./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive-simple/sum_25x0-1.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 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 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/sum_25x0-1.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 8ec6e434f91e1569e6fad03794f07a751e615694ef413649174052dcc7984987 --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-12 19:55:31,799 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 19:55:31,885 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 19:55:31,891 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 19:55:31,891 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 19:55:31,916 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 19:55:31,918 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 19:55:31,919 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 19:55:31,919 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 19:55:31,920 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 19:55:31,920 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 19:55:31,923 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 19:55:31,924 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 19:55:31,924 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 19:55:31,924 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 19:55:31,925 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 19:55:31,925 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 19:55:31,925 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 19:55:31,926 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 19:55:31,926 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 19:55:31,930 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 19:55:31,934 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 19:55:31,934 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 19:55:31,935 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 19:55:31,935 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 19:55:31,936 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 19:55:31,936 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 19:55:31,936 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 19:55:31,937 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 19:55:31,937 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 19:55:31,938 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 19:55:31,938 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 19:55:31,938 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:55:31,943 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 19:55:31,944 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 19:55:31,944 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 19:55:31,945 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 19:55:31,945 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 19:55:31,945 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 19:55:31,946 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 19:55:31,946 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 19:55:31,947 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 19:55:31,948 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ec6e434f91e1569e6fad03794f07a751e615694ef413649174052dcc7984987 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 19:55:32,270 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 19:55:32,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 19:55:32,293 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 19:55:32,294 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 19:55:32,295 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 19:55:32,296 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/recursive-simple/sum_25x0-1.c [2024-09-12 19:55:33,860 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 19:55:34,051 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 19:55:34,052 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-simple/sum_25x0-1.c [2024-09-12 19:55:34,058 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/bb4bd03ac/6db6835428984d3494d1c81f5fa6e427/FLAGe7a93a2aa [2024-09-12 19:55:34,069 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/bb4bd03ac/6db6835428984d3494d1c81f5fa6e427 [2024-09-12 19:55:34,070 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 19:55:34,072 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 19:55:34,073 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 19:55:34,073 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 19:55:34,078 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 19:55:34,079 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:55:34" (1/1) ... [2024-09-12 19:55:34,080 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42819cc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:55:34, skipping insertion in model container [2024-09-12 19:55:34,080 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:55:34" (1/1) ... [2024-09-12 19:55:34,106 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 19:55:34,251 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-simple/sum_25x0-1.c[481,494] [2024-09-12 19:55:34,255 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:55:34,271 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 19:55:34,284 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-simple/sum_25x0-1.c[481,494] [2024-09-12 19:55:34,287 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:55:34,306 INFO L204 MainTranslator]: Completed translation [2024-09-12 19:55:34,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:55:34 WrapperNode [2024-09-12 19:55:34,307 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 19:55:34,308 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 19:55:34,309 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 19:55:34,309 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 19:55:34,315 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:55:34" (1/1) ... [2024-09-12 19:55:34,322 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:55:34" (1/1) ... [2024-09-12 19:55:34,328 INFO L138 Inliner]: procedures = 12, calls = 9, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 19:55:34,328 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 19:55:34,329 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 19:55:34,329 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 19:55:34,329 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 19:55:34,338 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:55:34" (1/1) ... [2024-09-12 19:55:34,339 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:55:34" (1/1) ... [2024-09-12 19:55:34,339 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:55:34" (1/1) ... [2024-09-12 19:55:34,357 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]. [2024-09-12 19:55:34,357 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:55:34" (1/1) ... [2024-09-12 19:55:34,357 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:55:34" (1/1) ... [2024-09-12 19:55:34,362 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:55:34" (1/1) ... [2024-09-12 19:55:34,363 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:55:34" (1/1) ... [2024-09-12 19:55:34,364 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:55:34" (1/1) ... [2024-09-12 19:55:34,364 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:55:34" (1/1) ... [2024-09-12 19:55:34,366 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 19:55:34,370 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 19:55:34,370 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 19:55:34,370 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 19:55:34,371 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:55:34" (1/1) ... [2024-09-12 19:55:34,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:55:34,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:55:34,402 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) [2024-09-12 19:55:34,405 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 [2024-09-12 19:55:34,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 19:55:34,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 19:55:34,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 19:55:34,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 19:55:34,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 19:55:34,447 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2024-09-12 19:55:34,447 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2024-09-12 19:55:34,447 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 19:55:34,449 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 19:55:34,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 19:55:34,500 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 19:55:34,501 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 19:55:34,697 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-09-12 19:55:34,698 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 19:55:34,725 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 19:55:34,728 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-12 19:55:34,728 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:55:34 BoogieIcfgContainer [2024-09-12 19:55:34,729 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 19:55:34,731 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 19:55:34,732 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 19:55:34,735 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 19:55:34,735 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 07:55:34" (1/3) ... [2024-09-12 19:55:34,736 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@118d6863 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:55:34, skipping insertion in model container [2024-09-12 19:55:34,737 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:55:34" (2/3) ... [2024-09-12 19:55:34,737 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@118d6863 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:55:34, skipping insertion in model container [2024-09-12 19:55:34,738 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:55:34" (3/3) ... [2024-09-12 19:55:34,739 INFO L112 eAbstractionObserver]: Analyzing ICFG sum_25x0-1.c [2024-09-12 19:55:34,756 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 19:55:34,757 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2024-09-12 19:55:34,818 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 19:55:34,824 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;@3c428720, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 19:55:34,824 INFO L337 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-09-12 19:55:34,827 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 28 states have internal predecessors, (30), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:55:34,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-09-12 19:55:34,834 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:55:34,834 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:55:34,835 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 19:55:34,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:55:34,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1061827771, now seen corresponding path program 1 times [2024-09-12 19:55:34,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:55:34,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403772083] [2024-09-12 19:55:34,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:55:34,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:55:34,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:35,023 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:55:35,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:35,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:55:35,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:55:35,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403772083] [2024-09-12 19:55:35,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403772083] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:55:35,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:55:35,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:55:35,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095894123] [2024-09-12 19:55:35,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:55:35,042 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:55:35,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:55:35,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:55:35,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:55:35,066 INFO L87 Difference]: Start difference. First operand has 36 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 28 states have internal predecessors, (30), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:55:35,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:55:35,188 INFO L93 Difference]: Finished difference Result 68 states and 71 transitions. [2024-09-12 19:55:35,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:55:35,190 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2024-09-12 19:55:35,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:55:35,197 INFO L225 Difference]: With dead ends: 68 [2024-09-12 19:55:35,197 INFO L226 Difference]: Without dead ends: 45 [2024-09-12 19:55:35,199 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:55:35,203 INFO L434 NwaCegarLoop]: 25 mSDtfsCounter, 23 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:55:35,204 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 90 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:55:35,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-09-12 19:55:35,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2024-09-12 19:55:35,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 25 states have (on average 1.48) internal successors, (37), 33 states have internal predecessors, (37), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:55:35,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2024-09-12 19:55:35,252 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 9 [2024-09-12 19:55:35,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:55:35,252 INFO L474 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2024-09-12 19:55:35,253 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:55:35,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:55:35,254 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2024-09-12 19:55:35,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-09-12 19:55:35,255 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:55:35,255 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:55:35,256 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 19:55:35,256 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting sumErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 19:55:35,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:55:35,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1443082474, now seen corresponding path program 1 times [2024-09-12 19:55:35,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:55:35,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937773620] [2024-09-12 