./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-lit/jm2006_variant.i --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/loop-lit/jm2006_variant.i -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 4cc4e6594048669dc8576432b007a54cfaf2cb918409d0a11b256ce036aec976 --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 18:06:40,841 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 18:06:40,927 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 18:06:40,934 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 18:06:40,935 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 18:06:40,969 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 18:06:40,969 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 18:06:40,970 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 18:06:40,971 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 18:06:40,974 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 18:06:40,975 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 18:06:40,975 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 18:06:40,975 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 18:06:40,976 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 18:06:40,976 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 18:06:40,976 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 18:06:40,977 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 18:06:40,977 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 18:06:40,977 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 18:06:40,977 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 18:06:40,978 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 18:06:40,981 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 18:06:40,982 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 18:06:40,982 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 18:06:40,982 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 18:06:40,983 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 18:06:40,983 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 18:06:40,984 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 18:06:40,984 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 18:06:40,984 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 18:06:40,985 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 18:06:40,985 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 18:06:40,986 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:06:40,986 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 18:06:40,987 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 18:06:40,987 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 18:06:40,987 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 18:06:40,988 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 18:06:40,988 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 18:06:40,988 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 18:06:40,989 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 18:06:40,989 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 18:06:40,989 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4cc4e6594048669dc8576432b007a54cfaf2cb918409d0a11b256ce036aec976 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 18:06:41,333 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 18:06:41,359 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 18:06:41,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 18:06:41,362 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 18:06:41,363 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 18:06:41,364 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loop-lit/jm2006_variant.i [2024-09-12 18:06:42,956 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 18:06:43,139 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 18:06:43,139 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/jm2006_variant.i [2024-09-12 18:06:43,147 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/480714da3/3eefcd5cb0984177811616ec5fa70358/FLAGc5935ba73 [2024-09-12 18:06:43,163 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/480714da3/3eefcd5cb0984177811616ec5fa70358 [2024-09-12 18:06:43,166 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 18:06:43,167 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 18:06:43,168 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 18:06:43,169 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 18:06:43,175 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 18:06:43,176 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:06:43" (1/1) ... [2024-09-12 18:06:43,177 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3398b7c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:43, skipping insertion in model container [2024-09-12 18:06:43,177 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:06:43" (1/1) ... [2024-09-12 18:06:43,202 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 18:06:43,372 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/loop-lit/jm2006_variant.i[895,908] [2024-09-12 18:06:43,391 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:06:43,402 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 18:06:43,416 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/loop-lit/jm2006_variant.i[895,908] [2024-09-12 18:06:43,420 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:06:43,437 INFO L204 MainTranslator]: Completed translation [2024-09-12 18:06:43,438 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:43 WrapperNode [2024-09-12 18:06:43,438 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 18:06:43,439 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 18:06:43,439 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 18:06:43,440 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 18:06:43,446 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:43" (1/1) ... [2024-09-12 18:06:43,453 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:43" (1/1) ... [2024-09-12 18:06:43,458 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 18:06:43,459 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 18:06:43,460 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 18:06:43,460 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 18:06:43,460 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 18:06:43,469 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:43" (1/1) ... [2024-09-12 18:06:43,470 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:43" (1/1) ... [2024-09-12 18:06:43,471 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:43" (1/1) ... [2024-09-12 18:06:43,486 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 18:06:43,487 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:43" (1/1) ... [2024-09-12 18:06:43,487 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:43" (1/1) ... [2024-09-12 18:06:43,492 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:43" (1/1) ... [2024-09-12 18:06:43,498 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:43" (1/1) ... [2024-09-12 18:06:43,499 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:43" (1/1) ... [2024-09-12 18:06:43,501 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:43" (1/1) ... [2024-09-12 18:06:43,502 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 18:06:43,504 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 18:06:43,505 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 18:06:43,505 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 18:06:43,506 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:43" (1/1) ... [2024-09-12 18:06:43,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:06:43,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:06:43,538 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 18:06:43,541 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 18:06:43,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 18:06:43,582 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 18:06:43,583 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 18:06:43,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 18:06:43,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 18:06:43,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 18:06:43,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 18:06:43,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 18:06:43,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 18:06:43,584 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 18:06:43,642 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 18:06:43,644 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 18:06:43,835 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-09-12 18:06:43,835 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 18:06:43,857 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 18:06:43,858 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-12 18:06:43,858 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:06:43 BoogieIcfgContainer [2024-09-12 18:06:43,858 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 18:06:43,862 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 18:06:43,862 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 18:06:43,865 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 18:06:43,865 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 06:06:43" (1/3) ... [2024-09-12 18:06:43,866 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5499d0a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:06:43, skipping insertion in model container [2024-09-12 18:06:43,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:43" (2/3) ... [2024-09-12 18:06:43,866 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5499d0a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:06:43, skipping insertion in model container [2024-09-12 18:06:43,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:06:43" (3/3) ... [2024-09-12 18:06:43,868 INFO L112 eAbstractionObserver]: Analyzing ICFG jm2006_variant.i [2024-09-12 18:06:43,884 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 18:06:43,884 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2024-09-12 18:06:43,955 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 18:06:43,963 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;@592fc8c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 18:06:43,964 INFO L337 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-09-12 18:06:43,968 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 21 states have (on average 1.7142857142857142) internal successors, (36), 31 states have internal predecessors, (36), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:06:43,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-09-12 18:06:43,975 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:43,976 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:43,976 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:06:43,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:43,982 INFO L85 PathProgramCache]: Analyzing trace with hash -422200382, now seen corresponding path program 1 times [2024-09-12 18:06:43,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:43,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878537670] [2024-09-12 18:06:43,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:43,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:44,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:44,233 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:44,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:44,247 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 18:06:44,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:44,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878537670] [2024-09-12 18:06:44,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878537670] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:06:44,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:06:44,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:06:44,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038505099] [2024-09-12 18:06:44,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:06:44,255 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:06:44,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:44,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:06:44,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:06:44,275 INFO L87 Difference]: Start difference. First operand has 37 states, 21 states have (on average 1.7142857142857142) internal successors, (36), 31 states have internal predecessors, (36), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:44,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:44,380 INFO L93 Difference]: Finished difference Result 60 states and 70 transitions. [2024-09-12 18:06:44,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:06:44,384 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 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 18:06:44,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:44,391 INFO L225 Difference]: With dead ends: 60 [2024-09-12 18:06:44,392 INFO L226 Difference]: Without dead ends: 33 [2024-09-12 18:06:44,395 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:06:44,398 INFO L434 NwaCegarLoop]: 33 mSDtfsCounter, 23 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:44,400 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 117 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:06:44,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2024-09-12 18:06:44,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2024-09-12 18:06:44,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 27 states have internal predecessors, (29), 3 states have call successors, (3), 3 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 18:06:44,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2024-09-12 18:06:44,431 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 9 [2024-09-12 18:06:44,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:44,432 INFO L474 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2024-09-12 18:06:44,432 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:44,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:44,433 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2024-09-12 18:06:44,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-09-12 18:06:44,433 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:44,433 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:44,434 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 18:06:44,434 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:06:44,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:44,434 INFO L85 PathProgramCache]: Analyzing trace with hash -203311308, now seen corresponding path program 1 times [2024-09-12 18:06:44,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:44,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383110625] [2024-09-12 18:06:44,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:44,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:44,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:44,485 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:44,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:44,492 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 18:06:44,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:44,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383110625] [2024-09-12 18:06:44,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383110625] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:06:44,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:06:44,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:06:44,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508234568] [2024-09-12 18:06:44,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:06:44,495 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:06:44,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:44,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:06:44,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:06:44,496 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:44,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:44,523 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2024-09-12 18:06:44,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:06:44,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 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 18:06:44,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:44,526 INFO L225 Difference]: With dead ends: 44 [2024-09-12 18:06:44,527 INFO L226 Difference]: Without dead ends: 42 [2024-09-12 18:06:44,527 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 18:06:44,528 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 9 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:44,529 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 48 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:06:44,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-09-12 18:06:44,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 35. [2024-09-12 18:06:44,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 30 states have internal predecessors, (32), 3 states have call successors, (3), 3 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 18:06:44,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2024-09-12 18:06:44,539 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 10 [2024-09-12 18:06:44,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:44,539 INFO L474 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2024-09-12 18:06:44,540 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:44,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:44,540 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2024-09-12 18:06:44,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-09-12 18:06:44,541 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:44,541 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:44,541 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 18:06:44,542 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:06:44,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:44,542 INFO L85 PathProgramCache]: Analyzing trace with hash -203309898, now seen corresponding path program 1 times [2024-09-12 18:06:44,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:44,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182847461] [2024-09-12 18:06:44,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:44,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:44,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:44,622 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:44,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:44,633 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 18:06:44,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:44,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182847461] [2024-09-12 18:06:44,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182847461] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:06:44,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:06:44,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:06:44,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336705259] [2024-09-12 18:06:44,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:06:44,636 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:06:44,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:44,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:06:44,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:06:44,641 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:44,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:44,700 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2024-09-12 18:06:44,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:06:44,701 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 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 18:06:44,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:44,703 INFO L225 Difference]: With dead ends: 35 [2024-09-12 18:06:44,704 INFO L226 Difference]: Without dead ends: 34 [2024-09-12 18:06:44,704 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:06:44,705 INFO L434 NwaCegarLoop]: 21 mSDtfsCounter, 22 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:44,706 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 66 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:06:44,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-09-12 18:06:44,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-09-12 18:06:44,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 29 states have internal predecessors, (31), 3 states have call successors, (3), 3 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 18:06:44,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2024-09-12 18:06:44,728 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 10 [2024-09-12 18:06:44,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:44,729 INFO L474 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2024-09-12 18:06:44,729 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:44,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:44,730 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2024-09-12 18:06:44,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-09-12 18:06:44,730 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:44,730 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:44,731 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-12 18:06:44,731 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:06:44,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:44,733 INFO L85 PathProgramCache]: Analyzing trace with hash -2007639484, now seen corresponding path program 1 times [2024-09-12 18:06:44,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:44,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791455980] [2024-09-12 18:06:44,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:44,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:44,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:44,781 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:44,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:44,786 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 18:06:44,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:44,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791455980] [2024-09-12 18:06:44,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791455980] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:06:44,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:06:44,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:06:44,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870304233] [2024-09-12 18:06:44,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:06:44,788 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:06:44,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:44,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:06:44,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:06:44,790 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:44,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:44,808 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2024-09-12 18:06:44,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:06:44,809 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 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 18:06:44,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:44,810 INFO L225 Difference]: With dead ends: 39 [2024-09-12 18:06:44,810 INFO L226 Difference]: Without dead ends: 38 [2024-09-12 18:06:44,811 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 18:06:44,812 INFO L434 NwaCegarLoop]: 25 mSDtfsCounter, 5 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:44,812 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 48 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:06:44,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-09-12 18:06:44,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2024-09-12 18:06:44,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 24 states have (on average 1.375) internal successors, (33), 31 states have internal predecessors, (33), 3 states have call successors, (3), 3 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 18:06:44,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2024-09-12 18:06:44,822 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 11 [2024-09-12 18:06:44,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:44,823 INFO L474 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2024-09-12 18:06:44,824 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:44,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:44,824 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2024-09-12 18:06:44,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-09-12 18:06:44,825 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:44,825 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:44,825 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-12 18:06:44,826 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:06:44,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:44,826 INFO L85 PathProgramCache]: Analyzing trace with hash -2107281800, now seen corresponding path program 1 times [2024-09-12 18:06:44,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:44,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506876017] [2024-09-12 18:06:44,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:44,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:44,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:44,867 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:44,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:44,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:44,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:44,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506876017] [2024-09-12 18:06:44,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506876017] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:06:44,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:06:44,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:06:44,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880206791] [2024-09-12 18:06:44,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:06:44,874 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:06:44,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:44,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:06:44,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:06:44,875 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:44,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:44,901 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2024-09-12 18:06:44,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:06:44,902 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2024-09-12 18:06:44,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:44,903 INFO L225 Difference]: With dead ends: 36 [2024-09-12 18:06:44,903 INFO L226 Difference]: Without dead ends: 35 [2024-09-12 18:06:44,903 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:06:44,904 INFO L434 NwaCegarLoop]: 22 mSDtfsCounter, 24 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:44,905 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 42 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:06:44,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-09-12 18:06:44,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-09-12 18:06:44,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 30 states have internal predecessors, (32), 3 states have call successors, (3), 3 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 18:06:44,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2024-09-12 18:06:44,914 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 12 [2024-09-12 18:06:44,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:44,914 INFO L474 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2024-09-12 18:06:44,914 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:44,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:44,915 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2024-09-12 18:06:44,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-09-12 18:06:44,916 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:44,916 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:44,916 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-09-12 18:06:44,916 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:06:44,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:44,917 INFO L85 PathProgramCache]: Analyzing trace with hash -901226298, now seen corresponding path program 1 times [2024-09-12 18:06:44,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:44,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656319898] [2024-09-12 18:06:44,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:44,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:44,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:44,989 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:44,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:44,996 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 18:06:44,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:44,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656319898] [2024-09-12 18:06:44,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656319898] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:06:44,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:06:44,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:06:44,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806047832] [2024-09-12 18:06:44,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:06:44,997 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:06:44,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:44,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:06:44,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:06:45,002 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:45,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:45,048 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2024-09-12 18:06:45,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:06:45,049 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2024-09-12 18:06:45,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:45,050 INFO L225 Difference]: With dead ends: 41 [2024-09-12 18:06:45,050 INFO L226 Difference]: Without dead ends: 39 [2024-09-12 18:06:45,050 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:06:45,053 INFO L434 NwaCegarLoop]: 22 mSDtfsCounter, 5 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:45,054 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 61 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:06:45,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-09-12 18:06:45,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2024-09-12 18:06:45,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 33 states have internal predecessors, (35), 3 states have call successors, (3), 3 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 18:06:45,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2024-09-12 18:06:45,067 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 13 [2024-09-12 18:06:45,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:45,069 INFO L474 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2024-09-12 18:06:45,069 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:45,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:45,069 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2024-09-12 18:06:45,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-09-12 18:06:45,070 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:45,070 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:45,070 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-09-12 18:06:45,070 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:06:45,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:45,071 INFO L85 PathProgramCache]: Analyzing trace with hash -191606070, now seen corresponding path program 1 times [2024-09-12 18:06:45,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:45,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562275684] [2024-09-12 18:06:45,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:45,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:45,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:45,316 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:45,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:45,321 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 18:06:45,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:45,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562275684] [2024-09-12 18:06:45,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562275684] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:06:45,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:06:45,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-09-12 18:06:45,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498536452] [2024-09-12 18:06:45,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:06:45,322 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:06:45,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:45,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:06:45,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:06:45,324 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 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 18:06:45,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:45,398 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2024-09-12 18:06:45,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:06:45,399 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 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 15 [2024-09-12 18:06:45,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:45,400 INFO L225 Difference]: With dead ends: 43 [2024-09-12 18:06:45,400 INFO L226 Difference]: Without dead ends: 35 [2024-09-12 18:06:45,400 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:06:45,401 INFO L434 NwaCegarLoop]: 21 mSDtfsCounter, 1 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:45,402 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 85 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:06:45,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-09-12 18:06:45,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-09-12 18:06:45,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 30 states have internal predecessors, (31), 3 states have call successors, (3), 3 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 18:06:45,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2024-09-12 18:06:45,418 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 15 [2024-09-12 18:06:45,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:45,419 INFO L474 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2024-09-12 18:06:45,419 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 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 18:06:45,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:45,419 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2024-09-12 18:06:45,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-09-12 18:06:45,423 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:45,423 INFO L216 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:45,424 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-12 18:06:45,424 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:06:45,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:45,424 INFO L85 PathProgramCache]: Analyzing trace with hash -592013252, now seen corresponding path program 1 times [2024-09-12 18:06:45,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:45,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375537854] [2024-09-12 18:06:45,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:45,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:45,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:45,495 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:45,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:45,500 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 18:06:45,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:45,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375537854] [2024-09-12 18:06:45,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375537854] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:06:45,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108005611] [2024-09-12 18:06:45,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:45,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:45,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:06:45,505 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 18:06:45,506 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 18:06:45,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:45,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:06:45,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:06:45,604 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 18:06:45,605 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:06:45,695 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 18:06:45,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1108005611] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:06:45,697 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:06:45,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-09-12 18:06:45,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008447313] [2024-09-12 18:06:45,697 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:06:45,698 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:06:45,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:45,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:06:45,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:06:45,699 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 12 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:45,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:45,854 INFO L93 Difference]: Finished difference Result 58 states and 63 transitions. [2024-09-12 18:06:45,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:06:45,855 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 12 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 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 18:06:45,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:45,856 INFO L225 Difference]: With dead ends: 58 [2024-09-12 18:06:45,857 INFO L226 Difference]: Without dead ends: 57 [2024-09-12 18:06:45,857 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2024-09-12 18:06:45,858 INFO L434 NwaCegarLoop]: 21 mSDtfsCounter, 60 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:45,859 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 165 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:06:45,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-09-12 18:06:45,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 51. [2024-09-12 18:06:45,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 40 states have (on average 1.4) internal successors, (56), 46 states have internal predecessors, (56), 3 states have call successors, (3), 3 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 18:06:45,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 60 transitions. [2024-09-12 18:06:45,887 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 60 transitions. Word has length 16 [2024-09-12 18:06:45,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:45,887 INFO L474 AbstractCegarLoop]: Abstraction has 51 states and 60 transitions. [2024-09-12 18:06:45,887 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 12 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:45,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:45,888 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 60 transitions. [2024-09-12 18:06:45,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-09-12 18:06:45,889 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:45,889 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:45,908 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 18:06:46,094 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:46,095 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:06:46,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:46,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1172542982, now seen corresponding path program 1 times [2024-09-12 18:06:46,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:46,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906695976] [2024-09-12 18:06:46,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:46,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:46,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:46,154 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:46,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:46,158 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:46,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:46,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906695976] [2024-09-12 18:06:46,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906695976] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:06:46,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594917348] [2024-09-12 18:06:46,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:46,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:46,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:06:46,166 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 18:06:46,167 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 18:06:46,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:46,203 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:06:46,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:06:46,223 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:46,224 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:06:46,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594917348] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:06:46,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:06:46,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-09-12 18:06:46,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693537058] [2024-09-12 18:06:46,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:06:46,227 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:06:46,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:46,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:06:46,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:06:46,227 INFO L87 Difference]: Start difference. First operand 51 states and 60 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:46,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:46,257 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2024-09-12 18:06:46,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:06:46,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-09-12 18:06:46,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:46,258 INFO L225 Difference]: With dead ends: 51 [2024-09-12 18:06:46,262 INFO L226 Difference]: Without dead ends: 50 [2024-09-12 18:06:46,262 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:06:46,263 INFO L434 NwaCegarLoop]: 22 mSDtfsCounter, 8 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:46,264 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 34 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:06:46,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-09-12 18:06:46,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2024-09-12 18:06:46,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 40 states have (on average 1.375) internal successors, (55), 45 states have internal predecessors, (55), 3 states have call successors, (3), 3 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 18:06:46,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 59 transitions. [2024-09-12 18:06:46,301 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 59 transitions. Word has length 17 [2024-09-12 18:06:46,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:46,302 INFO L474 AbstractCegarLoop]: Abstraction has 50 states and 59 transitions. [2024-09-12 18:06:46,302 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:46,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:46,302 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 59 transitions. [2024-09-12 18:06:46,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-09-12 18:06:46,303 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:46,303 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:46,320 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-09-12 18:06:46,503 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:46,504 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:06:46,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:46,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1989094000, now seen corresponding path program 1 times [2024-09-12 18:06:46,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:46,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881333980] [2024-09-12 18:06:46,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:46,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:46,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:46,548 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:46,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:46,551 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:46,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:46,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881333980] [2024-09-12 18:06:46,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881333980] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:06:46,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914070000] [2024-09-12 18:06:46,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:46,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:46,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:06:46,554 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 18:06:46,555 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 18:06:46,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:46,595 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:06:46,596 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:06:46,627 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:46,628 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:06:46,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914070000] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:06:46,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:06:46,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-09-12 18:06:46,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359629155] [2024-09-12 18:06:46,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:06:46,629 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:06:46,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:46,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:06:46,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:06:46,630 INFO L87 Difference]: Start difference. First operand 50 states and 59 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:46,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:46,667 INFO L93 Difference]: Finished difference Result 50 states and 59 transitions. [2024-09-12 18:06:46,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:06:46,668 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 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 18:06:46,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:46,669 INFO L225 Difference]: With dead ends: 50 [2024-09-12 18:06:46,670 INFO L226 Difference]: Without dead ends: 48 [2024-09-12 18:06:46,671 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:06:46,671 INFO L434 NwaCegarLoop]: 22 mSDtfsCounter, 10 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:46,672 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 57 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:06:46,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-09-12 18:06:46,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2024-09-12 18:06:46,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 40 states have (on average 1.275) internal successors, (51), 43 states have internal predecessors, (51), 3 states have call successors, (3), 3 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 18:06:46,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 55 transitions. [2024-09-12 18:06:46,686 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 55 transitions. Word has length 18 [2024-09-12 18:06:46,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:46,686 INFO L474 AbstractCegarLoop]: Abstraction has 48 states and 55 transitions. [2024-09-12 18:06:46,686 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:46,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:46,687 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 55 transitions. [2024-09-12 18:06:46,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-09-12 18:06:46,688 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:46,689 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:46,706 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-12 18:06:46,889 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-09-12 18:06:46,890 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:06:46,890 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:46,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1989050306, now seen corresponding path program 1 times [2024-09-12 18:06:46,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:46,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793266070] [2024-09-12 18:06:46,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:46,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:46,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:46,933 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:46,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:46,938 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:46,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:46,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793266070] [2024-09-12 18:06:46,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793266070] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:06:46,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1540862373] [2024-09-12 18:06:46,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:46,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:46,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:06:46,942 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 18:06:46,943 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 18:06:46,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:46,984 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:06:46,985 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:06:47,015 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:47,016 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:06:47,052 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:47,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1540862373] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:06:47,053 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:06:47,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-09-12 18:06:47,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638808421] [2024-09-12 18:06:47,053 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:06:47,054 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:06:47,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:47,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:06:47,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:06:47,055 INFO L87 Difference]: Start difference. First operand 48 states and 55 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:47,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:47,090 INFO L93 Difference]: Finished difference Result 65 states and 70 transitions. [2024-09-12 18:06:47,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:06:47,092 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 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 18:06:47,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:47,092 INFO L225 Difference]: With dead ends: 65 [2024-09-12 18:06:47,093 INFO L226 Difference]: Without dead ends: 64 [2024-09-12 18:06:47,093 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:06:47,093 INFO L434 NwaCegarLoop]: 22 mSDtfsCounter, 18 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:47,094 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 91 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:06:47,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-09-12 18:06:47,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 50. [2024-09-12 18:06:47,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 42 states have (on average 1.2142857142857142) internal successors, (51), 45 states have internal predecessors, (51), 3 states have call successors, (3), 3 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 18:06:47,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2024-09-12 18:06:47,109 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 18 [2024-09-12 18:06:47,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:47,109 INFO L474 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2024-09-12 18:06:47,109 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:47,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:47,110 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2024-09-12 18:06:47,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-09-12 18:06:47,111 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:47,111 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:47,129 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 18:06:47,312 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:47,312 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:06:47,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:47,312 INFO L85 PathProgramCache]: Analyzing trace with hash 320367556, now seen corresponding path program 1 times [2024-09-12 18:06:47,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:47,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863753872] [2024-09-12 18:06:47,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:47,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:47,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:47,576 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:47,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:47,580 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:47,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:47,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863753872] [2024-09-12 18:06:47,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863753872] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:06:47,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284834878] [2024-09-12 18:06:47,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:47,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:47,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:06:47,583 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 18:06:47,584 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 18:06:47,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:47,625 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-12 18:06:47,627 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:06:47,888 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:47,890 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:06:48,126 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:48,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284834878] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:06:48,127 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:06:48,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 26 [2024-09-12 18:06:48,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600724279] [2024-09-12 18:06:48,129 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:06:48,130 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-09-12 18:06:48,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:48,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-09-12 18:06:48,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=564, Unknown=0, NotChecked=0, Total=650 [2024-09-12 18:06:48,132 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand has 26 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 24 states have internal predecessors, (42), 3 states have call successors, (5), 3 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 18:06:48,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:48,324 INFO L93 Difference]: Finished difference Result 62 states and 66 transitions. [2024-09-12 18:06:48,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 18:06:48,325 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 24 states have internal predecessors, (42), 3 states have call successors, (5), 3 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 22 [2024-09-12 18:06:48,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:48,325 INFO L225 Difference]: With dead ends: 62 [2024-09-12 18:06:48,325 INFO L226 Difference]: Without dead ends: 50 [2024-09-12 18:06:48,326 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=92, Invalid=610, Unknown=0, NotChecked=0, Total=702 [2024-09-12 18:06:48,326 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 2 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:48,326 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 110 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:06:48,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-09-12 18:06:48,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2024-09-12 18:06:48,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 42 states have (on average 1.1666666666666667) internal successors, (49), 45 states have internal predecessors, (49), 3 states have call successors, (3), 3 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 18:06:48,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2024-09-12 18:06:48,338 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 22 [2024-09-12 18:06:48,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:48,338 INFO L474 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2024-09-12 18:06:48,339 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 24 states have internal predecessors, (42), 3 states have call successors, (5), 3 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 18:06:48,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:48,339 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2024-09-12 18:06:48,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-09-12 18:06:48,339 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:48,340 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:48,357 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 18:06:48,543 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-09-12 18:06:48,544 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:06:48,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:48,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1866176512, now seen corresponding path program 1 times [2024-09-12 18:06:48,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:48,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807782692] [2024-09-12 18:06:48,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:48,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:48,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:48,594 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:48,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:48,598 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:48,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:48,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807782692] [2024-09-12 18:06:48,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807782692] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:06:48,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886335291] [2024-09-12 18:06:48,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:48,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:48,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:06:48,600 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 18:06:48,602 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 18:06:48,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:48,643 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:06:48,645 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:06:48,685 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:48,685 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:06:48,734 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:48,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1886335291] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:06:48,734 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:06:48,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-09-12 18:06:48,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567452483] [2024-09-12 18:06:48,735 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:06:48,735 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:06:48,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:48,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:06:48,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:06:48,736 INFO L87 Difference]: Start difference. First operand 50 states and 53 transitions. Second operand has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:48,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:48,786 INFO L93 Difference]: Finished difference Result 58 states and 61 transitions. [2024-09-12 18:06:48,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:06:48,786 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2024-09-12 18:06:48,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:48,787 INFO L225 Difference]: With dead ends: 58 [2024-09-12 18:06:48,787 INFO L226 Difference]: Without dead ends: 57 [2024-09-12 18:06:48,787 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:06:48,788 INFO L434 NwaCegarLoop]: 19 mSDtfsCounter, 4 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:48,788 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 119 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:06:48,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-09-12 18:06:48,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 53. [2024-09-12 18:06:48,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 45 states have (on average 1.1111111111111112) internal successors, (50), 48 states have internal predecessors, (50), 3 states have call successors, (3), 3 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 18:06:48,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2024-09-12 18:06:48,811 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 21 [2024-09-12 18:06:48,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:48,811 INFO L474 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2024-09-12 18:06:48,811 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:48,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:48,812 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2024-09-12 18:06:48,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-09-12 18:06:48,813 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:48,813 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:48,832 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 18:06:49,013 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-09-12 18:06:49,014 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:06:49,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:49,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1611726588, now seen corresponding path program 2 times [2024-09-12 18:06:49,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:49,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712167839] [2024-09-12 18:06:49,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:49,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:49,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:49,390 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:49,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:49,393 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-09-12 18:06:49,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:49,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712167839] [2024-09-12 18:06:49,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712167839] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:06:49,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [687983123] [2024-09-12 18:06:49,394 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:06:49,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:49,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:06:49,396 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 18:06:49,398 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 18:06:49,445 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:06:49,445 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:06:49,446 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-09-12 18:06:49,448 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:06:49,985 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:49,986 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:06:50,577 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:50,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [687983123] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:06:50,577 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:06:50,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 19, 19] total 46 [2024-09-12 18:06:50,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197021710] [2024-09-12 18:06:50,578 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:06:50,578 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-09-12 18:06:50,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:50,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-09-12 18:06:50,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=1867, Unknown=0, NotChecked=0, Total=2070 [2024-09-12 18:06:50,580 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand has 46 states, 46 states have (on average 1.6956521739130435) internal successors, (78), 44 states have internal predecessors, (78), 3 states have call successors, (5), 3 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 18:06:50,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:50,944 INFO L93 Difference]: Finished difference Result 57 states and 58 transitions. [2024-09-12 18:06:50,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-09-12 18:06:50,944 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 1.6956521739130435) internal successors, (78), 44 states have internal predecessors, (78), 3 states have call successors, (5), 3 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 36 [2024-09-12 18:06:50,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:50,945 INFO L225 Difference]: With dead ends: 57 [2024-09-12 18:06:50,945 INFO L226 Difference]: Without dead ends: 45 [2024-09-12 18:06:50,946 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 761 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=209, Invalid=1953, Unknown=0, NotChecked=0, Total=2162 [2024-09-12 18:06:50,946 INFO L434 NwaCegarLoop]: 7 mSDtfsCounter, 1 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 711 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:50,947 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 101 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 711 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:06:50,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-09-12 18:06:50,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-09-12 18:06:50,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 39 states have (on average 1.0769230769230769) internal successors, (42), 41 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:50,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2024-09-12 18:06:50,956 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 36 [2024-09-12 18:06:50,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:50,956 INFO L474 AbstractCegarLoop]: Abstraction has 45 states and 45 transitions. [2024-09-12 18:06:50,956 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 1.6956521739130435) internal successors, (78), 44 states have internal predecessors, (78), 3 states have call successors, (5), 3 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 18:06:50,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:50,957 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2024-09-12 18:06:50,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-09-12 18:06:50,958 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:50,958 INFO L216 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:50,974 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 18:06:51,158 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:51,159 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:06:51,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:51,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1666076350, now seen corresponding path program 2 times [2024-09-12 18:06:51,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:51,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461112816] [2024-09-12 18:06:51,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:51,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:51,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:51,287 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:51,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:51,290 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 18:06:51,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:51,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461112816] [2024-09-12 18:06:51,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461112816] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:06:51,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [329757352] [2024-09-12 18:06:51,292 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:06:51,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:51,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:06:51,294 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 18:06:51,295 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 18:06:51,337 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:06:51,337 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:06:51,338 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 18:06:51,339 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:06:51,401 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 18:06:51,402 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:06:51,568 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 18:06:51,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [329757352] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:06:51,568 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:06:51,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2024-09-12 18:06:51,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820712404] [2024-09-12 18:06:51,569 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:06:51,569 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-12 18:06:51,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:51,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-12 18:06:51,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2024-09-12 18:06:51,570 INFO L87 Difference]: Start difference. First operand 45 states and 45 transitions. Second operand has 24 states, 23 states have (on average 2.869565217391304) internal successors, (66), 24 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:51,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:51,854 INFO L93 Difference]: Finished difference Result 93 states and 98 transitions. [2024-09-12 18:06:51,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-09-12 18:06:51,855 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 2.869565217391304) internal successors, (66), 24 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 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 18:06:51,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:51,856 INFO L225 Difference]: With dead ends: 93 [2024-09-12 18:06:51,856 INFO L226 Difference]: Without dead ends: 92 [2024-09-12 18:06:51,857 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 405 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=416, Invalid=1476, Unknown=0, NotChecked=0, Total=1892 [2024-09-12 18:06:51,857 INFO L434 NwaCegarLoop]: 12 mSDtfsCounter, 196 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:51,858 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 142 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:06:51,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-09-12 18:06:51,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 82. [2024-09-12 18:06:51,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 76 states have (on average 1.1710526315789473) internal successors, (89), 78 states have internal predecessors, (89), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:51,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 92 transitions. [2024-09-12 18:06:51,882 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 92 transitions. Word has length 37 [2024-09-12 18:06:51,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:51,882 INFO L474 AbstractCegarLoop]: Abstraction has 82 states and 92 transitions. [2024-09-12 18:06:51,882 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 2.869565217391304) internal successors, (66), 24 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:51,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:51,883 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 92 transitions. [2024-09-12 18:06:51,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-09-12 18:06:51,885 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:51,885 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:51,913 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-09-12 18:06:52,102 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:52,103 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:06:52,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:52,104 INFO L85 PathProgramCache]: Analyzing trace with hash 923430852, now seen corresponding path program 2 times [2024-09-12 18:06:52,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:52,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157030775] [2024-09-12 18:06:52,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:52,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:52,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:52,167 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:52,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:52,169 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:52,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:52,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157030775] [2024-09-12 18:06:52,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157030775] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:06:52,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1364041678] [2024-09-12 18:06:52,170 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:06:52,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:52,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:06:52,172 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 18:06:52,173 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 18:06:52,212 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:06:52,212 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:06:52,213 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:06:52,214 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:06:52,263 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:52,263 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:06:52,349 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:52,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1364041678] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:06:52,349 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:06:52,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-09-12 18:06:52,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603563583] [2024-09-12 18:06:52,349 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:06:52,350 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:06:52,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:52,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:06:52,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:06:52,351 INFO L87 Difference]: Start difference. First operand 82 states and 92 transitions. Second operand has 12 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 12 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:52,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:52,397 INFO L93 Difference]: Finished difference Result 90 states and 95 transitions. [2024-09-12 18:06:52,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:06:52,398 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 12 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2024-09-12 18:06:52,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:52,398 INFO L225 Difference]: With dead ends: 90 [2024-09-12 18:06:52,399 INFO L226 Difference]: Without dead ends: 89 [2024-09-12 18:06:52,399 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:06:52,400 INFO L434 NwaCegarLoop]: 14 mSDtfsCounter, 15 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:52,400 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 76 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:06:52,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-09-12 18:06:52,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 84. [2024-09-12 18:06:52,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 78 states have (on average 1.1025641025641026) internal successors, (86), 80 states have internal predecessors, (86), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:52,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 89 transitions. [2024-09-12 18:06:52,419 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 89 transitions. Word has length 39 [2024-09-12 18:06:52,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:52,419 INFO L474 AbstractCegarLoop]: Abstraction has 84 states and 89 transitions. [2024-09-12 18:06:52,424 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 12 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:52,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:52,427 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 89 transitions. [2024-09-12 18:06:52,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-09-12 18:06:52,429 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:52,429 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:52,446 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 18:06:52,629 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-12 18:06:52,630 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:06:52,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:52,630 INFO L85 PathProgramCache]: Analyzing trace with hash 663040698, now seen corresponding path program 2 times [2024-09-12 18:06:52,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:52,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851123828] [2024-09-12 18:06:52,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:52,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:52,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:52,768 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:52,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:52,772 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:52,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:52,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851123828] [2024-09-12 18:06:52,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851123828] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:06:52,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071760894] [2024-09-12 18:06:52,773 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:06:52,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:52,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:06:52,775 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 18:06:52,777 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 18:06:52,819 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:06:52,819 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:06:52,820 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 18:06:52,821 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:06:52,880 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:52,880 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:06:53,031 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:53,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071760894] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:06:53,031 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:06:53,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2024-09-12 18:06:53,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672551329] [2024-09-12 18:06:53,032 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:06:53,032 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-12 18:06:53,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:53,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-12 18:06:53,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2024-09-12 18:06:53,033 INFO L87 Difference]: Start difference. First operand 84 states and 89 transitions. Second operand has 24 states, 23 states have (on average 3.608695652173913) internal successors, (83), 24 states have internal predecessors, (83), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:53,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:53,094 INFO L93 Difference]: Finished difference Result 88 states and 93 transitions. [2024-09-12 18:06:53,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-12 18:06:53,094 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.608695652173913) internal successors, (83), 24 states have internal predecessors, (83), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2024-09-12 18:06:53,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:53,095 INFO L225 Difference]: With dead ends: 88 [2024-09-12 18:06:53,095 INFO L226 Difference]: Without dead ends: 87 [2024-09-12 18:06:53,095 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2024-09-12 18:06:53,096 INFO L434 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:53,096 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 157 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:06:53,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-09-12 18:06:53,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-09-12 18:06:53,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 81 states have (on average 1.037037037037037) internal successors, (84), 83 states have internal predecessors, (84), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:53,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 87 transitions. [2024-09-12 18:06:53,119 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 87 transitions. Word has length 42 [2024-09-12 18:06:53,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:53,119 INFO L474 AbstractCegarLoop]: Abstraction has 87 states and 87 transitions. [2024-09-12 18:06:53,119 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.608695652173913) internal successors, (83), 24 states have internal predecessors, (83), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:53,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:53,120 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 87 transitions. [2024-09-12 18:06:53,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-09-12 18:06:53,121 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:53,121 INFO L216 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:53,138 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 18:06:53,321 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-09-12 18:06:53,322 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:06:53,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:53,322 INFO L85 PathProgramCache]: Analyzing trace with hash -947451518, now seen corresponding path program 3 times [2024-09-12 18:06:53,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:53,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812585318] [2024-09-12 18:06:53,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:53,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:53,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:53,737 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:53,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:53,740 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 18:06:53,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:53,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812585318] [2024-09-12 18:06:53,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812585318] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:06:53,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785118707] [2024-09-12 18:06:53,741 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:06:53,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:53,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:06:53,743 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 18:06:53,745 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 18:06:53,804 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-09-12 18:06:53,804 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:06:53,806 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-12 18:06:53,808 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:06:53,892 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 18:06:53,892 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:06:54,403 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 18:06:54,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [785118707] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:06:54,404 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:06:54,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2024-09-12 18:06:54,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419348036] [2024-09-12 18:06:54,404 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:06:54,405 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-09-12 18:06:54,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:54,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-09-12 18:06:54,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=1700, Unknown=0, NotChecked=0, Total=2256 [2024-09-12 18:06:54,407 INFO L87 Difference]: Start difference. First operand 87 states and 87 transitions. Second operand has 48 states, 47 states have (on average 3.1914893617021276) internal successors, (150), 48 states have internal predecessors, (150), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:55,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:55,197 INFO L93 Difference]: Finished difference Result 189 states and 200 transitions. [2024-09-12 18:06:55,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-09-12 18:06:55,198 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 3.1914893617021276) internal successors, (150), 48 states have internal predecessors, (150), 1 states have call successors, (2), 1 states have call predecessors, (2), 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 18:06:55,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:55,199 INFO L225 Difference]: With dead ends: 189 [2024-09-12 18:06:55,199 INFO L226 Difference]: Without dead ends: 188 [2024-09-12 18:06:55,201 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2079 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1700, Invalid=6672, Unknown=0, NotChecked=0, Total=8372 [2024-09-12 18:06:55,202 INFO L434 NwaCegarLoop]: 12 mSDtfsCounter, 412 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:55,202 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 181 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:06:55,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-09-12 18:06:55,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 166. [2024-09-12 18:06:55,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 160 states have (on average 1.15625) internal successors, (185), 162 states have internal predecessors, (185), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:55,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 188 transitions. [2024-09-12 18:06:55,232 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 188 transitions. Word has length 79 [2024-09-12 18:06:55,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:55,232 INFO L474 AbstractCegarLoop]: Abstraction has 166 states and 188 transitions. [2024-09-12 18:06:55,233 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 3.1914893617021276) internal successors, (150), 48 states have internal predecessors, (150), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:55,233 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:55,233 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 188 transitions. [2024-09-12 18:06:55,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-09-12 18:06:55,234 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:55,234 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:55,251 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 18:06:55,437 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-09-12 18:06:55,438 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:06:55,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:55,438 INFO L85 PathProgramCache]: Analyzing trace with hash 32159748, now seen corresponding path program 3 times [2024-09-12 18:06:55,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:55,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255001400] [2024-09-12 18:06:55,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:55,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:55,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:55,660 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:55,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:55,663 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:55,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:55,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255001400] [2024-09-12 18:06:55,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255001400] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:06:55,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784165038] [2024-09-12 18:06:55,664 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:06:55,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:55,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:06:55,666 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 18:06:55,667 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 18:06:55,727 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-09-12 18:06:55,727 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:06:55,728 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 18:06:55,730 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:06:55,824 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:55,824 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:06:56,031 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:56,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1784165038] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:06:56,031 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:06:56,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2024-09-12 18:06:56,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361612914] [2024-09-12 18:06:56,032 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:06:56,032 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-12 18:06:56,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:56,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-12 18:06:56,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2024-09-12 18:06:56,034 INFO L87 Difference]: Start difference. First operand 166 states and 188 transitions. Second operand has 24 states, 23 states have (on average 6.6521739130434785) internal successors, (153), 24 states have internal predecessors, (153), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:56,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:56,114 INFO L93 Difference]: Finished difference Result 180 states and 191 transitions. [2024-09-12 18:06:56,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-09-12 18:06:56,114 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.6521739130434785) internal successors, (153), 24 states have internal predecessors, (153), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 81 [2024-09-12 18:06:56,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:56,115 INFO L225 Difference]: With dead ends: 180 [2024-09-12 18:06:56,115 INFO L226 Difference]: Without dead ends: 179 [2024-09-12 18:06:56,115 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2024-09-12 18:06:56,116 INFO L434 NwaCegarLoop]: 14 mSDtfsCounter, 29 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:56,116 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 155 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:06:56,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-09-12 18:06:56,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 168. [2024-09-12 18:06:56,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 162 states have (on average 1.0864197530864197) internal successors, (176), 164 states have internal predecessors, (176), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:56,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 179 transitions. [2024-09-12 18:06:56,150 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 179 transitions. Word has length 81 [2024-09-12 18:06:56,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:56,151 INFO L474 AbstractCegarLoop]: Abstraction has 168 states and 179 transitions. [2024-09-12 18:06:56,151 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.6521739130434785) internal successors, (153), 24 states have internal predecessors, (153), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:56,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:56,151 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 179 transitions. [2024-09-12 18:06:56,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-09-12 18:06:56,152 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:56,152 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 10, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:56,166 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 18:06:56,352 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:56,353 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:06:56,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:56,353 INFO L85 PathProgramCache]: Analyzing trace with hash 293405306, now seen corresponding path program 3 times [2024-09-12 18:06:56,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:56,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103978381] [2024-09-12 18:06:56,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:56,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:56,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:56,738 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:56,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:56,741 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 385 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:56,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:56,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103978381] [2024-09-12 18:06:56,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103978381] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:06:56,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921372789] [2024-09-12 18:06:56,742 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:06:56,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:56,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:06:56,744 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:06:56,746 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-12 18:06:56,806 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-09-12 18:06:56,806 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:06:56,807 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-12 18:06:56,809 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:06:56,901 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 385 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:56,901 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:06:57,361 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 385 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:57,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1921372789] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:06:57,361 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:06:57,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 47 [2024-09-12 18:06:57,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771605296] [2024-09-12 18:06:57,362 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:06:57,362 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-09-12 18:06:57,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:57,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-09-12 18:06:57,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=599, Invalid=1657, Unknown=0, NotChecked=0, Total=2256 [2024-09-12 18:06:57,364 INFO L87 Difference]: Start difference. First operand 168 states and 179 transitions. Second operand has 48 states, 47 states have (on average 3.5531914893617023) internal successors, (167), 48 states have internal predecessors, (167), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:57,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:57,488 INFO L93 Difference]: Finished difference Result 172 states and 183 transitions. [2024-09-12 18:06:57,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-09-12 18:06:57,489 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 3.5531914893617023) internal successors, (167), 48 states have internal predecessors, (167), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2024-09-12 18:06:57,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:57,490 INFO L225 Difference]: With dead ends: 172 [2024-09-12 18:06:57,490 INFO L226 Difference]: Without dead ends: 171 [2024-09-12 18:06:57,491 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 687 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=599, Invalid=1657, Unknown=0, NotChecked=0, Total=2256 [2024-09-12 18:06:57,491 INFO L434 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:57,492 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 161 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:06:57,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2024-09-12 18:06:57,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2024-09-12 18:06:57,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 165 states have (on average 1.018181818181818) internal successors, (168), 167 states have internal predecessors, (168), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:57,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 171 transitions. [2024-09-12 18:06:57,527 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 171 transitions. Word has length 84 [2024-09-12 18:06:57,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:57,528 INFO L474 AbstractCegarLoop]: Abstraction has 171 states and 171 transitions. [2024-09-12 18:06:57,528 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 3.5531914893617023) internal successors, (167), 48 states have internal predecessors, (167), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:57,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:57,529 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 171 transitions. [2024-09-12 18:06:57,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-09-12 18:06:57,530 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:57,530 INFO L216 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:57,546 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-09-12 18:06:57,730 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:57,731 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:06:57,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:57,732 INFO L85 PathProgramCache]: Analyzing trace with hash -308360702, now seen corresponding path program 4 times [2024-09-12 18:06:57,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:57,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553983989] [2024-09-12 18:06:57,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:57,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:57,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:58,998 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:58,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:59,001 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 18:06:59,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:59,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553983989] [2024-09-12 18:06:59,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553983989] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:06:59,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494964231] [2024-09-12 18:06:59,001 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 18:06:59,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:59,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:06:59,003 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:06:59,004 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-12 18:06:59,081 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 18:06:59,081 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:06:59,082 INFO L262 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-09-12 18:06:59,084 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:06:59,236 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 18:06:59,236 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:07:00,886 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 18:07:00,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [494964231] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:07:00,887 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:07:00,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2024-09-12 18:07:00,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917934834] [2024-09-12 18:07:00,887 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:07:00,888 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2024-09-12 18:07:00,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:07:00,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2024-09-12 18:07:00,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2260, Invalid=6860, Unknown=0, NotChecked=0, Total=9120 [2024-09-12 18:07:00,891 INFO L87 Difference]: Start difference. First operand 171 states and 171 transitions. Second operand has 96 states, 95 states have (on average 3.3473684210526318) internal successors, (318), 96 states have internal predecessors, (318), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:07:03,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:07:03,437 INFO L93 Difference]: Finished difference Result 381 states and 404 transitions. [2024-09-12 18:07:03,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2024-09-12 18:07:03,438 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 3.3473684210526318) internal successors, (318), 96 states have internal predecessors, (318), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 163 [2024-09-12 18:07:03,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:07:03,440 INFO L225 Difference]: With dead ends: 381 [2024-09-12 18:07:03,440 INFO L226 Difference]: Without dead ends: 380 [2024-09-12 18:07:03,446 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9315 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=6860, Invalid=28296, Unknown=0, NotChecked=0, Total=35156 [2024-09-12 18:07:03,446 INFO L434 NwaCegarLoop]: 12 mSDtfsCounter, 526 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:07:03,446 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 322 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:07:03,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2024-09-12 18:07:03,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 334. [2024-09-12 18:07:03,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 328 states have (on average 1.149390243902439) internal successors, (377), 330 states have internal predecessors, (377), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:07:03,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 380 transitions. [2024-09-12 18:07:03,504 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 380 transitions. Word has length 163 [2024-09-12 18:07:03,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:07:03,504 INFO L474 AbstractCegarLoop]: Abstraction has 334 states and 380 transitions. [2024-09-12 18:07:03,505 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 3.3473684210526318) internal successors, (318), 96 states have internal predecessors, (318), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:07:03,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:07:03,505 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 380 transitions. [2024-09-12 18:07:03,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-09-12 18:07:03,506 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:07:03,507 INFO L216 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:07:03,524 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-09-12 18:07:03,707 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:07:03,707 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:07:03,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:07:03,708 INFO L85 PathProgramCache]: Analyzing trace with hash 18110596, now seen corresponding path program 4 times [2024-09-12 18:07:03,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:07:03,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725591117] [2024-09-12 18:07:03,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:07:03,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:07:03,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:07:04,235 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:07:04,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:07:04,239 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 0 proven. 1705 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:07:04,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:07:04,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725591117] [2024-09-12 18:07:04,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725591117] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:07:04,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379992561] [2024-09-12 18:07:04,239 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 18:07:04,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:07:04,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:07:04,240 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:07:04,241 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-12 18:07:04,310 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 18:07:04,310 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:07:04,311 INFO L262 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-09-12 18:07:04,313 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:07:04,482 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 0 proven. 1705 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:07:04,482 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:07:05,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 0 proven. 1705 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:07:05,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [379992561] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:07:05,201 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:07:05,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2024-09-12 18:07:05,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395928884] [2024-09-12 18:07:05,202 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:07:05,202 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-09-12 18:07:05,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:07:05,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-09-12 18:07:05,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2024-09-12 18:07:05,206 INFO L87 Difference]: Start difference. First operand 334 states and 380 transitions. Second operand has 48 states, 47 states have (on average 6.829787234042553) internal successors, (321), 48 states have internal predecessors, (321), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:07:05,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:07:05,405 INFO L93 Difference]: Finished difference Result 360 states and 383 transitions. [2024-09-12 18:07:05,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-09-12 18:07:05,406 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 6.829787234042553) internal successors, (321), 48 states have internal predecessors, (321), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 165 [2024-09-12 18:07:05,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:07:05,408 INFO L225 Difference]: With dead ends: 360 [2024-09-12 18:07:05,408 INFO L226 Difference]: Without dead ends: 359 [2024-09-12 18:07:05,409 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2024-09-12 18:07:05,409 INFO L434 NwaCegarLoop]: 14 mSDtfsCounter, 52 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:07:05,409 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 317 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:07:05,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-09-12 18:07:05,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 336. [2024-09-12 18:07:05,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 330 states have (on average 1.0787878787878789) internal successors, (356), 332 states have internal predecessors, (356), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:07:05,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 359 transitions. [2024-09-12 18:07:05,472 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 359 transitions. Word has length 165 [2024-09-12 18:07:05,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:07:05,472 INFO L474 AbstractCegarLoop]: Abstraction has 336 states and 359 transitions. [2024-09-12 18:07:05,473 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 6.829787234042553) internal successors, (321), 48 states have internal predecessors, (321), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:07:05,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:07:05,473 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 359 transitions. [2024-09-12 18:07:05,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-09-12 18:07:05,474 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:07:05,474 INFO L216 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 22, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:07:05,492 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-09-12 18:07:05,675 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-09-12 18:07:05,675 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:07:05,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:07:05,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1633054214, now seen corresponding path program 4 times [2024-09-12 18:07:05,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:07:05,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116292394] [2024-09-12 18:07:05,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:07:05,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:07:05,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:07:06,694 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:07:06,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:07:06,697 INFO L134 CoverageAnalysis]: Checked inductivity of 1771 backedges. 0 proven. 1771 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:07:06,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:07:06,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116292394] [2024-09-12 18:07:06,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116292394] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:07:06,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [764687200] [2024-09-12 18:07:06,698 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 18:07:06,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:07:06,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:07:06,700 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:07:06,702 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-09-12 18:07:06,774 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 18:07:06,774 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:07:06,776 INFO L262 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-09-12 18:07:06,778 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:07:06,946 INFO L134 CoverageAnalysis]: Checked inductivity of 1771 backedges. 0 proven. 1771 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:07:06,946 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:07:08,493 INFO L134 CoverageAnalysis]: Checked inductivity of 1771 backedges. 0 proven. 1771 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:07:08,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [764687200] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:07:08,494 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:07:08,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 95 [2024-09-12 18:07:08,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142357803] [2024-09-12 18:07:08,494 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:07:08,495 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2024-09-12 18:07:08,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:07:08,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2024-09-12 18:07:08,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2351, Invalid=6769, Unknown=0, NotChecked=0, Total=9120 [2024-09-12 18:07:08,497 INFO L87 Difference]: Start difference. First operand 336 states and 359 transitions. Second operand has 96 states, 95 states have (on average 3.526315789473684) internal successors, (335), 96 states have internal predecessors, (335), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:07:08,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:07:08,732 INFO L93 Difference]: Finished difference Result 340 states and 363 transitions. [2024-09-12 18:07:08,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2024-09-12 18:07:08,733 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 3.526315789473684) internal successors, (335), 96 states have internal predecessors, (335), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 168 [2024-09-12 18:07:08,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:07:08,734 INFO L225 Difference]: With dead ends: 340 [2024-09-12 18:07:08,734 INFO L226 Difference]: Without dead ends: 339 [2024-09-12 18:07:08,735 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2823 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=2351, Invalid=6769, Unknown=0, NotChecked=0, Total=9120 [2024-09-12 18:07:08,736 INFO L434 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:07:08,736 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 301 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:07:08,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-09-12 18:07:08,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 339. [2024-09-12 18:07:08,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 333 states have (on average 1.009009009009009) internal successors, (336), 335 states have internal predecessors, (336), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:07:08,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 339 transitions. [2024-09-12 18:07:08,789 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 339 transitions. Word has length 168 [2024-09-12 18:07:08,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:07:08,789 INFO L474 AbstractCegarLoop]: Abstraction has 339 states and 339 transitions. [2024-09-12 18:07:08,789 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 3.526315789473684) internal successors, (335), 96 states have internal predecessors, (335), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:07:08,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:07:08,790 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 339 transitions. [2024-09-12 18:07:08,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2024-09-12 18:07:08,791 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:07:08,791 INFO L216 NwaCegarLoop]: trace histogram [47, 46, 46, 46, 46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:07:08,804 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-09-12 18:07:08,991 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:07:08,991 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:07:08,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:07:08,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1903332098, now seen corresponding path program 5 times [2024-09-12 18:07:08,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:07:08,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546806121] [2024-09-12 18:07:08,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:07:08,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:07:09,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:07:13,304 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:07:13,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:07:13,309 INFO L134 CoverageAnalysis]: Checked inductivity of 7337 backedges. 0 proven. 7337 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:07:13,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:07:13,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546806121] [2024-09-12 18:07:13,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546806121] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:07:13,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1856761492] [2024-09-12 18:07:13,309 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 18:07:13,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:07:13,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:07:13,311 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:07:13,311 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-09-12 18:07:13,554 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2024-09-12 18:07:13,554 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:07:13,558 INFO L262 TraceCheckSpWp]: Trace formula consists of 823 conjuncts, 96 conjuncts are in the unsatisfiable core [2024-09-12 18:07:13,562 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:07:13,897 INFO L134 CoverageAnalysis]: Checked inductivity of 7337 backedges. 0 proven. 7337 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:07:13,897 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:07:20,199 INFO L134 CoverageAnalysis]: Checked inductivity of 7337 backedges. 0 proven. 7337 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:07:20,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1856761492] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:07:20,199 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:07:20,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2024-09-12 18:07:20,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54344070] [2024-09-12 18:07:20,199 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:07:20,200 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2024-09-12 18:07:20,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:07:20,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2024-09-12 18:07:20,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9124, Invalid=27548, Unknown=0, NotChecked=0, Total=36672 [2024-09-12 18:07:20,207 INFO L87 Difference]: Start difference. First operand 339 states and 339 transitions. Second operand has 192 states, 191 states have (on average 3.424083769633508) internal successors, (654), 192 states have internal predecessors, (654), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:07:30,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:07:30,431 INFO L93 Difference]: Finished difference Result 765 states and 812 transitions. [2024-09-12 18:07:30,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2024-09-12 18:07:30,431 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 3.424083769633508) internal successors, (654), 192 states have internal predecessors, (654), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 331 [2024-09-12 18:07:30,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:07:30,435 INFO L225 Difference]: With dead ends: 765 [2024-09-12 18:07:30,435 INFO L226 Difference]: Without dead ends: 764 [2024-09-12 18:07:30,445 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 947 GetRequests, 569 SyntacticMatches, 0 SemanticMatches, 378 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39339 ImplicationChecksByTransitivity, 17.7s TimeCoverageRelationStatistics Valid=27548, Invalid=116472, Unknown=0, NotChecked=0, Total=144020 [2024-09-12 18:07:30,446 INFO L434 NwaCegarLoop]: 12 mSDtfsCounter, 1030 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1030 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:07:30,446 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1030 Valid, 625 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:07:30,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2024-09-12 18:07:30,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 670. [2024-09-12 18:07:30,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 664 states have (on average 1.1460843373493976) internal successors, (761), 666 states have internal predecessors, (761), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:07:30,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 764 transitions. [2024-09-12 18:07:30,572 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 764 transitions. Word has length 331 [2024-09-12 18:07:30,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:07:30,573 INFO L474 AbstractCegarLoop]: Abstraction has 670 states and 764 transitions. [2024-09-12 18:07:30,573 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 3.424083769633508) internal successors, (654), 192 states have internal predecessors, (654), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:07:30,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:07:30,574 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 764 transitions. [2024-09-12 18:07:30,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2024-09-12 18:07:30,575 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:07:30,576 INFO L216 NwaCegarLoop]: trace histogram [47, 47, 47, 46, 46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:07:30,591 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-09-12 18:07:30,776 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,18 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:07:30,777 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:07:30,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:07:30,777 INFO L85 PathProgramCache]: Analyzing trace with hash -553920124, now seen corresponding path program 5 times [2024-09-12 18:07:30,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:07:30,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147105859] [2024-09-12 18:07:30,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:07:30,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:07:30,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:07:32,599 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:07:32,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:07:32,603 INFO L134 CoverageAnalysis]: Checked inductivity of 7429 backedges. 0 proven. 7429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:07:32,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:07:32,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147105859] [2024-09-12 18:07:32,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147105859] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:07:32,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685938472] [2024-09-12 18:07:32,604 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 18:07:32,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:07:32,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:07:32,606 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:07:32,607 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-09-12 18:07:32,814 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2024-09-12 18:07:32,815 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:07:32,818 INFO L262 TraceCheckSpWp]: Trace formula consists of 827 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-09-12 18:07:32,822 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:07:33,106 INFO L134 CoverageAnalysis]: Checked inductivity of 7429 backedges. 0 proven. 7429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:07:33,108 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:07:35,662 INFO L134 CoverageAnalysis]: Checked inductivity of 7429 backedges. 0 proven. 7429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:07:35,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1685938472] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:07:35,663 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:07:35,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2024-09-12 18:07:35,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300031013] [2024-09-12 18:07:35,663 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:07:35,664 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2024-09-12 18:07:35,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:07:35,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2024-09-12 18:07:35,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2024-09-12 18:07:35,667 INFO L87 Difference]: Start difference. First operand 670 states and 764 transitions. Second operand has 96 states, 95 states have (on average 6.91578947368421) internal successors, (657), 96 states have internal predecessors, (657), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:07:36,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:07:36,212 INFO L93 Difference]: Finished difference Result 720 states and 767 transitions. [2024-09-12 18:07:36,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-09-12 18:07:36,212 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 6.91578947368421) internal successors, (657), 96 states have internal predecessors, (657), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 333 [2024-09-12 18:07:36,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:07:36,216 INFO L225 Difference]: With dead ends: 720 [2024-09-12 18:07:36,216 INFO L226 Difference]: Without dead ends: 719 [2024-09-12 18:07:36,217 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 715 GetRequests, 621 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2024-09-12 18:07:36,217 INFO L434 NwaCegarLoop]: 14 mSDtfsCounter, 152 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:07:36,217 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 556 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:07:36,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2024-09-12 18:07:36,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 672. [2024-09-12 18:07:36,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 666 states have (on average 1.075075075075075) internal successors, (716), 668 states have internal predecessors, (716), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:07:36,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 719 transitions. [2024-09-12 18:07:36,312 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 719 transitions. Word has length 333 [2024-09-12 18:07:36,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:07:36,313 INFO L474 AbstractCegarLoop]: Abstraction has 672 states and 719 transitions. [2024-09-12 18:07:36,313 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 6.91578947368421) internal successors, (657), 96 states have internal predecessors, (657), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:07:36,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:07:36,314 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 719 transitions. [2024-09-12 18:07:36,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2024-09-12 18:07:36,315 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:07:36,315 INFO L216 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 47, 47, 46, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:07:36,336 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-09-12 18:07:36,516 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-09-12 18:07:36,516 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:07:36,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:07:36,517 INFO L85 PathProgramCache]: Analyzing trace with hash -570003206, now seen corresponding path program 5 times [2024-09-12 18:07:36,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:07:36,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556724797] [2024-09-12 18:07:36,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:07:36,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:07:36,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:07:40,679 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:07:40,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:07:40,684 INFO L134 CoverageAnalysis]: Checked inductivity of 7567 backedges. 0 proven. 7567 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:07:40,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:07:40,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556724797] [2024-09-12 18:07:40,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556724797] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:07:40,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [506485999] [2024-09-12 18:07:40,685 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 18:07:40,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:07:40,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:07:40,687 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:07:40,688 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-09-12 18:07:40,930 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2024-09-12 18:07:40,931 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:07:40,934 INFO L262 TraceCheckSpWp]: Trace formula consists of 834 conjuncts, 95 conjuncts are in the unsatisfiable core [2024-09-12 18:07:40,940 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:07:41,305 INFO L134 CoverageAnalysis]: Checked inductivity of 7567 backedges. 0 proven. 7567 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:07:41,306 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:07:47,257 INFO L134 CoverageAnalysis]: Checked inductivity of 7567 backedges. 0 proven. 7567 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:07:47,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [506485999] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:07:47,257 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:07:47,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 191 [2024-09-12 18:07:47,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991084087] [2024-09-12 18:07:47,258 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:07:47,259 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2024-09-12 18:07:47,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:07:47,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2024-09-12 18:07:47,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9311, Invalid=27361, Unknown=0, NotChecked=0, Total=36672 [2024-09-12 18:07:47,265 INFO L87 Difference]: Start difference. First operand 672 states and 719 transitions. Second operand has 192 states, 191 states have (on average 3.513089005235602) internal successors, (671), 192 states have internal predecessors, (671), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:07:47,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:07:47,903 INFO L93 Difference]: Finished difference Result 676 states and 723 transitions. [2024-09-12 18:07:47,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2024-09-12 18:07:47,904 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 3.513089005235602) internal successors, (671), 192 states have internal predecessors, (671), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 336 [2024-09-12 18:07:47,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:07:47,907 INFO L225 Difference]: With dead ends: 676 [2024-09-12 18:07:47,907 INFO L226 Difference]: Without dead ends: 675 [2024-09-12 18:07:47,910 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 768 GetRequests, 578 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11415 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=9311, Invalid=27361, Unknown=0, NotChecked=0, Total=36672 [2024-09-12 18:07:47,910 INFO L434 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:07:47,911 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 493 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:07:47,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2024-09-12 18:07:48,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 675. [2024-09-12 18:07:48,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 669 states have (on average 1.0044843049327354) internal successors, (672), 671 states have internal predecessors, (672), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:07:48,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 675 transitions. [2024-09-12 18:07:48,070 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 675 transitions. Word has length 336 [2024-09-12 18:07:48,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:07:48,070 INFO L474 AbstractCegarLoop]: Abstraction has 675 states and 675 transitions. [2024-09-12 18:07:48,071 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 3.513089005235602) internal successors, (671), 192 states have internal predecessors, (671), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:07:48,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:07:48,071 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 675 transitions. [2024-09-12 18:07:48,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 668 [2024-09-12 18:07:48,075 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:07:48,076 INFO L216 NwaCegarLoop]: trace histogram [95, 94, 94, 94, 94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:07:48,093 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-09-12 18:07:48,276 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-09-12 18:07:48,277 INFO L399 AbstractCegarLoop]: === Iteration 27 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:07:48,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:07:48,277 INFO L85 PathProgramCache]: Analyzing trace with hash -550826750, now seen corresponding path program 6 times [2024-09-12 18:07:48,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:07:48,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599882546] [2024-09-12 18:07:48,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:07:48,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:07:48,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:08:04,787 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:08:04,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:08:04,794 INFO L134 CoverageAnalysis]: Checked inductivity of 30785 backedges. 0 proven. 30785 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:08:04,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:08:04,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599882546] [2024-09-12 18:08:04,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599882546] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:08:04,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1280581671] [2024-09-12 18:08:04,795 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 18:08:04,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:08:04,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:08:04,797 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:08:04,799 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-09-12 18:08:05,349 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2024-09-12 18:08:05,349 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:08:05,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 1639 conjuncts, 192 conjuncts are in the unsatisfiable core [2024-09-12 18:08:05,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:08:06,014 INFO L134 CoverageAnalysis]: Checked inductivity of 30785 backedges. 0 proven. 30785 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:08:06,014 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:08:30,617 INFO L134 CoverageAnalysis]: Checked inductivity of 30785 backedges. 0 proven. 30785 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:08:30,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1280581671] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:08:30,618 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:08:30,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2024-09-12 18:08:30,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32698443] [2024-09-12 18:08:30,618 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:08:30,620 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2024-09-12 18:08:30,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:08:30,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2024-09-12 18:08:30,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36676, Invalid=110396, Unknown=0, NotChecked=0, Total=147072 [2024-09-12 18:08:30,635 INFO L87 Difference]: Start difference. First operand 675 states and 675 transitions. Second operand has 384 states, 383 states have (on average 3.462140992167102) internal successors, (1326), 384 states have internal predecessors, (1326), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:11,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:09:11,272 INFO L93 Difference]: Finished difference Result 1533 states and 1628 transitions. [2024-09-12 18:09:11,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 383 states. [2024-09-12 18:09:11,273 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 383 states have (on average 3.462140992167102) internal successors, (1326), 384 states have internal predecessors, (1326), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 667 [2024-09-12 18:09:11,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:09:11,280 INFO L225 Difference]: With dead ends: 1533 [2024-09-12 18:09:11,280 INFO L226 Difference]: Without dead ends: 1532 [2024-09-12 18:09:11,318 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1907 GetRequests, 1145 SyntacticMatches, 0 SemanticMatches, 762 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161595 ImplicationChecksByTransitivity, 69.2s TimeCoverageRelationStatistics Valid=110396, Invalid=472536, Unknown=0, NotChecked=0, Total=582932 [2024-09-12 18:09:11,319 INFO L434 NwaCegarLoop]: 12 mSDtfsCounter, 3946 mSDsluCounter, 1037 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3946 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:09:11,320 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [3946 Valid, 1049 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:09:11,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1532 states. [2024-09-12 18:09:11,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1532 to 1342. [2024-09-12 18:09:11,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1342 states, 1336 states have (on average 1.1444610778443114) internal successors, (1529), 1338 states have internal predecessors, (1529), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:11,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 1532 transitions. [2024-09-12 18:09:11,543 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 1532 transitions. Word has length 667 [2024-09-12 18:09:11,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:09:11,544 INFO L474 AbstractCegarLoop]: Abstraction has 1342 states and 1532 transitions. [2024-09-12 18:09:11,544 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 383 states have (on average 3.462140992167102) internal successors, (1326), 384 states have internal predecessors, (1326), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:11,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:11,545 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 1532 transitions. [2024-09-12 18:09:11,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 670 [2024-09-12 18:09:11,549 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:09:11,549 INFO L216 NwaCegarLoop]: trace histogram [95, 95, 95, 94, 94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:09:11,565 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-09-12 18:09:11,750 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-09-12 18:09:11,750 INFO L399 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:09:11,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:11,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1063527548, now seen corresponding path program 6 times [2024-09-12 18:09:11,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:09:11,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031609718] [2024-09-12 18:09:11,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:09:11,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:09:11,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:17,686 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:09:17,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:17,692 INFO L134 CoverageAnalysis]: Checked inductivity of 30973 backedges. 0 proven. 30973 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:17,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:09:17,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031609718] [2024-09-12 18:09:17,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031609718] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:09:17,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70243689] [2024-09-12 18:09:17,692 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 18:09:17,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:09:17,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:09:17,694 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:09:17,696 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-09-12 18:09:18,246 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2024-09-12 18:09:18,247 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:09:18,255 INFO L262 TraceCheckSpWp]: Trace formula consists of 1643 conjuncts, 97 conjuncts are in the unsatisfiable core [2024-09-12 18:09:18,264 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:09:18,831 INFO L134 CoverageAnalysis]: Checked inductivity of 30973 backedges. 0 proven. 30973 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:18,831 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:09:28,300 INFO L134 CoverageAnalysis]: Checked inductivity of 30973 backedges. 0 proven. 30973 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:28,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [70243689] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:09:28,300 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:09:28,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2024-09-12 18:09:28,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858288700] [2024-09-12 18:09:28,301 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:09:28,302 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2024-09-12 18:09:28,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:09:28,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2024-09-12 18:09:28,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2024-09-12 18:09:28,313 INFO L87 Difference]: Start difference. First operand 1342 states and 1532 transitions. Second operand has 192 states, 191 states have (on average 6.958115183246074) internal successors, (1329), 192 states have internal predecessors, (1329), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:30,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:09:30,977 INFO L93 Difference]: Finished difference Result 1440 states and 1535 transitions. [2024-09-12 18:09:30,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2024-09-12 18:09:30,978 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 6.958115183246074) internal successors, (1329), 192 states have internal predecessors, (1329), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 669 [2024-09-12 18:09:30,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:09:30,986 INFO L225 Difference]: With dead ends: 1440 [2024-09-12 18:09:30,986 INFO L226 Difference]: Without dead ends: 1439 [2024-09-12 18:09:30,990 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1435 GetRequests, 1245 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.9s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2024-09-12 18:09:30,990 INFO L434 NwaCegarLoop]: 14 mSDtfsCounter, 410 mSDsluCounter, 1082 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:09:30,991 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 1096 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:09:30,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1439 states. [2024-09-12 18:09:31,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1439 to 1344. [2024-09-12 18:09:31,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1344 states, 1338 states have (on average 1.0732436472346787) internal successors, (1436), 1340 states have internal predecessors, (1436), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:31,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1344 states to 1344 states and 1439 transitions. [2024-09-12 18:09:31,379 INFO L78 Accepts]: Start accepts. Automaton has 1344 states and 1439 transitions. Word has length 669 [2024-09-12 18:09:31,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:09:31,379 INFO L474 AbstractCegarLoop]: Abstraction has 1344 states and 1439 transitions. [2024-09-12 18:09:31,380 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 6.958115183246074) internal successors, (1329), 192 states have internal predecessors, (1329), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:31,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:31,381 INFO L276 IsEmpty]: Start isEmpty. Operand 1344 states and 1439 transitions. [2024-09-12 18:09:31,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 673 [2024-09-12 18:09:31,385 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:09:31,385 INFO L216 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 95, 95, 94, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:09:31,406 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-09-12 18:09:31,585 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-09-12 18:09:31,586 INFO L399 AbstractCegarLoop]: === Iteration 29 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:09:31,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:31,586 INFO L85 PathProgramCache]: Analyzing trace with hash 424619770, now seen corresponding path program 6 times [2024-09-12 18:09:31,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:09:31,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452944971] [2024-09-12 18:09:31,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:09:31,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:09:31,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:47,939 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:09:47,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:47,945 INFO L134 CoverageAnalysis]: Checked inductivity of 31255 backedges. 0 proven. 31255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:47,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:09:47,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452944971] [2024-09-12 18:09:47,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452944971] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:09:47,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1518015891] [2024-09-12 18:09:47,946 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 18:09:47,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:09:47,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:09:47,948 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:09:47,949 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-09-12 18:09:48,483 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2024-09-12 18:09:48,483 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:09:48,497 INFO L262 TraceCheckSpWp]: Trace formula consists of 1650 conjuncts, 191 conjuncts are in the unsatisfiable core [2024-09-12 18:09:48,505 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:09:49,104 INFO L134 CoverageAnalysis]: Checked inductivity of 31255 backedges. 0 proven. 31255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:49,104 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:10:12,622 INFO L134 CoverageAnalysis]: Checked inductivity of 31255 backedges. 0 proven. 31255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:10:12,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1518015891] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:10:12,622 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:10:12,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [191, 191, 191] total 383 [2024-09-12 18:10:12,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706188042] [2024-09-12 18:10:12,622 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:10:12,623 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2024-09-12 18:10:12,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:10:12,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2024-09-12 18:10:12,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37055, Invalid=110017, Unknown=0, NotChecked=0, Total=147072 [2024-09-12 18:10:12,639 INFO L87 Difference]: Start difference. First operand 1344 states and 1439 transitions. Second operand has 384 states, 383 states have (on average 3.506527415143603) internal successors, (1343), 384 states have internal predecessors, (1343), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:10:15,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:10:15,521 INFO L93 Difference]: Finished difference Result 1348 states and 1443 transitions. [2024-09-12 18:10:15,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 382 states. [2024-09-12 18:10:15,522 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 383 states have (on average 3.506527415143603) internal successors, (1343), 384 states have internal predecessors, (1343), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 672 [2024-09-12 18:10:15,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:10:15,527 INFO L225 Difference]: With dead ends: 1348 [2024-09-12 18:10:15,527 INFO L226 Difference]: Without dead ends: 1347 [2024-09-12 18:10:15,533 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1536 GetRequests, 1154 SyntacticMatches, 0 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45879 ImplicationChecksByTransitivity, 31.4s TimeCoverageRelationStatistics Valid=37055, Invalid=110017, Unknown=0, NotChecked=0, Total=147072 [2024-09-12 18:10:15,534 INFO L434 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 884 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 897 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:10:15,534 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 897 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:10:15,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1347 states. [2024-09-12 18:10:15,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1347 to 1347. [2024-09-12 18:10:15,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1347 states, 1341 states have (on average 1.0022371364653244) internal successors, (1344), 1343 states have internal predecessors, (1344), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:10:15,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1347 states to 1347 states and 1347 transitions. [2024-09-12 18:10:15,798 INFO L78 Accepts]: Start accepts. Automaton has 1347 states and 1347 transitions. Word has length 672 [2024-09-12 18:10:15,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:10:15,799 INFO L474 AbstractCegarLoop]: Abstraction has 1347 states and 1347 transitions. [2024-09-12 18:10:15,799 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 383 states have (on average 3.506527415143603) internal successors, (1343), 384 states have internal predecessors, (1343), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:10:15,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:10:15,800 INFO L276 IsEmpty]: Start isEmpty. Operand 1347 states and 1347 transitions. [2024-09-12 18:10:15,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1340 [2024-09-12 18:10:15,812 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:10:15,813 INFO L216 NwaCegarLoop]: trace histogram [191, 190, 190, 190, 190, 190, 190, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:10:15,834 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-09-12 18:10:16,013 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-09-12 18:10:16,014 INFO L399 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:10:16,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:10:16,014 INFO L85 PathProgramCache]: Analyzing trace with hash 249565442, now seen corresponding path program 7 times [2024-09-12 18:10:16,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:10:16,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115164528] [2024-09-12 18:10:16,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:10:16,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:10:16,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat