:56,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,577 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:56,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,582 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:56,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,584 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:56,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,585 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:56,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,586 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:06:56,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,588 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 13:06:56,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,633 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:56,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,635 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:56,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,637 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-20 13:06:56,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,643 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:56,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,645 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:56,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,646 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:56,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,647 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:06:56,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,648 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-20 13:06:56,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,658 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:56,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,661 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:56,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,663 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:56,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,665 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,669 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:06:56,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,670 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 13:06:56,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,672 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:56,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,674 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:56,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,675 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-20 13:06:56,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,692 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:56,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,698 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:56,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,701 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:56,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,703 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:56,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,704 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:56,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,705 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:06:56,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,706 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 13:06:56,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,708 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:56,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,709 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:56,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,710 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-20 13:06:56,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,713 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:56,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,715 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:56,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,716 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:56,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,717 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:06:56,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,719 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-20 13:06:56,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,791 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:56,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,842 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:56,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,882 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:56,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,922 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:56,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,939 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:56,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,942 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:06:56,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,947 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 13:06:56,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,952 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:56,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,955 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:56,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,957 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-20 13:06:56,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,963 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:56,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,972 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:06:56,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,973 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:06:56,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,976 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:06:56,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:06:56,978 INFO L134 CoverageAnalysis]: Checked inductivity of 4370 backedges. 726 proven. 662 refuted. 0 times theorem prover too weak. 2982 trivial. 0 not checked. [2024-09-20 13:06:56,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 13:06:56,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090327645] [2024-09-20 13:06:56,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090327645] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-20 13:06:56,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1374898426] [2024-09-20 13:06:56,980 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-20 13:06:56,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 13:06:56,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 13:06:56,982 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) [2024-09-20 13:06:56,983 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-20 13:06:57,162 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2024-09-20 13:06:57,162 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-20 13:06:57,164 INFO L262 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-20 13:06:57,167 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 13:06:57,280 INFO L134 CoverageAnalysis]: Checked inductivity of 4370 backedges. 603 proven. 95 refuted. 0 times theorem prover too weak. 3672 trivial. 0 not checked. [2024-09-20 13:06:57,281 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-20 13:06:58,470 INFO L134 CoverageAnalysis]: Checked inductivity of 4370 backedges. 607 proven. 101 refuted. 0 times theorem prover too weak. 3662 trivial. 0 not checked. [2024-09-20 13:06:58,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1374898426] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-20 13:06:58,471 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-20 13:06:58,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 10, 13] total 36 [2024-09-20 13:06:58,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938839241] [2024-09-20 13:06:58,471 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-20 13:06:58,472 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-09-20 13:06:58,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 13:06:58,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-09-20 13:06:58,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=1077, Unknown=0, NotChecked=0, Total=1260 [2024-09-20 13:06:58,475 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) [2024-09-20 13:06:59,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 13:06:59,130 INFO L93 Difference]: Finished difference Result 244 states and 295 transitions. [2024-09-20 13:06:59,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-09-20 13:06:59,130 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 [2024-09-20 13:06:59,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 13:06:59,135 INFO L225 Difference]: With dead ends: 244 [2024-09-20 13:06:59,135 INFO L226 Difference]: Without dead ends: 220 [2024-09-20 13:06:59,137 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 949 GetRequests, 889 SyntacticMatches, 6 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1042 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=442, Invalid=2638, Unknown=0, NotChecked=0, Total=3080 [2024-09-20 13:06:59,137 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 [2024-09-20 13:06:59,138 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] [2024-09-20 