./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-invgen/apache-get-tag.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-invgen/apache-get-tag.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 ad8e21886f5f45a7c58400298498a881b4f628bf6fff913be81ab14cf250dd19 --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 17:59:08,809 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 17:59:08,883 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 17:59:08,891 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 17:59:08,892 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 17:59:08,928 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 17:59:08,929 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 17:59:08,929 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 17:59:08,930 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 17:59:08,930 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 17:59:08,931 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 17:59:08,931 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 17:59:08,932 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 17:59:08,933 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 17:59:08,933 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 17:59:08,933 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 17:59:08,934 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 17:59:08,934 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 17:59:08,934 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 17:59:08,935 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 17:59:08,935 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 17:59:08,939 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 17:59:08,940 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 17:59:08,940 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 17:59:08,940 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 17:59:08,941 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 17:59:08,941 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 17:59:08,941 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 17:59:08,941 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 17:59:08,942 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 17:59:08,942 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 17:59:08,942 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 17:59:08,943 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 17:59:08,943 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 17:59:08,945 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 17:59:08,945 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 17:59:08,945 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 17:59:08,946 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 17:59:08,947 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 17:59:08,947 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 17:59:08,947 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 17:59:08,948 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 17:59:08,948 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/automizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad8e21886f5f45a7c58400298498a881b4f628bf6fff913be81ab14cf250dd19 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 17:59:09,272 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 17:59:09,298 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 17:59:09,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 17:59:09,303 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 17:59:09,304 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 17:59:09,305 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loop-invgen/apache-get-tag.i [2024-09-12 17:59:10,894 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 17:59:11,080 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 17:59:11,080 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/apache-get-tag.i [2024-09-12 17:59:11,087 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/0558ca445/be8bd5371bf2438cb322ffad850689f3/FLAGee0cec3bf [2024-09-12 17:59:11,099 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/0558ca445/be8bd5371bf2438cb322ffad850689f3 [2024-09-12 17:59:11,101 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 17:59:11,103 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 17:59:11,104 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 17:59:11,104 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 17:59:11,109 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 17:59:11,110 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 05:59:11" (1/1) ... [2024-09-12 17:59:11,111 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5927dc24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:11, skipping insertion in model container [2024-09-12 17:59:11,111 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 05:59:11" (1/1) ... [2024-09-12 17:59:11,130 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 17:59:11,303 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-invgen/apache-get-tag.i[893,906] [2024-09-12 17:59:11,331 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 17:59:11,342 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 17:59:11,355 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-invgen/apache-get-tag.i[893,906] [2024-09-12 17:59:11,365 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 17:59:11,387 INFO L204 MainTranslator]: Completed translation [2024-09-12 17:59:11,387 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:11 WrapperNode [2024-09-12 17:59:11,388 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 17:59:11,389 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 17:59:11,390 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 17:59:11,390 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 17:59:11,397 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:11" (1/1) ... [2024-09-12 17:59:11,404 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:11" (1/1) ... [2024-09-12 17:59:11,414 INFO L138 Inliner]: procedures = 16, calls = 22, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 17:59:11,418 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 17:59:11,419 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 17:59:11,420 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 17:59:11,420 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 17:59:11,430 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:11" (1/1) ... [2024-09-12 17:59:11,431 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:11" (1/1) ... [2024-09-12 17:59:11,434 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:11" (1/1) ... [2024-09-12 17:59:11,454 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 17:59:11,454 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:11" (1/1) ... [2024-09-12 17:59:11,455 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:11" (1/1) ... [2024-09-12 17:59:11,457 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:11" (1/1) ... [2024-09-12 17:59:11,463 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:11" (1/1) ... [2024-09-12 17:59:11,465 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:11" (1/1) ... [2024-09-12 17:59:11,466 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:11" (1/1) ... [2024-09-12 17:59:11,467 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 17:59:11,468 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 17:59:11,468 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 17:59:11,468 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 17:59:11,469 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:11" (1/1) ... [2024-09-12 17:59:11,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 17:59:11,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:11,508 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 17:59:11,511 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 17:59:11,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 17:59:11,563 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 17:59:11,563 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 17:59:11,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 17:59:11,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 17:59:11,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 17:59:11,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 17:59:11,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 17:59:11,565 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 17:59:11,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 17:59:11,642 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 17:59:11,644 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 17:59:11,905 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-09-12 17:59:11,906 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 17:59:11,941 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 17:59:11,942 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-12 17:59:11,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 05:59:11 BoogieIcfgContainer [2024-09-12 17:59:11,944 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 17:59:11,946 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 17:59:11,946 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 17:59:11,949 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 17:59:11,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 05:59:11" (1/3) ... [2024-09-12 17:59:11,950 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d44e6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 05:59:11, skipping insertion in model container [2024-09-12 17:59:11,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:11" (2/3) ... [2024-09-12 17:59:11,952 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d44e6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 05:59:11, skipping insertion in model container [2024-09-12 17:59:11,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 05:59:11" (3/3) ... [2024-09-12 17:59:11,953 INFO L112 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i [2024-09-12 17:59:11,969 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 17:59:11,970 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2024-09-12 17:59:12,032 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 17:59:12,039 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;@64f235a6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 17:59:12,040 INFO L337 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-09-12 17:59:12,044 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 32 states have (on average 1.75) internal successors, (56), 47 states have internal predecessors, (56), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2024-09-12 17:59:12,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-09-12 17:59:12,051 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:12,052 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:12,053 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:12,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:12,060 INFO L85 PathProgramCache]: Analyzing trace with hash -97605049, now seen corresponding path program 1 times [2024-09-12 17:59:12,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:12,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496444815] [2024-09-12 17:59:12,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:12,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:12,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:12,227 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:12,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:12,237 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 17:59:12,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:12,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496444815] [2024-09-12 17:59:12,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496444815] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:12,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:59:12,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 17:59:12,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879496807] [2024-09-12 17:59:12,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:12,246 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 17:59:12,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:12,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 17:59:12,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 17:59:12,274 INFO L87 Difference]: Start difference. First operand has 65 states, 32 states have (on average 1.75) internal successors, (56), 47 states have internal predecessors, (56), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 17:59:12,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:12,375 INFO L93 Difference]: Finished difference Result 120 states and 189 transitions. [2024-09-12 17:59:12,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 17:59:12,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 7 [2024-09-12 17:59:12,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:12,383 INFO L225 Difference]: With dead ends: 120 [2024-09-12 17:59:12,384 INFO L226 Difference]: Without dead ends: 60 [2024-09-12 17:59:12,387 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 17:59:12,390 INFO L434 NwaCegarLoop]: 80 mSDtfsCounter, 1 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:12,391 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 152 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 17:59:12,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-09-12 17:59:12,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-09-12 17:59:12,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 30 states have (on average 1.5666666666666667) internal successors, (47), 43 states have internal predecessors, (47), 18 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 17:59:12,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 78 transitions. [2024-09-12 17:59:12,437 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 78 transitions. Word has length 7 [2024-09-12 17:59:12,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:12,438 INFO L474 AbstractCegarLoop]: Abstraction has 60 states and 78 transitions. [2024-09-12 17:59:12,438 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 17:59:12,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:12,439 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 78 transitions. [2024-09-12 17:59:12,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-09-12 17:59:12,439 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:12,439 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:12,440 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 17:59:12,440 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:12,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:12,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1269210823, now seen corresponding path program 1 times [2024-09-12 17:59:12,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:12,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122611761] [2024-09-12 17:59:12,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:12,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:12,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:12,488 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:12,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:12,495 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 17:59:12,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:12,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122611761] [2024-09-12 17:59:12,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122611761] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:12,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:59:12,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 17:59:12,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216948486] [2024-09-12 17:59:12,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:12,497 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 17:59:12,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:12,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 17:59:12,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 17:59:12,498 INFO L87 Difference]: Start difference. First operand 60 states and 78 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 17:59:12,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:12,525 INFO L93 Difference]: Finished difference Result 60 states and 78 transitions. [2024-09-12 17:59:12,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 17:59:12,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 8 [2024-09-12 17:59:12,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:12,527 INFO L225 Difference]: With dead ends: 60 [2024-09-12 17:59:12,527 INFO L226 Difference]: Without dead ends: 59 [2024-09-12 17:59:12,528 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 17:59:12,529 INFO L434 NwaCegarLoop]: 67 mSDtfsCounter, 36 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 91 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 17:59:12,529 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 91 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 17:59:12,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-09-12 17:59:12,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2024-09-12 17:59:12,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 30 states have (on average 1.5333333333333334) internal successors, (46), 42 states have internal predecessors, (46), 18 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 17:59:12,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 77 transitions. [2024-09-12 17:59:12,542 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 77 transitions. Word has length 8 [2024-09-12 17:59:12,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:12,542 INFO L474 AbstractCegarLoop]: Abstraction has 59 states and 77 transitions. [2024-09-12 17:59:12,542 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 17:59:12,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:12,543 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 77 transitions. [2024-09-12 17:59:12,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-09-12 17:59:12,544 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:12,544 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:12,544 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 17:59:12,544 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:12,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:12,545 INFO L85 PathProgramCache]: Analyzing trace with hash 268954014, now seen corresponding path program 1 times [2024-09-12 17:59:12,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:12,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437805793] [2024-09-12 17:59:12,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:12,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:12,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:12,716 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:12,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:12,722 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 17:59:12,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:12,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437805793] [2024-09-12 17:59:12,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437805793] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:12,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:59:12,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 17:59:12,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416111037] [2024-09-12 17:59:12,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:12,724 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 17:59:12,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:12,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 17:59:12,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 17:59:12,725 INFO L87 Difference]: Start difference. First operand 59 states and 77 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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 17:59:12,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:12,885 INFO L93 Difference]: Finished difference Result 76 states and 100 transitions. [2024-09-12 17:59:12,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 17:59:12,885 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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 14 [2024-09-12 17:59:12,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:12,887 INFO L225 Difference]: With dead ends: 76 [2024-09-12 17:59:12,887 INFO L226 Difference]: Without dead ends: 74 [2024-09-12 17:59:12,887 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 17:59:12,889 INFO L434 NwaCegarLoop]: 66 mSDtfsCounter, 6 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:12,889 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 238 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:12,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-09-12 17:59:12,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 69. [2024-09-12 17:59:12,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 36 states have (on average 1.5) internal successors, (54), 51 states have internal predecessors, (54), 21 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 17:59:12,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 91 transitions. [2024-09-12 17:59:12,914 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 91 transitions. Word has length 14 [2024-09-12 17:59:12,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:12,914 INFO L474 AbstractCegarLoop]: Abstraction has 69 states and 91 transitions. [2024-09-12 17:59:12,914 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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 17:59:12,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:12,915 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 91 transitions. [2024-09-12 17:59:12,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-09-12 17:59:12,916 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:12,916 INFO L216 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:12,916 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-12 17:59:12,917 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:12,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:12,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1682460040, now seen corresponding path program 1 times [2024-09-12 17:59:12,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:12,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233082738] [2024-09-12 17:59:12,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:12,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:12,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:13,110 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:13,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:13,119 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 17:59:13,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:13,135 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:13,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:13,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233082738] [2024-09-12 17:59:13,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233082738] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:13,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:59:13,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-09-12 17:59:13,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327915407] [2024-09-12 17:59:13,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:13,137 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 17:59:13,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:13,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 17:59:13,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-09-12 17:59:13,140 INFO L87 Difference]: Start difference. First operand 69 states and 91 transitions. Second operand has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 17:59:13,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:13,310 INFO L93 Difference]: Finished difference Result 80 states and 103 transitions. [2024-09-12 17:59:13,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 17:59:13,312 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19 [2024-09-12 17:59:13,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:13,313 INFO L225 Difference]: With dead ends: 80 [2024-09-12 17:59:13,314 INFO L226 Difference]: Without dead ends: 69 [2024-09-12 17:59:13,314 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-09-12 17:59:13,316 INFO L434 NwaCegarLoop]: 64 mSDtfsCounter, 13 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:13,316 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 232 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:13,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-09-12 17:59:13,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 65. [2024-09-12 17:59:13,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 36 states have (on average 1.4722222222222223) internal successors, (53), 50 states have internal predecessors, (53), 17 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 17:59:13,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 82 transitions. [2024-09-12 17:59:13,335 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 82 transitions. Word has length 19 [2024-09-12 17:59:13,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:13,342 INFO L474 AbstractCegarLoop]: Abstraction has 65 states and 82 transitions. [2024-09-12 17:59:13,342 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 17:59:13,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:13,343 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 82 transitions. [2024-09-12 17:59:13,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-09-12 17:59:13,343 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:13,344 INFO L216 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:13,344 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-12 17:59:13,344 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:13,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:13,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1048480119, now seen corresponding path program 1 times [2024-09-12 17:59:13,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:13,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186175703] [2024-09-12 17:59:13,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:13,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:13,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:13,495 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:13,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:13,503 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:13,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:13,512 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:13,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:13,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186175703] [2024-09-12 17:59:13,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186175703] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:13,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:59:13,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 17:59:13,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282397943] [2024-09-12 17:59:13,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:13,514 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 17:59:13,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:13,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 17:59:13,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-09-12 17:59:13,515 INFO L87 Difference]: Start difference. First operand 65 states and 82 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 17:59:13,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:13,647 INFO L93 Difference]: Finished difference Result 75 states and 93 transitions. [2024-09-12 17:59:13,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 17:59:13,647 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 20 [2024-09-12 17:59:13,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:13,650 INFO L225 Difference]: With dead ends: 75 [2024-09-12 17:59:13,652 INFO L226 Difference]: Without dead ends: 73 [2024-09-12 17:59:13,653 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-09-12 17:59:13,654 INFO L434 NwaCegarLoop]: 58 mSDtfsCounter, 6 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:13,654 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 212 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:13,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-09-12 17:59:13,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 71. [2024-09-12 17:59:13,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 39 states have (on average 1.435897435897436) internal successors, (56), 53 states have internal predecessors, (56), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2024-09-12 17:59:13,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 89 transitions. [2024-09-12 17:59:13,677 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 89 transitions. Word has length 20 [2024-09-12 17:59:13,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:13,677 INFO L474 AbstractCegarLoop]: Abstraction has 71 states and 89 transitions. [2024-09-12 17:59:13,677 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 17:59:13,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:13,678 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 89 transitions. [2024-09-12 17:59:13,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-09-12 17:59:13,678 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:13,678 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:13,679 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-09-12 17:59:13,679 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:13,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:13,682 INFO L85 PathProgramCache]: Analyzing trace with hash -2021013095, now seen corresponding path program 1 times [2024-09-12 17:59:13,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:13,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263783857] [2024-09-12 17:59:13,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:13,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:13,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:13,745 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:13,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:13,753 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:13,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:13,759 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:13,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:13,768 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 17:59:13,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:13,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263783857] [2024-09-12 17:59:13,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263783857] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:13,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:59:13,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 17:59:13,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131259550] [2024-09-12 17:59:13,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:13,773 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 17:59:13,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:13,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 17:59:13,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 17:59:13,774 INFO L87 Difference]: Start difference. First operand 71 states and 89 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 17:59:13,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:13,836 INFO L93 Difference]: Finished difference Result 77 states and 95 transitions. [2024-09-12 17:59:13,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 17:59:13,837 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2024-09-12 17:59:13,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:13,838 INFO L225 Difference]: With dead ends: 77 [2024-09-12 17:59:13,838 INFO L226 Difference]: Without dead ends: 75 [2024-09-12 17:59:13,838 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 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 17:59:13,839 INFO L434 NwaCegarLoop]: 64 mSDtfsCounter, 2 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:13,840 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 177 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 17:59:13,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-09-12 17:59:13,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 74. [2024-09-12 17:59:13,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 42 states have (on average 1.4047619047619047) internal successors, (59), 55 states have internal predecessors, (59), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-09-12 17:59:13,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 92 transitions. [2024-09-12 17:59:13,865 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 92 transitions. Word has length 23 [2024-09-12 17:59:13,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:13,866 INFO L474 AbstractCegarLoop]: Abstraction has 74 states and 92 transitions. [2024-09-12 17:59:13,866 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 17:59:13,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:13,866 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 92 transitions. [2024-09-12 17:59:13,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-09-12 17:59:13,867 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:13,867 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:13,867 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-09-12 17:59:13,867 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:13,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:13,868 INFO L85 PathProgramCache]: Analyzing trace with hash -760508325, now seen corresponding path program 1 times [2024-09-12 17:59:13,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:13,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347784941] [2024-09-12 17:59:13,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:13,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:13,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:13,909 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:13,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:13,912 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:13,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:13,916 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:13,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:13,920 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 17:59:13,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:13,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347784941] [2024-09-12 17:59:13,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347784941] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:13,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:59:13,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 17:59:13,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046955606] [2024-09-12 17:59:13,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:13,921 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 17:59:13,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:13,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 17:59:13,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 17:59:13,922 INFO L87 Difference]: Start difference. First operand 74 states and 92 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 17:59:13,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:13,978 INFO L93 Difference]: Finished difference Result 79 states and 97 transitions. [2024-09-12 17:59:13,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 17:59:13,979 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2024-09-12 17:59:13,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:13,980 INFO L225 Difference]: With dead ends: 79 [2024-09-12 17:59:13,980 INFO L226 Difference]: Without dead ends: 77 [2024-09-12 17:59:13,981 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 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 17:59:13,985 INFO L434 NwaCegarLoop]: 64 mSDtfsCounter, 2 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:13,985 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 177 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 17:59:13,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-09-12 17:59:14,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-09-12 17:59:14,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 45 states have (on average 1.3777777777777778) internal successors, (62), 57 states have internal predecessors, (62), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-09-12 17:59:14,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 95 transitions. [2024-09-12 17:59:14,004 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 95 transitions. Word has length 23 [2024-09-12 17:59:14,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:14,005 INFO L474 AbstractCegarLoop]: Abstraction has 77 states and 95 transitions. [2024-09-12 17:59:14,005 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 17:59:14,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:14,006 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 95 transitions. [2024-09-12 17:59:14,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-09-12 17:59:14,007 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:14,007 INFO L216 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:14,007 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-12 17:59:14,007 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:14,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:14,009 INFO L85 PathProgramCache]: Analyzing trace with hash 2113810150, now seen corresponding path program 1 times [2024-09-12 17:59:14,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:14,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048188761] [2024-09-12 17:59:14,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:14,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:14,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:14,110 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:14,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:14,114 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:14,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:14,118 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:14,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:14,126 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 17:59:14,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:14,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048188761] [2024-09-12 17:59:14,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048188761] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:14,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:59:14,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-09-12 17:59:14,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173662619] [2024-09-12 17:59:14,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:14,131 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 17:59:14,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:14,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 17:59:14,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-09-12 17:59:14,132 INFO L87 Difference]: Start difference. First operand 77 states and 95 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 17:59:14,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:14,276 INFO L93 Difference]: Finished difference Result 97 states and 123 transitions. [2024-09-12 17:59:14,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 17:59:14,277 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2024-09-12 17:59:14,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:14,279 INFO L225 Difference]: With dead ends: 97 [2024-09-12 17:59:14,279 INFO L226 Difference]: Without dead ends: 94 [2024-09-12 17:59:14,279 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-09-12 17:59:14,280 INFO L434 NwaCegarLoop]: 53 mSDtfsCounter, 11 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:14,284 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 288 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:14,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-09-12 17:59:14,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 89. [2024-09-12 17:59:14,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 53 states have (on average 1.3773584905660377) internal successors, (73), 68 states have internal predecessors, (73), 22 states have call successors, (22), 6 states have call predecessors, (22), 5 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 17:59:14,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 112 transitions. [2024-09-12 17:59:14,306 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 112 transitions. Word has length 30 [2024-09-12 17:59:14,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:14,307 INFO L474 AbstractCegarLoop]: Abstraction has 89 states and 112 transitions. [2024-09-12 17:59:14,307 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 17:59:14,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:14,309 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 112 transitions. [2024-09-12 17:59:14,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-09-12 17:59:14,310 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:14,310 INFO L216 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:14,310 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-09-12 17:59:14,310 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:14,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:14,312 INFO L85 PathProgramCache]: Analyzing trace with hash 690110502, now seen corresponding path program 1 times [2024-09-12 17:59:14,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:14,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997782489] [2024-09-12 17:59:14,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:14,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:14,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:14,409 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:14,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:14,412 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:14,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:14,418 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:14,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:14,423 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 17:59:14,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:14,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997782489] [2024-09-12 17:59:14,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997782489] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:14,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1000202443] [2024-09-12 17:59:14,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:14,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:14,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:14,427 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 17:59:14,428 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 17:59:14,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:14,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 17:59:14,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:14,578 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 17:59:14,579 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:14,686 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 17:59:14,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1000202443] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:14,689 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:14,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 8] total 15 [2024-09-12 17:59:14,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874447915] [2024-09-12 17:59:14,689 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:14,690 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 17:59:14,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:14,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 17:59:14,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-09-12 17:59:14,692 INFO L87 Difference]: Start difference. First operand 89 states and 112 transitions. Second operand has 15 states, 15 states have (on average 3.0) internal successors, (45), 13 states have internal predecessors, (45), 5 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 17:59:14,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:14,959 INFO L93 Difference]: Finished difference Result 95 states and 117 transitions. [2024-09-12 17:59:14,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 17:59:14,960 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.0) internal successors, (45), 13 states have internal predecessors, (45), 5 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 30 [2024-09-12 17:59:14,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:14,962 INFO L225 Difference]: With dead ends: 95 [2024-09-12 17:59:14,962 INFO L226 Difference]: Without dead ends: 91 [2024-09-12 17:59:14,963 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2024-09-12 17:59:14,966 INFO L434 NwaCegarLoop]: 54 mSDtfsCounter, 9 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:14,967 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 520 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:59:14,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-09-12 17:59:14,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-09-12 17:59:14,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 56 states have (on average 1.3214285714285714) internal successors, (74), 69 states have internal predecessors, (74), 21 states have call successors, (21), 7 states have call predecessors, (21), 6 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 17:59:14,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 112 transitions. [2024-09-12 17:59:14,990 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 112 transitions. Word has length 30 [2024-09-12 17:59:14,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:14,991 INFO L474 AbstractCegarLoop]: Abstraction has 91 states and 112 transitions. [2024-09-12 17:59:14,991 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.0) internal successors, (45), 13 states have internal predecessors, (45), 5 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 17:59:14,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:14,992 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 112 transitions. [2024-09-12 17:59:14,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-09-12 17:59:14,995 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:14,995 INFO L216 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 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 17:59:15,012 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 17:59:15,196 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:15,196 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:15,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:15,197 INFO L85 PathProgramCache]: Analyzing trace with hash 240114175, now seen corresponding path program 1 times [2024-09-12 17:59:15,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:15,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513103453] [2024-09-12 17:59:15,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:15,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:15,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:15,374 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:15,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:15,380 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:15,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:15,386 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:15,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:15,393 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 17:59:15,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:15,398 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 17:59:15,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:15,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513103453] [2024-09-12 17:59:15,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513103453] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:15,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1285530093] [2024-09-12 17:59:15,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:15,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:15,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:15,401 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 17:59:15,403 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 17:59:15,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:15,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-12 17:59:15,453 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:15,637 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 17:59:15,638 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:15,834 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 17:59:15,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1285530093] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:15,835 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:15,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 18 [2024-09-12 17:59:15,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310382467] [2024-09-12 17:59:15,837 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:15,837 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-12 17:59:15,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:15,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-12 17:59:15,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2024-09-12 17:59:15,839 INFO L87 Difference]: Start difference. First operand 91 states and 112 transitions. Second operand has 18 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 16 states have internal predecessors, (42), 6 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (8), 5 states have call predecessors, (8), 6 states have call successors, (8) [2024-09-12 17:59:16,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:16,126 INFO L93 Difference]: Finished difference Result 106 states and 131 transitions. [2024-09-12 17:59:16,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 17:59:16,127 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 16 states have internal predecessors, (42), 6 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (8), 5 states have call predecessors, (8), 6 states have call successors, (8) Word has length 36 [2024-09-12 17:59:16,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:16,128 INFO L225 Difference]: With dead ends: 106 [2024-09-12 17:59:16,128 INFO L226 Difference]: Without dead ends: 104 [2024-09-12 17:59:16,129 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 71 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2024-09-12 17:59:16,129 INFO L434 NwaCegarLoop]: 45 mSDtfsCounter, 11 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:16,129 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 445 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:59:16,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-09-12 17:59:16,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 95. [2024-09-12 17:59:16,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 59 states have (on average 1.305084745762712) internal successors, (77), 72 states have internal predecessors, (77), 21 states have call successors, (21), 8 states have call predecessors, (21), 7 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 17:59:16,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 115 transitions. [2024-09-12 17:59:16,151 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 115 transitions. Word has length 36 [2024-09-12 17:59:16,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:16,151 INFO L474 AbstractCegarLoop]: Abstraction has 95 states and 115 transitions. [2024-09-12 17:59:16,152 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 16 states have internal predecessors, (42), 6 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (8), 5 states have call predecessors, (8), 6 states have call successors, (8) [2024-09-12 17:59:16,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:16,152 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 115 transitions. [2024-09-12 17:59:16,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-09-12 17:59:16,156 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:16,157 INFO L216 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:16,173 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-12 17:59:16,357 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-09-12 17:59:16,357 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:16,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:16,358 INFO L85 PathProgramCache]: Analyzing trace with hash -873950291, now seen corresponding path program 1 times [2024-09-12 17:59:16,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:16,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826126660] [2024-09-12 17:59:16,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:16,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:16,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:16,498 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:16,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:16,501 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:16,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:16,505 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:16,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:16,509 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 17:59:16,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:16,513 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 17:59:16,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:16,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826126660] [2024-09-12 17:59:16,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826126660] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:16,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:59:16,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-09-12 17:59:16,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395105950] [2024-09-12 17:59:16,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:16,514 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 17:59:16,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:16,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 17:59:16,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-09-12 17:59:16,515 INFO L87 Difference]: Start difference. First operand 95 states and 115 transitions. Second operand has 8 states, 8 states have (on average 2.625) internal successors, (21), 7 states have internal predecessors, (21), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 17:59:16,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:16,665 INFO L93 Difference]: Finished difference Result 106 states and 127 transitions. [2024-09-12 17:59:16,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 17:59:16,666 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 7 states have internal predecessors, (21), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 37 [2024-09-12 17:59:16,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:16,667 INFO L225 Difference]: With dead ends: 106 [2024-09-12 17:59:16,667 INFO L226 Difference]: Without dead ends: 102 [2024-09-12 17:59:16,668 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-09-12 17:59:16,668 INFO L434 NwaCegarLoop]: 48 mSDtfsCounter, 9 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:16,668 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 261 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:16,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-09-12 17:59:16,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 100. [2024-09-12 17:59:16,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 62 states have (on average 1.2741935483870968) internal successors, (79), 74 states have internal predecessors, (79), 22 states have call successors, (22), 9 states have call predecessors, (22), 8 states have return successors, (18), 16 states have call predecessors, (18), 18 states have call successors, (18) [2024-09-12 17:59:16,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 119 transitions. [2024-09-12 17:59:16,694 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 119 transitions. Word has length 37 [2024-09-12 17:59:16,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:16,694 INFO L474 AbstractCegarLoop]: Abstraction has 100 states and 119 transitions. [2024-09-12 17:59:16,694 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 7 states have internal predecessors, (21), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 17:59:16,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:16,695 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 119 transitions. [2024-09-12 17:59:16,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-09-12 17:59:16,696 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:16,696 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:16,696 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-09-12 17:59:16,697 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:16,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:16,697 INFO L85 PathProgramCache]: Analyzing trace with hash 2125745169, now seen corresponding path program 1 times [2024-09-12 17:59:16,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:16,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416999224] [2024-09-12 17:59:16,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:16,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:16,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:16,751 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:16,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:16,754 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:16,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:16,757 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:16,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:16,759 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 17:59:16,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:16,762 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 17:59:16,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:16,765 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 17:59:16,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:16,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416999224] [2024-09-12 17:59:16,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416999224] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:16,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1902433673] [2024-09-12 17:59:16,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:16,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:16,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:16,768 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 17:59:16,773 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 17:59:16,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:16,811 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 17:59:16,812 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:16,855 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 17:59:16,856 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 17:59:16,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1902433673] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:16,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 17:59:16,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-09-12 17:59:16,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875967004] [2024-09-12 17:59:16,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:16,857 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 17:59:16,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:16,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 17:59:16,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-09-12 17:59:16,859 INFO L87 Difference]: Start difference. First operand 100 states and 119 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 17:59:16,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:16,950 INFO L93 Difference]: Finished difference Result 114 states and 142 transitions. [2024-09-12 17:59:16,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 17:59:16,951 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 39 [2024-09-12 17:59:16,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:16,952 INFO L225 Difference]: With dead ends: 114 [2024-09-12 17:59:16,952 INFO L226 Difference]: Without dead ends: 113 [2024-09-12 17:59:16,953 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-09-12 17:59:16,953 INFO L434 NwaCegarLoop]: 82 mSDtfsCounter, 21 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:16,953 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 296 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:16,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-09-12 17:59:16,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 99. [2024-09-12 17:59:16,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 62 states have (on average 1.2580645161290323) internal successors, (78), 73 states have internal predecessors, (78), 22 states have call successors, (22), 9 states have call predecessors, (22), 8 states have return successors, (18), 16 states have call predecessors, (18), 18 states have call successors, (18) [2024-09-12 17:59:16,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 118 transitions. [2024-09-12 17:59:16,971 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 118 transitions. Word has length 39 [2024-09-12 17:59:16,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:16,971 INFO L474 AbstractCegarLoop]: Abstraction has 99 states and 118 transitions. [2024-09-12 17:59:16,971 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 17:59:16,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:16,972 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 118 transitions. [2024-09-12 17:59:16,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-09-12 17:59:16,972 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:16,973 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:16,989 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 17:59:17,173 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-09-12 17:59:17,173 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:17,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:17,174 INFO L85 PathProgramCache]: Analyzing trace with hash 243543371, now seen corresponding path program 1 times [2024-09-12 17:59:17,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:17,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409445827] [2024-09-12 17:59:17,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:17,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:17,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:17,228 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:17,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:17,231 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:17,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:17,234 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:17,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:17,237 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 17:59:17,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:17,241 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 17:59:17,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:17,245 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 17:59:17,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:17,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409445827] [2024-09-12 17:59:17,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409445827] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:17,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:59:17,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 17:59:17,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831989212] [2024-09-12 17:59:17,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:17,249 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 17:59:17,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:17,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 17:59:17,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-12 17:59:17,249 INFO L87 Difference]: Start difference. First operand 99 states and 118 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 17:59:17,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:17,328 INFO L93 Difference]: Finished difference Result 108 states and 131 transitions. [2024-09-12 17:59:17,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 17:59:17,328 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 40 [2024-09-12 17:59:17,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:17,330 INFO L225 Difference]: With dead ends: 108 [2024-09-12 17:59:17,330 INFO L226 Difference]: Without dead ends: 107 [2024-09-12 17:59:17,330 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-12 17:59:17,332 INFO L434 NwaCegarLoop]: 52 mSDtfsCounter, 7 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:17,332 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 240 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:17,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-09-12 17:59:17,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 101. [2024-09-12 17:59:17,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 64 states have (on average 1.25) internal successors, (80), 74 states have internal predecessors, (80), 22 states have call successors, (22), 9 states have call predecessors, (22), 8 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-09-12 17:59:17,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 120 transitions. [2024-09-12 17:59:17,346 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 120 transitions. Word has length 40 [2024-09-12 17:59:17,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:17,347 INFO L474 AbstractCegarLoop]: Abstraction has 101 states and 120 transitions. [2024-09-12 17:59:17,347 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 17:59:17,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:17,347 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 120 transitions. [2024-09-12 17:59:17,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-09-12 17:59:17,348 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:17,348 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:17,348 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-09-12 17:59:17,348 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:17,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:17,349 INFO L85 PathProgramCache]: Analyzing trace with hash 444408443, now seen corresponding path program 1 times [2024-09-12 17:59:17,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:17,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896083843] [2024-09-12 17:59:17,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:17,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:17,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:17,415 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:17,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:17,418 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:17,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:17,420 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:17,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:17,426 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 17:59:17,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:17,429 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 17:59:17,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:17,432 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 17:59:17,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:17,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896083843] [2024-09-12 17:59:17,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896083843] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:17,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:59:17,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 17:59:17,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925012392] [2024-09-12 17:59:17,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:17,433 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 17:59:17,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:17,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 17:59:17,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-12 17:59:17,435 INFO L87 Difference]: Start difference. First operand 101 states and 120 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 17:59:17,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:17,516 INFO L93 Difference]: Finished difference Result 118 states and 147 transitions. [2024-09-12 17:59:17,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 17:59:17,517 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 40 [2024-09-12 17:59:17,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:17,518 INFO L225 Difference]: With dead ends: 118 [2024-09-12 17:59:17,518 INFO L226 Difference]: Without dead ends: 117 [2024-09-12 17:59:17,518 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-12 17:59:17,519 INFO L434 NwaCegarLoop]: 59 mSDtfsCounter, 7 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 268 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 17:59:17,519 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 268 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:17,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-09-12 17:59:17,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 111. [2024-09-12 17:59:17,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 72 states have (on average 1.2916666666666667) internal successors, (93), 82 states have internal predecessors, (93), 24 states have call successors, (24), 9 states have call predecessors, (24), 8 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-09-12 17:59:17,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 137 transitions. [2024-09-12 17:59:17,540 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 137 transitions. Word has length 40 [2024-09-12 17:59:17,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:17,541 INFO L474 AbstractCegarLoop]: Abstraction has 111 states and 137 transitions. [2024-09-12 17:59:17,541 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 17:59:17,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:17,542 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 137 transitions. [2024-09-12 17:59:17,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-09-12 17:59:17,542 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:17,543 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:17,543 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-09-12 17:59:17,543 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:17,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:17,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1473590883, now seen corresponding path program 1 times [2024-09-12 17:59:17,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:17,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116447085] [2024-09-12 17:59:17,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:17,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:17,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:17,593 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:17,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:17,595 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:17,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:17,598 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:17,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:17,600 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 17:59:17,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:17,603 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 17:59:17,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:17,605 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 17:59:17,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:17,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116447085] [2024-09-12 17:59:17,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116447085] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:17,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341472786] [2024-09-12 17:59:17,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:17,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:17,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:17,608 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 17:59:17,611 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 17:59:17,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:17,651 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 17:59:17,652 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:17,693 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 17:59:17,693 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:17,765 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 17:59:17,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [341472786] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:17,765 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:17,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-09-12 17:59:17,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797465709] [2024-09-12 17:59:17,765 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:17,766 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 17:59:17,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:17,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 17:59:17,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-09-12 17:59:17,767 INFO L87 Difference]: Start difference. First operand 111 states and 137 transitions. Second operand has 12 states, 11 states have (on average 4.0) internal successors, (44), 12 states have internal predecessors, (44), 6 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) [2024-09-12 17:59:17,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:17,889 INFO L93 Difference]: Finished difference Result 152 states and 198 transitions. [2024-09-12 17:59:17,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 17:59:17,890 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.0) internal successors, (44), 12 states have internal predecessors, (44), 6 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) Word has length 40 [2024-09-12 17:59:17,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:17,891 INFO L225 Difference]: With dead ends: 152 [2024-09-12 17:59:17,891 INFO L226 Difference]: Without dead ends: 150 [2024-09-12 17:59:17,892 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-09-12 17:59:17,892 INFO L434 NwaCegarLoop]: 54 mSDtfsCounter, 13 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:17,893 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 419 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:17,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-09-12 17:59:17,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 127. [2024-09-12 17:59:17,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 84 states have (on average 1.2738095238095237) internal successors, (107), 94 states have internal predecessors, (107), 28 states have call successors, (28), 9 states have call predecessors, (28), 8 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 17:59:17,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 159 transitions. [2024-09-12 17:59:17,909 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 159 transitions. Word has length 40 [2024-09-12 17:59:17,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:17,910 INFO L474 AbstractCegarLoop]: Abstraction has 127 states and 159 transitions. [2024-09-12 17:59:17,910 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.0) internal successors, (44), 12 states have internal predecessors, (44), 6 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) [2024-09-12 17:59:17,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:17,911 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 159 transitions. [2024-09-12 17:59:17,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-09-12 17:59:17,911 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:17,911 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:17,928 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 17:59:18,112 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:18,112 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:18,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:18,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1040089978, now seen corresponding path program 1 times [2024-09-12 17:59:18,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:18,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283929428] [2024-09-12 17:59:18,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:18,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:18,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:18,160 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:18,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:18,162 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:18,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:18,167 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:18,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:18,170 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 17:59:18,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:18,172 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 17:59:18,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:18,176 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 17:59:18,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:18,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283929428] [2024-09-12 17:59:18,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283929428] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:18,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:59:18,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 17:59:18,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922261598] [2024-09-12 17:59:18,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:18,177 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 17:59:18,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:18,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 17:59:18,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-09-12 17:59:18,178 INFO L87 Difference]: Start difference. First operand 127 states and 159 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 17:59:18,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:18,243 INFO L93 Difference]: Finished difference Result 130 states and 162 transitions. [2024-09-12 17:59:18,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 17:59:18,244 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 41 [2024-09-12 17:59:18,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:18,245 INFO L225 Difference]: With dead ends: 130 [2024-09-12 17:59:18,245 INFO L226 Difference]: Without dead ends: 129 [2024-09-12 17:59:18,246 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-09-12 17:59:18,246 INFO L434 NwaCegarLoop]: 55 mSDtfsCounter, 4 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:18,246 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 252 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 17:59:18,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-09-12 17:59:18,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 128. [2024-09-12 17:59:18,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 85 states have (on average 1.2705882352941176) internal successors, (108), 95 states have internal predecessors, (108), 28 states have call successors, (28), 9 states have call predecessors, (28), 8 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 17:59:18,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 160 transitions. [2024-09-12 17:59:18,261 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 160 transitions. Word has length 41 [2024-09-12 17:59:18,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:18,263 INFO L474 AbstractCegarLoop]: Abstraction has 128 states and 160 transitions. [2024-09-12 17:59:18,263 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 17:59:18,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:18,263 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 160 transitions. [2024-09-12 17:59:18,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-09-12 17:59:18,264 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:18,264 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:18,264 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-09-12 17:59:18,264 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:18,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:18,265 INFO L85 PathProgramCache]: Analyzing trace with hash 891759983, now seen corresponding path program 1 times [2024-09-12 17:59:18,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:18,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823829063] [2024-09-12 17:59:18,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:18,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:18,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:18,330 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:18,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:18,333 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:18,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:18,336 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:18,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:18,339 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 17:59:18,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:18,342 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 17:59:18,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:18,345 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 17:59:18,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:18,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823829063] [2024-09-12 17:59:18,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823829063] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:18,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:59:18,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 17:59:18,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542902399] [2024-09-12 17:59:18,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:18,346 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 17:59:18,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:18,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 17:59:18,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-09-12 17:59:18,348 INFO L87 Difference]: Start difference. First operand 128 states and 160 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 17:59:18,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:18,417 INFO L93 Difference]: Finished difference Result 132 states and 164 transitions. [2024-09-12 17:59:18,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 17:59:18,418 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 41 [2024-09-12 17:59:18,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:18,419 INFO L225 Difference]: With dead ends: 132 [2024-09-12 17:59:18,419 INFO L226 Difference]: Without dead ends: 131 [2024-09-12 17:59:18,419 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-09-12 17:59:18,420 INFO L434 NwaCegarLoop]: 55 mSDtfsCounter, 5 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:18,420 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 215 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 17:59:18,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-09-12 17:59:18,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2024-09-12 17:59:18,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 88 states have (on average 1.2613636363636365) internal successors, (111), 97 states have internal predecessors, (111), 28 states have call successors, (28), 9 states have call predecessors, (28), 8 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 17:59:18,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 163 transitions. [2024-09-12 17:59:18,436 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 163 transitions. Word has length 41 [2024-09-12 17:59:18,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:18,437 INFO L474 AbstractCegarLoop]: Abstraction has 131 states and 163 transitions. [2024-09-12 17:59:18,437 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 17:59:18,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:18,437 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 163 transitions. [2024-09-12 17:59:18,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-09-12 17:59:18,438 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:18,438 INFO L216 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:18,438 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-09-12 17:59:18,438 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:18,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:18,439 INFO L85 PathProgramCache]: Analyzing trace with hash -622001202, now seen corresponding path program 1 times [2024-09-12 17:59:18,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:18,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046929839] [2024-09-12 17:59:18,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:18,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:18,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:18,499 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:18,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:18,501 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:18,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:18,503 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:18,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:18,506 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 17:59:18,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:18,508 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 17:59:18,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:18,510 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 17:59:18,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:18,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046929839] [2024-09-12 17:59:18,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046929839] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:18,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:59:18,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-09-12 17:59:18,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729678893] [2024-09-12 17:59:18,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:18,511 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 17:59:18,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:18,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 17:59:18,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-09-12 17:59:18,512 INFO L87 Difference]: Start difference. First operand 131 states and 163 transitions. Second operand has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 17:59:18,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:18,610 INFO L93 Difference]: Finished difference Result 137 states and 168 transitions. [2024-09-12 17:59:18,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 17:59:18,611 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 46 [2024-09-12 17:59:18,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:18,612 INFO L225 Difference]: With dead ends: 137 [2024-09-12 17:59:18,612 INFO L226 Difference]: Without dead ends: 129 [2024-09-12 17:59:18,612 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-09-12 17:59:18,613 INFO L434 NwaCegarLoop]: 52 mSDtfsCounter, 31 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:18,613 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 253 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:18,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-09-12 17:59:18,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2024-09-12 17:59:18,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 88 states have (on average 1.2272727272727273) internal successors, (108), 95 states have internal predecessors, (108), 26 states have call successors, (26), 9 states have call predecessors, (26), 8 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 17:59:18,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 158 transitions. [2024-09-12 17:59:18,640 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 158 transitions. Word has length 46 [2024-09-12 17:59:18,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:18,640 INFO L474 AbstractCegarLoop]: Abstraction has 129 states and 158 transitions. [2024-09-12 17:59:18,640 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 17:59:18,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:18,640 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 158 transitions. [2024-09-12 17:59:18,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-09-12 17:59:18,641 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:18,641 INFO L216 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:18,641 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-09-12 17:59:18,642 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:18,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:18,642 INFO L85 PathProgramCache]: Analyzing trace with hash -618187954, now seen corresponding path program 1 times [2024-09-12 17:59:18,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:18,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577639045] [2024-09-12 17:59:18,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:18,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:18,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:18,735 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:18,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:18,737 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:18,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:18,740 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:18,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:18,743 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 17:59:18,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:18,745 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 17:59:18,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:18,748 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 17:59:18,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:18,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577639045] [2024-09-12 17:59:18,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577639045] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:18,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:59:18,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-09-12 17:59:18,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988812782] [2024-09-12 17:59:18,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:18,750 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 17:59:18,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:18,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 17:59:18,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-09-12 17:59:18,752 INFO L87 Difference]: Start difference. First operand 129 states and 158 transitions. Second operand has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 17:59:18,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:18,882 INFO L93 Difference]: Finished difference Result 139 states and 169 transitions. [2024-09-12 17:59:18,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 17:59:18,883 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 46 [2024-09-12 17:59:18,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:18,884 INFO L225 Difference]: With dead ends: 139 [2024-09-12 17:59:18,884 INFO L226 Difference]: Without dead ends: 137 [2024-09-12 17:59:18,885 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-09-12 17:59:18,886 INFO L434 NwaCegarLoop]: 47 mSDtfsCounter, 7 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:18,886 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 310 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:18,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-09-12 17:59:18,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 135. [2024-09-12 17:59:18,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 92 states have (on average 1.2173913043478262) internal successors, (112), 100 states have internal predecessors, (112), 27 states have call successors, (27), 10 states have call predecessors, (27), 9 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-09-12 17:59:18,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 164 transitions. [2024-09-12 17:59:18,900 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 164 transitions. Word has length 46 [2024-09-12 17:59:18,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:18,901 INFO L474 AbstractCegarLoop]: Abstraction has 135 states and 164 transitions. [2024-09-12 17:59:18,901 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 17:59:18,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:18,901 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 164 transitions. [2024-09-12 17:59:18,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-09-12 17:59:18,903 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:18,903 INFO L216 NwaCegarLoop]: trace histogram [5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:18,903 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-09-12 17:59:18,903 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:18,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:18,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1788961327, now seen corresponding path program 1 times [2024-09-12 17:59:18,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:18,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025290377] [2024-09-12 17:59:18,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:18,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:18,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:19,004 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:19,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:19,006 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:19,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:19,009 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:19,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:19,013 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 17:59:19,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:19,018 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 17:59:19,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:19,021 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 17:59:19,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:19,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025290377] [2024-09-12 17:59:19,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025290377] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:19,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [427483553] [2024-09-12 17:59:19,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:19,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:19,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:19,024 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 17:59:19,026 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 17:59:19,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:19,069 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 17:59:19,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:19,137 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 17:59:19,138 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 17:59:19,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [427483553] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:19,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 17:59:19,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 13 [2024-09-12 17:59:19,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411472660] [2024-09-12 17:59:19,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:19,141 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 17:59:19,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:19,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 17:59:19,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-09-12 17:59:19,142 INFO L87 Difference]: Start difference. First operand 135 states and 164 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 17:59:19,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:19,292 INFO L93 Difference]: Finished difference Result 154 states and 190 transitions. [2024-09-12 17:59:19,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 17:59:19,293 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 48 [2024-09-12 17:59:19,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:19,294 INFO L225 Difference]: With dead ends: 154 [2024-09-12 17:59:19,294 INFO L226 Difference]: Without dead ends: 152 [2024-09-12 17:59:19,294 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-09-12 17:59:19,295 INFO L434 NwaCegarLoop]: 70 mSDtfsCounter, 13 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:19,295 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 424 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:19,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-09-12 17:59:19,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 147. [2024-09-12 17:59:19,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 100 states have (on average 1.23) internal successors, (123), 111 states have internal predecessors, (123), 30 states have call successors, (30), 11 states have call predecessors, (30), 10 states have return successors, (28), 24 states have call predecessors, (28), 28 states have call successors, (28) [2024-09-12 17:59:19,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 181 transitions. [2024-09-12 17:59:19,311 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 181 transitions. Word has length 48 [2024-09-12 17:59:19,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:19,312 INFO L474 AbstractCegarLoop]: Abstraction has 147 states and 181 transitions. [2024-09-12 17:59:19,312 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 17:59:19,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:19,312 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 181 transitions. [2024-09-12 17:59:19,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-09-12 17:59:19,313 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:19,313 INFO L216 NwaCegarLoop]: trace histogram [5, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:19,331 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-12 17:59:19,517 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:19,518 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:19,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:19,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1946236707, now seen corresponding path program 1 times [2024-09-12 17:59:19,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:19,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723352067] [2024-09-12 17:59:19,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:19,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:19,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:19,617 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:19,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:19,620 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:19,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:19,622 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:19,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:19,624 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 17:59:19,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:19,626 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 17:59:19,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:19,629 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 17:59:19,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:19,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723352067] [2024-09-12 17:59:19,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723352067] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:19,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:59:19,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-09-12 17:59:19,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832128788] [2024-09-12 17:59:19,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:19,630 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 17:59:19,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:19,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 17:59:19,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-09-12 17:59:19,631 INFO L87 Difference]: Start difference. First operand 147 states and 181 transitions. Second operand has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 8 states have internal predecessors, (28), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 17:59:19,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:19,783 INFO L93 Difference]: Finished difference Result 158 states and 194 transitions. [2024-09-12 17:59:19,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 17:59:19,784 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 8 states have internal predecessors, (28), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 49 [2024-09-12 17:59:19,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:19,785 INFO L225 Difference]: With dead ends: 158 [2024-09-12 17:59:19,785 INFO L226 Difference]: Without dead ends: 156 [2024-09-12 17:59:19,786 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-09-12 17:59:19,786 INFO L434 NwaCegarLoop]: 60 mSDtfsCounter, 12 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:19,787 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 386 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:19,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-09-12 17:59:19,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 153. [2024-09-12 17:59:19,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 103 states have (on average 1.2233009708737863) internal successors, (126), 116 states have internal predecessors, (126), 32 states have call successors, (32), 12 states have call predecessors, (32), 11 states have return successors, (30), 24 states have call predecessors, (30), 30 states have call successors, (30) [2024-09-12 17:59:19,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 188 transitions. [2024-09-12 17:59:19,802 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 188 transitions. Word has length 49 [2024-09-12 17:59:19,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:19,803 INFO L474 AbstractCegarLoop]: Abstraction has 153 states and 188 transitions. [2024-09-12 17:59:19,803 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 8 states have internal predecessors, (28), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 17:59:19,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:19,803 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 188 transitions. [2024-09-12 17:59:19,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-09-12 17:59:19,804 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:19,804 INFO L216 NwaCegarLoop]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:19,805 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-09-12 17:59:19,805 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:19,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:19,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1418718264, now seen corresponding path program 1 times [2024-09-12 17:59:19,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:19,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93751801] [2024-09-12 17:59:19,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:19,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:19,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:19,897 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:19,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:19,900 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:19,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:19,905 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:19,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:19,907 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 17:59:19,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:19,912 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 17:59:19,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:19,928 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-09-12 17:59:19,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:19,932 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 17:59:19,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:19,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93751801] [2024-09-12 17:59:19,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93751801] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:19,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139391091] [2024-09-12 17:59:19,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:19,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:19,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:19,935 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 17:59:19,937 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 17:59:19,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:19,978 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-12 17:59:19,984 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:20,208 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 17:59:20,208 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:20,356 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 17:59:20,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139391091] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:20,357 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:20,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 11] total 22 [2024-09-12 17:59:20,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364951568] [2024-09-12 17:59:20,357 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:20,358 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-09-12 17:59:20,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:20,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-09-12 17:59:20,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2024-09-12 17:59:20,359 INFO L87 Difference]: Start difference. First operand 153 states and 188 transitions. Second operand has 22 states, 22 states have (on average 2.8181818181818183) internal successors, (62), 21 states have internal predecessors, (62), 8 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (15), 7 states have call predecessors, (15), 8 states have call successors, (15) [2024-09-12 17:59:20,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:20,608 INFO L93 Difference]: Finished difference Result 165 states and 203 transitions. [2024-09-12 17:59:20,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-12 17:59:20,608 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.8181818181818183) internal successors, (62), 21 states have internal predecessors, (62), 8 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (15), 7 states have call predecessors, (15), 8 states have call successors, (15) Word has length 51 [2024-09-12 17:59:20,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:20,610 INFO L225 Difference]: With dead ends: 165 [2024-09-12 17:59:20,610 INFO L226 Difference]: Without dead ends: 161 [2024-09-12 17:59:20,611 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 96 SyntacticMatches, 6 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2024-09-12 17:59:20,611 INFO L434 NwaCegarLoop]: 33 mSDtfsCounter, 40 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:20,611 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 261 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:59:20,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-09-12 17:59:20,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 159. [2024-09-12 17:59:20,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 106 states have (on average 1.2075471698113207) internal successors, (128), 119 states have internal predecessors, (128), 34 states have call successors, (34), 13 states have call predecessors, (34), 12 states have return successors, (32), 26 states have call predecessors, (32), 32 states have call successors, (32) [2024-09-12 17:59:20,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 194 transitions. [2024-09-12 17:59:20,628 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 194 transitions. Word has length 51 [2024-09-12 17:59:20,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:20,628 INFO L474 AbstractCegarLoop]: Abstraction has 159 states and 194 transitions. [2024-09-12 17:59:20,628 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.8181818181818183) internal successors, (62), 21 states have internal predecessors, (62), 8 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (15), 7 states have call predecessors, (15), 8 states have call successors, (15) [2024-09-12 17:59:20,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:20,628 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 194 transitions. [2024-09-12 17:59:20,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-09-12 17:59:20,629 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:20,629 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:20,647 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 17:59:20,829 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-09-12 17:59:20,830 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:20,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:20,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1742279800, now seen corresponding path program 1 times [2024-09-12 17:59:20,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:20,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282658631] [2024-09-12 17:59:20,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:20,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:20,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:20,901 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:20,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:20,903 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:20,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:20,905 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:20,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:20,908 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 17:59:20,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:20,910 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 17:59:20,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:20,912 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-09-12 17:59:20,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:20,914 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 17:59:20,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:20,916 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 17:59:20,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:20,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282658631] [2024-09-12 17:59:20,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282658631] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:20,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:59:20,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-09-12 17:59:20,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014533679] [2024-09-12 17:59:20,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:20,918 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 17:59:20,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:20,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 17:59:20,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-09-12 17:59:20,919 INFO L87 Difference]: Start difference. First operand 159 states and 194 transitions. Second operand has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 8 states have internal predecessors, (24), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 17:59:21,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:21,040 INFO L93 Difference]: Finished difference Result 181 states and 228 transitions. [2024-09-12 17:59:21,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 17:59:21,041 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 8 states have internal predecessors, (24), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 54 [2024-09-12 17:59:21,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:21,043 INFO L225 Difference]: With dead ends: 181 [2024-09-12 17:59:21,043 INFO L226 Difference]: Without dead ends: 179 [2024-09-12 17:59:21,043 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-09-12 17:59:21,044 INFO L434 NwaCegarLoop]: 67 mSDtfsCounter, 13 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:21,044 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 407 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:21,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-09-12 17:59:21,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 177. [2024-09-12 17:59:21,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 118 states have (on average 1.228813559322034) internal successors, (145), 132 states have internal predecessors, (145), 40 states have call successors, (40), 13 states have call predecessors, (40), 12 states have return successors, (38), 31 states have call predecessors, (38), 38 states have call successors, (38) [2024-09-12 17:59:21,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 223 transitions. [2024-09-12 17:59:21,063 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 223 transitions. Word has length 54 [2024-09-12 17:59:21,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:21,063 INFO L474 AbstractCegarLoop]: Abstraction has 177 states and 223 transitions. [2024-09-12 17:59:21,063 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 8 states have internal predecessors, (24), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 17:59:21,063 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:21,063 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 223 transitions. [2024-09-12 17:59:21,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-09-12 17:59:21,064 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:21,064 INFO L216 NwaCegarLoop]: trace histogram [6, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:21,064 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-09-12 17:59:21,065 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:21,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:21,065 INFO L85 PathProgramCache]: Analyzing trace with hash 513687705, now seen corresponding path program 1 times [2024-09-12 17:59:21,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:21,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467328108] [2024-09-12 17:59:21,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:21,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:21,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:21,152 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:21,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:21,154 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:21,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:21,156 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:21,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:21,157 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 17:59:21,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:21,159 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 17:59:21,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:21,180 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 17:59:21,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:21,183 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 20 proven. 6 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 17:59:21,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:21,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467328108] [2024-09-12 17:59:21,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467328108] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:21,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197138656] [2024-09-12 17:59:21,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:21,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:21,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:21,192 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 17:59:21,193 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 17:59:21,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:21,235 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-12 17:59:21,237 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:21,445 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 9 proven. 17 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 17:59:21,445 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:21,602 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-09-12 17:59:21,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [197138656] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:21,603 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:21,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 11] total 22 [2024-09-12 17:59:21,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727103231] [2024-09-12 17:59:21,603 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:21,604 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-09-12 17:59:21,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:21,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-09-12 17:59:21,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2024-09-12 17:59:21,605 INFO L87 Difference]: Start difference. First operand 177 states and 223 transitions. Second operand has 22 states, 22 states have (on average 3.0454545454545454) internal successors, (67), 21 states have internal predecessors, (67), 8 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (15), 7 states have call predecessors, (15), 8 states have call successors, (15) [2024-09-12 17:59:21,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:21,889 INFO L93 Difference]: Finished difference Result 201 states and 254 transitions. [2024-09-12 17:59:21,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-12 17:59:21,889 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.0454545454545454) internal successors, (67), 21 states have internal predecessors, (67), 8 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (15), 7 states have call predecessors, (15), 8 states have call successors, (15) Word has length 54 [2024-09-12 17:59:21,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:21,891 INFO L225 Difference]: With dead ends: 201 [2024-09-12 17:59:21,891 INFO L226 Difference]: Without dead ends: 195 [2024-09-12 17:59:21,892 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 102 SyntacticMatches, 6 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2024-09-12 17:59:21,892 INFO L434 NwaCegarLoop]: 34 mSDtfsCounter, 45 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:21,893 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 309 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:59:21,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-09-12 17:59:21,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 184. [2024-09-12 17:59:21,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 124 states have (on average 1.2096774193548387) internal successors, (150), 137 states have internal predecessors, (150), 39 states have call successors, (39), 15 states have call predecessors, (39), 14 states have return successors, (37), 31 states have call predecessors, (37), 37 states have call successors, (37) [2024-09-12 17:59:21,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 226 transitions. [2024-09-12 17:59:21,919 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 226 transitions. Word has length 54 [2024-09-12 17:59:21,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:21,919 INFO L474 AbstractCegarLoop]: Abstraction has 184 states and 226 transitions. [2024-09-12 17:59:21,919 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.0454545454545454) internal successors, (67), 21 states have internal predecessors, (67), 8 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (15), 7 states have call predecessors, (15), 8 states have call successors, (15) [2024-09-12 17:59:21,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:21,920 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 226 transitions. [2024-09-12 17:59:21,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-09-12 17:59:21,920 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:21,920 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:21,939 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 17:59:22,124 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:22,125 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:22,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:22,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1823900910, now seen corresponding path program 1 times [2024-09-12 17:59:22,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:22,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687948576] [2024-09-12 17:59:22,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:22,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:22,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:22,197 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:22,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:22,200 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:22,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:22,202 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:22,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:22,208 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 17:59:22,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:22,209 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 17:59:22,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:22,212 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-09-12 17:59:22,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:22,214 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 17:59:22,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:22,217 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 17:59:22,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:22,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687948576] [2024-09-12 17:59:22,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687948576] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:22,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:59:22,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-09-12 17:59:22,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184698024] [2024-09-12 17:59:22,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:22,219 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 17:59:22,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:22,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 17:59:22,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-09-12 17:59:22,220 INFO L87 Difference]: Start difference. First operand 184 states and 226 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 17:59:22,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:22,307 INFO L93 Difference]: Finished difference Result 189 states and 232 transitions. [2024-09-12 17:59:22,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 17:59:22,308 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 55 [2024-09-12 17:59:22,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:22,309 INFO L225 Difference]: With dead ends: 189 [2024-09-12 17:59:22,309 INFO L226 Difference]: Without dead ends: 188 [2024-09-12 17:59:22,310 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-09-12 17:59:22,310 INFO L434 NwaCegarLoop]: 46 mSDtfsCounter, 9 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:22,311 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 227 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:22,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-09-12 17:59:22,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2024-09-12 17:59:22,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 127 states have (on average 1.204724409448819) internal successors, (153), 139 states have internal predecessors, (153), 40 states have call successors, (40), 15 states have call predecessors, (40), 14 states have return successors, (38), 33 states have call predecessors, (38), 38 states have call successors, (38) [2024-09-12 17:59:22,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 231 transitions. [2024-09-12 17:59:22,337 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 231 transitions. Word has length 55 [2024-09-12 17:59:22,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:22,337 INFO L474 AbstractCegarLoop]: Abstraction has 188 states and 231 transitions. [2024-09-12 17:59:22,337 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 17:59:22,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:22,338 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 231 transitions. [2024-09-12 17:59:22,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-09-12 17:59:22,338 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:22,338 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:22,339 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-09-12 17:59:22,339 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:22,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:22,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1238362579, now seen corresponding path program 1 times [2024-09-12 17:59:22,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:22,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457123041] [2024-09-12 17:59:22,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:22,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:22,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:22,410 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:22,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:22,414 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:22,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:22,417 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:22,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:22,419 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 17:59:22,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:22,422 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 17:59:22,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:22,424 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-09-12 17:59:22,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:22,426 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 17:59:22,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:22,428 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 17:59:22,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:22,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457123041] [2024-09-12 17:59:22,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457123041] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:22,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608594645] [2024-09-12 17:59:22,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:22,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:22,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:22,431 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 17:59:22,437 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 17:59:22,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:22,478 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 17:59:22,479 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:22,530 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 17:59:22,530 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 17:59:22,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1608594645] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:22,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 17:59:22,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 9 [2024-09-12 17:59:22,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787532632] [2024-09-12 17:59:22,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:22,531 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 17:59:22,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:22,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 17:59:22,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-09-12 17:59:22,533 INFO L87 Difference]: Start difference. First operand 188 states and 231 transitions. Second operand has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 17:59:22,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:22,644 INFO L93 Difference]: Finished difference Result 196 states and 242 transitions. [2024-09-12 17:59:22,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 17:59:22,645 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 56 [2024-09-12 17:59:22,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:22,646 INFO L225 Difference]: With dead ends: 196 [2024-09-12 17:59:22,646 INFO L226 Difference]: Without dead ends: 195 [2024-09-12 17:59:22,647 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-09-12 17:59:22,647 INFO L434 NwaCegarLoop]: 76 mSDtfsCounter, 11 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:22,647 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 390 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:22,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-09-12 17:59:22,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 190. [2024-09-12 17:59:22,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 129 states have (on average 1.2015503875968991) internal successors, (155), 140 states have internal predecessors, (155), 40 states have call successors, (40), 15 states have call predecessors, (40), 14 states have return successors, (38), 34 states have call predecessors, (38), 38 states have call successors, (38) [2024-09-12 17:59:22,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 233 transitions. [2024-09-12 17:59:22,668 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 233 transitions. Word has length 56 [2024-09-12 17:59:22,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:22,669 INFO L474 AbstractCegarLoop]: Abstraction has 190 states and 233 transitions. [2024-09-12 17:59:22,669 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 17:59:22,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:22,669 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 233 transitions. [2024-09-12 17:59:22,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-09-12 17:59:22,670 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:22,670 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:22,688 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 17:59:22,870 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:22,871 INFO L399 AbstractCegarLoop]: === Iteration 27 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:22,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:22,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1439227651, now seen corresponding path program 1 times [2024-09-12 17:59:22,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:22,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607162554] [2024-09-12 17:59:22,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:22,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:22,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:22,936 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:22,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:22,938 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:22,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:22,940 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:22,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:22,942 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 17:59:22,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:22,944 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 17:59:22,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:22,945 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-09-12 17:59:22,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:22,947 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 17:59:22,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:22,950 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 17:59:22,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:22,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607162554] [2024-09-12 17:59:22,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607162554] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:22,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [840338379] [2024-09-12 17:59:22,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:22,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:22,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:22,952 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 17:59:22,954 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 17:59:22,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:22,995 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 17:59:22,998 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:23,043 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 17:59:23,044 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 17:59:23,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [840338379] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:23,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 17:59:23,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 9 [2024-09-12 17:59:23,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691428687] [2024-09-12 17:59:23,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:23,045 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 17:59:23,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:23,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 17:59:23,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-09-12 17:59:23,046 INFO L87 Difference]: Start difference. First operand 190 states and 233 transitions. Second operand has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 17:59:23,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:23,155 INFO L93 Difference]: Finished difference Result 205 states and 256 transitions. [2024-09-12 17:59:23,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 17:59:23,156 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 56 [2024-09-12 17:59:23,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:23,158 INFO L225 Difference]: With dead ends: 205 [2024-09-12 17:59:23,158 INFO L226 Difference]: Without dead ends: 204 [2024-09-12 17:59:23,159 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-09-12 17:59:23,159 INFO L434 NwaCegarLoop]: 78 mSDtfsCounter, 7 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:23,160 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 405 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:23,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2024-09-12 17:59:23,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 200. [2024-09-12 17:59:23,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 137 states have (on average 1.218978102189781) internal successors, (167), 148 states have internal predecessors, (167), 42 states have call successors, (42), 15 states have call predecessors, (42), 14 states have return successors, (40), 36 states have call predecessors, (40), 40 states have call successors, (40) [2024-09-12 17:59:23,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 249 transitions. [2024-09-12 17:59:23,183 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 249 transitions. Word has length 56 [2024-09-12 17:59:23,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:23,184 INFO L474 AbstractCegarLoop]: Abstraction has 200 states and 249 transitions. [2024-09-12 17:59:23,184 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 17:59:23,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:23,184 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 249 transitions. [2024-09-12 17:59:23,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-09-12 17:59:23,185 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:23,185 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:23,201 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:23,386 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-09-12 17:59:23,386 INFO L399 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:23,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:23,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1405615009, now seen corresponding path program 1 times [2024-09-12 17:59:23,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:23,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921185611] [2024-09-12 17:59:23,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:23,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:23,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:23,449 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:23,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:23,452 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:23,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:23,454 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:23,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:23,456 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 17:59:23,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:23,457 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 17:59:23,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:23,459 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 17:59:23,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:23,461 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 17:59:23,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:23,463 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 17:59:23,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:23,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921185611] [2024-09-12 17:59:23,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921185611] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:23,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1213938479] [2024-09-12 17:59:23,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:23,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:23,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:23,466 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 17:59:23,468 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 17:59:23,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:23,514 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 17:59:23,516 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:23,558 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 17:59:23,558 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:23,652 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 17:59:23,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1213938479] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:23,653 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:23,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-09-12 17:59:23,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845570708] [2024-09-12 17:59:23,653 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:23,654 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 17:59:23,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:23,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 17:59:23,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2024-09-12 17:59:23,655 INFO L87 Difference]: Start difference. First operand 200 states and 249 transitions. Second operand has 16 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 16 states have internal predecessors, (56), 8 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2024-09-12 17:59:23,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:23,781 INFO L93 Difference]: Finished difference Result 242 states and 313 transitions. [2024-09-12 17:59:23,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 17:59:23,781 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 16 states have internal predecessors, (56), 8 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) Word has length 56 [2024-09-12 17:59:23,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:23,783 INFO L225 Difference]: With dead ends: 242 [2024-09-12 17:59:23,783 INFO L226 Difference]: Without dead ends: 241 [2024-09-12 17:59:23,784 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2024-09-12 17:59:23,784 INFO L434 NwaCegarLoop]: 54 mSDtfsCounter, 13 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:23,785 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 328 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:23,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2024-09-12 17:59:23,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 229. [2024-09-12 17:59:23,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 158 states have (on average 1.2088607594936709) internal successors, (191), 169 states have internal predecessors, (191), 50 states have call successors, (50), 15 states have call predecessors, (50), 14 states have return successors, (48), 44 states have call predecessors, (48), 48 states have call successors, (48) [2024-09-12 17:59:23,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 289 transitions. [2024-09-12 17:59:23,812 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 289 transitions. Word has length 56 [2024-09-12 17:59:23,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:23,812 INFO L474 AbstractCegarLoop]: Abstraction has 229 states and 289 transitions. [2024-09-12 17:59:23,812 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 16 states have internal predecessors, (56), 8 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2024-09-12 17:59:23,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:23,813 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 289 transitions. [2024-09-12 17:59:23,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-09-12 17:59:23,814 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:23,814 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:23,831 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 17:59:24,014 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-09-12 17:59:24,015 INFO L399 AbstractCegarLoop]: === Iteration 29 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:24,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:24,015 INFO L85 PathProgramCache]: Analyzing trace with hash 306858207, now seen corresponding path program 1 times [2024-09-12 17:59:24,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:24,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294579564] [2024-09-12 17:59:24,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:24,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:24,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:24,077 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:24,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:24,080 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:24,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:24,082 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:24,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:24,083 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 17:59:24,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:24,085 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 17:59:24,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:24,087 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 17:59:24,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:24,089 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-09-12 17:59:24,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:24,090 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 17:59:24,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:24,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294579564] [2024-09-12 17:59:24,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294579564] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:24,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:59:24,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-09-12 17:59:24,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989858928] [2024-09-12 17:59:24,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:24,092 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 17:59:24,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:24,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 17:59:24,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-09-12 17:59:24,093 INFO L87 Difference]: Start difference. First operand 229 states and 289 transitions. Second operand has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 17:59:24,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:24,229 INFO L93 Difference]: Finished difference Result 250 states and 321 transitions. [2024-09-12 17:59:24,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 17:59:24,230 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 57 [2024-09-12 17:59:24,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:24,232 INFO L225 Difference]: With dead ends: 250 [2024-09-12 17:59:24,232 INFO L226 Difference]: Without dead ends: 248 [2024-09-12 17:59:24,232 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-09-12 17:59:24,233 INFO L434 NwaCegarLoop]: 65 mSDtfsCounter, 12 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:24,233 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 356 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:24,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-09-12 17:59:24,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 229. [2024-09-12 17:59:24,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 158 states have (on average 1.2088607594936709) internal successors, (191), 169 states have internal predecessors, (191), 50 states have call successors, (50), 15 states have call predecessors, (50), 14 states have return successors, (48), 44 states have call predecessors, (48), 48 states have call successors, (48) [2024-09-12 17:59:24,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 289 transitions. [2024-09-12 17:59:24,276 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 289 transitions. Word has length 57 [2024-09-12 17:59:24,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:24,276 INFO L474 AbstractCegarLoop]: Abstraction has 229 states and 289 transitions. [2024-09-12 17:59:24,276 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 17:59:24,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:24,277 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 289 transitions. [2024-09-12 17:59:24,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-09-12 17:59:24,278 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:24,278 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:24,278 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-09-12 17:59:24,279 INFO L399 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:24,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:24,279 INFO L85 PathProgramCache]: Analyzing trace with hash -265465602, now seen corresponding path program 1 times [2024-09-12 17:59:24,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:24,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825388624] [2024-09-12 17:59:24,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:24,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:24,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:24,342 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:24,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:24,344 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:24,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:24,350 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:24,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:24,352 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 17:59:24,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:24,358 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 17:59:24,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:24,360 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-09-12 17:59:24,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:24,366 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 17:59:24,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:24,368 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 17:59:24,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:24,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825388624] [2024-09-12 17:59:24,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825388624] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:24,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2138901742] [2024-09-12 17:59:24,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:24,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:24,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:24,371 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 17:59:24,373 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 17:59:24,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:24,419 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 17:59:24,421 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:24,472 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 17:59:24,472 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:24,574 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 17:59:24,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2138901742] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:24,574 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:24,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-09-12 17:59:24,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440178066] [2024-09-12 17:59:24,575 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:24,575 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 17:59:24,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:24,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 17:59:24,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2024-09-12 17:59:24,576 INFO L87 Difference]: Start difference. First operand 229 states and 289 transitions. Second operand has 16 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 16 states have internal predecessors, (58), 8 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2024-09-12 17:59:24,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:24,725 INFO L93 Difference]: Finished difference Result 265 states and 342 transitions. [2024-09-12 17:59:24,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 17:59:24,726 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 16 states have internal predecessors, (58), 8 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) Word has length 57 [2024-09-12 17:59:24,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:24,728 INFO L225 Difference]: With dead ends: 265 [2024-09-12 17:59:24,728 INFO L226 Difference]: Without dead ends: 264 [2024-09-12 17:59:24,729 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2024-09-12 17:59:24,729 INFO L434 NwaCegarLoop]: 46 mSDtfsCounter, 13 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:24,730 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 348 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:24,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-09-12 17:59:24,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 238. [2024-09-12 17:59:24,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 165 states have (on average 1.2121212121212122) internal successors, (200), 176 states have internal predecessors, (200), 52 states have call successors, (52), 15 states have call predecessors, (52), 14 states have return successors, (50), 46 states have call predecessors, (50), 50 states have call successors, (50) [2024-09-12 17:59:24,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 302 transitions. [2024-09-12 17:59:24,766 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 302 transitions. Word has length 57 [2024-09-12 17:59:24,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:24,766 INFO L474 AbstractCegarLoop]: Abstraction has 238 states and 302 transitions. [2024-09-12 17:59:24,766 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 16 states have internal predecessors, (58), 8 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2024-09-12 17:59:24,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:24,767 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 302 transitions. [2024-09-12 17:59:24,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-09-12 17:59:24,767 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:24,768 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:24,784 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 17:59:24,968 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:24,968 INFO L399 AbstractCegarLoop]: === Iteration 31 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:24,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:24,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1666384359, now seen corresponding path program 1 times [2024-09-12 17:59:24,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:24,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669673421] [2024-09-12 17:59:24,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:24,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:24,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:25,028 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:25,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:25,031 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:25,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:25,033 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:25,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:25,035 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 17:59:25,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:25,037 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 17:59:25,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:25,038 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-09-12 17:59:25,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:25,040 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 17:59:25,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:25,042 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 17:59:25,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:25,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669673421] [2024-09-12 17:59:25,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669673421] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:25,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224767233] [2024-09-12 17:59:25,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:25,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:25,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:25,045 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 17:59:25,046 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 17:59:25,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:25,090 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 17:59:25,091 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:25,136 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 17:59:25,137 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:25,238 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 17:59:25,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224767233] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:25,238 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:25,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-09-12 17:59:25,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035180568] [2024-09-12 17:59:25,239 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:25,239 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 17:59:25,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:25,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 17:59:25,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2024-09-12 17:59:25,240 INFO L87 Difference]: Start difference. First operand 238 states and 302 transitions. Second operand has 16 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 16 states have internal predecessors, (58), 8 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2024-09-12 17:59:25,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:25,396 INFO L93 Difference]: Finished difference Result 288 states and 377 transitions. [2024-09-12 17:59:25,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 17:59:25,397 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 16 states have internal predecessors, (58), 8 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) Word has length 57 [2024-09-12 17:59:25,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:25,399 INFO L225 Difference]: With dead ends: 288 [2024-09-12 17:59:25,399 INFO L226 Difference]: Without dead ends: 287 [2024-09-12 17:59:25,399 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2024-09-12 17:59:25,400 INFO L434 NwaCegarLoop]: 49 mSDtfsCounter, 29 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:25,400 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 413 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:25,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2024-09-12 17:59:25,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 276. [2024-09-12 17:59:25,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 193 states have (on average 1.217616580310881) internal successors, (235), 205 states have internal predecessors, (235), 62 states have call successors, (62), 15 states have call predecessors, (62), 14 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2024-09-12 17:59:25,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 357 transitions. [2024-09-12 17:59:25,440 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 357 transitions. Word has length 57 [2024-09-12 17:59:25,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:25,440 INFO L474 AbstractCegarLoop]: Abstraction has 276 states and 357 transitions. [2024-09-12 17:59:25,441 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 16 states have internal predecessors, (58), 8 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2024-09-12 17:59:25,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:25,441 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 357 transitions. [2024-09-12 17:59:25,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-09-12 17:59:25,442 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:25,442 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:25,458 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 17:59:25,646 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-09-12 17:59:25,647 INFO L399 AbstractCegarLoop]: === Iteration 32 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:25,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:25,647 INFO L85 PathProgramCache]: Analyzing trace with hash 922669938, now seen corresponding path program 1 times [2024-09-12 17:59:25,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:25,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508703580] [2024-09-12 17:59:25,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:25,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:25,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:25,704 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:25,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:25,706 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:25,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:25,708 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:25,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:25,709 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 17:59:25,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:25,711 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 17:59:25,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:25,713 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 17:59:25,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:25,714 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-09-12 17:59:25,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:25,716 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 17:59:25,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:25,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508703580] [2024-09-12 17:59:25,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508703580] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:25,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [129992882] [2024-09-12 17:59:25,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:25,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:25,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:25,719 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 17:59:25,720 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 17:59:25,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:25,761 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 17:59:25,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:25,804 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 17:59:25,804 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:25,896 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 17:59:25,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [129992882] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:25,896 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:25,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-09-12 17:59:25,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116399461] [2024-09-12 17:59:25,896 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:25,897 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 17:59:25,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:25,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 17:59:25,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2024-09-12 17:59:25,898 INFO L87 Difference]: Start difference. First operand 276 states and 357 transitions. Second operand has 16 states, 15 states have (on average 4.0) internal successors, (60), 16 states have internal predecessors, (60), 8 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2024-09-12 17:59:26,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:26,055 INFO L93 Difference]: Finished difference Result 312 states and 410 transitions. [2024-09-12 17:59:26,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 17:59:26,056 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.0) internal successors, (60), 16 states have internal predecessors, (60), 8 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) Word has length 58 [2024-09-12 17:59:26,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:26,058 INFO L225 Difference]: With dead ends: 312 [2024-09-12 17:59:26,058 INFO L226 Difference]: Without dead ends: 310 [2024-09-12 17:59:26,058 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2024-09-12 17:59:26,059 INFO L434 NwaCegarLoop]: 46 mSDtfsCounter, 18 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:26,059 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 421 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:26,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2024-09-12 17:59:26,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 297. [2024-09-12 17:59:26,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 208 states have (on average 1.2211538461538463) internal successors, (254), 222 states have internal predecessors, (254), 68 states have call successors, (68), 15 states have call predecessors, (68), 14 states have return successors, (66), 59 states have call predecessors, (66), 66 states have call successors, (66) [2024-09-12 17:59:26,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 388 transitions. [2024-09-12 17:59:26,100 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 388 transitions. Word has length 58 [2024-09-12 17:59:26,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:26,100 INFO L474 AbstractCegarLoop]: Abstraction has 297 states and 388 transitions. [2024-09-12 17:59:26,100 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.0) internal successors, (60), 16 states have internal predecessors, (60), 8 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2024-09-12 17:59:26,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:26,101 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 388 transitions. [2024-09-12 17:59:26,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-09-12 17:59:26,101 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:26,101 INFO L216 NwaCegarLoop]: trace histogram [7, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:26,117 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-09-12 17:59:26,302 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:26,302 INFO L399 AbstractCegarLoop]: === Iteration 33 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:26,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:26,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1610967510, now seen corresponding path program 1 times [2024-09-12 17:59:26,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:26,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468499089] [2024-09-12 17:59:26,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:26,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:26,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:26,411 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:26,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:26,412 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:26,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:26,414 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:26,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:26,415 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 17:59:26,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:26,417 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 17:59:26,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:26,418 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-09-12 17:59:26,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:26,420 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 17:59:26,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:26,422 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 17:59:26,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:26,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468499089] [2024-09-12 17:59:26,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468499089] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:26,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [216375855] [2024-09-12 17:59:26,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:26,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:26,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:26,424 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 17:59:26,426 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 17:59:26,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:26,465 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 17:59:26,467 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:26,542 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 17:59:26,542 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 17:59:26,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [216375855] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:26,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 17:59:26,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11] total 15 [2024-09-12 17:59:26,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323300746] [2024-09-12 17:59:26,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:26,543 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 17:59:26,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:26,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 17:59:26,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-09-12 17:59:26,544 INFO L87 Difference]: Start difference. First operand 297 states and 388 transitions. Second operand has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 10 states have internal predecessors, (31), 5 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 17:59:26,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:26,733 INFO L93 Difference]: Finished difference Result 310 states and 403 transitions. [2024-09-12 17:59:26,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 17:59:26,734 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 10 states have internal predecessors, (31), 5 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 62 [2024-09-12 17:59:26,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:26,735 INFO L225 Difference]: With dead ends: 310 [2024-09-12 17:59:26,735 INFO L226 Difference]: Without dead ends: 308 [2024-09-12 17:59:26,736 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2024-09-12 17:59:26,736 INFO L434 NwaCegarLoop]: 72 mSDtfsCounter, 14 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:26,736 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 463 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:26,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2024-09-12 17:59:26,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 304. [2024-09-12 17:59:26,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 213 states have (on average 1.2206572769953052) internal successors, (260), 228 states have internal predecessors, (260), 69 states have call successors, (69), 16 states have call predecessors, (69), 15 states have return successors, (67), 59 states have call predecessors, (67), 67 states have call successors, (67) [2024-09-12 17:59:26,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 396 transitions. [2024-09-12 17:59:26,774 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 396 transitions. Word has length 62 [2024-09-12 17:59:26,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:26,774 INFO L474 AbstractCegarLoop]: Abstraction has 304 states and 396 transitions. [2024-09-12 17:59:26,775 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 10 states have internal predecessors, (31), 5 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 17:59:26,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:26,775 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 396 transitions. [2024-09-12 17:59:26,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-09-12 17:59:26,776 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:26,776 INFO L216 NwaCegarLoop]: trace histogram [7, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:26,793 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-09-12 17:59:26,976 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-09-12 17:59:26,976 INFO L399 AbstractCegarLoop]: === Iteration 34 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:26,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:26,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1525234816, now seen corresponding path program 1 times [2024-09-12 17:59:26,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:26,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154791058] [2024-09-12 17:59:26,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:26,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:26,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:27,075 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:27,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:27,077 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:27,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:27,079 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:27,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:27,081 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 17:59:27,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:27,082 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 17:59:27,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:27,084 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-09-12 17:59:27,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:27,086 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 17:59:27,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:27,087 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 17:59:27,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:27,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154791058] [2024-09-12 17:59:27,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154791058] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:27,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:59:27,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-09-12 17:59:27,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564770308] [2024-09-12 17:59:27,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:27,088 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 17:59:27,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:27,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 17:59:27,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-09-12 17:59:27,089 INFO L87 Difference]: Start difference. First operand 304 states and 396 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 5 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 17:59:27,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:27,298 INFO L93 Difference]: Finished difference Result 343 states and 450 transitions. [2024-09-12 17:59:27,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 17:59:27,298 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 5 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 63 [2024-09-12 17:59:27,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:27,300 INFO L225 Difference]: With dead ends: 343 [2024-09-12 17:59:27,300 INFO L226 Difference]: Without dead ends: 340 [2024-09-12 17:59:27,301 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-09-12 17:59:27,301 INFO L434 NwaCegarLoop]: 56 mSDtfsCounter, 11 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:27,301 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 453 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:59:27,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-09-12 17:59:27,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 339. [2024-09-12 17:59:27,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 238 states have (on average 1.2226890756302522) internal successors, (291), 253 states have internal predecessors, (291), 78 states have call successors, (78), 17 states have call predecessors, (78), 16 states have return successors, (76), 68 states have call predecessors, (76), 76 states have call successors, (76) [2024-09-12 17:59:27,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 445 transitions. [2024-09-12 17:59:27,344 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 445 transitions. Word has length 63 [2024-09-12 17:59:27,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:27,344 INFO L474 AbstractCegarLoop]: Abstraction has 339 states and 445 transitions. [2024-09-12 17:59:27,344 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 5 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 17:59:27,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:27,345 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 445 transitions. [2024-09-12 17:59:27,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-09-12 17:59:27,345 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:27,346 INFO L216 NwaCegarLoop]: trace histogram [7, 6, 6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:27,346 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-09-12 17:59:27,346 INFO L399 AbstractCegarLoop]: === Iteration 35 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:27,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:27,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1338462178, now seen corresponding path program 1 times [2024-09-12 17:59:27,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:27,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091149670] [2024-09-12 17:59:27,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:27,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:27,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:27,446 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:27,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:27,448 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:27,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:27,450 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:27,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:27,452 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 17:59:27,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:27,454 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 17:59:27,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:27,456 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 17:59:27,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:27,457 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-09-12 17:59:27,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:27,460 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 17:59:27,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:27,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091149670] [2024-09-12 17:59:27,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091149670] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:27,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:59:27,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-09-12 17:59:27,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259485032] [2024-09-12 17:59:27,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:27,461 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 17:59:27,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:27,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 17:59:27,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-09-12 17:59:27,462 INFO L87 Difference]: Start difference. First operand 339 states and 445 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 5 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 17:59:27,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:27,681 INFO L93 Difference]: Finished difference Result 347 states and 452 transitions. [2024-09-12 17:59:27,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 17:59:27,681 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 5 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 63 [2024-09-12 17:59:27,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:27,683 INFO L225 Difference]: With dead ends: 347 [2024-09-12 17:59:27,683 INFO L226 Difference]: Without dead ends: 344 [2024-09-12 17:59:27,684 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-09-12 17:59:27,684 INFO L434 NwaCegarLoop]: 60 mSDtfsCounter, 12 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:27,685 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 447 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:59:27,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-09-12 17:59:27,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 343. [2024-09-12 17:59:27,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 241 states have (on average 1.2157676348547717) internal successors, (293), 256 states have internal predecessors, (293), 78 states have call successors, (78), 18 states have call predecessors, (78), 17 states have return successors, (76), 68 states have call predecessors, (76), 76 states have call successors, (76) [2024-09-12 17:59:27,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 447 transitions. [2024-09-12 17:59:27,725 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 447 transitions. Word has length 63 [2024-09-12 17:59:27,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:27,726 INFO L474 AbstractCegarLoop]: Abstraction has 343 states and 447 transitions. [2024-09-12 17:59:27,726 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 5 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 17:59:27,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:27,726 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 447 transitions. [2024-09-12 17:59:27,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-09-12 17:59:27,727 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:27,727 INFO L216 NwaCegarLoop]: trace histogram [7, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:27,727 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-09-12 17:59:27,727 INFO L399 AbstractCegarLoop]: === Iteration 36 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:27,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:27,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1960139435, now seen corresponding path program 1 times [2024-09-12 17:59:27,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:27,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489028504] [2024-09-12 17:59:27,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:27,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:27,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:27,830 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:27,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:27,833 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:27,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:27,838 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:27,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:27,840 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 17:59:27,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:27,842 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 17:59:27,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:27,844 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-09-12 17:59:27,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:27,846 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 17:59:27,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:27,848 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 17:59:27,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:27,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489028504] [2024-09-12 17:59:27,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489028504] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:27,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95089922] [2024-09-12 17:59:27,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:27,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:27,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:27,852 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 17:59:27,853 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 17:59:27,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:27,899 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 17:59:27,900 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:27,986 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 17:59:27,987 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 17:59:27,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [95089922] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:27,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 17:59:27,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11] total 15 [2024-09-12 17:59:27,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569371256] [2024-09-12 17:59:27,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:27,987 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 17:59:27,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:27,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 17:59:27,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-09-12 17:59:27,988 INFO L87 Difference]: Start difference. First operand 343 states and 447 transitions. Second operand has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 10 states have internal predecessors, (34), 5 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 17:59:28,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:28,167 INFO L93 Difference]: Finished difference Result 355 states and 460 transitions. [2024-09-12 17:59:28,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 17:59:28,167 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 10 states have internal predecessors, (34), 5 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 65 [2024-09-12 17:59:28,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:28,169 INFO L225 Difference]: With dead ends: 355 [2024-09-12 17:59:28,169 INFO L226 Difference]: Without dead ends: 352 [2024-09-12 17:59:28,170 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2024-09-12 17:59:28,170 INFO L434 NwaCegarLoop]: 81 mSDtfsCounter, 19 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:28,170 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 525 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:28,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2024-09-12 17:59:28,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 348. [2024-09-12 17:59:28,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 244 states have (on average 1.2049180327868851) internal successors, (294), 260 states have internal predecessors, (294), 79 states have call successors, (79), 19 states have call predecessors, (79), 18 states have return successors, (77), 68 states have call predecessors, (77), 77 states have call successors, (77) [2024-09-12 17:59:28,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 450 transitions. [2024-09-12 17:59:28,212 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 450 transitions. Word has length 65 [2024-09-12 17:59:28,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:28,212 INFO L474 AbstractCegarLoop]: Abstraction has 348 states and 450 transitions. [2024-09-12 17:59:28,212 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 10 states have internal predecessors, (34), 5 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 17:59:28,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:28,213 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 450 transitions. [2024-09-12 17:59:28,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-09-12 17:59:28,214 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:28,214 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:28,231 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-09-12 17:59:28,414 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-09-12 17:59:28,415 INFO L399 AbstractCegarLoop]: === Iteration 37 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:28,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:28,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1652310784, now seen corresponding path program 1 times [2024-09-12 17:59:28,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:28,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898120524] [2024-09-12 17:59:28,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:28,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:28,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:28,502 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:28,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:28,503 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:28,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:28,505 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:28,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:28,507 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 17:59:28,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:28,508 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 17:59:28,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:28,510 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-09-12 17:59:28,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:28,512 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 17:59:28,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:28,513 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 17:59:28,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:28,515 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 17:59:28,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:28,518 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 17:59:28,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:28,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898120524] [2024-09-12 17:59:28,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898120524] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:28,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309220693] [2024-09-12 17:59:28,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:28,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:28,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:28,520 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 17:59:28,521 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 17:59:28,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:28,565 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 17:59:28,566 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:28,631 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 17:59:28,631 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 17:59:28,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [309220693] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:28,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 17:59:28,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 11 [2024-09-12 17:59:28,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519151288] [2024-09-12 17:59:28,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:28,632 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 17:59:28,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:28,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 17:59:28,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-09-12 17:59:28,633 INFO L87 Difference]: Start difference. First operand 348 states and 450 transitions. Second operand has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 10 states have internal predecessors, (30), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-09-12 17:59:28,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:28,794 INFO L93 Difference]: Finished difference Result 371 states and 484 transitions. [2024-09-12 17:59:28,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 17:59:28,794 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 10 states have internal predecessors, (30), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 70 [2024-09-12 17:59:28,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:28,797 INFO L225 Difference]: With dead ends: 371 [2024-09-12 17:59:28,797 INFO L226 Difference]: Without dead ends: 369 [2024-09-12 17:59:28,797 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-09-12 17:59:28,798 INFO L434 NwaCegarLoop]: 91 mSDtfsCounter, 15 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:28,798 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 556 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:28,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2024-09-12 17:59:28,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 366. [2024-09-12 17:59:28,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 256 states have (on average 1.21484375) internal successors, (311), 273 states have internal predecessors, (311), 85 states have call successors, (85), 19 states have call predecessors, (85), 18 states have return successors, (83), 73 states have call predecessors, (83), 83 states have call successors, (83) [2024-09-12 17:59:28,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 479 transitions. [2024-09-12 17:59:28,853 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 479 transitions. Word has length 70 [2024-09-12 17:59:28,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:28,854 INFO L474 AbstractCegarLoop]: Abstraction has 366 states and 479 transitions. [2024-09-12 17:59:28,854 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 10 states have internal predecessors, (30), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-09-12 17:59:28,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:28,854 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 479 transitions. [2024-09-12 17:59:28,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-09-12 17:59:28,855 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:28,855 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:28,872 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-09-12 17:59:29,055 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:29,056 INFO L399 AbstractCegarLoop]: === Iteration 38 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:29,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:29,056 INFO L85 PathProgramCache]: Analyzing trace with hash -317973110, now seen corresponding path program 1 times [2024-09-12 17:59:29,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:29,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222672473] [2024-09-12 17:59:29,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:29,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:29,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:29,136 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:29,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:29,138 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:29,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:29,140 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:29,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:29,141 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 17:59:29,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:29,143 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 17:59:29,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:29,145 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-09-12 17:59:29,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:29,146 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 17:59:29,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:29,148 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 17:59:29,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:29,150 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 17:59:29,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:29,152 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 17:59:29,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:29,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222672473] [2024-09-12 17:59:29,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222672473] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:29,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537745667] [2024-09-12 17:59:29,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:29,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:29,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:29,154 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 17:59:29,156 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 17:59:29,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:29,201 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 17:59:29,203 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:29,258 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 17:59:29,258 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:29,408 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 17:59:29,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [537745667] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:29,409 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:29,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2024-09-12 17:59:29,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67461344] [2024-09-12 17:59:29,409 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:29,409 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-09-12 17:59:29,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:29,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-09-12 17:59:29,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2024-09-12 17:59:29,410 INFO L87 Difference]: Start difference. First operand 366 states and 479 transitions. Second operand has 20 states, 19 states have (on average 3.473684210526316) internal successors, (66), 20 states have internal predecessors, (66), 10 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 10 states have call predecessors, (19), 10 states have call successors, (19) [2024-09-12 17:59:29,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:29,626 INFO L93 Difference]: Finished difference Result 423 states and 564 transitions. [2024-09-12 17:59:29,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-12 17:59:29,626 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 3.473684210526316) internal successors, (66), 20 states have internal predecessors, (66), 10 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 10 states have call predecessors, (19), 10 states have call successors, (19) Word has length 71 [2024-09-12 17:59:29,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:29,629 INFO L225 Difference]: With dead ends: 423 [2024-09-12 17:59:29,629 INFO L226 Difference]: Without dead ends: 421 [2024-09-12 17:59:29,629 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2024-09-12 17:59:29,630 INFO L434 NwaCegarLoop]: 42 mSDtfsCounter, 36 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:29,630 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 398 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:59:29,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2024-09-12 17:59:29,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 417. [2024-09-12 17:59:29,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 288 states have (on average 1.2083333333333333) internal successors, (348), 308 states have internal predecessors, (348), 104 states have call successors, (104), 19 states have call predecessors, (104), 18 states have return successors, (102), 89 states have call predecessors, (102), 102 states have call successors, (102) [2024-09-12 17:59:29,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 554 transitions. [2024-09-12 17:59:29,685 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 554 transitions. Word has length 71 [2024-09-12 17:59:29,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:29,685 INFO L474 AbstractCegarLoop]: Abstraction has 417 states and 554 transitions. [2024-09-12 17:59:29,685 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.473684210526316) internal successors, (66), 20 states have internal predecessors, (66), 10 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 10 states have call predecessors, (19), 10 states have call successors, (19) [2024-09-12 17:59:29,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:29,686 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 554 transitions. [2024-09-12 17:59:29,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-09-12 17:59:29,687 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:29,687 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:29,703 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-09-12 17:59:29,887 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-09-12 17:59:29,888 INFO L399 AbstractCegarLoop]: === Iteration 39 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:29,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:29,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1907531635, now seen corresponding path program 2 times [2024-09-12 17:59:29,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:29,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955160139] [2024-09-12 17:59:29,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:29,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:29,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:29,965 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:29,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:29,966 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:29,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:29,968 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:29,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:29,970 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 17:59:29,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:29,971 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 17:59:29,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:29,973 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 17:59:29,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:29,974 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 17:59:29,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:29,976 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 17:59:29,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:29,977 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 17:59:29,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:29,979 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 17:59:29,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:29,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955160139] [2024-09-12 17:59:29,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955160139] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:29,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [865258325] [2024-09-12 17:59:29,979 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 17:59:29,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:29,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:29,981 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 17:59:29,983 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 17:59:30,027 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 17:59:30,028 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:30,029 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 17:59:30,030 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:30,081 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 17:59:30,081 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:30,223 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 17:59:30,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [865258325] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:30,224 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:30,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2024-09-12 17:59:30,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741375738] [2024-09-12 17:59:30,224 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:30,224 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-09-12 17:59:30,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:30,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-09-12 17:59:30,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2024-09-12 17:59:30,225 INFO L87 Difference]: Start difference. First operand 417 states and 554 transitions. Second operand has 20 states, 19 states have (on average 3.5789473684210527) internal successors, (68), 20 states have internal predecessors, (68), 10 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 10 states have call predecessors, (19), 10 states have call successors, (19) [2024-09-12 17:59:30,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:30,418 INFO L93 Difference]: Finished difference Result 452 states and 607 transitions. [2024-09-12 17:59:30,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-12 17:59:30,418 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 3.5789473684210527) internal successors, (68), 20 states have internal predecessors, (68), 10 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 10 states have call predecessors, (19), 10 states have call successors, (19) Word has length 72 [2024-09-12 17:59:30,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:30,421 INFO L225 Difference]: With dead ends: 452 [2024-09-12 17:59:30,421 INFO L226 Difference]: Without dead ends: 451 [2024-09-12 17:59:30,422 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2024-09-12 17:59:30,422 INFO L434 NwaCegarLoop]: 49 mSDtfsCounter, 23 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:30,422 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 430 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:30,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2024-09-12 17:59:30,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 425. [2024-09-12 17:59:30,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 294 states have (on average 1.2074829931972788) internal successors, (355), 314 states have internal predecessors, (355), 106 states have call successors, (106), 19 states have call predecessors, (106), 18 states have return successors, (104), 91 states have call predecessors, (104), 104 states have call successors, (104) [2024-09-12 17:59:30,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 565 transitions. [2024-09-12 17:59:30,496 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 565 transitions. Word has length 72 [2024-09-12 17:59:30,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:30,496 INFO L474 AbstractCegarLoop]: Abstraction has 425 states and 565 transitions. [2024-09-12 17:59:30,496 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.5789473684210527) internal successors, (68), 20 states have internal predecessors, (68), 10 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 10 states have call predecessors, (19), 10 states have call successors, (19) [2024-09-12 17:59:30,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:30,497 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 565 transitions. [2024-09-12 17:59:30,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-09-12 17:59:30,498 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:30,498 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:30,515 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-09-12 17:59:30,702 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-09-12 17:59:30,703 INFO L399 AbstractCegarLoop]: === Iteration 40 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:30,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:30,703 INFO L85 PathProgramCache]: Analyzing trace with hash 99495255, now seen corresponding path program 1 times [2024-09-12 17:59:30,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:30,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643548597] [2024-09-12 17:59:30,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:30,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:30,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:30,838 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:30,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:30,841 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:30,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:30,842 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:30,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:30,844 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 17:59:30,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:30,845 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 17:59:30,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:30,846 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-09-12 17:59:30,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:30,848 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 17:59:30,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:30,850 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 17:59:30,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:30,851 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-09-12 17:59:30,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:30,855 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 17:59:30,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:30,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643548597] [2024-09-12 17:59:30,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643548597] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:30,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824178627] [2024-09-12 17:59:30,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:30,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:30,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:30,858 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 17:59:30,859 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 17:59:30,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:30,904 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 17:59:30,905 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:30,959 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 17:59:30,959 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 17:59:30,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1824178627] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:30,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 17:59:30,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 11 [2024-09-12 17:59:30,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324337344] [2024-09-12 17:59:30,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:30,960 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 17:59:30,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:30,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 17:59:30,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-09-12 17:59:30,961 INFO L87 Difference]: Start difference. First operand 425 states and 565 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-09-12 17:59:31,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:31,135 INFO L93 Difference]: Finished difference Result 428 states and 568 transitions. [2024-09-12 17:59:31,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 17:59:31,136 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 73 [2024-09-12 17:59:31,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:31,139 INFO L225 Difference]: With dead ends: 428 [2024-09-12 17:59:31,139 INFO L226 Difference]: Without dead ends: 426 [2024-09-12 17:59:31,139 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-09-12 17:59:31,140 INFO L434 NwaCegarLoop]: 91 mSDtfsCounter, 16 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:31,140 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 554 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:31,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2024-09-12 17:59:31,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 395. [2024-09-12 17:59:31,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 275 states have (on average 1.1890909090909092) internal successors, (327), 293 states have internal predecessors, (327), 97 states have call successors, (97), 19 states have call predecessors, (97), 18 states have return successors, (95), 82 states have call predecessors, (95), 95 states have call successors, (95) [2024-09-12 17:59:31,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 519 transitions. [2024-09-12 17:59:31,199 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 519 transitions. Word has length 73 [2024-09-12 17:59:31,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:31,199 INFO L474 AbstractCegarLoop]: Abstraction has 395 states and 519 transitions. [2024-09-12 17:59:31,199 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-09-12 17:59:31,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:31,200 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 519 transitions. [2024-09-12 17:59:31,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-09-12 17:59:31,201 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:31,201 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:31,217 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 17:59:31,401 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-09-12 17:59:31,402 INFO L399 AbstractCegarLoop]: === Iteration 41 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:31,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:31,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1731879663, now seen corresponding path program 1 times [2024-09-12 17:59:31,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:31,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134308840] [2024-09-12 17:59:31,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:31,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:31,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:31,479 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:31,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:31,481 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:31,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:31,483 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:31,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:31,484 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 17:59:31,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:31,486 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 17:59:31,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:31,487 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 17:59:31,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:31,489 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-09-12 17:59:31,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:31,490 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-09-12 17:59:31,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:31,492 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-09-12 17:59:31,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:31,495 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 17:59:31,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:31,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134308840] [2024-09-12 17:59:31,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134308840] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:31,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355162572] [2024-09-12 17:59:31,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:31,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:31,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:31,497 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 17:59:31,499 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 17:59:31,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:31,541 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 17:59:31,543 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:31,599 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 17:59:31,599 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:31,743 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 17:59:31,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1355162572] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:31,743 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:31,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2024-09-12 17:59:31,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40492462] [2024-09-12 17:59:31,744 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:31,744 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-09-12 17:59:31,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:31,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-09-12 17:59:31,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2024-09-12 17:59:31,745 INFO L87 Difference]: Start difference. First operand 395 states and 519 transitions. Second operand has 20 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 20 states have internal predecessors, (74), 10 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 10 states have call predecessors, (19), 10 states have call successors, (19) [2024-09-12 17:59:31,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:31,919 INFO L93 Difference]: Finished difference Result 443 states and 591 transitions. [2024-09-12 17:59:31,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 17:59:31,920 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 20 states have internal predecessors, (74), 10 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 10 states have call predecessors, (19), 10 states have call successors, (19) Word has length 75 [2024-09-12 17:59:31,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:31,923 INFO L225 Difference]: With dead ends: 443 [2024-09-12 17:59:31,923 INFO L226 Difference]: Without dead ends: 442 [2024-09-12 17:59:31,923 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2024-09-12 17:59:31,924 INFO L434 NwaCegarLoop]: 47 mSDtfsCounter, 51 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:31,924 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 345 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:31,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2024-09-12 17:59:31,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 431. [2024-09-12 17:59:31,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 303 states have (on average 1.1914191419141915) internal successors, (361), 321 states have internal predecessors, (361), 105 states have call successors, (105), 19 states have call predecessors, (105), 18 states have return successors, (103), 90 states have call predecessors, (103), 103 states have call successors, (103) [2024-09-12 17:59:31,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 569 transitions. [2024-09-12 17:59:31,992 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 569 transitions. Word has length 75 [2024-09-12 17:59:31,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:31,993 INFO L474 AbstractCegarLoop]: Abstraction has 431 states and 569 transitions. [2024-09-12 17:59:31,994 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 20 states have internal predecessors, (74), 10 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 10 states have call predecessors, (19), 10 states have call successors, (19) [2024-09-12 17:59:31,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:31,994 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 569 transitions. [2024-09-12 17:59:31,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-09-12 17:59:31,995 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:31,995 INFO L216 NwaCegarLoop]: trace histogram [9, 8, 8, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:32,012 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 17:59:32,196 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2024-09-12 17:59:32,197 INFO L399 AbstractCegarLoop]: === Iteration 42 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:32,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:32,197 INFO L85 PathProgramCache]: Analyzing trace with hash -349475336, now seen corresponding path program 1 times [2024-09-12 17:59:32,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:32,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591066880] [2024-09-12 17:59:32,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:32,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:32,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:32,333 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:32,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:32,335 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:32,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:32,337 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:32,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:32,338 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 17:59:32,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:32,340 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 17:59:32,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:32,341 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-09-12 17:59:32,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:32,343 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 17:59:32,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:32,344 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 17:59:32,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:32,346 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 17:59:32,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:32,347 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 21 proven. 3 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 17:59:32,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:32,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591066880] [2024-09-12 17:59:32,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591066880] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:32,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1179822741] [2024-09-12 17:59:32,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:32,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:32,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:32,350 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 17:59:32,351 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 17:59:32,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:32,394 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 17:59:32,395 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:32,493 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 17:59:32,494 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 17:59:32,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1179822741] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:32,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 17:59:32,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13] total 17 [2024-09-12 17:59:32,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457195184] [2024-09-12 17:59:32,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:32,495 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 17:59:32,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:32,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 17:59:32,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2024-09-12 17:59:32,496 INFO L87 Difference]: Start difference. First operand 431 states and 569 transitions. Second operand has 13 states, 13 states have (on average 2.923076923076923) internal successors, (38), 12 states have internal predecessors, (38), 6 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-09-12 17:59:32,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:32,767 INFO L93 Difference]: Finished difference Result 470 states and 621 transitions. [2024-09-12 17:59:32,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 17:59:32,768 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.923076923076923) internal successors, (38), 12 states have internal predecessors, (38), 6 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 79 [2024-09-12 17:59:32,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:32,771 INFO L225 Difference]: With dead ends: 470 [2024-09-12 17:59:32,771 INFO L226 Difference]: Without dead ends: 467 [2024-09-12 17:59:32,771 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2024-09-12 17:59:32,772 INFO L434 NwaCegarLoop]: 82 mSDtfsCounter, 19 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:32,772 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 658 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:59:32,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2024-09-12 17:59:32,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 419. [2024-09-12 17:59:32,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 295 states have (on average 1.1864406779661016) internal successors, (350), 312 states have internal predecessors, (350), 101 states have call successors, (101), 19 states have call predecessors, (101), 18 states have return successors, (99), 87 states have call predecessors, (99), 99 states have call successors, (99) [2024-09-12 17:59:32,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 550 transitions. [2024-09-12 17:59:32,828 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 550 transitions. Word has length 79 [2024-09-12 17:59:32,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:32,829 INFO L474 AbstractCegarLoop]: Abstraction has 419 states and 550 transitions. [2024-09-12 17:59:32,829 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.923076923076923) internal successors, (38), 12 states have internal predecessors, (38), 6 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-09-12 17:59:32,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:32,829 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 550 transitions. [2024-09-12 17:59:32,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-09-12 17:59:32,830 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:32,830 INFO L216 NwaCegarLoop]: trace histogram [9, 8, 8, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:32,846 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 17:59:33,031 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,22 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:33,031 INFO L399 AbstractCegarLoop]: === Iteration 43 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:33,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:33,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1780745638, now seen corresponding path program 1 times [2024-09-12 17:59:33,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:33,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699234350] [2024-09-12 17:59:33,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:33,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:33,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:33,156 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:33,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:33,158 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:33,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:33,160 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:33,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:33,161 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 17:59:33,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:33,163 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 17:59:33,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:33,164 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-09-12 17:59:33,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:33,165 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 17:59:33,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:33,167 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 17:59:33,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:33,168 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-09-12 17:59:33,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:33,170 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 21 proven. 3 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 17:59:33,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:33,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699234350] [2024-09-12 17:59:33,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699234350] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:33,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051372905] [2024-09-12 17:59:33,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:33,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:33,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:33,173 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 17:59:33,174 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 17:59:33,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:33,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 17:59:33,227 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:33,308 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 17:59:33,309 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 17:59:33,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051372905] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:33,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 17:59:33,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13] total 17 [2024-09-12 17:59:33,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619406724] [2024-09-12 17:59:33,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:33,310 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 17:59:33,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:33,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 17:59:33,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2024-09-12 17:59:33,312 INFO L87 Difference]: Start difference. First operand 419 states and 550 transitions. Second operand has 13 states, 13 states have (on average 2.923076923076923) internal successors, (38), 12 states have internal predecessors, (38), 6 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-09-12 17:59:33,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:33,567 INFO L93 Difference]: Finished difference Result 422 states and 553 transitions. [2024-09-12 17:59:33,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 17:59:33,568 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.923076923076923) internal successors, (38), 12 states have internal predecessors, (38), 6 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 79 [2024-09-12 17:59:33,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:33,571 INFO L225 Difference]: With dead ends: 422 [2024-09-12 17:59:33,571 INFO L226 Difference]: Without dead ends: 419 [2024-09-12 17:59:33,571 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2024-09-12 17:59:33,572 INFO L434 NwaCegarLoop]: 80 mSDtfsCounter, 18 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:33,572 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 697 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:59:33,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2024-09-12 17:59:33,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 416. [2024-09-12 17:59:33,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 294 states have (on average 1.1802721088435375) internal successors, (347), 309 states have internal predecessors, (347), 100 states have call successors, (100), 19 states have call predecessors, (100), 18 states have return successors, (99), 87 states have call predecessors, (99), 99 states have call successors, (99) [2024-09-12 17:59:33,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 546 transitions. [2024-09-12 17:59:33,635 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 546 transitions. Word has length 79 [2024-09-12 17:59:33,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:33,635 INFO L474 AbstractCegarLoop]: Abstraction has 416 states and 546 transitions. [2024-09-12 17:59:33,636 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.923076923076923) internal successors, (38), 12 states have internal predecessors, (38), 6 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-09-12 17:59:33,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:33,636 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 546 transitions. [2024-09-12 17:59:33,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-09-12 17:59:33,637 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:33,638 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:33,654 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:33,838 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2024-09-12 17:59:33,838 INFO L399 AbstractCegarLoop]: === Iteration 44 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:33,839 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:33,839 INFO L85 PathProgramCache]: Analyzing trace with hash -144320791, now seen corresponding path program 1 times [2024-09-12 17:59:33,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:33,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282700979] [2024-09-12 17:59:33,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:33,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:33,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:33,952 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:33,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:33,954 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:33,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:33,956 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:33,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:33,957 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 17:59:33,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:33,958 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 17:59:33,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:33,960 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-09-12 17:59:33,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:33,963 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 17:59:33,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:33,965 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 17:59:33,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:33,966 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 17:59:33,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:33,968 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 17:59:33,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:33,970 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 17:59:33,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:33,973 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 17:59:33,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:33,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282700979] [2024-09-12 17:59:33,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282700979] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:33,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1357812423] [2024-09-12 17:59:33,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:33,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:33,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:33,976 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:33,978 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-09-12 17:59:34,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:34,029 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 17:59:34,030 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:34,098 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 17:59:34,098 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:34,284 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 17:59:34,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1357812423] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:34,285 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:34,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2024-09-12 17:59:34,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284918889] [2024-09-12 17:59:34,285 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:34,286 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-12 17:59:34,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:34,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-12 17:59:34,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=437, Unknown=0, NotChecked=0, Total=552 [2024-09-12 17:59:34,288 INFO L87 Difference]: Start difference. First operand 416 states and 546 transitions. Second operand has 24 states, 23 states have (on average 3.5652173913043477) internal successors, (82), 24 states have internal predecessors, (82), 12 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 12 states have call predecessors, (23), 12 states have call successors, (23) [2024-09-12 17:59:34,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:34,490 INFO L93 Difference]: Finished difference Result 526 states and 707 transitions. [2024-09-12 17:59:34,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-12 17:59:34,491 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.5652173913043477) internal successors, (82), 24 states have internal predecessors, (82), 12 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 12 states have call predecessors, (23), 12 states have call successors, (23) Word has length 89 [2024-09-12 17:59:34,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:34,493 INFO L225 Difference]: With dead ends: 526 [2024-09-12 17:59:34,494 INFO L226 Difference]: Without dead ends: 524 [2024-09-12 17:59:34,494 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=115, Invalid=437, Unknown=0, NotChecked=0, Total=552 [2024-09-12 17:59:34,494 INFO L434 NwaCegarLoop]: 40 mSDtfsCounter, 37 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:34,495 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 421 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:34,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2024-09-12 17:59:34,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 477. [2024-09-12 17:59:34,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 340 states have (on average 1.1852941176470588) internal successors, (403), 355 states have internal predecessors, (403), 115 states have call successors, (115), 19 states have call predecessors, (115), 18 states have return successors, (114), 102 states have call predecessors, (114), 114 states have call successors, (114) [2024-09-12 17:59:34,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 632 transitions. [2024-09-12 17:59:34,570 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 632 transitions. Word has length 89 [2024-09-12 17:59:34,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:34,570 INFO L474 AbstractCegarLoop]: Abstraction has 477 states and 632 transitions. [2024-09-12 17:59:34,570 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.5652173913043477) internal successors, (82), 24 states have internal predecessors, (82), 12 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 12 states have call predecessors, (23), 12 states have call successors, (23) [2024-09-12 17:59:34,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:34,571 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 632 transitions. [2024-09-12 17:59:34,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-09-12 17:59:34,573 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:34,573 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:34,589 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-09-12 17:59:34,773 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-09-12 17:59:34,774 INFO L399 AbstractCegarLoop]: === Iteration 45 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:34,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:34,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1254959598, now seen corresponding path program 2 times [2024-09-12 17:59:34,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:34,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955823938] [2024-09-12 17:59:34,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:34,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:34,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:34,876 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:34,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:34,877 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:34,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:34,879 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:34,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:34,881 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 17:59:34,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:34,882 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 17:59:34,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:34,884 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 17:59:34,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:34,885 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 17:59:34,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:34,887 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 17:59:34,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:34,888 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 17:59:34,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:34,890 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 17:59:34,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:34,891 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 17:59:34,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:34,893 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 17:59:34,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:34,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955823938] [2024-09-12 17:59:34,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955823938] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:34,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638817194] [2024-09-12 17:59:34,894 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 17:59:34,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:34,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:34,896 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:34,897 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-09-12 17:59:34,947 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 17:59:34,948 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:34,948 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 17:59:34,950 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:35,012 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 17:59:35,012 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:35,187 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 17:59:35,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [638817194] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:35,187 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:35,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2024-09-12 17:59:35,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116098360] [2024-09-12 17:59:35,188 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:35,188 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-12 17:59:35,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:35,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-12 17:59:35,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=429, Unknown=0, NotChecked=0, Total=552 [2024-09-12 17:59:35,189 INFO L87 Difference]: Start difference. First operand 477 states and 632 transitions. Second operand has 24 states, 23 states have (on average 3.5652173913043477) internal successors, (82), 24 states have internal predecessors, (82), 12 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 12 states have call predecessors, (23), 12 states have call successors, (23) [2024-09-12 17:59:35,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:35,420 INFO L93 Difference]: Finished difference Result 525 states and 704 transitions. [2024-09-12 17:59:35,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-12 17:59:35,420 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.5652173913043477) internal successors, (82), 24 states have internal predecessors, (82), 12 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 12 states have call predecessors, (23), 12 states have call successors, (23) Word has length 89 [2024-09-12 17:59:35,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:35,423 INFO L225 Difference]: With dead ends: 525 [2024-09-12 17:59:35,423 INFO L226 Difference]: Without dead ends: 524 [2024-09-12 17:59:35,424 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=429, Unknown=0, NotChecked=0, Total=552 [2024-09-12 17:59:35,424 INFO L434 NwaCegarLoop]: 40 mSDtfsCounter, 23 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:35,424 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 306 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:35,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2024-09-12 17:59:35,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 486. [2024-09-12 17:59:35,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 347 states have (on average 1.1873198847262247) internal successors, (412), 362 states have internal predecessors, (412), 117 states have call successors, (117), 19 states have call predecessors, (117), 18 states have return successors, (116), 104 states have call predecessors, (116), 116 states have call successors, (116) [2024-09-12 17:59:35,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 645 transitions. [2024-09-12 17:59:35,494 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 645 transitions. Word has length 89 [2024-09-12 17:59:35,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:35,494 INFO L474 AbstractCegarLoop]: Abstraction has 486 states and 645 transitions. [2024-09-12 17:59:35,494 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.5652173913043477) internal successors, (82), 24 states have internal predecessors, (82), 12 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 12 states have call predecessors, (23), 12 states have call successors, (23) [2024-09-12 17:59:35,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:35,495 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 645 transitions. [2024-09-12 17:59:35,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-09-12 17:59:35,496 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:35,496 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:35,512 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:35,697 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-09-12 17:59:35,697 INFO L399 AbstractCegarLoop]: === Iteration 46 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:35,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:35,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1108157737, now seen corresponding path program 2 times [2024-09-12 17:59:35,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:35,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924103161] [2024-09-12 17:59:35,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:35,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:35,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:35,805 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:35,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:35,807 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:35,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:35,808 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:35,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:35,810 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 17:59:35,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:35,812 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 17:59:35,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:35,814 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 17:59:35,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:35,815 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 17:59:35,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:35,816 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 17:59:35,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:35,818 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 17:59:35,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:35,819 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 17:59:35,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:35,821 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 17:59:35,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:35,822 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 17:59:35,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:35,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924103161] [2024-09-12 17:59:35,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924103161] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:35,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615211684] [2024-09-12 17:59:35,823 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 17:59:35,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:35,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:35,825 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:35,837 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-09-12 17:59:35,890 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 17:59:35,890 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:35,891 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 17:59:35,892 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:35,961 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 17:59:35,961 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:36,144 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 17:59:36,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615211684] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:36,145 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:36,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2024-09-12 17:59:36,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777409340] [2024-09-12 17:59:36,145 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:36,146 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-12 17:59:36,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:36,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-12 17:59:36,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=429, Unknown=0, NotChecked=0, Total=552 [2024-09-12 17:59:36,147 INFO L87 Difference]: Start difference. First operand 486 states and 645 transitions. Second operand has 24 states, 23 states have (on average 3.5652173913043477) internal successors, (82), 24 states have internal predecessors, (82), 12 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 12 states have call predecessors, (23), 12 states have call successors, (23) [2024-09-12 17:59:36,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:36,350 INFO L93 Difference]: Finished difference Result 537 states and 721 transitions. [2024-09-12 17:59:36,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-12 17:59:36,350 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.5652173913043477) internal successors, (82), 24 states have internal predecessors, (82), 12 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 12 states have call predecessors, (23), 12 states have call successors, (23) Word has length 89 [2024-09-12 17:59:36,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:36,353 INFO L225 Difference]: With dead ends: 537 [2024-09-12 17:59:36,354 INFO L226 Difference]: Without dead ends: 536 [2024-09-12 17:59:36,354 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=429, Unknown=0, NotChecked=0, Total=552 [2024-09-12 17:59:36,355 INFO L434 NwaCegarLoop]: 41 mSDtfsCounter, 43 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:36,355 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 353 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:36,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-09-12 17:59:36,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 505. [2024-09-12 17:59:36,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 362 states have (on average 1.1906077348066297) internal successors, (431), 377 states have internal predecessors, (431), 121 states have call successors, (121), 19 states have call predecessors, (121), 18 states have return successors, (120), 108 states have call predecessors, (120), 120 states have call successors, (120) [2024-09-12 17:59:36,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 672 transitions. [2024-09-12 17:59:36,445 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 672 transitions. Word has length 89 [2024-09-12 17:59:36,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:36,445 INFO L474 AbstractCegarLoop]: Abstraction has 505 states and 672 transitions. [2024-09-12 17:59:36,448 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.5652173913043477) internal successors, (82), 24 states have internal predecessors, (82), 12 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 12 states have call predecessors, (23), 12 states have call successors, (23) [2024-09-12 17:59:36,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:36,448 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 672 transitions. [2024-09-12 17:59:36,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-09-12 17:59:36,449 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:36,450 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:36,466 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:36,650 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-09-12 17:59:36,651 INFO L399 AbstractCegarLoop]: === Iteration 47 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:36,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:36,651 INFO L85 PathProgramCache]: Analyzing trace with hash 811210882, now seen corresponding path program 1 times [2024-09-12 17:59:36,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:36,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124272489] [2024-09-12 17:59:36,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:36,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:36,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:36,760 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:36,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:36,762 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:36,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:36,764 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:36,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:36,766 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 17:59:36,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:36,771 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 17:59:36,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:36,773 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 17:59:36,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:36,775 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 17:59:36,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:36,776 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-09-12 17:59:36,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:36,778 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 17:59:36,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:36,779 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-12 17:59:36,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:36,781 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-09-12 17:59:36,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:36,783 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 17:59:36,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:36,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124272489] [2024-09-12 17:59:36,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124272489] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:36,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147329588] [2024-09-12 17:59:36,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:36,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:36,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:36,785 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:36,787 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-09-12 17:59:36,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:36,836 INFO L262 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 17:59:36,838 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:36,895 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 17:59:36,895 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:37,056 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 17:59:37,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [147329588] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:37,056 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:37,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2024-09-12 17:59:37,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856912136] [2024-09-12 17:59:37,057 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:37,057 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-12 17:59:37,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:37,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-12 17:59:37,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=439, Unknown=0, NotChecked=0, Total=552 [2024-09-12 17:59:37,058 INFO L87 Difference]: Start difference. First operand 505 states and 672 transitions. Second operand has 24 states, 23 states have (on average 3.652173913043478) internal successors, (84), 24 states have internal predecessors, (84), 12 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 12 states have call predecessors, (23), 12 states have call successors, (23) [2024-09-12 17:59:37,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:37,287 INFO L93 Difference]: Finished difference Result 622 states and 839 transitions. [2024-09-12 17:59:37,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-12 17:59:37,287 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.652173913043478) internal successors, (84), 24 states have internal predecessors, (84), 12 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 12 states have call predecessors, (23), 12 states have call successors, (23) Word has length 90 [2024-09-12 17:59:37,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:37,290 INFO L225 Difference]: With dead ends: 622 [2024-09-12 17:59:37,290 INFO L226 Difference]: Without dead ends: 620 [2024-09-12 17:59:37,290 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=439, Unknown=0, NotChecked=0, Total=552 [2024-09-12 17:59:37,291 INFO L434 NwaCegarLoop]: 38 mSDtfsCounter, 24 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:37,291 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 404 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:37,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2024-09-12 17:59:37,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 538. [2024-09-12 17:59:37,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 385 states have (on average 1.1948051948051948) internal successors, (460), 402 states have internal predecessors, (460), 131 states have call successors, (131), 19 states have call predecessors, (131), 18 states have return successors, (130), 116 states have call predecessors, (130), 130 states have call successors, (130) [2024-09-12 17:59:37,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 721 transitions. [2024-09-12 17:59:37,373 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 721 transitions. Word has length 90 [2024-09-12 17:59:37,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:37,374 INFO L474 AbstractCegarLoop]: Abstraction has 538 states and 721 transitions. [2024-09-12 17:59:37,374 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.652173913043478) internal successors, (84), 24 states have internal predecessors, (84), 12 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 12 states have call predecessors, (23), 12 states have call successors, (23) [2024-09-12 17:59:37,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:37,374 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 721 transitions. [2024-09-12 17:59:37,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-09-12 17:59:37,376 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:37,376 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:37,392 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:37,576 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,27 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:37,577 INFO L399 AbstractCegarLoop]: === Iteration 48 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:37,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:37,577 INFO L85 PathProgramCache]: Analyzing trace with hash -16049817, now seen corresponding path program 1 times [2024-09-12 17:59:37,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:37,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089686920] [2024-09-12 17:59:37,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:37,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:37,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:37,692 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:37,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:37,694 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:37,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:37,696 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:37,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:37,698 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 17:59:37,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:37,699 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 17:59:37,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:37,701 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-09-12 17:59:37,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:37,702 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 17:59:37,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:37,703 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 17:59:37,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:37,705 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-09-12 17:59:37,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:37,706 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 17:59:37,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:37,708 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 17:59:37,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:37,709 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 17:59:37,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:37,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089686920] [2024-09-12 17:59:37,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089686920] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:37,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1060936984] [2024-09-12 17:59:37,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:37,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:37,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:37,712 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:37,715 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-09-12 17:59:37,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:37,755 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 17:59:37,757 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:37,816 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 17:59:37,816 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:37,973 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 17:59:37,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1060936984] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:37,973 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:37,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2024-09-12 17:59:37,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687234573] [2024-09-12 17:59:37,973 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:37,974 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-12 17:59:37,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:37,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-12 17:59:37,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=433, Unknown=0, NotChecked=0, Total=552 [2024-09-12 17:59:37,975 INFO L87 Difference]: Start difference. First operand 538 states and 721 transitions. Second operand has 24 states, 23 states have (on average 3.739130434782609) internal successors, (86), 24 states have internal predecessors, (86), 12 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 12 states have call predecessors, (23), 12 states have call successors, (23) [2024-09-12 17:59:38,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:38,178 INFO L93 Difference]: Finished difference Result 631 states and 860 transitions. [2024-09-12 17:59:38,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-12 17:59:38,178 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.739130434782609) internal successors, (86), 24 states have internal predecessors, (86), 12 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 12 states have call predecessors, (23), 12 states have call successors, (23) Word has length 91 [2024-09-12 17:59:38,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:38,181 INFO L225 Difference]: With dead ends: 631 [2024-09-12 17:59:38,182 INFO L226 Difference]: Without dead ends: 630 [2024-09-12 17:59:38,182 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=119, Invalid=433, Unknown=0, NotChecked=0, Total=552 [2024-09-12 17:59:38,183 INFO L434 NwaCegarLoop]: 41 mSDtfsCounter, 48 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:38,183 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 434 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:38,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2024-09-12 17:59:38,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 588. [2024-09-12 17:59:38,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 425 states have (on average 1.2) internal successors, (510), 442 states have internal predecessors, (510), 141 states have call successors, (141), 19 states have call predecessors, (141), 18 states have return successors, (140), 126 states have call predecessors, (140), 140 states have call successors, (140) [2024-09-12 17:59:38,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 791 transitions. [2024-09-12 17:59:38,286 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 791 transitions. Word has length 91 [2024-09-12 17:59:38,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:38,286 INFO L474 AbstractCegarLoop]: Abstraction has 588 states and 791 transitions. [2024-09-12 17:59:38,287 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.739130434782609) internal successors, (86), 24 states have internal predecessors, (86), 12 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 12 states have call predecessors, (23), 12 states have call successors, (23) [2024-09-12 17:59:38,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:38,287 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 791 transitions. [2024-09-12 17:59:38,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-09-12 17:59:38,289 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:38,289 INFO L216 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:38,313 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-09-12 17:59:38,490 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-09-12 17:59:38,490 INFO L399 AbstractCegarLoop]: === Iteration 49 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:38,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:38,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1391983503, now seen corresponding path program 1 times [2024-09-12 17:59:38,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:38,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888556140] [2024-09-12 17:59:38,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:38,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:38,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:38,619 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:38,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:38,620 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:38,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:38,622 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:38,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:38,623 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 17:59:38,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:38,624 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 17:59:38,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:38,625 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 17:59:38,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:38,627 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-09-12 17:59:38,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:38,628 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 17:59:38,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:38,630 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 17:59:38,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:38,631 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 17:59:38,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:38,633 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 17:59:38,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:38,635 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-09-12 17:59:38,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:38,636 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 17:59:38,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:38,638 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-09-12 17:59:38,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:38,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888556140] [2024-09-12 17:59:38,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888556140] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:38,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188381970] [2024-09-12 17:59:38,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:38,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:38,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:38,641 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:38,642 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-09-12 17:59:38,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:38,693 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 17:59:38,694 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:38,770 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-09-12 17:59:38,771 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:39,038 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-09-12 17:59:39,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1188381970] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:39,039 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:39,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 27 [2024-09-12 17:59:39,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071524168] [2024-09-12 17:59:39,040 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:39,040 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-09-12 17:59:39,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:39,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-09-12 17:59:39,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=601, Unknown=0, NotChecked=0, Total=756 [2024-09-12 17:59:39,042 INFO L87 Difference]: Start difference. First operand 588 states and 791 transitions. Second operand has 28 states, 27 states have (on average 3.3333333333333335) internal successors, (90), 28 states have internal predecessors, (90), 14 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (27), 14 states have call predecessors, (27), 14 states have call successors, (27) [2024-09-12 17:59:39,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:39,283 INFO L93 Difference]: Finished difference Result 769 states and 1053 transitions. [2024-09-12 17:59:39,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-09-12 17:59:39,284 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 3.3333333333333335) internal successors, (90), 28 states have internal predecessors, (90), 14 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (27), 14 states have call predecessors, (27), 14 states have call successors, (27) Word has length 103 [2024-09-12 17:59:39,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:39,287 INFO L225 Difference]: With dead ends: 769 [2024-09-12 17:59:39,287 INFO L226 Difference]: Without dead ends: 767 [2024-09-12 17:59:39,287 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=601, Unknown=0, NotChecked=0, Total=756 [2024-09-12 17:59:39,288 INFO L434 NwaCegarLoop]: 40 mSDtfsCounter, 54 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:39,288 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 394 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:39,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2024-09-12 17:59:39,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 667. [2024-09-12 17:59:39,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 477 states have (on average 1.1949685534591195) internal successors, (570), 500 states have internal predecessors, (570), 168 states have call successors, (168), 19 states have call predecessors, (168), 18 states have return successors, (167), 147 states have call predecessors, (167), 167 states have call successors, (167) [2024-09-12 17:59:39,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 905 transitions. [2024-09-12 17:59:39,384 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 905 transitions. Word has length 103 [2024-09-12 17:59:39,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:39,384 INFO L474 AbstractCegarLoop]: Abstraction has 667 states and 905 transitions. [2024-09-12 17:59:39,385 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 3.3333333333333335) internal successors, (90), 28 states have internal predecessors, (90), 14 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (27), 14 states have call predecessors, (27), 14 states have call successors, (27) [2024-09-12 17:59:39,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:39,385 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 905 transitions. [2024-09-12 17:59:39,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-09-12 17:59:39,387 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:39,387 INFO L216 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:39,403 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:39,587 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-09-12 17:59:39,587 INFO L399 AbstractCegarLoop]: === Iteration 50 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:39,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:39,588 INFO L85 PathProgramCache]: Analyzing trace with hash 616927866, now seen corresponding path program 2 times [2024-09-12 17:59:39,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:39,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012519420] [2024-09-12 17:59:39,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:39,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:39,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:39,705 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:39,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:39,707 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:39,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:39,708 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:39,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:39,710 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 17:59:39,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:39,711 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 17:59:39,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:39,712 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 17:59:39,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:39,714 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 17:59:39,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:39,715 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 17:59:39,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:39,717 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 17:59:39,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:39,718 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 17:59:39,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:39,720 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 17:59:39,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:39,721 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-09-12 17:59:39,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:39,723 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 17:59:39,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:39,724 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-09-12 17:59:39,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:39,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012519420] [2024-09-12 17:59:39,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012519420] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:39,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [721743889] [2024-09-12 17:59:39,725 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 17:59:39,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:39,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:39,727 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:39,728 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-09-12 17:59:39,774 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 17:59:39,774 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:39,775 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 17:59:39,777 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:39,859 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-09-12 17:59:39,859 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:40,052 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-09-12 17:59:40,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [721743889] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:40,052 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:40,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 27 [2024-09-12 17:59:40,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248645255] [2024-09-12 17:59:40,053 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:40,053 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-09-12 17:59:40,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:40,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-09-12 17:59:40,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=601, Unknown=0, NotChecked=0, Total=756 [2024-09-12 17:59:40,054 INFO L87 Difference]: Start difference. First operand 667 states and 905 transitions. Second operand has 28 states, 27 states have (on average 3.3333333333333335) internal successors, (90), 28 states have internal predecessors, (90), 14 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (27), 14 states have call predecessors, (27), 14 states have call successors, (27) [2024-09-12 17:59:40,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:40,315 INFO L93 Difference]: Finished difference Result 767 states and 1045 transitions. [2024-09-12 17:59:40,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-12 17:59:40,316 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 3.3333333333333335) internal successors, (90), 28 states have internal predecessors, (90), 14 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (27), 14 states have call predecessors, (27), 14 states have call successors, (27) Word has length 103 [2024-09-12 17:59:40,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:40,320 INFO L225 Difference]: With dead ends: 767 [2024-09-12 17:59:40,320 INFO L226 Difference]: Without dead ends: 765 [2024-09-12 17:59:40,321 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=601, Unknown=0, NotChecked=0, Total=756 [2024-09-12 17:59:40,321 INFO L434 NwaCegarLoop]: 38 mSDtfsCounter, 39 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:40,322 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 418 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:59:40,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2024-09-12 17:59:40,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 679. [2024-09-12 17:59:40,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 488 states have (on average 1.194672131147541) internal successors, (583), 510 states have internal predecessors, (583), 169 states have call successors, (169), 19 states have call predecessors, (169), 18 states have return successors, (168), 149 states have call predecessors, (168), 168 states have call successors, (168) [2024-09-12 17:59:40,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 920 transitions. [2024-09-12 17:59:40,432 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 920 transitions. Word has length 103 [2024-09-12 17:59:40,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:40,432 INFO L474 AbstractCegarLoop]: Abstraction has 679 states and 920 transitions. [2024-09-12 17:59:40,432 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 3.3333333333333335) internal successors, (90), 28 states have internal predecessors, (90), 14 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (27), 14 states have call predecessors, (27), 14 states have call successors, (27) [2024-09-12 17:59:40,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:40,432 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 920 transitions. [2024-09-12 17:59:40,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-09-12 17:59:40,435 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:40,435 INFO L216 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:40,451 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:40,635 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-09-12 17:59:40,636 INFO L399 AbstractCegarLoop]: === Iteration 51 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:40,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:40,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1080435871, now seen corresponding path program 1 times [2024-09-12 17:59:40,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:40,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37115670] [2024-09-12 17:59:40,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:40,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:40,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:40,743 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:40,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:40,745 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:40,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:40,746 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:40,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:40,747 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 17:59:40,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:40,748 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 17:59:40,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:40,749 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-09-12 17:59:40,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:40,751 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 17:59:40,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:40,752 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 17:59:40,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:40,753 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 17:59:40,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:40,754 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-09-12 17:59:40,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:40,756 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-09-12 17:59:40,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:40,757 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-12 17:59:40,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:40,759 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 17:59:40,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:40,760 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-09-12 17:59:40,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:40,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37115670] [2024-09-12 17:59:40,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37115670] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:40,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140697399] [2024-09-12 17:59:40,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:40,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:40,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:40,763 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:40,769 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-09-12 17:59:40,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:40,818 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 17:59:40,819 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:40,879 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-09-12 17:59:40,880 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:41,074 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-09-12 17:59:41,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1140697399] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:41,075 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:41,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 27 [2024-09-12 17:59:41,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921165962] [2024-09-12 17:59:41,075 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:41,075 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-09-12 17:59:41,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:41,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-09-12 17:59:41,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=609, Unknown=0, NotChecked=0, Total=756 [2024-09-12 17:59:41,076 INFO L87 Difference]: Start difference. First operand 679 states and 920 transitions. Second operand has 28 states, 27 states have (on average 3.4814814814814814) internal successors, (94), 28 states have internal predecessors, (94), 14 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (27), 14 states have call predecessors, (27), 14 states have call successors, (27) [2024-09-12 17:59:41,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:41,340 INFO L93 Difference]: Finished difference Result 929 states and 1281 transitions. [2024-09-12 17:59:41,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-12 17:59:41,340 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 3.4814814814814814) internal successors, (94), 28 states have internal predecessors, (94), 14 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (27), 14 states have call predecessors, (27), 14 states have call successors, (27) Word has length 105 [2024-09-12 17:59:41,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:41,344 INFO L225 Difference]: With dead ends: 929 [2024-09-12 17:59:41,344 INFO L226 Difference]: Without dead ends: 927 [2024-09-12 17:59:41,344 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=147, Invalid=609, Unknown=0, NotChecked=0, Total=756 [2024-09-12 17:59:41,345 INFO L434 NwaCegarLoop]: 38 mSDtfsCounter, 36 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:41,345 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 422 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:41,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 927 states. [2024-09-12 17:59:41,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 747. [2024-09-12 17:59:41,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 747 states, 535 states have (on average 1.1925233644859814) internal successors, (638), 560 states have internal predecessors, (638), 190 states have call successors, (190), 19 states have call predecessors, (190), 18 states have return successors, (189), 167 states have call predecessors, (189), 189 states have call successors, (189) [2024-09-12 17:59:41,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 1017 transitions. [2024-09-12 17:59:41,471 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 1017 transitions. Word has length 105 [2024-09-12 17:59:41,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:41,472 INFO L474 AbstractCegarLoop]: Abstraction has 747 states and 1017 transitions. [2024-09-12 17:59:41,472 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 3.4814814814814814) internal successors, (94), 28 states have internal predecessors, (94), 14 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (27), 14 states have call predecessors, (27), 14 states have call successors, (27) [2024-09-12 17:59:41,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:41,473 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 1017 transitions. [2024-09-12 17:59:41,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-09-12 17:59:41,476 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:41,476 INFO L216 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:41,493 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:41,677 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable50 [2024-09-12 17:59:41,677 INFO L399 AbstractCegarLoop]: === Iteration 52 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:41,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:41,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1018088967, now seen corresponding path program 1 times [2024-09-12 17:59:41,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:41,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901681628] [2024-09-12 17:59:41,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:41,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:41,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:41,843 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:41,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:41,845 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:41,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:41,846 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:41,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:41,847 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 17:59:41,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:41,848 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 17:59:41,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:41,849 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-09-12 17:59:41,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:41,850 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 17:59:41,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:41,852 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 17:59:41,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:41,853 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-09-12 17:59:41,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:41,855 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-09-12 17:59:41,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:41,856 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-09-12 17:59:41,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:41,857 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-12 17:59:41,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:41,859 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 17:59:41,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:41,860 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-09-12 17:59:41,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:41,862 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-09-12 17:59:41,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:41,864 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 17:59:41,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:41,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901681628] [2024-09-12 17:59:41,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901681628] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:41,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [698436484] [2024-09-12 17:59:41,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:41,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:41,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:41,867 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:41,868 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-09-12 17:59:41,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:41,923 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 17:59:41,925 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:41,999 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 17:59:41,999 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:42,231 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 17:59:42,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [698436484] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:42,231 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:42,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 31 [2024-09-12 17:59:42,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454543695] [2024-09-12 17:59:42,232 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:42,232 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-09-12 17:59:42,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:42,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-09-12 17:59:42,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=801, Unknown=0, NotChecked=0, Total=992 [2024-09-12 17:59:42,233 INFO L87 Difference]: Start difference. First operand 747 states and 1017 transitions. Second operand has 32 states, 31 states have (on average 3.2903225806451615) internal successors, (102), 32 states have internal predecessors, (102), 16 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (31), 16 states have call predecessors, (31), 16 states have call successors, (31) [2024-09-12 17:59:42,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:42,545 INFO L93 Difference]: Finished difference Result 983 states and 1357 transitions. [2024-09-12 17:59:42,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-09-12 17:59:42,545 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 3.2903225806451615) internal successors, (102), 32 states have internal predecessors, (102), 16 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (31), 16 states have call predecessors, (31), 16 states have call successors, (31) Word has length 119 [2024-09-12 17:59:42,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:42,550 INFO L225 Difference]: With dead ends: 983 [2024-09-12 17:59:42,550 INFO L226 Difference]: Without dead ends: 981 [2024-09-12 17:59:42,551 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=191, Invalid=801, Unknown=0, NotChecked=0, Total=992 [2024-09-12 17:59:42,551 INFO L434 NwaCegarLoop]: 38 mSDtfsCounter, 56 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:42,551 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 532 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:59:42,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states. [2024-09-12 17:59:42,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 624. [2024-09-12 17:59:42,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 624 states, 441 states have (on average 1.1882086167800454) internal successors, (524), 469 states have internal predecessors, (524), 162 states have call successors, (162), 18 states have call predecessors, (162), 17 states have return successors, (161), 136 states have call predecessors, (161), 161 states have call successors, (161) [2024-09-12 17:59:42,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 847 transitions. [2024-09-12 17:59:42,654 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 847 transitions. Word has length 119 [2024-09-12 17:59:42,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:42,655 INFO L474 AbstractCegarLoop]: Abstraction has 624 states and 847 transitions. [2024-09-12 17:59:42,655 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 3.2903225806451615) internal successors, (102), 32 states have internal predecessors, (102), 16 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (31), 16 states have call predecessors, (31), 16 states have call successors, (31) [2024-09-12 17:59:42,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:42,655 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 847 transitions. [2024-09-12 17:59:42,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-09-12 17:59:42,658 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:42,658 INFO L216 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:42,669 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:42,859 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,32 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:42,860 INFO L399 AbstractCegarLoop]: === Iteration 53 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:42,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:42,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1755163009, now seen corresponding path program 2 times [2024-09-12 17:59:42,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:42,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184495569] [2024-09-12 17:59:42,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:42,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:42,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:43,020 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:43,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:43,021 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:43,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:43,023 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:43,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:43,024 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 17:59:43,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:43,025 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 17:59:43,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:43,027 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 17:59:43,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:43,028 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 17:59:43,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:43,030 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 17:59:43,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:43,031 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 17:59:43,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:43,032 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-09-12 17:59:43,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:43,034 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-09-12 17:59:43,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:43,035 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-12 17:59:43,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:43,038 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-09-12 17:59:43,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:43,040 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-09-12 17:59:43,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:43,042 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-09-12 17:59:43,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:43,044 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 17:59:43,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:43,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184495569] [2024-09-12 17:59:43,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184495569] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:43,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447431378] [2024-09-12 17:59:43,044 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 17:59:43,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:43,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:43,046 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:43,048 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-09-12 17:59:43,104 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 17:59:43,104 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:43,106 INFO L262 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 17:59:43,108 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:43,186 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 17:59:43,186 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:43,441 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 17:59:43,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447431378] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:43,442 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:43,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 31 [2024-09-12 17:59:43,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518236134] [2024-09-12 17:59:43,442 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:43,442 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-09-12 17:59:43,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:43,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-09-12 17:59:43,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2024-09-12 17:59:43,443 INFO L87 Difference]: Start difference. First operand 624 states and 847 transitions. Second operand has 32 states, 31 states have (on average 3.3548387096774195) internal successors, (104), 32 states have internal predecessors, (104), 16 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (31), 16 states have call predecessors, (31), 16 states have call successors, (31) [2024-09-12 17:59:43,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:43,711 INFO L93 Difference]: Finished difference Result 710 states and 979 transitions. [2024-09-12 17:59:43,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-09-12 17:59:43,711 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 3.3548387096774195) internal successors, (104), 32 states have internal predecessors, (104), 16 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (31), 16 states have call predecessors, (31), 16 states have call successors, (31) Word has length 120 [2024-09-12 17:59:43,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:43,715 INFO L225 Difference]: With dead ends: 710 [2024-09-12 17:59:43,715 INFO L226 Difference]: Without dead ends: 709 [2024-09-12 17:59:43,716 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2024-09-12 17:59:43,716 INFO L434 NwaCegarLoop]: 48 mSDtfsCounter, 44 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:43,716 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 375 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:59:43,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2024-09-12 17:59:43,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 685. [2024-09-12 17:59:43,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 486 states have (on average 1.1851851851851851) internal successors, (576), 514 states have internal predecessors, (576), 178 states have call successors, (178), 18 states have call predecessors, (178), 17 states have return successors, (177), 152 states have call predecessors, (177), 177 states have call successors, (177) [2024-09-12 17:59:43,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 931 transitions. [2024-09-12 17:59:43,857 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 931 transitions. Word has length 120 [2024-09-12 17:59:43,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:43,857 INFO L474 AbstractCegarLoop]: Abstraction has 685 states and 931 transitions. [2024-09-12 17:59:43,858 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 3.3548387096774195) internal successors, (104), 32 states have internal predecessors, (104), 16 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (31), 16 states have call predecessors, (31), 16 states have call successors, (31) [2024-09-12 17:59:43,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:43,858 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 931 transitions. [2024-09-12 17:59:43,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-09-12 17:59:43,860 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:43,860 INFO L216 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:43,876 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-09-12 17:59:44,064 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2024-09-12 17:59:44,065 INFO L399 AbstractCegarLoop]: === Iteration 54 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:44,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:44,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1978949438, now seen corresponding path program 2 times [2024-09-12 17:59:44,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:44,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599417663] [2024-09-12 17:59:44,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:44,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:44,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:44,190 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:44,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:44,191 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:44,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:44,193 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:44,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:44,194 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 17:59:44,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:44,195 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 17:59:44,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:44,196 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 17:59:44,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:44,198 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 17:59:44,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:44,199 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-09-12 17:59:44,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:44,200 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 17:59:44,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:44,202 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 17:59:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:44,203 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 17:59:44,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:44,204 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-12 17:59:44,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:44,205 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-09-12 17:59:44,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:44,206 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-09-12 17:59:44,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:44,207 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-09-12 17:59:44,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:44,208 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 17:59:44,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:44,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599417663] [2024-09-12 17:59:44,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599417663] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:44,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [276478560] [2024-09-12 17:59:44,208 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 17:59:44,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:44,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:44,210 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:44,210 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-09-12 17:59:44,255 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 17:59:44,256 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:44,256 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 17:59:44,258 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:44,329 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 17:59:44,329 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:44,568 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 17:59:44,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [276478560] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:44,569 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:44,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 31 [2024-09-12 17:59:44,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608190127] [2024-09-12 17:59:44,569 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:44,569 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-09-12 17:59:44,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:44,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-09-12 17:59:44,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=799, Unknown=0, NotChecked=0, Total=992 [2024-09-12 17:59:44,570 INFO L87 Difference]: Start difference. First operand 685 states and 931 transitions. Second operand has 32 states, 31 states have (on average 3.4193548387096775) internal successors, (106), 32 states have internal predecessors, (106), 16 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (31), 16 states have call predecessors, (31), 16 states have call successors, (31) [2024-09-12 17:59:44,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:44,948 INFO L93 Difference]: Finished difference Result 1022 states and 1414 transitions. [2024-09-12 17:59:44,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-09-12 17:59:44,949 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 3.4193548387096775) internal successors, (106), 32 states have internal predecessors, (106), 16 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (31), 16 states have call predecessors, (31), 16 states have call successors, (31) Word has length 121 [2024-09-12 17:59:44,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:44,953 INFO L225 Difference]: With dead ends: 1022 [2024-09-12 17:59:44,953 INFO L226 Difference]: Without dead ends: 1020 [2024-09-12 17:59:44,954 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=193, Invalid=799, Unknown=0, NotChecked=0, Total=992 [2024-09-12 17:59:44,954 INFO L434 NwaCegarLoop]: 38 mSDtfsCounter, 44 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:44,955 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 548 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:59:44,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2024-09-12 17:59:45,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 871. [2024-09-12 17:59:45,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 871 states, 629 states have (on average 1.1939586645468998) internal successors, (751), 658 states have internal predecessors, (751), 221 states have call successors, (221), 18 states have call predecessors, (221), 17 states have return successors, (220), 194 states have call predecessors, (220), 220 states have call successors, (220) [2024-09-12 17:59:45,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1192 transitions. [2024-09-12 17:59:45,100 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1192 transitions. Word has length 121 [2024-09-12 17:59:45,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:45,101 INFO L474 AbstractCegarLoop]: Abstraction has 871 states and 1192 transitions. [2024-09-12 17:59:45,101 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 3.4193548387096775) internal successors, (106), 32 states have internal predecessors, (106), 16 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (31), 16 states have call predecessors, (31), 16 states have call successors, (31) [2024-09-12 17:59:45,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:45,101 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1192 transitions. [2024-09-12 17:59:45,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-09-12 17:59:45,104 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:45,104 INFO L216 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:45,120 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:45,304 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2024-09-12 17:59:45,305 INFO L399 AbstractCegarLoop]: === Iteration 55 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:45,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:45,305 INFO L85 PathProgramCache]: Analyzing trace with hash -876411538, now seen corresponding path program 2 times [2024-09-12 17:59:45,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:45,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662180613] [2024-09-12 17:59:45,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:45,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:45,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:45,434 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:45,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:45,435 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:45,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:45,436 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:45,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:45,437 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 17:59:45,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:45,438 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 17:59:45,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:45,439 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 17:59:45,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:45,440 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 17:59:45,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:45,441 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 17:59:45,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:45,442 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 17:59:45,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:45,443 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 17:59:45,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:45,444 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 17:59:45,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:45,445 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 17:59:45,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:45,446 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 17:59:45,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:45,447 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-09-12 17:59:45,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:45,449 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-09-12 17:59:45,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:45,450 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 17:59:45,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:45,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662180613] [2024-09-12 17:59:45,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662180613] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:45,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537000552] [2024-09-12 17:59:45,451 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 17:59:45,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:45,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:45,453 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:45,454 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-09-12 17:59:45,500 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 17:59:45,500 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:45,501 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 17:59:45,503 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:45,585 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 17:59:45,585 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:45,882 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 17:59:45,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537000552] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:45,883 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:45,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 31 [2024-09-12 17:59:45,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626395227] [2024-09-12 17:59:45,883 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:45,884 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-09-12 17:59:45,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:45,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-09-12 17:59:45,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=797, Unknown=0, NotChecked=0, Total=992 [2024-09-12 17:59:45,885 INFO L87 Difference]: Start difference. First operand 871 states and 1192 transitions. Second operand has 32 states, 31 states have (on average 3.5483870967741935) internal successors, (110), 32 states have internal predecessors, (110), 16 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (31), 16 states have call predecessors, (31), 16 states have call successors, (31) [2024-09-12 17:59:46,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:46,234 INFO L93 Difference]: Finished difference Result 1111 states and 1536 transitions. [2024-09-12 17:59:46,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-09-12 17:59:46,235 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 3.5483870967741935) internal successors, (110), 32 states have internal predecessors, (110), 16 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (31), 16 states have call predecessors, (31), 16 states have call successors, (31) Word has length 123 [2024-09-12 17:59:46,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:46,239 INFO L225 Difference]: With dead ends: 1111 [2024-09-12 17:59:46,239 INFO L226 Difference]: Without dead ends: 1109 [2024-09-12 17:59:46,239 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=195, Invalid=797, Unknown=0, NotChecked=0, Total=992 [2024-09-12 17:59:46,239 INFO L434 NwaCegarLoop]: 38 mSDtfsCounter, 48 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:46,240 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 474 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:59:46,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2024-09-12 17:59:46,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 977. [2024-09-12 17:59:46,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 710 states have (on average 1.1971830985915493) internal successors, (850), 740 states have internal predecessors, (850), 246 states have call successors, (246), 18 states have call predecessors, (246), 17 states have return successors, (245), 218 states have call predecessors, (245), 245 states have call successors, (245) [2024-09-12 17:59:46,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1341 transitions. [2024-09-12 17:59:46,414 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1341 transitions. Word has length 123 [2024-09-12 17:59:46,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:46,414 INFO L474 AbstractCegarLoop]: Abstraction has 977 states and 1341 transitions. [2024-09-12 17:59:46,414 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 3.5483870967741935) internal successors, (110), 32 states have internal predecessors, (110), 16 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (31), 16 states have call predecessors, (31), 16 states have call successors, (31) [2024-09-12 17:59:46,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:46,415 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1341 transitions. [2024-09-12 17:59:46,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-09-12 17:59:46,418 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:46,418 INFO L216 NwaCegarLoop]: trace histogram [16, 16, 16, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:46,434 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-09-12 17:59:46,618 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,35 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:46,619 INFO L399 AbstractCegarLoop]: === Iteration 56 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:46,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:46,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1368456278, now seen corresponding path program 1 times [2024-09-12 17:59:46,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:46,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180924233] [2024-09-12 17:59:46,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:46,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:46,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:46,796 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:46,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:46,797 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:46,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:46,798 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:46,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:46,799 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 17:59:46,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:46,800 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 17:59:46,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:46,802 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 17:59:46,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:46,803 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 17:59:46,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:46,805 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-09-12 17:59:46,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:46,806 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 17:59:46,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:46,808 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 17:59:46,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:46,809 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 17:59:46,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:46,810 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-12 17:59:46,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:46,811 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-09-12 17:59:46,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:46,812 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 17:59:46,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:46,813 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-09-12 17:59:46,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:46,814 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-09-12 17:59:46,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:46,815 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-09-12 17:59:46,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:46,816 INFO L134 CoverageAnalysis]: Checked inductivity of 527 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-09-12 17:59:46,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:46,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180924233] [2024-09-12 17:59:46,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180924233] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:46,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938600285] [2024-09-12 17:59:46,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:46,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:46,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:46,818 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:46,818 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-09-12 17:59:46,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:46,866 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 17:59:46,867 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:46,936 INFO L134 CoverageAnalysis]: Checked inductivity of 527 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-09-12 17:59:46,936 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:47,217 INFO L134 CoverageAnalysis]: Checked inductivity of 527 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-09-12 17:59:47,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938600285] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:47,218 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:47,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 35 [2024-09-12 17:59:47,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146338684] [2024-09-12 17:59:47,218 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:47,219 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-09-12 17:59:47,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:47,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-09-12 17:59:47,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=1023, Unknown=0, NotChecked=0, Total=1260 [2024-09-12 17:59:47,220 INFO L87 Difference]: Start difference. First operand 977 states and 1341 transitions. Second operand has 36 states, 35 states have (on average 3.257142857142857) internal successors, (114), 36 states have internal predecessors, (114), 18 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (35), 18 states have call predecessors, (35), 18 states have call successors, (35) [2024-09-12 17:59:47,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:47,714 INFO L93 Difference]: Finished difference Result 1234 states and 1708 transitions. [2024-09-12 17:59:47,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-09-12 17:59:47,715 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 3.257142857142857) internal successors, (114), 36 states have internal predecessors, (114), 18 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (35), 18 states have call predecessors, (35), 18 states have call successors, (35) Word has length 135 [2024-09-12 17:59:47,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:47,721 INFO L225 Difference]: With dead ends: 1234 [2024-09-12 17:59:47,721 INFO L226 Difference]: Without dead ends: 1232 [2024-09-12 17:59:47,722 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=237, Invalid=1023, Unknown=0, NotChecked=0, Total=1260 [2024-09-12 17:59:47,722 INFO L434 NwaCegarLoop]: 38 mSDtfsCounter, 40 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:47,722 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 575 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:59:47,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1232 states. [2024-09-12 17:59:47,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1232 to 1048. [2024-09-12 17:59:47,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1048 states, 757 states have (on average 1.1955085865257595) internal successors, (905), 791 states have internal predecessors, (905), 270 states have call successors, (270), 18 states have call predecessors, (270), 17 states have return successors, (269), 238 states have call predecessors, (269), 269 states have call successors, (269) [2024-09-12 17:59:47,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1048 states to 1048 states and 1444 transitions. [2024-09-12 17:59:47,956 INFO L78 Accepts]: Start accepts. Automaton has 1048 states and 1444 transitions. Word has length 135 [2024-09-12 17:59:47,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:47,957 INFO L474 AbstractCegarLoop]: Abstraction has 1048 states and 1444 transitions. [2024-09-12 17:59:47,957 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 3.257142857142857) internal successors, (114), 36 states have internal predecessors, (114), 18 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (35), 18 states have call predecessors, (35), 18 states have call successors, (35) [2024-09-12 17:59:47,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:47,958 INFO L276 IsEmpty]: Start isEmpty. Operand 1048 states and 1444 transitions. [2024-09-12 17:59:47,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-09-12 17:59:47,961 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:47,961 INFO L216 NwaCegarLoop]: trace histogram [16, 16, 16, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:47,977 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:48,161 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2024-09-12 17:59:48,162 INFO L399 AbstractCegarLoop]: === Iteration 57 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:48,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:48,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1194635667, now seen corresponding path program 3 times [2024-09-12 17:59:48,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:48,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204967680] [2024-09-12 17:59:48,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:48,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:48,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:48,358 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:48,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:48,360 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:48,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:48,361 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:48,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:48,363 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 17:59:48,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:48,364 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 17:59:48,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:48,365 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 17:59:48,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:48,366 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 17:59:48,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:48,368 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 17:59:48,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:48,370 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 17:59:48,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:48,376 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-09-12 17:59:48,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:48,377 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-09-12 17:59:48,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:48,379 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-12 17:59:48,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:48,380 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-09-12 17:59:48,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:48,381 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-09-12 17:59:48,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:48,383 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-09-12 17:59:48,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:48,384 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 17:59:48,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:48,385 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-09-12 17:59:48,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:48,387 INFO L134 CoverageAnalysis]: Checked inductivity of 669 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-09-12 17:59:48,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:48,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204967680] [2024-09-12 17:59:48,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204967680] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:48,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16435635] [2024-09-12 17:59:48,387 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 17:59:48,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:48,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:48,389 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:48,390 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-09-12 17:59:48,427 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 17:59:48,428 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:48,429 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 17:59:48,432 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:48,605 INFO L134 CoverageAnalysis]: Checked inductivity of 669 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2024-09-12 17:59:48,605 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 17:59:48,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [16435635] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:48,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 17:59:48,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [17] total 24 [2024-09-12 17:59:48,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456837305] [2024-09-12 17:59:48,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:48,606 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 17:59:48,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:48,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 17:59:48,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=492, Unknown=0, NotChecked=0, Total=600 [2024-09-12 17:59:48,607 INFO L87 Difference]: Start difference. First operand 1048 states and 1444 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 17:59:48,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:48,898 INFO L93 Difference]: Finished difference Result 1048 states and 1444 transitions. [2024-09-12 17:59:48,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 17:59:48,899 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 136 [2024-09-12 17:59:48,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:48,905 INFO L225 Difference]: With dead ends: 1048 [2024-09-12 17:59:48,905 INFO L226 Difference]: Without dead ends: 1047 [2024-09-12 17:59:48,905 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=681, Unknown=0, NotChecked=0, Total=812 [2024-09-12 17:59:48,906 INFO L434 NwaCegarLoop]: 32 mSDtfsCounter, 46 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:48,906 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 158 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:48,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2024-09-12 17:59:49,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1047. [2024-09-12 17:59:49,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1047 states, 757 states have (on average 1.1941875825627477) internal successors, (904), 790 states have internal predecessors, (904), 270 states have call successors, (270), 18 states have call predecessors, (270), 17 states have return successors, (269), 238 states have call predecessors, (269), 269 states have call successors, (269) [2024-09-12 17:59:49,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1047 states to 1047 states and 1443 transitions. [2024-09-12 17:59:49,148 INFO L78 Accepts]: Start accepts. Automaton has 1047 states and 1443 transitions. Word has length 136 [2024-09-12 17:59:49,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:49,148 INFO L474 AbstractCegarLoop]: Abstraction has 1047 states and 1443 transitions. [2024-09-12 17:59:49,148 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 17:59:49,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:49,148 INFO L276 IsEmpty]: Start isEmpty. Operand 1047 states and 1443 transitions. [2024-09-12 17:59:49,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-09-12 17:59:49,151 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:49,152 INFO L216 NwaCegarLoop]: trace histogram [16, 16, 16, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:49,168 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:49,352 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,37 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:49,352 INFO L399 AbstractCegarLoop]: === Iteration 58 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:49,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:49,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1664247471, now seen corresponding path program 2 times [2024-09-12 17:59:49,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:49,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247208380] [2024-09-12 17:59:49,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:49,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:49,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:49,532 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:49,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:49,533 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:49,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:49,534 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:49,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:49,535 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 17:59:49,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:49,536 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 17:59:49,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:49,537 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-09-12 17:59:49,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:49,538 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 17:59:49,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:49,539 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 17:59:49,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:49,540 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 17:59:49,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:49,541 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 17:59:49,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:49,542 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 17:59:49,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:49,543 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 17:59:49,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:49,545 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 17:59:49,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:49,546 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-09-12 17:59:49,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:49,547 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-09-12 17:59:49,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:49,549 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-09-12 17:59:49,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:49,550 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-09-12 17:59:49,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:49,552 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 0 proven. 115 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-09-12 17:59:49,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:49,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247208380] [2024-09-12 17:59:49,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247208380] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:49,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1084112418] [2024-09-12 17:59:49,552 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 17:59:49,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:49,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:49,553 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:49,554 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-09-12 17:59:49,610 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 17:59:49,610 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:49,612 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 17:59:49,613 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:49,692 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 0 proven. 115 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-09-12 17:59:49,692 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:50,021 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 0 proven. 115 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-09-12 17:59:50,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1084112418] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:50,021 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:50,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 35 [2024-09-12 17:59:50,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108335886] [2024-09-12 17:59:50,022 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:50,022 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-09-12 17:59:50,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:50,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-09-12 17:59:50,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=259, Invalid=1001, Unknown=0, NotChecked=0, Total=1260 [2024-09-12 17:59:50,023 INFO L87 Difference]: Start difference. First operand 1047 states and 1443 transitions. Second operand has 36 states, 35 states have (on average 3.5428571428571427) internal successors, (124), 36 states have internal predecessors, (124), 18 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (35), 18 states have call predecessors, (35), 18 states have call successors, (35) [2024-09-12 17:59:50,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:50,543 INFO L93 Difference]: Finished difference Result 1608 states and 2251 transitions. [2024-09-12 17:59:50,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-09-12 17:59:50,544 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 3.5428571428571427) internal successors, (124), 36 states have internal predecessors, (124), 18 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (35), 18 states have call predecessors, (35), 18 states have call successors, (35) Word has length 140 [2024-09-12 17:59:50,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:50,551 INFO L225 Difference]: With dead ends: 1608 [2024-09-12 17:59:50,551 INFO L226 Difference]: Without dead ends: 1606 [2024-09-12 17:59:50,552 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=259, Invalid=1001, Unknown=0, NotChecked=0, Total=1260 [2024-09-12 17:59:50,553 INFO L434 NwaCegarLoop]: 39 mSDtfsCounter, 83 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:50,553 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 349 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:59:50,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2024-09-12 17:59:50,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1381. [2024-09-12 17:59:50,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1381 states, 1018 states have (on average 1.2033398821218075) internal successors, (1225), 1048 states have internal predecessors, (1225), 343 states have call successors, (343), 18 states have call predecessors, (343), 17 states have return successors, (342), 314 states have call predecessors, (342), 342 states have call successors, (342) [2024-09-12 17:59:50,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1381 states to 1381 states and 1910 transitions. [2024-09-12 17:59:50,811 INFO L78 Accepts]: Start accepts. Automaton has 1381 states and 1910 transitions. Word has length 140 [2024-09-12 17:59:50,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:50,811 INFO L474 AbstractCegarLoop]: Abstraction has 1381 states and 1910 transitions. [2024-09-12 17:59:50,812 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 3.5428571428571427) internal successors, (124), 36 states have internal predecessors, (124), 18 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (35), 18 states have call predecessors, (35), 18 states have call successors, (35) [2024-09-12 17:59:50,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:50,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1381 states and 1910 transitions. [2024-09-12 17:59:50,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-09-12 17:59:50,817 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:50,817 INFO L216 NwaCegarLoop]: trace histogram [18, 18, 18, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:50,833 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:51,018 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2024-09-12 17:59:51,020 INFO L399 AbstractCegarLoop]: === Iteration 59 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:51,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:51,020 INFO L85 PathProgramCache]: Analyzing trace with hash 417075890, now seen corresponding path program 2 times [2024-09-12 17:59:51,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:51,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599490855] [2024-09-12 17:59:51,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:51,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:51,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:51,262 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:51,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:51,264 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:51,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:51,265 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:51,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:51,266 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 17:59:51,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:51,268 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 17:59:51,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:51,274 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-09-12 17:59:51,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:51,276 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 17:59:51,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:51,278 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 17:59:51,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:51,280 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 17:59:51,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:51,281 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-09-12 17:59:51,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:51,283 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 17:59:51,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:51,284 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-09-12 17:59:51,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:51,285 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 17:59:51,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:51,287 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 17:59:51,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:51,288 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 17:59:51,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:51,289 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-09-12 17:59:51,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:51,290 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-09-12 17:59:51,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:51,292 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-09-12 17:59:51,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:51,293 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 17:59:51,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:51,294 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 17:59:51,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:51,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599490855] [2024-09-12 17:59:51,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599490855] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:51,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1752825223] [2024-09-12 17:59:51,295 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 17:59:51,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:51,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:51,297 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:51,299 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-09-12 17:59:51,351 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 17:59:51,351 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:51,352 INFO L262 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 17:59:51,353 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:51,445 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 17:59:51,445 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:51,766 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 17:59:51,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1752825223] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:51,767 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:51,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 39 [2024-09-12 17:59:51,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157535233] [2024-09-12 17:59:51,767 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:51,768 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-09-12 17:59:51,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:51,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-09-12 17:59:51,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=311, Invalid=1249, Unknown=0, NotChecked=0, Total=1560 [2024-09-12 17:59:51,769 INFO L87 Difference]: Start difference. First operand 1381 states and 1910 transitions. Second operand has 40 states, 39 states have (on average 3.230769230769231) internal successors, (126), 40 states have internal predecessors, (126), 20 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (39), 20 states have call predecessors, (39), 20 states have call successors, (39) [2024-09-12 17:59:52,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:52,319 INFO L93 Difference]: Finished difference Result 1854 states and 2596 transitions. [2024-09-12 17:59:52,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-09-12 17:59:52,319 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 3.230769230769231) internal successors, (126), 40 states have internal predecessors, (126), 20 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (39), 20 states have call predecessors, (39), 20 states have call successors, (39) Word has length 151 [2024-09-12 17:59:52,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:52,327 INFO L225 Difference]: With dead ends: 1854 [2024-09-12 17:59:52,327 INFO L226 Difference]: Without dead ends: 1852 [2024-09-12 17:59:52,328 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 320 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=311, Invalid=1249, Unknown=0, NotChecked=0, Total=1560 [2024-09-12 17:59:52,328 INFO L434 NwaCegarLoop]: 39 mSDtfsCounter, 74 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:52,328 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 621 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:59:52,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1852 states. [2024-09-12 17:59:52,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1852 to 1438. [2024-09-12 17:59:52,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1438 states, 1046 states have (on average 1.1998087954110899) internal successors, (1255), 1087 states have internal predecessors, (1255), 372 states have call successors, (372), 18 states have call predecessors, (372), 17 states have return successors, (371), 332 states have call predecessors, (371), 371 states have call successors, (371) [2024-09-12 17:59:52,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1438 states to 1438 states and 1998 transitions. [2024-09-12 17:59:52,613 INFO L78 Accepts]: Start accepts. Automaton has 1438 states and 1998 transitions. Word has length 151 [2024-09-12 17:59:52,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:52,613 INFO L474 AbstractCegarLoop]: Abstraction has 1438 states and 1998 transitions. [2024-09-12 17:59:52,614 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 3.230769230769231) internal successors, (126), 40 states have internal predecessors, (126), 20 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (39), 20 states have call predecessors, (39), 20 states have call successors, (39) [2024-09-12 17:59:52,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:52,614 INFO L276 IsEmpty]: Start isEmpty. Operand 1438 states and 1998 transitions. [2024-09-12 17:59:52,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-09-12 17:59:52,619 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:52,619 INFO L216 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:52,636 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2024-09-12 17:59:52,819 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2024-09-12 17:59:52,820 INFO L399 AbstractCegarLoop]: === Iteration 60 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:52,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:52,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1271242679, now seen corresponding path program 3 times [2024-09-12 17:59:52,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:52,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850270806] [2024-09-12 17:59:52,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:52,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:52,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:53,060 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:53,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:53,063 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:53,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:53,064 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:53,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:53,065 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 17:59:53,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:53,067 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 17:59:53,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:53,068 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 17:59:53,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:53,069 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 17:59:53,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:53,070 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 17:59:53,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:53,072 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 17:59:53,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:53,073 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 17:59:53,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:53,074 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 17:59:53,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:53,076 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-09-12 17:59:53,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:53,077 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 17:59:53,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:53,078 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-09-12 17:59:53,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:53,079 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-09-12 17:59:53,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:53,081 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-09-12 17:59:53,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:53,082 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-09-12 17:59:53,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:53,084 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-09-12 17:59:53,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:53,085 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 17:59:53,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:53,087 INFO L134 CoverageAnalysis]: Checked inductivity of 678 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 17:59:53,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:53,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850270806] [2024-09-12 17:59:53,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850270806] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:53,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2147451151] [2024-09-12 17:59:53,088 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 17:59:53,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:53,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:53,090 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:53,092 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-09-12 17:59:53,134 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 17:59:53,134 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:53,136 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 17:59:53,139 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:53,274 INFO L134 CoverageAnalysis]: Checked inductivity of 678 backedges. 51 proven. 6 refuted. 0 times theorem prover too weak. 621 trivial. 0 not checked. [2024-09-12 17:59:53,274 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:53,462 INFO L134 CoverageAnalysis]: Checked inductivity of 678 backedges. 51 proven. 6 refuted. 0 times theorem prover too weak. 621 trivial. 0 not checked. [2024-09-12 17:59:53,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2147451151] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:53,463 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:53,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 7, 7] total 26 [2024-09-12 17:59:53,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964104039] [2024-09-12 17:59:53,463 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:53,463 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-09-12 17:59:53,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:53,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-09-12 17:59:53,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=593, Unknown=0, NotChecked=0, Total=702 [2024-09-12 17:59:53,464 INFO L87 Difference]: Start difference. First operand 1438 states and 1998 transitions. Second operand has 27 states, 26 states have (on average 3.6538461538461537) internal successors, (95), 26 states have internal predecessors, (95), 11 states have call successors, (28), 1 states have call predecessors, (28), 2 states have return successors, (28), 12 states have call predecessors, (28), 11 states have call successors, (28) [2024-09-12 17:59:54,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:54,263 INFO L93 Difference]: Finished difference Result 1610 states and 2254 transitions. [2024-09-12 17:59:54,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-09-12 17:59:54,264 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 3.6538461538461537) internal successors, (95), 26 states have internal predecessors, (95), 11 states have call successors, (28), 1 states have call predecessors, (28), 2 states have return successors, (28), 12 states have call predecessors, (28), 11 states have call successors, (28) Word has length 151 [2024-09-12 17:59:54,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:54,273 INFO L225 Difference]: With dead ends: 1610 [2024-09-12 17:59:54,273 INFO L226 Difference]: Without dead ends: 1609 [2024-09-12 17:59:54,274 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 330 SyntacticMatches, 3 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 432 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=338, Invalid=2014, Unknown=0, NotChecked=0, Total=2352 [2024-09-12 17:59:54,275 INFO L434 NwaCegarLoop]: 24 mSDtfsCounter, 35 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:54,275 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 344 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:59:54,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1609 states. [2024-09-12 17:59:54,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1609 to 958. [2024-09-12 17:59:54,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 958 states, 698 states have (on average 1.1962750716332378) internal successors, (835), 726 states have internal predecessors, (835), 241 states have call successors, (241), 18 states have call predecessors, (241), 17 states have return successors, (240), 213 states have call predecessors, (240), 240 states have call successors, (240) [2024-09-12 17:59:54,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 1316 transitions. [2024-09-12 17:59:54,547 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 1316 transitions. Word has length 151 [2024-09-12 17:59:54,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:54,548 INFO L474 AbstractCegarLoop]: Abstraction has 958 states and 1316 transitions. [2024-09-12 17:59:54,548 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 3.6538461538461537) internal successors, (95), 26 states have internal predecessors, (95), 11 states have call successors, (28), 1 states have call predecessors, (28), 2 states have return successors, (28), 12 states have call predecessors, (28), 11 states have call successors, (28) [2024-09-12 17:59:54,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:54,548 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 1316 transitions. [2024-09-12 17:59:54,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-09-12 17:59:54,551 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:54,551 INFO L216 NwaCegarLoop]: trace histogram [18, 18, 18, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:54,567 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:54,752 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2024-09-12 17:59:54,752 INFO L399 AbstractCegarLoop]: === Iteration 61 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:54,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:54,753 INFO L85 PathProgramCache]: Analyzing trace with hash -615215401, now seen corresponding path program 2 times [2024-09-12 17:59:54,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:54,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752159348] [2024-09-12 17:59:54,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:54,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:54,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:54,980 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:54,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:54,982 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:54,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:54,983 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:54,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:54,984 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 17:59:54,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:54,986 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 17:59:54,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:54,987 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 17:59:54,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:54,989 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 17:59:54,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:54,990 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 17:59:54,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:54,991 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 17:59:54,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:54,993 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-09-12 17:59:54,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:54,994 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-09-12 17:59:54,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:54,995 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-12 17:59:54,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:54,996 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-09-12 17:59:54,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:54,997 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-09-12 17:59:54,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:54,999 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-09-12 17:59:54,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:55,000 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-09-12 17:59:55,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:55,001 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-09-12 17:59:55,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:55,002 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-09-12 17:59:55,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:55,004 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-09-12 17:59:55,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:55,006 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 104 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 17:59:55,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:55,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752159348] [2024-09-12 17:59:55,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752159348] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:55,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [839759728] [2024-09-12 17:59:55,007 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 17:59:55,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:55,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:55,009 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:55,011 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-09-12 17:59:55,073 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 17:59:55,073 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:55,075 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 17:59:55,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:55,176 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 104 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 17:59:55,177 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:55,521 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 104 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 17:59:55,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [839759728] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:55,521 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:55,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 39 [2024-09-12 17:59:55,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669752283] [2024-09-12 17:59:55,522 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:55,523 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-09-12 17:59:55,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:55,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-09-12 17:59:55,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=311, Invalid=1249, Unknown=0, NotChecked=0, Total=1560 [2024-09-12 17:59:55,524 INFO L87 Difference]: Start difference. First operand 958 states and 1316 transitions. Second operand has 40 states, 39 states have (on average 3.282051282051282) internal successors, (128), 40 states have internal predecessors, (128), 20 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (39), 20 states have call predecessors, (39), 20 states have call successors, (39) [2024-09-12 17:59:56,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:56,016 INFO L93 Difference]: Finished difference Result 1230 states and 1704 transitions. [2024-09-12 17:59:56,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-09-12 17:59:56,017 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 3.282051282051282) internal successors, (128), 40 states have internal predecessors, (128), 20 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (39), 20 states have call predecessors, (39), 20 states have call successors, (39) Word has length 152 [2024-09-12 17:59:56,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:56,024 INFO L225 Difference]: With dead ends: 1230 [2024-09-12 17:59:56,024 INFO L226 Difference]: Without dead ends: 1229 [2024-09-12 17:59:56,025 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 322 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=311, Invalid=1249, Unknown=0, NotChecked=0, Total=1560 [2024-09-12 17:59:56,025 INFO L434 NwaCegarLoop]: 36 mSDtfsCounter, 46 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:56,025 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 542 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:59:56,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2024-09-12 17:59:56,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 972. [2024-09-12 17:59:56,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 972 states, 707 states have (on average 1.1966053748231966) internal successors, (846), 737 states have internal predecessors, (846), 246 states have call successors, (246), 18 states have call predecessors, (246), 17 states have return successors, (245), 216 states have call predecessors, (245), 245 states have call successors, (245) [2024-09-12 17:59:56,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 1337 transitions. [2024-09-12 17:59:56,221 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 1337 transitions. Word has length 152 [2024-09-12 17:59:56,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:56,221 INFO L474 AbstractCegarLoop]: Abstraction has 972 states and 1337 transitions. [2024-09-12 17:59:56,222 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 3.282051282051282) internal successors, (128), 40 states have internal predecessors, (128), 20 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (39), 20 states have call predecessors, (39), 20 states have call successors, (39) [2024-09-12 17:59:56,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:56,222 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 1337 transitions. [2024-09-12 17:59:56,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-09-12 17:59:56,224 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:56,224 INFO L216 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:56,235 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:56,424 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,41 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:56,425 INFO L399 AbstractCegarLoop]: === Iteration 62 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:56,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:56,425 INFO L85 PathProgramCache]: Analyzing trace with hash -286954745, now seen corresponding path program 2 times [2024-09-12 17:59:56,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:56,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578139024] [2024-09-12 17:59:56,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:56,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:56,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:56,667 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:56,669 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:56,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:56,670 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:56,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:56,671 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 17:59:56,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:56,673 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 17:59:56,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:56,674 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 17:59:56,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:56,675 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 17:59:56,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:56,677 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 17:59:56,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:56,678 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 17:59:56,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:56,679 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 17:59:56,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:56,681 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 17:59:56,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:56,682 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-09-12 17:59:56,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:56,684 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 17:59:56,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:56,685 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-09-12 17:59:56,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:56,686 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-09-12 17:59:56,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:56,688 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-09-12 17:59:56,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:56,689 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 17:59:56,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:56,690 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-09-12 17:59:56,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:56,691 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 17:59:56,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:56,693 INFO L134 CoverageAnalysis]: Checked inductivity of 689 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 17:59:56,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:56,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578139024] [2024-09-12 17:59:56,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578139024] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:56,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031519675] [2024-09-12 17:59:56,694 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 17:59:56,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:56,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:56,696 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:56,700 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-09-12 17:59:56,779 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 17:59:56,779 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:56,784 INFO L262 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 17:59:56,787 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:56,865 INFO L134 CoverageAnalysis]: Checked inductivity of 689 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 17:59:56,865 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:57,218 INFO L134 CoverageAnalysis]: Checked inductivity of 689 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 17:59:57,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031519675] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:57,219 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:57,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 39 [2024-09-12 17:59:57,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026047556] [2024-09-12 17:59:57,219 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:57,219 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-09-12 17:59:57,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:57,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-09-12 17:59:57,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=291, Invalid=1269, Unknown=0, NotChecked=0, Total=1560 [2024-09-12 17:59:57,221 INFO L87 Difference]: Start difference. First operand 972 states and 1337 transitions. Second operand has 40 states, 39 states have (on average 3.3846153846153846) internal successors, (132), 40 states have internal predecessors, (132), 20 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (39), 20 states have call predecessors, (39), 20 states have call successors, (39) [2024-09-12 17:59:57,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:57,899 INFO L93 Difference]: Finished difference Result 1679 states and 2344 transitions. [2024-09-12 17:59:57,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-09-12 17:59:57,900 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 3.3846153846153846) internal successors, (132), 40 states have internal predecessors, (132), 20 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (39), 20 states have call predecessors, (39), 20 states have call successors, (39) Word has length 154 [2024-09-12 17:59:57,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:57,908 INFO L225 Difference]: With dead ends: 1679 [2024-09-12 17:59:57,908 INFO L226 Difference]: Without dead ends: 1678 [2024-09-12 17:59:57,909 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 493 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=291, Invalid=1269, Unknown=0, NotChecked=0, Total=1560 [2024-09-12 17:59:57,910 INFO L434 NwaCegarLoop]: 36 mSDtfsCounter, 68 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:57,910 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 539 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:59:57,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1678 states. [2024-09-12 17:59:58,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1678 to 1081. [2024-09-12 17:59:58,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1081 states, 788 states have (on average 1.1967005076142132) internal successors, (943), 819 states have internal predecessors, (943), 274 states have call successors, (274), 18 states have call predecessors, (274), 17 states have return successors, (273), 243 states have call predecessors, (273), 273 states have call successors, (273) [2024-09-12 17:59:58,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1081 states to 1081 states and 1490 transitions. [2024-09-12 17:59:58,302 INFO L78 Accepts]: Start accepts. Automaton has 1081 states and 1490 transitions. Word has length 154 [2024-09-12 17:59:58,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:58,302 INFO L474 AbstractCegarLoop]: Abstraction has 1081 states and 1490 transitions. [2024-09-12 17:59:58,303 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 3.3846153846153846) internal successors, (132), 40 states have internal predecessors, (132), 20 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (39), 20 states have call predecessors, (39), 20 states have call successors, (39) [2024-09-12 17:59:58,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:58,303 INFO L276 IsEmpty]: Start isEmpty. Operand 1081 states and 1490 transitions. [2024-09-12 17:59:58,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-09-12 17:59:58,306 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:58,306 INFO L216 NwaCegarLoop]: trace histogram [20, 20, 20, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:58,322 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:58,507 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,42 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:58,507 INFO L399 AbstractCegarLoop]: === Iteration 63 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 17:59:58,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:58,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1341005546, now seen corresponding path program 3 times [2024-09-12 17:59:58,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:58,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468639969] [2024-09-12 17:59:58,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:58,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:58,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:58,776 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:58,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:58,778 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 17:59:58,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:58,779 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 17:59:58,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:58,781 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 17:59:58,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:58,782 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 17:59:58,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:58,783 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 17:59:58,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:58,785 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 17:59:58,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:58,786 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 17:59:58,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:58,788 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 17:59:58,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:58,789 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 17:59:58,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:58,790 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 17:59:58,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:58,792 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 17:59:58,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:58,793 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 17:59:58,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:58,795 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-09-12 17:59:58,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:58,796 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-09-12 17:59:58,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:58,798 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-09-12 17:59:58,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:58,799 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 17:59:58,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:58,800 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-09-12 17:59:58,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:58,802 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 17:59:58,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:58,803 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-09-12 17:59:58,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:58,804 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-09-12 17:59:58,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:58,806 INFO L134 CoverageAnalysis]: Checked inductivity of 848 backedges. 0 proven. 88 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-09-12 17:59:58,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:58,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468639969] [2024-09-12 17:59:58,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468639969] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:58,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232217593] [2024-09-12 17:59:58,808 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 17:59:58,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:58,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:58,810 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:58,811 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-09-12 17:59:58,852 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 17:59:58,853 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:58,854 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 17:59:58,856 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:59,025 INFO L134 CoverageAnalysis]: Checked inductivity of 848 backedges. 57 proven. 6 refuted. 0 times theorem prover too weak. 785 trivial. 0 not checked. [2024-09-12 17:59:59,025 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:59,215 INFO L134 CoverageAnalysis]: Checked inductivity of 848 backedges. 57 proven. 6 refuted. 0 times theorem prover too weak. 785 trivial. 0 not checked. [2024-09-12 17:59:59,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [232217593] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:59,215 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:59,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 7, 7] total 28 [2024-09-12 17:59:59,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754459830] [2024-09-12 17:59:59,216 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:59,216 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-09-12 17:59:59,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:59,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-09-12 17:59:59,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=687, Unknown=0, NotChecked=0, Total=812 [2024-09-12 17:59:59,217 INFO L87 Difference]: Start difference. First operand 1081 states and 1490 transitions. Second operand has 29 states, 28 states have (on average 3.642857142857143) internal successors, (102), 28 states have internal predecessors, (102), 12 states have call successors, (30), 1 states have call predecessors, (30), 2 states have return successors, (30), 13 states have call predecessors, (30), 12 states have call successors, (30) [2024-09-12 18:00:00,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:00:00,006 INFO L93 Difference]: Finished difference Result 1275 states and 1768 transitions. [2024-09-12 18:00:00,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-09-12 18:00:00,006 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.642857142857143) internal successors, (102), 28 states have internal predecessors, (102), 12 states have call successors, (30), 1 states have call predecessors, (30), 2 states have return successors, (30), 13 states have call predecessors, (30), 12 states have call successors, (30) Word has length 168 [2024-09-12 18:00:00,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:00:00,008 INFO L225 Difference]: With dead ends: 1275 [2024-09-12 18:00:00,008 INFO L226 Difference]: Without dead ends: 145 [2024-09-12 18:00:00,012 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 422 GetRequests, 368 SyntacticMatches, 3 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 518 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=389, Invalid=2367, Unknown=0, NotChecked=0, Total=2756 [2024-09-12 18:00:00,012 INFO L434 NwaCegarLoop]: 23 mSDtfsCounter, 60 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:00:00,012 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 327 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:00:00,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-09-12 18:00:00,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2024-09-12 18:00:00,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 107 states have (on average 1.0093457943925233) internal successors, (108), 107 states have internal predecessors, (108), 32 states have call successors, (32), 6 states have call predecessors, (32), 5 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-09-12 18:00:00,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 171 transitions. [2024-09-12 18:00:00,034 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 171 transitions. Word has length 168 [2024-09-12 18:00:00,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:00:00,035 INFO L474 AbstractCegarLoop]: Abstraction has 145 states and 171 transitions. [2024-09-12 18:00:00,035 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.642857142857143) internal successors, (102), 28 states have internal predecessors, (102), 12 states have call successors, (30), 1 states have call predecessors, (30), 2 states have return successors, (30), 13 states have call predecessors, (30), 12 states have call successors, (30) [2024-09-12 18:00:00,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:00,035 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 171 transitions. [2024-09-12 18:00:00,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2024-09-12 18:00:00,036 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:00:00,036 INFO L216 NwaCegarLoop]: trace histogram [30, 30, 30, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:00:00,052 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2024-09-12 18:00:00,237 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,43 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:00,237 INFO L399 AbstractCegarLoop]: === Iteration 64 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:00:00,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:00,238 INFO L85 PathProgramCache]: Analyzing trace with hash 718535359, now seen corresponding path program 3 times [2024-09-12 18:00:00,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:00:00,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762863611] [2024-09-12 18:00:00,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:00:00,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:00:00,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,731 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:00:00,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,732 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:00:00,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,733 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:00:00,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,734 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 18:00:00,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,735 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 18:00:00,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,737 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 18:00:00,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,738 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 18:00:00,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,739 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:00:00,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,740 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:00:00,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,742 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-09-12 18:00:00,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,743 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-09-12 18:00:00,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,744 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-12 18:00:00,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,746 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-09-12 18:00:00,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,747 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-09-12 18:00:00,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,748 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-09-12 18:00:00,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,749 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 18:00:00,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,751 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-09-12 18:00:00,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,752 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-09-12 18:00:00,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,753 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-09-12 18:00:00,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,754 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-09-12 18:00:00,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,754 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-09-12 18:00:00,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,755 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-09-12 18:00:00,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,756 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-09-12 18:00:00,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,757 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-09-12 18:00:00,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,758 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-09-12 18:00:00,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,760 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-09-12 18:00:00,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,761 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-09-12 18:00:00,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,763 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-09-12 18:00:00,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,764 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-09-12 18:00:00,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,765 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2024-09-12 18:00:00,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,767 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-09-12 18:00:00,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,769 INFO L134 CoverageAnalysis]: Checked inductivity of 2580 backedges. 0 proven. 840 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2024-09-12 18:00:00,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:00:00,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762863611] [2024-09-12 18:00:00,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762863611] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:00:00,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1898612958] [2024-09-12 18:00:00,769 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:00:00,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:00,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:00:00,772 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:00:00,774 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-09-12 18:00:00,822 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 18:00:00,822 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:00:00,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 18:00:00,826 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:00:01,030 INFO L134 CoverageAnalysis]: Checked inductivity of 2580 backedges. 129 proven. 42 refuted. 0 times theorem prover too weak. 2409 trivial. 0 not checked. [2024-09-12 18:00:01,031 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:00:01,347 INFO L134 CoverageAnalysis]: Checked inductivity of 2580 backedges. 87 proven. 84 refuted. 0 times theorem prover too weak. 2409 trivial. 0 not checked. [2024-09-12 18:00:01,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1898612958] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:00:01,348 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:00:01,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 8, 8] total 43 [2024-09-12 18:00:01,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645733196] [2024-09-12 18:00:01,348 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:00:01,349 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-09-12 18:00:01,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:00:01,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-09-12 18:00:01,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=384, Invalid=1508, Unknown=0, NotChecked=0, Total=1892 [2024-09-12 18:00:01,356 INFO L87 Difference]: Start difference. First operand 145 states and 171 transitions. Second operand has 44 states, 43 states have (on average 3.0930232558139537) internal successors, (133), 42 states have internal predecessors, (133), 20 states have call successors, (40), 1 states have call predecessors, (40), 2 states have return successors, (39), 22 states have call predecessors, (39), 20 states have call successors, (39) [2024-09-12 18:00:02,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:00:02,311 INFO L93 Difference]: Finished difference Result 158 states and 189 transitions. [2024-09-12 18:00:02,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-09-12 18:00:02,311 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 3.0930232558139537) internal successors, (133), 42 states have internal predecessors, (133), 20 states have call successors, (40), 1 states have call predecessors, (40), 2 states have return successors, (39), 22 states have call predecessors, (39), 20 states have call successors, (39) Word has length 248 [2024-09-12 18:00:02,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:00:02,312 INFO L225 Difference]: With dead ends: 158 [2024-09-12 18:00:02,312 INFO L226 Difference]: Without dead ends: 0 [2024-09-12 18:00:02,315 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 640 GetRequests, 545 SyntacticMatches, 1 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1981 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1733, Invalid=7387, Unknown=0, NotChecked=0, Total=9120 [2024-09-12 18:00:02,315 INFO L434 NwaCegarLoop]: 9 mSDtfsCounter, 7 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:00:02,316 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 97 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:00:02,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-12 18:00:02,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-12 18:00:02,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-12 18:00:02,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-12 18:00:02,317 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 248 [2024-09-12 18:00:02,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:00:02,317 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-12 18:00:02,317 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 3.0930232558139537) internal successors, (133), 42 states have internal predecessors, (133), 20 states have call successors, (40), 1 states have call predecessors, (40), 2 states have return successors, (39), 22 states have call predecessors, (39), 20 states have call successors, (39) [2024-09-12 18:00:02,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:02,318 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-12 18:00:02,318 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-12 18:00:02,320 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 11 remaining) [2024-09-12 18:00:02,320 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 11 remaining) [2024-09-12 18:00:02,321 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 11 remaining) [2024-09-12 18:00:02,321 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 11 remaining) [2024-09-12 18:00:02,321 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 11 remaining) [2024-09-12 18:00:02,321 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 11 remaining) [2024-09-12 18:00:02,321 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 11 remaining) [2024-09-12 18:00:02,321 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 11 remaining) [2024-09-12 18:00:02,321 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 11 remaining) [2024-09-12 18:00:02,321 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 11 remaining) [2024-09-12 18:00:02,321 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 11 remaining) [2024-09-12 18:00:02,332 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2024-09-12 18:00:02,521 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,44 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:02,524 INFO L408 BasicCegarLoop]: Path program histogram: [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:00:02,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-09-12 18:00:20,198 WARN L293 SmtUtils]: Spent 17.65s on a formula simplification. DAG size of input: 482 DAG size of output: 269 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-09-12 18:00:53,716 WARN L293 SmtUtils]: Spent 33.51s on a formula simplification. DAG size of input: 387 DAG size of output: 184 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or)