19:55:35,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:55:35,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:55:35,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:35,355 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:55:35,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:35,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:55:35,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:55:35,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937773620] [2024-09-12 19:55:35,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937773620] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:55:35,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:55:35,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:55:35,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905040850] [2024-09-12 19:55:35,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:55:35,371 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:55:35,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:55:35,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:55:35,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:55:35,372 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:55:35,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:55:35,450 INFO L93 Difference]: Finished difference Result 44 states and 49 transitions. [2024-09-12 19:55:35,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:55:35,451 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2024-09-12 19:55:35,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:55:35,453 INFO L225 Difference]: With dead ends: 44 [2024-09-12 19:55:35,453 INFO L226 Difference]: Without dead ends: 43 [2024-09-12 19:55:35,454 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:55:35,455 INFO L434 NwaCegarLoop]: 15 mSDtfsCounter, 28 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:55:35,455 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 41 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:55:35,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-09-12 19:55:35,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2024-09-12 19:55:35,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 25 states have (on average 1.4) internal successors, (35), 32 states have internal predecessors, (35), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:55:35,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2024-09-12 19:55:35,484 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 10 [2024-09-12 19:55:35,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:55:35,485 INFO L474 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2024-09-12 19:55:35,485 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:55:35,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:55:35,486 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2024-09-12 19:55:35,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-09-12 19:55:35,486 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:55:35,486 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:55:35,486 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 19:55:35,486 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 19:55:35,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:55:35,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1785883783, now seen corresponding path program 1 times [2024-09-12 19:55:35,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:55:35,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205600824] [2024-09-12 19:55:35,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:55:35,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:55:35,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:35,599 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:55:35,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:35,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:55:35,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:55:35,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205600824] [2024-09-12 19:55:35,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205600824] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:55:35,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:55:35,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:55:35,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255907170] [2024-09-12 19:55:35,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:55:35,611 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:55:35,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:55:35,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:55:35,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:55:35,612 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:55:35,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:55:35,676 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2024-09-12 19:55:35,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:55:35,678 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-09-12 19:55:35,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:55:35,679 INFO L225 Difference]: With dead ends: 43 [2024-09-12 19:55:35,679 INFO L226 Difference]: Without dead ends: 41 [2024-09-12 19:55:35,679 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:55:35,680 INFO L434 NwaCegarLoop]: 23 mSDtfsCounter, 15 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:55:35,681 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 80 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:55:35,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-09-12 19:55:35,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-09-12 19:55:35,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 25 states have (on average 1.32) internal successors, (33), 32 states have internal predecessors, (33), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:55:35,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2024-09-12 19:55:35,693 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 11 [2024-09-12 19:55:35,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:55:35,693 INFO L474 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2024-09-12 19:55:35,693 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:55:35,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:55:35,694 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2024-09-12 19:55:35,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-09-12 19:55:35,695 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:55:35,695 INFO L216 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:55:35,695 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-12 19:55:35,695 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 19:55:35,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:55:35,696 INFO L85 PathProgramCache]: Analyzing trace with hash -2122247451, now seen corresponding path program 1 times [2024-09-12 19:55:35,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:55:35,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826913429] [2024-09-12 19:55:35,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:55:35,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:55:35,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:35,813 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:55:35,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:35,822 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:55:35,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:55:35,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826913429] [2024-09-12 19:55:35,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826913429] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:55:35,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836679157] [2024-09-12 19:55:35,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:55:35,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:55:35,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:55:35,825 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) [2024-09-12 19:55:35,827 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-12 19:55:35,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:35,869 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 19:55:35,874 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:55:35,918 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:55:35,918 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:55:36,000 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:55:36,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836679157] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:55:36,000 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:55:36,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2024-09-12 19:55:36,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160265186] [2024-09-12 19:55:36,001 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:55:36,001 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 19:55:36,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:55:36,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 19:55:36,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:55:36,003 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand has 12 states, 10 states have (on average 2.0) internal successors, (20), 8 states have internal predecessors, (20), 5 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:55:36,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:55:36,189 INFO L93 Difference]: Finished difference Result 97 states and 106 transitions. [2024-09-12 19:55:36,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 19:55:36,191 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 2.0) internal successors, (20), 8 states have internal predecessors, (20), 5 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2024-09-12 19:55:36,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:55:36,192 INFO L225 Difference]: With dead ends: 97 [2024-09-12 19:55:36,192 INFO L226 Difference]: Without dead ends: 78 [2024-09-12 19:55:36,193 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-09-12 19:55:36,194 INFO L434 NwaCegarLoop]: 27 mSDtfsCounter, 94 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:55:36,194 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 144 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:55:36,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-09-12 19:55:36,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 70. [2024-09-12 19:55:36,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 49 states have (on average 1.2653061224489797) internal successors, (62), 55 states have internal predecessors, (62), 8 states have call successors, (8), 7 states have call predecessors, (8), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:55:36,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 77 transitions. [2024-09-12 19:55:36,217 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 77 transitions. Word has length 16 [2024-09-12 19:55:36,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:55:36,217 INFO L474 AbstractCegarLoop]: Abstraction has 70 states and 77 transitions. [2024-09-12 19:55:36,218 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 2.0) internal successors, (20), 8 states have internal predecessors, (20), 5 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:55:36,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:55:36,218 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 77 transitions. [2024-09-12 19:55:36,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-09-12 19:55:36,218 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:55:36,219 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:55:36,231 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-12 19:55:36,419 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:55:36,420 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 19:55:36,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:55:36,420 INFO L85 PathProgramCache]: Analyzing trace with hash 629820455, now seen corresponding path program 1 times [2024-09-12 19:55:36,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:55:36,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593481080] [2024-09-12 19:55:36,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:55:36,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:55:36,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:36,515 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:55:36,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:36,520 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:55:36,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:55:36,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593481080] [2024-09-12 19:55:36,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593481080] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:55:36,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908866553] [2024-09-12 19:55:36,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:55:36,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:55:36,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:55:36,525 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) [2024-09-12 19:55:36,528 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-12 19:55:36,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:36,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:55:36,567 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:55:36,619 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:55:36,620 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:55:36,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908866553] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:55:36,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:55:36,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-09-12 19:55:36,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406574781] [2024-09-12 19:55:36,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:55:36,621 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:55:36,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:55:36,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:55:36,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:55:36,622 INFO L87 Difference]: Start difference. First operand 70 states and 77 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:55:36,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:55:36,693 INFO L93 Difference]: Finished difference Result 72 states and 80 transitions. [2024-09-12 19:55:36,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:55:36,695 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2024-09-12 19:55:36,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:55:36,697 INFO L225 Difference]: With dead ends: 72 [2024-09-12 19:55:36,697 INFO L226 Difference]: Without dead ends: 71 [2024-09-12 19:55:36,697 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:55:36,700 INFO L434 NwaCegarLoop]: 27 mSDtfsCounter, 26 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:55:36,700 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 65 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:55:36,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-09-12 19:55:36,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 69. [2024-09-12 19:55:36,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 49 states have (on average 1.183673469387755) internal successors, (58), 54 states have internal predecessors, (58), 8 states have call successors, (8), 7 states have call predecessors, (8), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:55:36,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 73 transitions. [2024-09-12 19:55:36,735 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 73 transitions. Word has length 18 [2024-09-12 19:55:36,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:55:36,736 INFO L474 AbstractCegarLoop]: Abstraction has 69 states and 73 transitions. [2024-09-12 19:55:36,736 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:55:36,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:55:36,736 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 73 transitions. [2024-09-12 19:55:36,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-09-12 19:55:36,737 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:55:36,738 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:55:36,755 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-12 19:55:36,938 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:55:36,939 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 19:55:36,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:55:36,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1950402324, now seen corresponding path program 1 times [2024-09-12 19:55:36,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:55:36,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980681300] [2024-09-12 19:55:36,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:55:36,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:55:36,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:37,041 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:55:37,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:37,045 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:55:37,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:55:37,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980681300] [2024-09-12 19:55:37,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980681300] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:55:37,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [415536684] [2024-09-12 19:55:37,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:55:37,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:55:37,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:55:37,049 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) [2024-09-12 19:55:37,056 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-12 19:55:37,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:37,101 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 19:55:37,102 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:55:37,154 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:55:37,155 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:55:37,233 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:55:37,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [415536684] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:55:37,234 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:55:37,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2024-09-12 19:55:37,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137423262] [2024-09-12 19:55:37,234 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:55:37,235 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 19:55:37,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:55:37,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 19:55:37,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-09-12 19:55:37,236 INFO L87 Difference]: Start difference. First operand 69 states and 73 transitions. Second operand has 15 states, 11 states have (on average 3.090909090909091) internal successors, (34), 10 states have internal predecessors, (34), 7 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:55:37,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:55:37,382 INFO L93 Difference]: Finished difference Result 72 states and 76 transitions. [2024-09-12 19:55:37,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 19:55:37,382 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 3.090909090909091) internal successors, (34), 10 states have internal predecessors, (34), 7 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2024-09-12 19:55:37,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:55:37,383 INFO L225 Difference]: With dead ends: 72 [2024-09-12 19:55:37,384 INFO L226 Difference]: Without dead ends: 71 [2024-09-12 19:55:37,384 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2024-09-12 19:55:37,385 INFO L434 NwaCegarLoop]: 27 mSDtfsCounter, 81 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:55:37,385 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 178 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:55:37,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-09-12 19:55:37,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 69. [2024-09-12 19:55:37,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 49 states have (on average 1.1224489795918366) internal successors, (55), 54 states have internal predecessors, (55), 8 states have call successors, (8), 7 states have call predecessors, (8), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:55:37,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 70 transitions. [2024-09-12 19:55:37,401 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 70 transitions. Word has length 19 [2024-09-12 19:55:37,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:55:37,402 INFO L474 AbstractCegarLoop]: Abstraction has 69 states and 70 transitions. [2024-09-12 19:55:37,402 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 3.090909090909091) internal successors, (34), 10 states have internal predecessors, (34), 7 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:55:37,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:55:37,402 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 70 transitions. [2024-09-12 19:55:37,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-09-12 19:55:37,403 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:55:37,403 INFO L216 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:55:37,421 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-12 19:55:37,607 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-12 19:55:37,608 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 19:55:37,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:55:37,608 INFO L85 PathProgramCache]: Analyzing trace with hash 571810629, now seen corresponding path program 2 times [2024-09-12 19:55:37,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:55:37,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663577936] [2024-09-12 19:55:37,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:55:37,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:55:37,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:37,831 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:55:37,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:37,838 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:55:37,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:55:37,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663577936] [2024-09-12 19:55:37,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663577936] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:55:37,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511761324] [2024-09-12 19:55:37,839 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:55:37,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:55:37,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:55:37,842 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) [2024-09-12 19:55:37,843 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-12 19:55:37,889 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:55:37,889 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:55:37,890 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 19:55:37,892 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:55:37,958 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:55:37,958 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:55:38,143 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:55:38,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1511761324] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:55:38,143 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:55:38,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 24 [2024-09-12 19:55:38,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390505588] [2024-09-12 19:55:38,143 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:55:38,144 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-12 19:55:38,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:55:38,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-12 19:55:38,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2024-09-12 19:55:38,145 INFO L87 Difference]: Start difference. First operand 69 states and 70 transitions. Second operand has 24 states, 22 states have (on average 2.5454545454545454) internal successors, (56), 14 states have internal predecessors, (56), 11 states have call successors, (12), 11 states have call predecessors, (12), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:55:38,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:55:38,490 INFO L93 Difference]: Finished difference Result 164 states and 176 transitions. [2024-09-12 19:55:38,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-09-12 19:55:38,491 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 2.5454545454545454) internal successors, (56), 14 states have internal predecessors, (56), 11 states have call successors, (12), 11 states have call predecessors, (12), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2024-09-12 19:55:38,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:55:38,492 INFO L225 Difference]: With dead ends: 164 [2024-09-12 19:55:38,493 INFO L226 Difference]: Without dead ends: 137 [2024-09-12 19:55:38,493 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=311, Invalid=811, Unknown=0, NotChecked=0, Total=1122 [2024-09-12 19:55:38,494 INFO L434 NwaCegarLoop]: 38 mSDtfsCounter, 235 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:55:38,494 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 288 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:55:38,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-09-12 19:55:38,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 129. [2024-09-12 19:55:38,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 97 states have (on average 1.1237113402061856) internal successors, (109), 102 states have internal predecessors, (109), 14 states have call successors, (14), 13 states have call predecessors, (14), 12 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 19:55:38,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 136 transitions. [2024-09-12 19:55:38,520 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 136 transitions. Word has length 37 [2024-09-12 19:55:38,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:55:38,520 INFO L474 AbstractCegarLoop]: Abstraction has 129 states and 136 transitions. [2024-09-12 19:55:38,521 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 2.5454545454545454) internal successors, (56), 14 states have internal predecessors, (56), 11 states have call successors, (12), 11 states have call predecessors, (12), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:55:38,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:55:38,523 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 136 transitions. [2024-09-12 19:55:38,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-09-12 19:55:38,524 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:55:38,524 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:55:38,542 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-12 19:55:38,724 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:55:38,725 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 19:55:38,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:55:38,725 INFO L85 PathProgramCache]: Analyzing trace with hash 974965900, now seen corresponding path program 2 times [2024-09-12 19:55:38,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:55:38,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74419837] [2024-09-12 19:55:38,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:55:38,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:55:38,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:38,885 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:55:38,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:38,889 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:55:38,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:55:38,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74419837] [2024-09-12 19:55:38,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74419837] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:55:38,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120012767] [2024-09-12 19:55:38,890 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:55:38,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:55:38,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:55:38,893 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) [2024-09-12 19:55:38,895 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-12 19:55:38,935 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:55:38,936 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:55:38,936 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 19:55:38,939 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:55:39,017 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:55:39,017 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:55:39,209 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:55:39,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2120012767] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:55:39,209 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:55:39,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 26 [2024-09-12 19:55:39,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753530239] [2024-09-12 19:55:39,210 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:55:39,210 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-09-12 19:55:39,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:55:39,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-09-12 19:55:39,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=538, Unknown=0, NotChecked=0, Total=702 [2024-09-12 19:55:39,212 INFO L87 Difference]: Start difference. First operand 129 states and 136 transitions. Second operand has 27 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 16 states have internal predecessors, (70), 13 states have call successors, (14), 12 states have call predecessors, (14), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:55:39,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:55:39,533 INFO L93 Difference]: Finished difference Result 132 states and 139 transitions. [2024-09-12 19:55:39,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-09-12 19:55:39,534 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 16 states have internal predecessors, (70), 13 states have call successors, (14), 12 states have call predecessors, (14), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2024-09-12 19:55:39,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:55:39,535 INFO L225 Difference]: With dead ends: 132 [2024-09-12 19:55:39,535 INFO L226 Difference]: Without dead ends: 131 [2024-09-12 19:55:39,536 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=341, Invalid=991, Unknown=0, NotChecked=0, Total=1332 [2024-09-12 19:55:39,537 INFO L434 NwaCegarLoop]: 39 mSDtfsCounter, 165 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:55:39,537 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 399 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:55:39,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-09-12 19:55:39,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 129. [2024-09-12 19:55:39,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 97 states have (on average 1.0618556701030928) internal successors, (103), 102 states have internal predecessors, (103), 14 states have call successors, (14), 13 states have call predecessors, (14), 12 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 19:55:39,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 130 transitions. [2024-09-12 19:55:39,570 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 130 transitions. Word has length 40 [2024-09-12 19:55:39,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:55:39,570 INFO L474 AbstractCegarLoop]: Abstraction has 129 states and 130 transitions. [2024-09-12 19:55:39,571 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 16 states have internal predecessors, (70), 13 states have call successors, (14), 12 states have call predecessors, (14), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:55:39,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:55:39,571 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 130 transitions. [2024-09-12 19:55:39,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-09-12 19:55:39,576 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:55:39,576 INFO L216 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:55:39,593 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-09-12 19:55:39,780 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-09-12 19:55:39,781 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 19:55:39,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:55:39,781 INFO L85 PathProgramCache]: Analyzing trace with hash -354769083, now seen corresponding path program 3 times [2024-09-12 19:55:39,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:55:39,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297284275] [2024-09-12 19:55:39,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:55:39,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:55:39,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:40,245 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:55:40,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:40,249 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:55:40,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:55:40,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297284275] [2024-09-12 19:55:40,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297284275] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:55:40,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063752095] [2024-09-12 19:55:40,250 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:55:40,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:55:40,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:55:40,251 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) [2024-09-12 19:55:40,252 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-12 19:55:40,287 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 19:55:40,287 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:55:40,288 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:55:40,290 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:55:40,393 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2024-09-12 19:55:40,393 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:55:40,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063752095] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:55:40,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:55:40,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [25] total 29 [2024-09-12 19:55:40,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174836791] [2024-09-12 19:55:40,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:55:40,394 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:55:40,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:55:40,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:55:40,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=635, Unknown=0, NotChecked=0, Total=812 [2024-09-12 19:55:40,396 INFO L87 Difference]: Start difference. First operand 129 states and 130 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:55:40,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:55:40,520 INFO L93 Difference]: Finished difference Result 131 states and 133 transitions. [2024-09-12 19:55:40,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 19:55:40,521 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 79 [2024-09-12 19:55:40,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:55:40,523 INFO L225 Difference]: With dead ends: 131 [2024-09-12 19:55:40,524 INFO L226 Difference]: Without dead ends: 130 [2024-09-12 19:55:40,524 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=193, Invalid=799, Unknown=0, NotChecked=0, Total=992 [2024-09-12 19:55:40,526 INFO L434 NwaCegarLoop]: 21 mSDtfsCounter, 28 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:55:40,527 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 84 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:55:40,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-09-12 19:55:40,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 128. [2024-09-12 19:55:40,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 97 states have (on average 1.0515463917525774) internal successors, (102), 101 states have internal predecessors, (102), 14 states have call successors, (14), 13 states have call predecessors, (14), 12 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 19:55:40,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 129 transitions. [2024-09-12 19:55:40,562 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 129 transitions. Word has length 79 [2024-09-12 19:55:40,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:55:40,563 INFO L474 AbstractCegarLoop]: Abstraction has 128 states and 129 transitions. [2024-09-12 19:55:40,563 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:55:40,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:55:40,563 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 129 transitions. [2024-09-12 19:55:40,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-09-12 19:55:40,564 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:55:40,564 INFO L216 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:55:40,580 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-12 19:55:40,768 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:55:40,769 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 19:55:40,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:55:40,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1887060357, now seen corresponding path program 1 times [2024-09-12 19:55:40,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:55:40,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316820661] [2024-09-12 19:55:40,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:55:40,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:55:40,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:41,226 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:55:41,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:41,229 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:55:41,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:55:41,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316820661] [2024-09-12 19:55:41,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316820661] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:55:41,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [486567750] [2024-09-12 19:55:41,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:55:41,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:55:41,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:55:41,232 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:55:41,234 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-12 19:55:41,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:41,286 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-12 19:55:41,288 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:55:41,393 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:55:41,393 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:55:41,993 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:55:41,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [486567750] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:55:41,994 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:55:41,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 48 [2024-09-12 19:55:41,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441665978] [2024-09-12 19:55:41,997 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:55:41,997 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-09-12 19:55:41,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:55:41,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-09-12 19:55:42,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=1700, Unknown=0, NotChecked=0, Total=2256 [2024-09-12 19:55:42,000 INFO L87 Difference]: Start difference. First operand 128 states and 129 transitions. Second operand has 48 states, 46 states have (on average 2.8043478260869565) internal successors, (129), 26 states have internal predecessors, (129), 23 states have call successors, (24), 23 states have call predecessors, (24), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:55:42,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:55:42,757 INFO L93 Difference]: Finished difference Result 306 states and 330 transitions. [2024-09-12 19:55:42,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-09-12 19:55:42,758 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 46 states have (on average 2.8043478260869565) internal successors, (129), 26 states have internal predecessors, (129), 23 states have call successors, (24), 23 states have call predecessors, (24), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 80 [2024-09-12 19:55:42,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:55:42,760 INFO L225 Difference]: With dead ends: 306 [2024-09-12 19:55:42,760 INFO L226 Difference]: Without dead ends: 262 [2024-09-12 19:55:42,762 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 924 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1337, Invalid=3493, Unknown=0, NotChecked=0, Total=4830 [2024-09-12 19:55:42,763 INFO L434 NwaCegarLoop]: 61 mSDtfsCounter, 589 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 591 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:55:42,763 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [591 Valid, 578 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:55:42,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2024-09-12 19:55:42,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 248. [2024-09-12 19:55:42,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 193 states have (on average 1.0880829015544042) internal successors, (210), 197 states have internal predecessors, (210), 26 states have call successors, (26), 25 states have call predecessors, (26), 24 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-09-12 19:55:42,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 261 transitions. [2024-09-12 19:55:42,801 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 261 transitions. Word has length 80 [2024-09-12 19:55:42,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:55:42,801 INFO L474 AbstractCegarLoop]: Abstraction has 248 states and 261 transitions. [2024-09-12 19:55:42,802 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 46 states have (on average 2.8043478260869565) internal successors, (129), 26 states have internal predecessors, (129), 23 states have call successors, (24), 23 states have call predecessors, (24), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:55:42,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:55:42,802 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 261 transitions. [2024-09-12 19:55:42,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-09-12 19:55:42,807 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:55:42,807 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:55:42,824 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-12 19:55:43,008 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:55:43,009 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 19:55:43,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:55:43,009 INFO L85 PathProgramCache]: Analyzing trace with hash 993577100, now seen corresponding path program 3 times [2024-09-12 19:55:43,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:55:43,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655440222] [2024-09-12 19:55:43,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:55:43,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:55:43,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:43,426 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:55:43,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:43,429 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:55:43,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:55:43,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655440222] [2024-09-12 19:55:43,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655440222] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:55:43,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979155708] [2024-09-12 19:55:43,430 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:55:43,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:55:43,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:55:43,432 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) [2024-09-12 19:55:43,434 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-12 19:55:43,491 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-09-12 19:55:43,491 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:55:43,493 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-12 19:55:43,496 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:55:43,643 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:55:43,644 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:55:44,194 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:55:44,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979155708] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:55:44,195 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:55:44,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 50 [2024-09-12 19:55:44,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531654739] [2024-09-12 19:55:44,195 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:55:44,195 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-09-12 19:55:44,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:55:44,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-09-12 19:55:44,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=608, Invalid=1942, Unknown=0, NotChecked=0, Total=2550 [2024-09-12 19:55:44,198 INFO L87 Difference]: Start difference. First operand 248 states and 261 transitions. Second operand has 51 states, 47 states have (on average 3.021276595744681) internal successors, (142), 28 states have internal predecessors, (142), 25 states have call successors, (26), 24 states have call predecessors, (26), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:55:44,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:55:44,857 INFO L93 Difference]: Finished difference Result 251 states and 264 transitions. [2024-09-12 19:55:44,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-09-12 19:55:44,858 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 47 states have (on average 3.021276595744681) internal successors, (142), 28 states have internal predecessors, (142), 25 states have call successors, (26), 24 states have call predecessors, (26), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2024-09-12 19:55:44,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:55:44,860 INFO L225 Difference]: With dead ends: 251 [2024-09-12 19:55:44,860 INFO L226 Difference]: Without dead ends: 250 [2024-09-12 19:55:44,862 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1158 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1391, Invalid=3865, Unknown=0, NotChecked=0, Total=5256 [2024-09-12 19:55:44,863 INFO L434 NwaCegarLoop]: 62 mSDtfsCounter, 452 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:55:44,863 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 639 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:55:44,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2024-09-12 19:55:44,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 248. [2024-09-12 19:55:44,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 193 states have (on average 1.0259067357512954) internal successors, (198), 197 states have internal predecessors, (198), 26 states have call successors, (26), 25 states have call predecessors, (26), 24 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-09-12 19:55:44,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 249 transitions. [2024-09-12 19:55:44,907 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 249 transitions. Word has length 82 [2024-09-12 19:55:44,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:55:44,907 INFO L474 AbstractCegarLoop]: Abstraction has 248 states and 249 transitions. [2024-09-12 19:55:44,908 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 47 states have (on average 3.021276595744681) internal successors, (142), 28 states have internal predecessors, (142), 25 states have call successors, (26), 24 states have call predecessors, (26), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:55:44,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:55:44,908 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 249 transitions. [2024-09-12 19:55:44,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-09-12 19:55:44,910 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:55:44,910 INFO L216 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:55:44,924 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-09-12 19:55:45,114 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:55:45,115 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 19:55:45,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:55:45,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1201617285, now seen corresponding path program 2 times [2024-09-12 19:55:45,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:55:45,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476896127] [2024-09-12 19:55:45,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:55:45,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:55:45,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:46,318 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:55:46,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:46,322 INFO L134 CoverageAnalysis]: Checked inductivity of 1661 backedges. 0 proven. 1661 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:55:46,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:55:46,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476896127] [2024-09-12 19:55:46,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476896127] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:55:46,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1072992343] [2024-09-12 19:55:46,323 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:55:46,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:55:46,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:55:46,326 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) [2024-09-12 19:55:46,327 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-12 19:55:46,394 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:55:46,395 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:55:46,397 INFO L262 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-09-12 19:55:46,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:55:47,990 INFO L134 CoverageAnalysis]: Checked inductivity of 1661 backedges. 0 proven. 1661 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:55:47,990 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:55:50,366 INFO L134 CoverageAnalysis]: Checked inductivity of 1661 backedges. 0 proven. 1661 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:55:50,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1072992343] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:55:50,366 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:55:50,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 145 [2024-09-12 19:55:50,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117156730] [2024-09-12 19:55:50,366 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:55:50,367 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 145 states [2024-09-12 19:55:50,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:55:50,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 145 interpolants. [2024-09-12 19:55:50,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2889, Invalid=17991, Unknown=0, NotChecked=0, Total=20880 [2024-09-12 19:55:50,375 INFO L87 Difference]: Start difference. First operand 248 states and 249 transitions. Second operand has 145 states, 142 states have (on average 2.9014084507042255) internal successors, (412), 76 states have internal predecessors, (412), 70 states have call successors, (71), 70 states have call predecessors, (71), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:55:55,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:55:55,197 INFO L93 Difference]: Finished difference Result 647 states and 716 transitions. [2024-09-12 19:55:55,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2024-09-12 19:55:55,198 INFO L78 Accepts]: Start accepts. Automaton has has 145 states, 142 states have (on average 2.9014084507042255) internal successors, (412), 76 states have internal predecessors, (412), 70 states have call successors, (71), 70 states have call predecessors, (71), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 164 [2024-09-12 19:55:55,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:55:55,201 INFO L225 Difference]: With dead ends: 647 [2024-09-12 19:55:55,201 INFO L226 Difference]: Without dead ends: 567 [2024-09-12 19:55:55,208 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 472 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 237 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13972 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=9614, Invalid=47268, Unknown=0, NotChecked=0, Total=56882 [2024-09-12 19:55:55,208 INFO L434 NwaCegarLoop]: 56 mSDtfsCounter, 2125 mSDsluCounter, 1168 mSDsCounter, 0 mSdLazyCounter, 1551 mSolverCounterSat, 261 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2125 SdHoareTripleChecker+Valid, 1224 SdHoareTripleChecker+Invalid, 1812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 261 IncrementalHoareTripleChecker+Valid, 1551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 19:55:55,209 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2125 Valid, 1224 Invalid, 1812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [261 Valid, 1551 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 19:55:55,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2024-09-12 19:55:55,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 521. [2024-09-12 19:55:55,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 421 states have (on average 1.0617577197149644) internal successors, (447), 424 states have internal predecessors, (447), 49 states have call successors, (49), 48 states have call predecessors, (49), 47 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-09-12 19:55:55,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 544 transitions. [2024-09-12 19:55:55,298 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 544 transitions. Word has length 164 [2024-09-12 19:55:55,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:55:55,298 INFO L474 AbstractCegarLoop]: Abstraction has 521 states and 544 transitions. [2024-09-12 19:55:55,302 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 145 states, 142 states have (on average 2.9014084507042255) internal successors, (412), 76 states have internal predecessors, (412), 70 states have call successors, (71), 70 states have call predecessors, (71), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:55:55,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:55:55,302 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 544 transitions. [2024-09-12 19:55:55,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2024-09-12 19:55:55,306 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:55:55,307 INFO L216 NwaCegarLoop]: trace histogram [24, 24, 23, 23, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:55:55,322 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-12 19:55:55,507 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-09-12 19:55:55,507 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 19:55:55,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:55:55,508 INFO L85 PathProgramCache]: Analyzing trace with hash 654761204, now seen corresponding path program 1 times [2024-09-12 19:55:55,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:55:55,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612639130] [2024-09-12 19:55:55,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:55:55,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:55:55,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:55,638 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:55:55,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:55,641 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:55:55,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:55,710 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:55,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:55,776 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:55,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:55,833 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:55,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:55,878 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:55,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:55,921 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:55,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:55,952 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:55,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:55,986 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:55,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:56,011 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:56,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:56,034 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:56,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:56,061 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:56,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:56,083 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:56,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:56,101 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:56,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:56,123 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:56,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:56,142 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:56,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:56,157 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:56,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:56,198 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:56,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:56,211 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:56,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:56,221 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:56,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:56,229 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:56,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:56,236 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:56,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:56,241 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:56,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:56,245 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:56,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:56,248 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:56,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:56,254 INFO L134 CoverageAnalysis]: Checked inductivity of 2622 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2622 trivial. 0 not checked. [2024-09-12 19:55:56,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:55:56,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612639130] [2024-09-12 19:55:56,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612639130] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:55:56,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:55:56,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:55:56,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112651331] [2024-09-12 19:55:56,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:55:56,255 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:55:56,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:55:56,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:55:56,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:55:56,257 INFO L87 Difference]: Start difference. First operand 521 states and 544 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:55:56,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:55:56,342 INFO L93 Difference]: Finished difference Result 521 states and 544 transitions. [2024-09-12 19:55:56,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:55:56,343 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 244 [2024-09-12 19:55:56,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:55:56,347 INFO L225 Difference]: With dead ends: 521 [2024-09-12 19:55:56,347 INFO L226 Difference]: Without dead ends: 520 [2024-09-12 19:55:56,348 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:55:56,348 INFO L434 NwaCegarLoop]: 22 mSDtfsCounter, 2 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:55:56,349 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 41 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:55:56,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-09-12 19:55:56,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 520. [2024-09-12 19:55:56,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 421 states have (on average 1.0593824228028503) internal successors, (446), 423 states have internal predecessors, (446), 49 states have call successors, (49), 48 states have call predecessors, (49), 47 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-09-12 19:55:56,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 543 transitions. [2024-09-12 19:55:56,465 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 543 transitions. Word has length 244 [2024-09-12 19:55:56,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:55:56,466 INFO L474 AbstractCegarLoop]: Abstraction has 520 states and 543 transitions. [2024-09-12 19:55:56,466 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:55:56,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:55:56,466 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 543 transitions. [2024-09-12 19:55:56,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2024-09-12 19:55:56,469 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:55:56,469 INFO L216 NwaCegarLoop]: trace histogram [24, 24, 23, 23, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:55:56,469 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-09-12 19:55:56,469 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 19:55:56,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:55:56,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1177239095, now seen corresponding path program 1 times [2024-09-12 19:55:56,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:55:56,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804055560] [2024-09-12 19:55:56,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:55:56,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:55:56,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:56,564 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:55:56,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:56,566 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:55:56,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:56,640 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:56,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:56,682 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:56,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:56,724 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:56,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:56,759 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:56,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:56,792 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:56,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:56,858 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:56,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:56,886 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:56,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:56,912 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:56,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:56,935 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:56,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:56,957 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:56,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:56,977 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:56,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:56,995 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:56,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:57,014 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:57,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:57,034 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:57,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:57,050 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:57,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:57,061 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:57,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:57,071 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:57,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:57,080 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:57,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:57,087 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:57,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:57,093 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:57,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:57,099 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:57,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:57,103 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:57,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:57,106 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:57,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:57,111 INFO L134 CoverageAnalysis]: Checked inductivity of 2622 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2622 trivial. 0 not checked. [2024-09-12 19:55:57,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:55:57,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804055560] [2024-09-12 19:55:57,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804055560] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:55:57,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:55:57,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:55:57,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229553145] [2024-09-12 19:55:57,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:55:57,112 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:55:57,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:55:57,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:55:57,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:55:57,113 INFO L87 Difference]: Start difference. First operand 520 states and 543 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:55:57,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:55:57,236 INFO L93 Difference]: Finished difference Result 520 states and 543 transitions. [2024-09-12 19:55:57,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:55:57,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 245 [2024-09-12 19:55:57,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:55:57,240 INFO L225 Difference]: With dead ends: 520 [2024-09-12 19:55:57,240 INFO L226 Difference]: Without dead ends: 519 [2024-09-12 19:55:57,241 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:55:57,242 INFO L434 NwaCegarLoop]: 22 mSDtfsCounter, 1 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:55:57,242 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 41 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:55:57,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2024-09-12 19:55:57,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 519. [2024-09-12 19:55:57,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 421 states have (on average 1.0570071258907363) internal successors, (445), 422 states have internal predecessors, (445), 49 states have call successors, (49), 48 states have call predecessors, (49), 47 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-09-12 19:55:57,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 542 transitions. [2024-09-12 19:55:57,362 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 542 transitions. Word has length 245 [2024-09-12 19:55:57,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:55:57,363 INFO L474 AbstractCegarLoop]: Abstraction has 519 states and 542 transitions. [2024-09-12 19:55:57,363 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:55:57,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:55:57,363 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 542 transitions. [2024-09-12 19:55:57,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2024-09-12 19:55:57,367 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:55:57,367 INFO L216 NwaCegarLoop]: trace histogram [24, 24, 23, 23, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:55:57,367 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-09-12 19:55:57,367 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr2ASSERT_VIOLATIONERROR_FUNCTION === [sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 19:55:57,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:55:57,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1750369396, now seen corresponding path program 1 times [2024-09-12 19:55:57,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:55:57,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428515035] [2024-09-12 19:55:57,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:55:57,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:55:57,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:57,928 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:55:57,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:57,931 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:55:57,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:58,569 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:58,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:59,033 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:59,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:59,532 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:59,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:59,921 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:55:59,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:56:00,262 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:56:00,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:56:00,565 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:56:00,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:56:00,880 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:56:00,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:56:01,107 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:56:01,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:56:01,307 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:56:01,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:56:01,577 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:56:01,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:56:01,790 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:56:01,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:56:01,953 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:56:01,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:56:02,083 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:56:02,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:56:02,235 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:56:02,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:56:02,338 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:56:02,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:56:02,425 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:56:02,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:56:02,501 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:56:02,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:56:02,569 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:56:02,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:56:02,627 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:56:02,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:56:02,678 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:56:02,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:56:02,723 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:56:02,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:56:02,761 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:56:02,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:56:02,806 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:56:02,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:56:02,881 INFO L134 CoverageAnalysis]: Checked inductivity of 2622 backedges. 0 proven. 805 refuted. 0 times theorem prover too weak. 1817 trivial. 0 not checked. [2024-09-12 19:56:02,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:56:02,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428515035] [2024-09-12 19:56:02,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428515035] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:56:02,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410623741] [2024-09-12 19:56:02,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:56:02,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:56:02,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:56:02,885 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) [2024-09-12 19:56:02,886 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-12 19:56:02,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:56:02,998 INFO L262 TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-09-12 19:56:03,004 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:56:03,314 INFO L134 CoverageAnalysis]: Checked inductivity of 2622 backedges. 0 proven. 805 refuted. 0 times theorem prover too weak. 1817 trivial. 0 not checked. [2024-09-12 19:56:03,315 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:56:59,459 INFO L134 CoverageAnalysis]: Checked inductivity of 2622 backedges. 0 proven. 2346 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-09-12 19:56:59,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1410623741] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:56:59,460 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:56:59,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 28, 51] total 55 [2024-09-12 19:56:59,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165623763] [2024-09-12 19:56:59,460 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:56:59,461 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2024-09-12 19:56:59,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:56:59,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2024-09-12 19:56:59,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=783, Invalid=2187, Unknown=0, NotChecked=0, Total=2970 [2024-09-12 19:56:59,463 INFO L87 Difference]: Start difference. First operand 519 states and 542 transitions. Second operand has 55 states, 53 states have (on average 4.018867924528302) internal successors, (213), 55 states have internal predecessors, (213), 28 states have call successors, (29), 1 states have call predecessors, (29), 25 states have return successors, (72), 25 states have call predecessors, (72), 28 states have call successors, (72) [2024-09-12 19:57:00,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:57:00,387 INFO L93 Difference]: Finished difference Result 2986 states and 3032 transitions. [2024-09-12 19:57:00,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-09-12 19:57:00,388 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 53 states have (on average 4.018867924528302) internal successors, (213), 55 states have internal predecessors, (213), 28 states have call successors, (29), 1 states have call predecessors, (29), 25 states have return successors, (72), 25 states have call predecessors, (72), 28 states have call successors, (72) Word has length 247 [2024-09-12 19:57:00,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:57:00,402 INFO L225 Difference]: With dead ends: 2986 [2024-09-12 19:57:00,402 INFO L226 Difference]: Without dead ends: 2907 [2024-09-12 19:57:00,404 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 594 GetRequests, 494 SyntacticMatches, 24 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2679 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1979, Invalid=4027, Unknown=0, NotChecked=0, Total=6006 [2024-09-12 19:57:00,405 INFO L434 NwaCegarLoop]: 15 mSDtfsCounter, 102 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:57:00,406 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 250 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:57:00,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2907 states. [2024-09-12 19:57:00,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2907 to 517. [2024-09-12 19:57:00,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 419 states have (on average 1.0548926014319808) internal successors, (442), 420 states have internal predecessors, (442), 49 states have call successors, (49), 48 states have call predecessors, (49), 47 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-09-12 19:57:00,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 539 transitions. [2024-09-12 19:57:00,573 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 539 transitions. Word has length 247 [2024-09-12 19:57:00,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:57:00,574 INFO L474 AbstractCegarLoop]: Abstraction has 517 states and 539 transitions. [2024-09-12 19:57:00,574 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 53 states have (on average 4.018867924528302) internal successors, (213), 55 states have internal predecessors, (213), 28 states have call successors, (29), 1 states have call predecessors, (29), 25 states have return successors, (72), 25 states have call predecessors, (72), 28 states have call successors, (72) [2024-09-12 19:57:00,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:57:00,575 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 539 transitions. [2024-09-12 19:57:00,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2024-09-12 19:57:00,577 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:57:00,578 INFO L216 NwaCegarLoop]: trace histogram [25, 25, 24, 24, 24, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:57:00,596 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-09-12 19:57:00,781 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-12 19:57:00,782 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr2ASSERT_VIOLATIONERROR_FUNCTION === [sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 19:57:00,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:57:00,782 INFO L85 PathProgramCache]: Analyzing trace with hash -2024154048, now seen corresponding path program 2 times [2024-09-12 19:57:00,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:57:00,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514581289] [2024-09-12 19:57:00,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:57:00,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:57:00,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:57:01,277 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:57:01,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:57:01,279 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:57:01,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:57:01,737 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:57:01,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:57:02,103 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:57:02,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:57:02,490 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:57:02,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:57:02,800 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:57:02,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:57:03,080 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:57:03,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:57:03,350 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:57:03,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:57:03,575 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:57:03,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:57:03,771 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:57:03,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:57:03,978 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:57:03,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:57:04,140 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:57:04,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:57:04,296 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:57:04,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:57:04,452 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:57:04,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:57:04,577 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:57:04,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:57:04,697 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:57:04,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:57:04,831 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:57:04,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:57:04,918 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:57:04,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:57:04,996 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:57:05,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:57:05,064 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:57:05,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:57:05,125 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:57:05,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:57:05,178 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:57:05,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:57:05,222 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:57:05,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:57:05,262 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:57:05,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:57:05,298 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:57:05,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:57:05,331 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:57:05,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:57:05,392 INFO L134 CoverageAnalysis]: Checked inductivity of 2856 backedges. 0 proven. 876 refuted. 0 times theorem prover too weak. 1980 trivial. 0 not checked. [2024-09-12 19:57:05,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:57:05,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514581289] [2024-09-12 19:57:05,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514581289] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:57:05,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232868586] [2024-09-12 19:57:05,393 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:57:05,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:57:05,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:57:05,395 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) [2024-09-12 19:57:05,396 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-12 19:57:06,050 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:57:06,050 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:57:06,052 INFO L262 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-09-12 19:57:06,055 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:57:06,299 INFO L134 CoverageAnalysis]: Checked inductivity of 2856 backedges. 0 proven. 876 refuted. 0 times theorem prover too weak. 1980 trivial. 0 not checked. [2024-09-12 19:57:06,299 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:58:10,070 INFO L134 CoverageAnalysis]: Checked inductivity of 2856 backedges. 0 proven. 2556 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-09-12 19:58:10,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232868586] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:58:10,070 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:58:10,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 29, 53] total 56 [2024-09-12 19:58:10,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561922634] [2024-09-12 19:58:10,070 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:58:10,071 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2024-09-12 19:58:10,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:58:10,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2024-09-12 19:58:10,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=837, Invalid=2243, Unknown=0, NotChecked=0, Total=3080 [2024-09-12 19:58:10,073 INFO L87 Difference]: Start difference. First operand 517 states and 539 transitions. Second operand has 56 states, 55 states have (on average 4.0) internal successors, (220), 56 states have internal predecessors, (220), 28 states have call successors, (29), 1 states have call predecessors, (29), 26 states have return successors, (74), 26 states have call predecessors, (74), 28 states have call successors, (74) [2024-09-12 19:58:11,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:58:11,732 INFO L93 Difference]: Finished difference Result 3051 states and 3097 transitions. [2024-09-12 19:58:11,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-09-12 19:58:11,733 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 55 states have (on average 4.0) internal successors, (220), 56 states have internal predecessors, (220), 28 states have call successors, (29), 1 states have call predecessors, (29), 26 states have return successors, (74), 26 states have call predecessors, (74), 28 states have call successors, (74) Word has length 257 [2024-09-12 19:58:11,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:58:11,745 INFO L225 Difference]: With dead ends: 3051 [2024-09-12 19:58:11,745 INFO L226 Difference]: Without dead ends: 2969 [2024-09-12 19:58:11,747 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 618 GetRequests, 514 SyntacticMatches, 26 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2826 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=2133, Invalid=4187, Unknown=0, NotChecked=0, Total=6320 [2024-09-12 19:58:11,748 INFO L434 NwaCegarLoop]: 15 mSDtfsCounter, 167 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:58:11,748 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 258 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:58:11,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2969 states. [2024-09-12 19:58:11,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2969 to 515. [2024-09-12 19:58:11,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 417 states have (on average 1.052757793764988) internal successors, (439), 418 states have internal predecessors, (439), 49 states have call successors, (49), 48 states have call predecessors, (49), 47 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-09-12 19:58:11,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 536 transitions. [2024-09-12 19:58:11,920 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 536 transitions. Word has length 257 [2024-09-12 19:58:11,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:58:11,920 INFO L474 AbstractCegarLoop]: Abstraction has 515 states and 536 transitions. [2024-09-12 19:58:11,921 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 55 states have (on average 4.0) internal successors, (220), 56 states have internal predecessors, (220), 28 states have call successors, (29), 1 states have call predecessors, (29), 26 states have return successors, (74), 26 states have call predecessors, (74), 28 states have call successors, (74) [2024-09-12 19:58:11,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:58:11,921 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 536 transitions. [2024-09-12 19:58:11,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2024-09-12 19:58:11,924 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:58:11,924 INFO L216 NwaCegarLoop]: trace histogram [26, 26, 25, 25, 25, 25, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:58:11,946 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-09-12 19:58:12,124 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-12 19:58:12,125 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr2ASSERT_VIOLATIONERROR_FUNCTION === [sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 19:58:12,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:58:12,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1836230900, now seen corresponding path program 3 times [2024-09-12 19:58:12,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:58:12,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022242540] [2024-09-12 19:58:12,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:58:12,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:58:12,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:58:13,398 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:58:13,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:58:13,401 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:58:13,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:58:14,812 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:58:14,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:58:16,044 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:58:16,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:58:16,872 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:58:16,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:58:17,664 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:58:17,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:58:18,496 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:58:18,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:58:19,170 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:58:19,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:58:19,806 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:58:19,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:58:20,201 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:58:20,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:58:20,717 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:58:20,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:58:21,190 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:58:21,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:58:21,580 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:58:21,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:58:21,915 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:58:21,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:58:22,150 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:58:22,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:58:22,378 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:58:22,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:58:22,572 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:58:22,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:58:22,720 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:58:22,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:58:22,873 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:58:22,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:58:23,020 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:58:23,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:58:23,138 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:58:23,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:58:23,243 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:58:23,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:58:23,317 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:58:23,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:58:23,371 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:58:23,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:58:23,426 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:58:23,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:58:23,464 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:58:23,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:58:23,486 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:58:23,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:58:23,503 INFO L134 CoverageAnalysis]: Checked inductivity of 3100 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 3050 trivial. 0 not checked. [2024-09-12 19:58:23,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:58:23,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022242540] [2024-09-12 19:58:23,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022242540] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:58:23,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [712691609] [2024-09-12 19:58:23,504 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:58:23,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:58:23,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:58:23,505 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) [2024-09-12 19:58:23,506 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-12 19:58:24,741 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 26 check-sat command(s) [2024-09-12 19:58:24,742 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:58:24,745 INFO L262 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 217 conjuncts are in the unsatisfiable core [2024-09-12 19:58:24,780 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:58:26,488 INFO L134 CoverageAnalysis]: Checked inductivity of 3100 backedges. 145 proven. 950 refuted. 0 times theorem prover too weak. 2005 trivial. 0 not checked. [2024-09-12 19:58:26,488 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:58:38,123 INFO L134 CoverageAnalysis]: Checked inductivity of 3100 backedges. 0 proven. 1095 refuted. 0 times theorem prover too weak. 2005 trivial. 0 not checked. [2024-09-12 19:58:38,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [712691609] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:58:38,123 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:58:38,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 60, 60] total 73 [2024-09-12 19:58:38,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439664954] [2024-09-12 19:58:38,123 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:58:38,124 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2024-09-12 19:58:38,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:58:38,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2024-09-12 19:58:38,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=5091, Unknown=0, NotChecked=0, Total=5256 [2024-09-12 19:58:38,126 INFO L87 Difference]: Start difference. First operand 515 states and 536 transitions. Second operand has 73 states, 71 states have (on average 1.4788732394366197) internal successors, (105), 44 states have internal predecessors, (105), 7 states have call successors, (8), 1 states have call predecessors, (8), 30 states have return successors, (31), 30 states have call predecessors, (31), 7 states have call successors, (31) [2024-09-12 19:58:43,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:58:43,343 INFO L93 Difference]: Finished difference Result 3107 states and 3154 transitions. [2024-09-12 19:58:43,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-09-12 19:58:43,343 INFO L78 Accepts]: Start accepts. Automaton has has 73 states, 71 states have (on average 1.4788732394366197) internal successors, (105), 44 states have internal predecessors, (105), 7 states have call successors, (8), 1 states have call predecessors, (8), 30 states have return successors, (31), 30 states have call predecessors, (31), 7 states have call successors, (31) Word has length 267 [2024-09-12 19:58:43,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:58:43,348 INFO L225 Difference]: With dead ends: 3107 [2024-09-12 19:58:43,348 INFO L226 Difference]: Without dead ends: 329 [2024-09-12 19:58:43,354 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 702 GetRequests, 572 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2201 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=883, Invalid=16409, Unknown=0, NotChecked=0, Total=17292 [2024-09-12 19:58:43,354 INFO L434 NwaCegarLoop]: 33 mSDtfsCounter, 211 mSDsluCounter, 1776 mSDsCounter, 0 mSdLazyCounter, 4096 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 1809 SdHoareTripleChecker+Invalid, 4210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 4096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-09-12 19:58:43,354 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 1809 Invalid, 4210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 4096 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-09-12 19:58:43,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-09-12 19:58:43,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 328. [2024-09-12 19:58:43,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 278 states have (on average 1.0035971223021583) internal successors, (279), 278 states have internal predecessors, (279), 48 states have call successors, (48), 48 states have call predecessors, (48), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:58:43,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 328 transitions. [2024-09-12 19:58:43,402 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 328 transitions. Word has length 267 [2024-09-12 19:58:43,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:58:43,403 INFO L474 AbstractCegarLoop]: Abstraction has 328 states and 328 transitions. [2024-09-12 19:58:43,403 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 71 states have (on average 1.4788732394366197) internal successors, (105), 44 states have internal predecessors, (105), 7 states have call successors, (8), 1 states have call predecessors, (8), 30 states have return successors, (31), 30 states have call predecessors, (31), 7 states have call successors, (31) [2024-09-12 19:58:43,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:58:43,403 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 328 transitions. [2024-09-12 19:58:43,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2024-09-12 19:58:43,407 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:58:43,407 INFO L216 NwaCegarLoop]: trace histogram [46, 46, 46, 46, 46, 45, 45, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:58:43,433 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-09-12 19:58:43,607 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-09-12 19:58:43,608 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 19:58:43,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:58:43,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1041367276, now seen corresponding path program 4 times [2024-09-12 19:58:43,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:58:43,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328024445] [2024-09-12 19:58:43,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:58:43,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:58:43,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:58:44,921 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:58:44,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:58:44,925 INFO L134 CoverageAnalysis]: Checked inductivity of 7200 backedges. 5790 proven. 0 refuted. 0 times theorem prover too weak. 1410 trivial. 0 not checked. [2024-09-12 19:58:44,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:58:44,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328024445] [2024-09-12 19:58:44,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328024445] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:58:44,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:58:44,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [55] imperfect sequences [] total 55 [2024-09-12 19:58:44,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554472753] [2024-09-12 19:58:44,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:58:44,926 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2024-09-12 19:58:44,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:58:44,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2024-09-12 19:58:44,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=757, Invalid=2213, Unknown=0, NotChecked=0, Total=2970 [2024-09-12 19:58:44,927 INFO L87 Difference]: Start difference. First operand 328 states and 328 transitions. Second operand has 55 states, 54 states have (on average 2.9814814814814814) internal successors, (161), 29 states have internal predecessors, (161), 28 states have call successors, (29), 28 states have call predecessors, (29), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:58:45,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:58:45,466 INFO L93 Difference]: Finished difference Result 328 states and 328 transitions. [2024-09-12 19:58:45,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-09-12 19:58:45,466 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 54 states have (on average 2.9814814814814814) internal successors, (161), 29 states have internal predecessors, (161), 28 states have call successors, (29), 28 states have call predecessors, (29), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 327 [2024-09-12 19:58:45,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:58:45,468 INFO L225 Difference]: With dead ends: 328 [2024-09-12 19:58:45,468 INFO L226 Difference]: Without dead ends: 0 [2024-09-12 19:58:45,469 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1225 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1836, Invalid=4644, Unknown=0, NotChecked=0, Total=6480 [2024-09-12 19:58:45,470 INFO L434 NwaCegarLoop]: 80 mSDtfsCounter, 151 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 893 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:58:45,470 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 430 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 893 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:58:45,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-12 19:58:45,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-12 19:58:45,470 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) [2024-09-12 19:58:45,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-12 19:58:45,471 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 327 [2024-09-12 19:58:45,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:58:45,472 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-12 19:58:45,472 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 54 states have (on average 2.9814814814814814) internal successors, (161), 29 states have internal predecessors, (161), 28 states have call successors, (29), 28 states have call predecessors, (29), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:58:45,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:58:45,472 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-12 19:58:45,472 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-12 19:58:45,474 INFO L785 garLoopResultBuilder]: Registering result SAFE for location sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 9 remaining) [2024-09-12 19:58:45,474 INFO L785 garLoopResultBuilder]: Registering result SAFE for location sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2024-09-12 19:58:45,474 INFO L785 garLoopResultBuilder]: Registering result SAFE for location sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2024-09-12 19:58:45,474 INFO L785 garLoopResultBuilder]: Registering result SAFE for location sumErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2024-09-12 19:58:45,474 INFO L785 garLoopResultBuilder]: Registering result SAFE for location sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 9 remaining) [2024-09-12 19:58:45,475 INFO L785 garLoopResultBuilder]: Registering result SAFE for location sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2024-09-12 19:58:45,475 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2024-09-12 19:58:45,475 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2024-09-12 19:58:45,475 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 9 remaining) [2024-09-12 19:58:45,475 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-09-12 19:58:45,478 INFO L408 BasicCegarLoop]: Path program histogram: [4, 3, 3, 2, 1, 1, 1, 1, 1, 1] [2024-09-12 19:58:45,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.