13:06:59,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-09-20 13:06:59,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 180. [2024-09-20 13:06:59,158 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) [2024-09-20 13:06:59,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 212 transitions. [2024-09-20 13:06:59,159 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 212 transitions. Word has length 395 [2024-09-20 13:06:59,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 13:06:59,160 INFO L474 AbstractCegarLoop]: Abstraction has 180 states and 212 transitions. [2024-09-20 13:06:59,160 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) [2024-09-20 13:06:59,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:06:59,161 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 212 transitions. [2024-09-20 13:06:59,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2024-09-20 13:06:59,163 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 13:06:59,163 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] [2024-09-20 13:06:59,180 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-09-20 13:06:59,363 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 [2024-09-20 13:06:59,364 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 13:06:59,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:06:59,364 INFO L85 PathProgramCache]: Analyzing trace with hash -853718073, now seen corresponding path program 7 times [2024-09-20 13:06:59,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 13:06:59,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886043656] [2024-09-20 13:06:59,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:06:59,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 13:06:59,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:02,400 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 13:07:02,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:02,408 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-20 13:07:02,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:03,785 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:03,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:04,375 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:04,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:04,645 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:04,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:04,772 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:04,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:04,850 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:04,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:04,916 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:04,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:04,983 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:04,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:05,007 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:07:05,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:05,034 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:07:05,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:05,038 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 13:07:05,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:05,072 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:05,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:05,076 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:07:05,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:05,102 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-20 13:07:05,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:05,175 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:05,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:05,188 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:05,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:05,193 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:07:05,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:05,197 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:07:05,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:05,202 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-20 13:07:05,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:05,316 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:05,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:05,334 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:05,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:05,346 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:05,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:05,350 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:07:05,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:05,354 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:07:05,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:05,358 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 13:07:05,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:05,369 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:05,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:05,374 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:07:05,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:05,379 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-20 13:07:05,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:05,561 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:05,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:05,600 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:05,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:05,625 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:05,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:05,637 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:05,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:05,643 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:07:05,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:05,648 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:07:05,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:05,653 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 13:07:05,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:05,666 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:05,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:05,671 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:07:05,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:05,677 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-20 13:07:05,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:05,698 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:05,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:05,710 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:05,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:05,715 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:07:05,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:05,723 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:07:05,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:05,729 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-20 13:07:05,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:06,088 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:06,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:06,172 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:06,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:06,217 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:06,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:06,235 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:06,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:06,247 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:06,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:06,251 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:07:06,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:06,255 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:07:06,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:06,259 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 13:07:06,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:06,271 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:06,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:06,275 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:07:06,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:06,279 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-20 13:07:06,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:06,298 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:06,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:06,311 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:06,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:06,316 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:07:06,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:06,321 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:07:06,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:06,325 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-20 13:07:06,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:06,364 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:06,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:06,383 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:06,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:06,395 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:06,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:06,399 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:07:06,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:06,407 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:07:06,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:06,411 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 13:07:06,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:06,424 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:06,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:06,427 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:07:06,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:06,431 INFO L134 CoverageAnalysis]: Checked inductivity of 6082 backedges. 0 proven. 2033 refuted. 0 times theorem prover too weak. 4049 trivial. 0 not checked. [2024-09-20 13:07:06,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 13:07:06,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886043656] [2024-09-20 13:07:06,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886043656] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-20 13:07:06,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1880018621] [2024-09-20 13:07:06,432 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-20 13:07:06,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 13:07:06,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 13:07:06,434 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) [2024-09-20 13:07:06,436 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-20 13:07:06,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:06,664 INFO L262 TraceCheckSpWp]: Trace formula consists of 1047 conjuncts, 271 conjuncts are in the unsatisfiable core [2024-09-20 13:07:06,672 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 13:07:07,307 INFO L134 CoverageAnalysis]: Checked inductivity of 6082 backedges. 0 proven. 2033 refuted. 0 times theorem prover too weak. 4049 trivial. 0 not checked. [2024-09-20 13:07:07,307 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-20 13:07:09,320 INFO L134 CoverageAnalysis]: Checked inductivity of 6082 backedges. 0 proven. 2033 refuted. 0 times theorem prover too weak. 4049 trivial. 0 not checked. [2024-09-20 13:07:09,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1880018621] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-20 13:07:09,320 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-20 13:07:09,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40, 40] total 52 [2024-09-20 13:07:09,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313689141] [2024-09-20 13:07:09,320 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-20 13:07:09,321 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-09-20 13:07:09,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 13:07:09,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-09-20 13:07:09,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=2527, Unknown=0, NotChecked=0, Total=2652 [2024-09-20 13:07:09,323 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) [2024-09-20 13:07:09,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 13:07:09,918 INFO L93 Difference]: Finished difference Result 235 states and 297 transitions. [2024-09-20 13:07:09,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-09-20 13:07:09,919 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 [2024-09-20 13:07:09,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 13:07:09,922 INFO L225 Difference]: With dead ends: 235 [2024-09-20 13:07:09,922 INFO L226 Difference]: Without dead ends: 228 [2024-09-20 13:07:09,923 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1198 GetRequests, 1148 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=125, Invalid=2527, Unknown=0, NotChecked=0, Total=2652 [2024-09-20 13:07:09,923 INFO L434 NwaCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 3014 mSDsCounter, 0 mSdLazyCounter, 1682 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 3090 SdHoareTripleChecker+Invalid, 1682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-20 13:07:09,923 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 3090 Invalid, 1682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1682 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-20 13:07:09,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-09-20 13:07:09,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 223. [2024-09-20 13:07:09,953 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) [2024-09-20 13:07:09,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 285 transitions. [2024-09-20 13:07:09,956 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 285 transitions. Word has length 463 [2024-09-20 13:07:09,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 13:07:09,956 INFO L474 AbstractCegarLoop]: Abstraction has 223 states and 285 transitions. [2024-09-20 13:07:09,957 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) [2024-09-20 13:07:09,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:07:09,957 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 285 transitions. [2024-09-20 13:07:09,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2024-09-20 13:07:09,960 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 13:07:09,960 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] [2024-09-20 13:07:09,976 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-09-20 13:07:10,160 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 [2024-09-20 13:07:10,161 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 13:07:10,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:07:10,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1879272131, now seen corresponding path program 8 times [2024-09-20 13:07:10,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 13:07:10,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214503343] [2024-09-20 13:07:10,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:07:10,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 13:07:10,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:10,383 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 13:07:10,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:10,385 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-20 13:07:10,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:10,603 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:10,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:10,733 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:10,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:10,812 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:10,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:10,867 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:10,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:10,906 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:10,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:10,942 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:10,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:10,976 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:10,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:10,991 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:07:10,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:10,994 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:07:10,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:10,996 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 13:07:10,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:10,999 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:11,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,000 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:07:11,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,001 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-20 13:07:11,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,007 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:11,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,008 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:11,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,009 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:07:11,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,010 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:07:11,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,011 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-20 13:07:11,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,020 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:11,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,023 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:11,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,025 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:11,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,026 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:07:11,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,028 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:07:11,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,029 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 13:07:11,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,031 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:11,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,032 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:07:11,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,033 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-20 13:07:11,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,049 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:11,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,058 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:11,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,061 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:11,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,063 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:11,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,064 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:07:11,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,065 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:07:11,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,066 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 13:07:11,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,068 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:11,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,069 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:07:11,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,069 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-20 13:07:11,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,074 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:11,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,076 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:11,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,077 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:07:11,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,078 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:07:11,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,079 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-20 13:07:11,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,121 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:11,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,143 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:11,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,157 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:11,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,166 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:11,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,185 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:11,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,199 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:07:11,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,228 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-20 13:07:11,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,230 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-20 13:07:11,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,232 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:11,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,235 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:07:11,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,236 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-20 13:07:11,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,239 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:11,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,241 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:11,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,243 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:07:11,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,244 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:07:11,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,245 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-09-20 13:07:11,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,251 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:11,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,254 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:11,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,256 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:11,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,257 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:07:11,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,258 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:07:11,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,259 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 13:07:11,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,261 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:11,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,262 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:07:11,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:11,265 INFO L134 CoverageAnalysis]: Checked inductivity of 6137 backedges. 748 proven. 1131 refuted. 0 times theorem prover too weak. 4258 trivial. 0 not checked. [2024-09-20 13:07:11,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 13:07:11,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214503343] [2024-09-20 13:07:11,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214503343] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-20 13:07:11,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116092163] [2024-09-20 13:07:11,266 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-20 13:07:11,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 13:07:11,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 13:07:11,268 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) [2024-09-20 13:07:11,270 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-20 13:07:11,483 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-20 13:07:11,483 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-20 13:07:11,485 INFO L262 TraceCheckSpWp]: Trace formula consists of 1051 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-20 13:07:11,490 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 13:07:11,627 INFO L134 CoverageAnalysis]: Checked inductivity of 6137 backedges. 837 proven. 325 refuted. 0 times theorem prover too weak. 4975 trivial. 0 not checked. [2024-09-20 13:07:11,627 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-20 13:07:13,559 INFO L134 CoverageAnalysis]: Checked inductivity of 6137 backedges. 841 proven. 342 refuted. 0 times theorem prover too weak. 4954 trivial. 0 not checked. [2024-09-20 13:07:13,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116092163] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-20 13:07:13,559 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-20 13:07:13,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 12, 17] total 38 [2024-09-20 13:07:13,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796585952] [2024-09-20 13:07:13,560 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-20 13:07:13,561 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-09-20 13:07:13,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 13:07:13,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-09-20 13:07:13,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=1215, Unknown=0, NotChecked=0, Total=1406 [2024-09-20 13:07:13,562 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) [2024-09-20 13:07:14,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 13:07:14,249 INFO L93 Difference]: Finished difference Result 434 states and 588 transitions. [2024-09-20 13:07:14,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-09-20 13:07:14,249 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 [2024-09-20 13:07:14,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 13:07:14,252 INFO L225 Difference]: With dead ends: 434 [2024-09-20 13:07:14,252 INFO L226 Difference]: Without dead ends: 170 [2024-09-20 13:07:14,255 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1119 GetRequests, 1048 SyntacticMatches, 8 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1443 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=575, Invalid=3585, Unknown=0, NotChecked=0, Total=4160 [2024-09-20 13:07:14,256 INFO L434 NwaCegarLoop]: 46 mSDtfsCounter, 104 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2024-09-20 13:07:14,257 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] [2024-09-20 13:07:14,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-09-20 13:07:14,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 165. [2024-09-20 13:07:14,278 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) [2024-09-20 13:07:14,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 188 transitions. [2024-09-20 13:07:14,279 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 188 transitions. Word has length 465 [2024-09-20 13:07:14,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 13:07:14,280 INFO L474 AbstractCegarLoop]: Abstraction has 165 states and 188 transitions. [2024-09-20 13:07:14,280 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) [2024-09-20 13:07:14,280 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:07:14,280 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 188 transitions. [2024-09-20 13:07:14,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2024-09-20 13:07:14,282 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 13:07:14,283 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] [2024-09-20 13:07:14,300 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-09-20 13:07:14,487 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 [2024-09-20 13:07:14,488 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 13:07:14,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:07:14,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1544679608, now seen corresponding path program 9 times [2024-09-20 13:07:14,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 13:07:14,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391113728] [2024-09-20 13:07:14,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:07:14,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 13:07:14,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:14,807 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 13:07:14,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:14,808 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-20 13:07:14,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,088 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:15,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,275 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:15,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,380 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:15,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,438 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:15,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,480 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:15,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,499 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:15,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,502 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:15,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,503 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:15,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,504 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:07:15,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,505 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:07:15,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,505 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 13:07:15,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,537 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:15,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,540 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:07:15,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,542 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-20 13:07:15,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,546 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:15,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,547 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:15,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,548 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:07:15,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,548 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:07:15,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,549 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-20 13:07:15,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,556 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:15,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,558 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:15,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,559 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:15,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,560 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:07:15,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,561 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:07:15,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,562 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 13:07:15,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,564 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:15,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,565 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:07:15,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,566 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-20 13:07:15,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,607 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:15,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,641 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:15,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,669 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:15,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,680 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:07:15,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,681 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:07:15,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,683 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 13:07:15,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,685 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:15,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,686 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:07:15,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,687 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2024-09-20 13:07:15,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,695 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:15,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,698 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:15,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,700 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:15,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,701 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:15,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,702 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:07:15,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,703 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:07:15,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,703 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 13:07:15,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,705 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:15,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,705 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:07:15,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,706 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-20 13:07:15,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,709 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:15,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,710 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:15,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,711 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:07:15,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,712 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:07:15,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,713 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-09-20 13:07:15,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,725 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:15,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,730 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:15,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,734 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:15,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,736 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:15,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,737 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:15,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,738 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:07:15,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,738 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:07:15,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,739 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 13:07:15,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,740 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:15,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,741 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:07:15,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,742 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-20 13:07:15,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,745 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:15,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,746 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:15,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,747 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:07:15,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,748 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:07:15,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,748 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-20 13:07:15,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,753 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:15,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,756 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:15,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,758 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:15,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,759 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:07:15,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,760 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 13:07:15,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,761 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 13:07:15,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,763 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-20 13:07:15,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,764 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-20 13:07:15,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:07:15,766 INFO L134 CoverageAnalysis]: Checked inductivity of 8086 backedges. 575 proven. 1278 refuted. 0 times theorem prover too weak. 6233 trivial. 0 not checked. [2024-09-20 13:07:15,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 13:07:15,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391113728] [2024-09-20 13:07:15,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391113728] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-20 13:07:15,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956857503] [2024-09-20 13:07:15,767 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-20 13:07:15,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 13:07:15,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 13:07:15,769 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) [2024-09-20 13:07:15,771 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-20 13:07:16,015 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 30 check-sat command(s) [2024-09-20 13:07:16,016 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-20 13:07:16,018 INFO L262 TraceCheckSpWp]: Trace formula consists of 1000 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-20 13:07:16,023 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 13:07:16,153 INFO L134 CoverageAnalysis]: Checked inductivity of 8086 backedges. 423 proven. 918 refuted. 0 times theorem prover too weak. 6745 trivial. 0 not checked. [2024-09-20 13:07:16,153 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-20 13:07:18,447 INFO L134 CoverageAnalysis]: Checked inductivity of 8086 backedges. 429 proven. 936 refuted. 0 times theorem prover too weak. 6721 trivial. 0 not checked. [2024-09-20 13:07:18,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1956857503] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-20 13:07:18,447 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-20 13:07:18,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 12, 17] total 36 [2024-09-20 13:07:18,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333549646] [2024-09-20 13:07:18,448 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-20 13:07:18,448 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-09-20 13:07:18,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 13:07:18,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-09-20 13:07:18,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=1075, Unknown=0, NotChecked=0, Total=1260 [2024-09-20 13:07:18,450 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) [2024-09-20 13:07:18,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 13:07:18,918 INFO L93 Difference]: Finished difference Result 276 states and 315 transitions. [2024-09-20 13:07:18,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-09-20 13:07:18,919 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 [2024-09-20 13:07:18,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 13:07:18,921 INFO L225 Difference]: With dead ends: 276 [2024-09-20 13:07:18,921 INFO L226 Difference]: Without dead ends: 0 [2024-09-20 13:07:18,922 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1252 GetRequests, 1197 SyntacticMatches, 8 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 854 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=343, Invalid=2009, Unknown=0, NotChecked=0, Total=2352 [2024-09-20 13:07:18,923 INFO L434 NwaCegarLoop]: 37 mSDtfsCounter, 60 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 801 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2024-09-20 13:07:18,924 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] [2024-09-20 13:07:18,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-20 13:07:18,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-20 13:07:18,924 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) [2024-09-20 13:07:18,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-20 13:07:18,925 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 531 [2024-09-20 13:07:18,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 13:07:18,926 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-20 13:07:18,926 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) [2024-09-20 13:07:18,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:07:18,926 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-20 13:07:18,926 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-20 13:07:18,929 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-09-20 13:07:18,947 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-09-20 13:07:19,129 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 [2024-09-20 13:07:19,134 INFO L408 BasicCegarLoop]: Path program histogram: [9, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 13:07:19,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-09-20 13:07:30,147 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-20 13:07:30,166 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-09-20 13:07:30,181 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-09-20 13:07:30,182 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:07:30 BoogieIcfgContainer [2024-09-20 13:07:30,182 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-20 13:07:30,183 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-09-20 13:07:30,183 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-09-20 13:07:30,183 INFO L274 PluginConnector]: Witness Printer initialized [2024-09-20 13:07:30,183 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:06:26" (3/4) ... [2024-09-20 13:07:30,185 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-09-20 13:07:30,240 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml [2024-09-20 13:07:30,240 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-09-20 13:07:30,241 INFO L158 Benchmark]: Toolchain (without parser) took 64343.89ms. Allocated memory was 172.0MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 122.9MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 108.3MB. Max. memory is 16.1GB. [2024-09-20 13:07:30,241 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 172.0MB. Free memory is still 139.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:07:30,242 INFO L158 Benchmark]: CACSL2BoogieTranslator took 196.08ms. Allocated memory is still 172.0MB. Free memory was 122.5MB in the beginning and 111.3MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-20 13:07:30,242 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.99ms. Allocated memory is still 172.0MB. Free memory was 111.3MB in the beginning and 110.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:07:30,242 INFO L158 Benchmark]: Boogie Preprocessor took 33.43ms. Allocated memory is still 172.0MB. Free memory was 110.3MB in the beginning and 108.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-20 13:07:30,243 INFO L158 Benchmark]: RCFGBuilder took 327.03ms. Allocated memory is still 172.0MB. Free memory was 108.5MB in the beginning and 96.0MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-20 13:07:30,243 INFO L158 Benchmark]: TraceAbstraction took 63704.32ms. Allocated memory was 172.0MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 95.2MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 691.3MB. Max. memory is 16.1GB. [2024-09-20 13:07:30,243 INFO L158 Benchmark]: Witness Printer took 57.31ms. Allocated memory is still 1.4GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-20 13:07:30,247 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 172.0MB. Free memory is still 139.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 196.08ms. Allocated memory is still 172.0MB. Free memory was 122.5MB in the beginning and 111.3MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.99ms. Allocated memory is still 172.0MB. Free memory was 111.3MB in the beginning and 110.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.43ms. Allocated memory is still 172.0MB. Free memory was 110.3MB in the beginning and 108.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 327.03ms. Allocated memory is still 172.0MB. Free memory was 108.5MB in the beginning and 96.0MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 63704.32ms. Allocated memory was 172.0MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 95.2MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 691.3MB. Max. memory is 16.1GB. * Witness Printer took 57.31ms. Allocated memory is still 1.4GB. Free memory was 1.3GB in the beginning and 1.3GB 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: 52.6s, OverallIterations: 17, TraceHistogramMax: 40, PathProgramHistogramMax: 9, EmptinessCheckTime: 0.1s, AutomataDifference: 7.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 972 SdHoareTripleChecker+Valid, 4.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 882 mSDsluCounter, 9170 SdHoareTripleChecker+Invalid, 4.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8524 mSDsCounter, 821 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10124 IncrementalHoareTripleChecker+Invalid, 10945 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 821 mSolverCounterUnsat, 646 mSDtfsCounter, 10124 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, 6.4s 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: 0.4s AutomataMinimizationTime, 17 MinimizatonAttempts, 229 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 39.2s 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! [2024-09-20 13:07:30,275 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE