./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-invgen/sendmail-close-angle.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/sendmail-close-angle.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 4be4b344509b887bc91f2389f98de1e4ff745494aee0f078864fd49e79b0b4b8 --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-12 18:01:14,286 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 18:01:14,359 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 18:01:14,367 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 18:01:14,368 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 18:01:14,404 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 18:01:14,406 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 18:01:14,406 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 18:01:14,407 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 18:01:14,407 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 18:01:14,408 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 18:01:14,408 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 18:01:14,411 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 18:01:14,411 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 18:01:14,412 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 18:01:14,412 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 18:01:14,412 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 18:01:14,413 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 18:01:14,413 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 18:01:14,413 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 18:01:14,414 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 18:01:14,417 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 18:01:14,417 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 18:01:14,418 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 18:01:14,418 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 18:01:14,419 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 18:01:14,419 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 18:01:14,419 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 18:01:14,419 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 18:01:14,420 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 18:01:14,420 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 18:01:14,420 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 18:01:14,421 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:01:14,421 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 18:01:14,421 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 18:01:14,422 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 18:01:14,422 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 18:01:14,422 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 18:01:14,423 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 18:01:14,423 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 18:01:14,423 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 18:01:14,424 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 18:01:14,424 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4be4b344509b887bc91f2389f98de1e4ff745494aee0f078864fd49e79b0b4b8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 18:01:14,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 18:01:14,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 18:01:14,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 18:01:14,762 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 18:01:14,762 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 18:01:14,763 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loop-invgen/sendmail-close-angle.i [2024-09-12 18:01:16,338 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 18:01:16,576 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 18:01:16,577 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/sendmail-close-angle.i [2024-09-12 18:01:16,584 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/8aee2dbda/ff0b989a5b4244699e9cd1237c09b966/FLAG81489103b [2024-09-12 18:01:16,596 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/8aee2dbda/ff0b989a5b4244699e9cd1237c09b966 [2024-09-12 18:01:16,598 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 18:01:16,600 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 18:01:16,602 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 18:01:16,602 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 18:01:16,608 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 18:01:16,609 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:01:16" (1/1) ... [2024-09-12 18:01:16,609 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ff02994 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:01:16, skipping insertion in model container [2024-09-12 18:01:16,610 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:01:16" (1/1) ... [2024-09-12 18:01:16,628 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 18:01:16,776 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/sendmail-close-angle.i[893,906] [2024-09-12 18:01:16,797 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:01:16,806 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 18:01:16,826 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/sendmail-close-angle.i[893,906] [2024-09-12 18:01:16,834 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:01:16,855 INFO L204 MainTranslator]: Completed translation [2024-09-12 18:01:16,856 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:01:16 WrapperNode [2024-09-12 18:01:16,856 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 18:01:16,857 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 18:01:16,857 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 18:01:16,858 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 18:01:16,864 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:01:16" (1/1) ... [2024-09-12 18:01:16,871 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:01:16" (1/1) ... [2024-09-12 18:01:16,876 INFO L138 Inliner]: procedures = 16, calls = 14, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 18:01:16,877 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 18:01:16,878 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 18:01:16,878 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 18:01:16,878 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 18:01:16,887 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:01:16" (1/1) ... [2024-09-12 18:01:16,888 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:01:16" (1/1) ... [2024-09-12 18:01:16,893 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:01:16" (1/1) ... [2024-09-12 18:01:16,911 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-12 18:01:16,912 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:01:16" (1/1) ... [2024-09-12 18:01:16,912 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:01:16" (1/1) ... [2024-09-12 18:01:16,914 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:01:16" (1/1) ... [2024-09-12 18:01:16,918 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:01:16" (1/1) ... [2024-09-12 18:01:16,923 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:01:16" (1/1) ... [2024-09-12 18:01:16,924 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:01:16" (1/1) ... [2024-09-12 18:01:16,925 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 18:01:16,925 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 18:01:16,925 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 18:01:16,926 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 18:01:16,928 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:01:16" (1/1) ... [2024-09-12 18:01:16,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:01:16,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:16,959 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-12 18:01:16,962 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-12 18:01:17,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 18:01:17,083 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 18:01:17,083 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 18:01:17,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 18:01:17,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 18:01:17,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 18:01:17,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 18:01:17,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 18:01:17,085 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 18:01:17,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 18:01:17,158 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 18:01:17,160 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 18:01:17,379 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-09-12 18:01:17,380 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 18:01:17,416 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 18:01:17,418 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-12 18:01:17,418 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:01:17 BoogieIcfgContainer [2024-09-12 18:01:17,419 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 18:01:17,421 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 18:01:17,422 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 18:01:17,426 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 18:01:17,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 06:01:16" (1/3) ... [2024-09-12 18:01:17,427 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a85b121 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:01:17, skipping insertion in model container [2024-09-12 18:01:17,427 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:01:16" (2/3) ... [2024-09-12 18:01:17,428 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a85b121 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:01:17, skipping insertion in model container [2024-09-12 18:01:17,428 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:01:17" (3/3) ... [2024-09-12 18:01:17,430 INFO L112 eAbstractionObserver]: Analyzing ICFG sendmail-close-angle.i [2024-09-12 18:01:17,448 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 18:01:17,448 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2024-09-12 18:01:17,515 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 18:01:17,523 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;@73d58bab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 18:01:17,524 INFO L337 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-09-12 18:01:17,529 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 27 states have (on average 1.6666666666666667) internal successors, (45), 39 states have internal predecessors, (45), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 18:01:17,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-09-12 18:01:17,535 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:17,536 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:01:17,537 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:01:17,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:17,543 INFO L85 PathProgramCache]: Analyzing trace with hash 574161726, now seen corresponding path program 1 times [2024-09-12 18:01:17,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:17,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299663705] [2024-09-12 18:01:17,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:17,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:17,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:17,727 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:17,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:17,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:01:17,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:17,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299663705] [2024-09-12 18:01:17,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299663705] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:01:17,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:01:17,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:01:17,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006078186] [2024-09-12 18:01:17,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:01:17,751 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:01:17,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:17,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:01:17,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:01:17,779 INFO L87 Difference]: Start difference. First operand has 52 states, 27 states have (on average 1.6666666666666667) internal successors, (45), 39 states have internal predecessors, (45), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:01:17,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:17,838 INFO L93 Difference]: Finished difference Result 94 states and 125 transitions. [2024-09-12 18:01:17,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:01:17,841 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2024-09-12 18:01:17,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:17,849 INFO L225 Difference]: With dead ends: 94 [2024-09-12 18:01:17,849 INFO L226 Difference]: Without dead ends: 47 [2024-09-12 18:01:17,853 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:01:17,858 INFO L434 NwaCegarLoop]: 55 mSDtfsCounter, 28 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:17,859 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 74 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:01:17,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-09-12 18:01:17,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-09-12 18:01:17,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 25 states have (on average 1.44) internal successors, (36), 35 states have internal predecessors, (36), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 18:01:17,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 55 transitions. [2024-09-12 18:01:17,909 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 55 transitions. Word has length 9 [2024-09-12 18:01:17,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:17,911 INFO L474 AbstractCegarLoop]: Abstraction has 47 states and 55 transitions. [2024-09-12 18:01:17,911 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:01:17,912 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:17,913 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 55 transitions. [2024-09-12 18:01:17,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-09-12 18:01:17,913 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:17,914 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:01:17,914 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 18:01:17,914 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:01:17,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:17,915 INFO L85 PathProgramCache]: Analyzing trace with hash 619144380, now seen corresponding path program 1 times [2024-09-12 18:01:17,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:17,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906495381] [2024-09-12 18:01:17,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:17,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:17,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:18,011 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:18,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:18,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:01:18,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:18,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906495381] [2024-09-12 18:01:18,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906495381] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:01:18,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:01:18,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:01:18,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62679487] [2024-09-12 18:01:18,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:01:18,028 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:01:18,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:18,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:01:18,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:01:18,030 INFO L87 Difference]: Start difference. First operand 47 states and 55 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:01:18,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:18,077 INFO L93 Difference]: Finished difference Result 47 states and 55 transitions. [2024-09-12 18:01:18,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:01:18,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2024-09-12 18:01:18,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:18,079 INFO L225 Difference]: With dead ends: 47 [2024-09-12 18:01:18,081 INFO L226 Difference]: Without dead ends: 46 [2024-09-12 18:01:18,082 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:01:18,084 INFO L434 NwaCegarLoop]: 48 mSDtfsCounter, 24 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:18,084 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 64 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:01:18,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-09-12 18:01:18,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-09-12 18:01:18,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 25 states have (on average 1.4) internal successors, (35), 34 states have internal predecessors, (35), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 18:01:18,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 54 transitions. [2024-09-12 18:01:18,110 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 54 transitions. Word has length 10 [2024-09-12 18:01:18,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:18,111 INFO L474 AbstractCegarLoop]: Abstraction has 46 states and 54 transitions. [2024-09-12 18:01:18,112 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:01:18,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:18,112 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 54 transitions. [2024-09-12 18:01:18,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-09-12 18:01:18,114 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:18,114 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:01:18,114 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 18:01:18,115 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 18:01:18,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:18,115 INFO L85 PathProgramCache]: Analyzing trace with hash -750719413, now seen corresponding path program 1 times [2024-09-12 18:01:18,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:18,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911545965] [2024-09-12 18:01:18,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:18,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:18,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:18,312 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:18,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:18,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:01:18,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:18,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911545965] [2024-09-12 18:01:18,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911545965] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:01:18,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:01:18,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:01:18,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843994973] [2024-09-12 18:01:18,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:01:18,321 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:01:18,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:18,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:01:18,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:01:18,326 INFO L87 Difference]: Start difference. First operand 46 states and 54 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:01:18,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:18,429 INFO L93 Difference]: Finished difference Result 61 states and 74 transitions. [2024-09-12 18:01:18,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:01:18,433 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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 16 [2024-09-12 18:01:18,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:18,434 INFO L225 Difference]: With dead ends: 61 [2024-09-12 18:01:18,434 INFO L226 Difference]: Without dead ends: 59 [2024-09-12 18:01:18,435 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 18:01:18,436 INFO L434 NwaCegarLoop]: 43 mSDtfsCounter, 6 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:18,440 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 161 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:01:18,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-09-12 18:01:18,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 55. [2024-09-12 18:01:18,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 31 states have (on average 1.3870967741935485) internal successors, (43), 41 states have internal predecessors, (43), 12 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 18:01:18,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 66 transitions. [2024-09-12 18:01:18,475 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 66 transitions. Word has length 16 [2024-09-12 18:01:18,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:18,475 INFO L474 AbstractCegarLoop]: Abstraction has 55 states and 66 transitions. [2024-09-12 18:01:18,475 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:01:18,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:18,476 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 66 transitions. [2024-09-12 18:01:18,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-09-12 18:01:18,477 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:18,477 INFO L216 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:01:18,477 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-12 18:01:18,478 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 18:01:18,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:18,478 INFO L85 PathProgramCache]: Analyzing trace with hash -318596539, now seen corresponding path program 1 times [2024-09-12 18:01:18,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:18,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403096215] [2024-09-12 18:01:18,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:18,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:18,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:18,626 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:18,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:18,635 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 18:01:18,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:18,641 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 18:01:18,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:18,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403096215] [2024-09-12 18:01:18,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403096215] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:01:18,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:01:18,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 18:01:18,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680388140] [2024-09-12 18:01:18,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:01:18,663 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:01:18,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:18,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:01:18,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:01:18,664 INFO L87 Difference]: Start difference. First operand 55 states and 66 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 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 18:01:18,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:18,794 INFO L93 Difference]: Finished difference Result 65 states and 77 transitions. [2024-09-12 18:01:18,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:01:18,795 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 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 21 [2024-09-12 18:01:18,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:18,796 INFO L225 Difference]: With dead ends: 65 [2024-09-12 18:01:18,796 INFO L226 Difference]: Without dead ends: 63 [2024-09-12 18:01:18,797 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:01:18,798 INFO L434 NwaCegarLoop]: 44 mSDtfsCounter, 39 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:18,798 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 170 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:01:18,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-09-12 18:01:18,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 61. [2024-09-12 18:01:18,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 44 states have internal predecessors, (46), 14 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 18:01:18,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 73 transitions. [2024-09-12 18:01:18,811 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 73 transitions. Word has length 21 [2024-09-12 18:01:18,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:18,812 INFO L474 AbstractCegarLoop]: Abstraction has 61 states and 73 transitions. [2024-09-12 18:01:18,812 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 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 18:01:18,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:18,812 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 73 transitions. [2024-09-12 18:01:18,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-09-12 18:01:18,813 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:18,813 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:01:18,814 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-12 18:01:18,814 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:01:18,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:18,814 INFO L85 PathProgramCache]: Analyzing trace with hash 573100325, now seen corresponding path program 1 times [2024-09-12 18:01:18,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:18,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247629874] [2024-09-12 18:01:18,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:18,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:18,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:18,858 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:18,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:18,862 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 18:01:18,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:18,867 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:01:18,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:18,871 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 18:01:18,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:18,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247629874] [2024-09-12 18:01:18,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247629874] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:01:18,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:01:18,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:01:18,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701933666] [2024-09-12 18:01:18,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:01:18,873 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:01:18,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:18,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:01:18,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:01:18,874 INFO L87 Difference]: Start difference. First operand 61 states and 73 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 18:01:18,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:18,912 INFO L93 Difference]: Finished difference Result 67 states and 79 transitions. [2024-09-12 18:01:18,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:01:18,912 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 24 [2024-09-12 18:01:18,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:18,914 INFO L225 Difference]: With dead ends: 67 [2024-09-12 18:01:18,914 INFO L226 Difference]: Without dead ends: 65 [2024-09-12 18:01:18,914 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 18:01:18,915 INFO L434 NwaCegarLoop]: 45 mSDtfsCounter, 4 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:18,916 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 129 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:01:18,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-09-12 18:01:18,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 64. [2024-09-12 18:01:18,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 46 states have internal predecessors, (49), 14 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 18:01:18,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 76 transitions. [2024-09-12 18:01:18,930 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 76 transitions. Word has length 24 [2024-09-12 18:01:18,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:18,930 INFO L474 AbstractCegarLoop]: Abstraction has 64 states and 76 transitions. [2024-09-12 18:01:18,930 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 18:01:18,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:18,931 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 76 transitions. [2024-09-12 18:01:18,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-09-12 18:01:18,932 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:18,932 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:01:18,932 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-09-12 18:01:18,933 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:01:18,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:18,933 INFO L85 PathProgramCache]: Analyzing trace with hash -2063456114, now seen corresponding path program 1 times [2024-09-12 18:01:18,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:18,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966710213] [2024-09-12 18:01:18,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:18,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:18,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:19,012 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:19,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:19,017 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 18:01:19,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:19,026 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-09-12 18:01:19,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:19,033 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 18:01:19,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:19,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966710213] [2024-09-12 18:01:19,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966710213] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:01:19,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:01:19,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:01:19,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229952107] [2024-09-12 18:01:19,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:01:19,037 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:01:19,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:19,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:01:19,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:01:19,039 INFO L87 Difference]: Start difference. First operand 64 states and 76 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:01:19,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:19,097 INFO L93 Difference]: Finished difference Result 69 states and 81 transitions. [2024-09-12 18:01:19,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:01:19,098 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 25 [2024-09-12 18:01:19,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:19,099 INFO L225 Difference]: With dead ends: 69 [2024-09-12 18:01:19,099 INFO L226 Difference]: Without dead ends: 67 [2024-09-12 18:01:19,100 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 18:01:19,101 INFO L434 NwaCegarLoop]: 46 mSDtfsCounter, 3 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:19,101 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 131 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:01:19,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-09-12 18:01:19,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2024-09-12 18:01:19,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 40 states have (on average 1.3) internal successors, (52), 48 states have internal predecessors, (52), 14 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 18:01:19,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 79 transitions. [2024-09-12 18:01:19,114 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 79 transitions. Word has length 25 [2024-09-12 18:01:19,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:19,114 INFO L474 AbstractCegarLoop]: Abstraction has 67 states and 79 transitions. [2024-09-12 18:01:19,114 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:01:19,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:19,115 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 79 transitions. [2024-09-12 18:01:19,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-09-12 18:01:19,116 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:19,116 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:01:19,116 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-09-12 18:01:19,116 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:01:19,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:19,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1293569653, now seen corresponding path program 1 times [2024-09-12 18:01:19,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:19,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215001636] [2024-09-12 18:01:19,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:19,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:19,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:19,153 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:19,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:19,156 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 18:01:19,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:19,159 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-09-12 18:01:19,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:19,163 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 18:01:19,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:19,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215001636] [2024-09-12 18:01:19,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215001636] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:01:19,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:01:19,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:01:19,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319408417] [2024-09-12 18:01:19,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:01:19,164 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:01:19,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:19,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:01:19,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:01:19,165 INFO L87 Difference]: Start difference. First operand 67 states and 79 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 18:01:19,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:19,199 INFO L93 Difference]: Finished difference Result 78 states and 91 transitions. [2024-09-12 18:01:19,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:01:19,201 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 27 [2024-09-12 18:01:19,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:19,202 INFO L225 Difference]: With dead ends: 78 [2024-09-12 18:01:19,202 INFO L226 Difference]: Without dead ends: 76 [2024-09-12 18:01:19,202 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 18:01:19,203 INFO L434 NwaCegarLoop]: 49 mSDtfsCounter, 10 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:19,204 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 142 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:01:19,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-09-12 18:01:19,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 69. [2024-09-12 18:01:19,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 42 states have (on average 1.2857142857142858) internal successors, (54), 50 states have internal predecessors, (54), 14 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 18:01:19,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 81 transitions. [2024-09-12 18:01:19,233 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 81 transitions. Word has length 27 [2024-09-12 18:01:19,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:19,235 INFO L474 AbstractCegarLoop]: Abstraction has 69 states and 81 transitions. [2024-09-12 18:01:19,235 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 18:01:19,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:19,236 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 81 transitions. [2024-09-12 18:01:19,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-09-12 18:01:19,236 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:19,237 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] [2024-09-12 18:01:19,237 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-12 18:01:19,238 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 18:01:19,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:19,239 INFO L85 PathProgramCache]: Analyzing trace with hash -528902395, now seen corresponding path program 1 times [2024-09-12 18:01:19,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:19,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085907379] [2024-09-12 18:01:19,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:19,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:19,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:19,348 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:19,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:19,354 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 18:01:19,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:19,358 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:01:19,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:19,363 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 18:01:19,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:19,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085907379] [2024-09-12 18:01:19,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085907379] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:01:19,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:01:19,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-09-12 18:01:19,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224412153] [2024-09-12 18:01:19,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:01:19,368 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:01:19,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:19,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:01:19,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:01:19,369 INFO L87 Difference]: Start difference. First operand 69 states and 81 transitions. Second operand has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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 18:01:19,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:19,497 INFO L93 Difference]: Finished difference Result 78 states and 91 transitions. [2024-09-12 18:01:19,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:01:19,498 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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 29 [2024-09-12 18:01:19,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:19,500 INFO L225 Difference]: With dead ends: 78 [2024-09-12 18:01:19,501 INFO L226 Difference]: Without dead ends: 76 [2024-09-12 18:01:19,502 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 18:01:19,503 INFO L434 NwaCegarLoop]: 39 mSDtfsCounter, 6 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:19,505 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 220 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:01:19,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-09-12 18:01:19,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 74. [2024-09-12 18:01:19,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 45 states have (on average 1.2666666666666666) internal successors, (57), 54 states have internal predecessors, (57), 15 states have call successors, (15), 6 states have call predecessors, (15), 5 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-09-12 18:01:19,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 86 transitions. [2024-09-12 18:01:19,528 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 86 transitions. Word has length 29 [2024-09-12 18:01:19,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:19,528 INFO L474 AbstractCegarLoop]: Abstraction has 74 states and 86 transitions. [2024-09-12 18:01:19,528 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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 18:01:19,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:19,529 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 86 transitions. [2024-09-12 18:01:19,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-09-12 18:01:19,530 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:19,530 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, 1, 1] [2024-09-12 18:01:19,530 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-09-12 18:01:19,530 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 18:01:19,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:19,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1178259791, now seen corresponding path program 1 times [2024-09-12 18:01:19,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:19,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044057738] [2024-09-12 18:01:19,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:19,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:19,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:19,617 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:19,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:19,619 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 18:01:19,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:19,624 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-09-12 18:01:19,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:19,631 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 18:01:19,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:19,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044057738] [2024-09-12 18:01:19,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044057738] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:01:19,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:01:19,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-09-12 18:01:19,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553577322] [2024-09-12 18:01:19,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:01:19,633 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:01:19,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:19,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:01:19,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:01:19,634 INFO L87 Difference]: Start difference. First operand 74 states and 86 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 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 18:01:19,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:19,744 INFO L93 Difference]: Finished difference Result 112 states and 132 transitions. [2024-09-12 18:01:19,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:01:19,745 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 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 32 [2024-09-12 18:01:19,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:19,746 INFO L225 Difference]: With dead ends: 112 [2024-09-12 18:01:19,746 INFO L226 Difference]: Without dead ends: 110 [2024-09-12 18:01:19,747 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 18:01:19,750 INFO L434 NwaCegarLoop]: 75 mSDtfsCounter, 30 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:19,751 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 373 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:01:19,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-09-12 18:01:19,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 79. [2024-09-12 18:01:19,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 48 states have (on average 1.25) internal successors, (60), 58 states have internal predecessors, (60), 16 states have call successors, (16), 7 states have call predecessors, (16), 6 states have return successors, (15), 13 states have call predecessors, (15), 15 states have call successors, (15) [2024-09-12 18:01:19,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 91 transitions. [2024-09-12 18:01:19,791 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 91 transitions. Word has length 32 [2024-09-12 18:01:19,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:19,791 INFO L474 AbstractCegarLoop]: Abstraction has 79 states and 91 transitions. [2024-09-12 18:01:19,791 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 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 18:01:19,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:19,792 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 91 transitions. [2024-09-12 18:01:19,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-09-12 18:01:19,793 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:19,793 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] [2024-09-12 18:01:19,793 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-09-12 18:01:19,795 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 18:01:19,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:19,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1318225227, now seen corresponding path program 1 times [2024-09-12 18:01:19,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:19,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849770652] [2024-09-12 18:01:19,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:19,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:19,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:19,946 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:19,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:19,949 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 18:01:19,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:19,956 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:01:19,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:19,960 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-09-12 18:01:19,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:19,965 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 18:01:19,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:19,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849770652] [2024-09-12 18:01:19,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849770652] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:01:19,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:01:19,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-09-12 18:01:19,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096085417] [2024-09-12 18:01:19,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:01:19,970 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:01:19,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:19,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:01:19,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:01:19,971 INFO L87 Difference]: Start difference. First operand 79 states and 91 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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 18:01:20,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:20,108 INFO L93 Difference]: Finished difference Result 87 states and 99 transitions. [2024-09-12 18:01:20,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:01:20,109 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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 34 [2024-09-12 18:01:20,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:20,112 INFO L225 Difference]: With dead ends: 87 [2024-09-12 18:01:20,113 INFO L226 Difference]: Without dead ends: 85 [2024-09-12 18:01:20,113 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:01:20,114 INFO L434 NwaCegarLoop]: 35 mSDtfsCounter, 38 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:20,115 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 155 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:01:20,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-09-12 18:01:20,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 84. [2024-09-12 18:01:20,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 51 states have (on average 1.2352941176470589) internal successors, (63), 61 states have internal predecessors, (63), 17 states have call successors, (17), 8 states have call predecessors, (17), 7 states have return successors, (16), 14 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 18:01:20,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 96 transitions. [2024-09-12 18:01:20,135 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 96 transitions. Word has length 34 [2024-09-12 18:01:20,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:20,136 INFO L474 AbstractCegarLoop]: Abstraction has 84 states and 96 transitions. [2024-09-12 18:01:20,136 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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 18:01:20,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:20,136 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 96 transitions. [2024-09-12 18:01:20,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-09-12 18:01:20,141 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:20,141 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] [2024-09-12 18:01:20,141 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-09-12 18:01:20,142 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:01:20,142 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:20,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1928343485, now seen corresponding path program 1 times [2024-09-12 18:01:20,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:20,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722276608] [2024-09-12 18:01:20,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:20,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:20,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:20,196 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:20,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:20,198 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 18:01:20,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:20,201 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:01:20,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:20,205 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-09-12 18:01:20,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:20,207 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-09-12 18:01:20,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:20,210 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 18:01:20,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:20,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722276608] [2024-09-12 18:01:20,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722276608] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:01:20,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:01:20,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:01:20,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155082652] [2024-09-12 18:01:20,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:01:20,212 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:01:20,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:20,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:01:20,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:01:20,214 INFO L87 Difference]: Start difference. First operand 84 states and 96 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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 18:01:20,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:20,286 INFO L93 Difference]: Finished difference Result 88 states and 100 transitions. [2024-09-12 18:01:20,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:01:20,286 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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 37 [2024-09-12 18:01:20,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:20,289 INFO L225 Difference]: With dead ends: 88 [2024-09-12 18:01:20,289 INFO L226 Difference]: Without dead ends: 87 [2024-09-12 18:01:20,289 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 18:01:20,290 INFO L434 NwaCegarLoop]: 42 mSDtfsCounter, 4 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:20,291 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 197 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:01:20,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-09-12 18:01:20,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2024-09-12 18:01:20,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 53 states have (on average 1.2264150943396226) internal successors, (65), 62 states have internal predecessors, (65), 17 states have call successors, (17), 8 states have call predecessors, (17), 7 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 18:01:20,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 98 transitions. [2024-09-12 18:01:20,307 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 98 transitions. Word has length 37 [2024-09-12 18:01:20,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:20,307 INFO L474 AbstractCegarLoop]: Abstraction has 86 states and 98 transitions. [2024-09-12 18:01:20,308 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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 18:01:20,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:20,308 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 98 transitions. [2024-09-12 18:01:20,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-09-12 18:01:20,311 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:20,311 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 18:01:20,311 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-09-12 18:01:20,311 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:01:20,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:20,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1559919135, now seen corresponding path program 1 times [2024-09-12 18:01:20,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:20,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649112431] [2024-09-12 18:01:20,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:20,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:20,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:20,413 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:20,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:20,416 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 18:01:20,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:20,419 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-09-12 18:01:20,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:20,426 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:01:20,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:20,428 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 18:01:20,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:20,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649112431] [2024-09-12 18:01:20,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649112431] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:01:20,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:01:20,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-09-12 18:01:20,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981908641] [2024-09-12 18:01:20,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:01:20,430 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:01:20,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:20,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:01:20,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:01:20,431 INFO L87 Difference]: Start difference. First operand 86 states and 98 transitions. Second operand has 8 states, 7 states have (on average 3.0) 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 18:01:20,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:20,586 INFO L93 Difference]: Finished difference Result 119 states and 137 transitions. [2024-09-12 18:01:20,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:01:20,587 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) 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 18:01:20,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:20,588 INFO L225 Difference]: With dead ends: 119 [2024-09-12 18:01:20,589 INFO L226 Difference]: Without dead ends: 117 [2024-09-12 18:01:20,590 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:01:20,590 INFO L434 NwaCegarLoop]: 47 mSDtfsCounter, 98 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:20,591 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 245 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:01:20,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-09-12 18:01:20,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 91. [2024-09-12 18:01:20,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 56 states have (on average 1.2142857142857142) internal successors, (68), 65 states have internal predecessors, (68), 18 states have call successors, (18), 9 states have call predecessors, (18), 8 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 18:01:20,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 103 transitions. [2024-09-12 18:01:20,617 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 103 transitions. Word has length 37 [2024-09-12 18:01:20,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:20,618 INFO L474 AbstractCegarLoop]: Abstraction has 91 states and 103 transitions. [2024-09-12 18:01:20,618 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) 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 18:01:20,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:20,619 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 103 transitions. [2024-09-12 18:01:20,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-09-12 18:01:20,623 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:20,624 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] [2024-09-12 18:01:20,624 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-09-12 18:01:20,624 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:01:20,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:20,624 INFO L85 PathProgramCache]: Analyzing trace with hash 350894214, now seen corresponding path program 1 times [2024-09-12 18:01:20,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:20,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113046062] [2024-09-12 18:01:20,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:20,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:20,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:20,683 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:20,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:20,686 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 18:01:20,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:20,689 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:01:20,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:20,692 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-09-12 18:01:20,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:20,695 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-09-12 18:01:20,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:20,698 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 18:01:20,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:20,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113046062] [2024-09-12 18:01:20,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113046062] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:01:20,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:01:20,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:01:20,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737946020] [2024-09-12 18:01:20,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:01:20,701 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:01:20,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:20,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:01:20,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:01:20,702 INFO L87 Difference]: Start difference. First operand 91 states and 103 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 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 18:01:20,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:20,757 INFO L93 Difference]: Finished difference Result 93 states and 104 transitions. [2024-09-12 18:01:20,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:01:20,757 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 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 38 [2024-09-12 18:01:20,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:20,758 INFO L225 Difference]: With dead ends: 93 [2024-09-12 18:01:20,759 INFO L226 Difference]: Without dead ends: 74 [2024-09-12 18:01:20,759 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 18:01:20,760 INFO L434 NwaCegarLoop]: 43 mSDtfsCounter, 6 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:20,760 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 165 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:01:20,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-09-12 18:01:20,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2024-09-12 18:01:20,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 45 states have (on average 1.2222222222222223) internal successors, (55), 54 states have internal predecessors, (55), 14 states have call successors, (14), 7 states have call predecessors, (14), 6 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 18:01:20,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 82 transitions. [2024-09-12 18:01:20,771 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 82 transitions. Word has length 38 [2024-09-12 18:01:20,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:20,771 INFO L474 AbstractCegarLoop]: Abstraction has 74 states and 82 transitions. [2024-09-12 18:01:20,771 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 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 18:01:20,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:20,772 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 82 transitions. [2024-09-12 18:01:20,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-09-12 18:01:20,773 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:20,773 INFO L216 NwaCegarLoop]: trace histogram [5, 4, 4, 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] [2024-09-12 18:01:20,773 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-09-12 18:01:20,773 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:01:20,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:20,774 INFO L85 PathProgramCache]: Analyzing trace with hash -545723308, now seen corresponding path program 1 times [2024-09-12 18:01:20,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:20,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302044285] [2024-09-12 18:01:20,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:20,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:20,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:20,850 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:20,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:20,852 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 18:01:20,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:20,856 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-09-12 18:01:20,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:20,863 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:01:20,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:20,865 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 18:01:20,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:20,867 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:01:20,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:20,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302044285] [2024-09-12 18:01:20,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302044285] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:01:20,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1048170145] [2024-09-12 18:01:20,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:20,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:20,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:20,871 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:01:20,872 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-12 18:01:20,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:20,925 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 18:01:20,930 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:21,104 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 9 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 18:01:21,104 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:01:21,244 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 9 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 18:01:21,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1048170145] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:01:21,244 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:01:21,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 8] total 15 [2024-09-12 18:01:21,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282110280] [2024-09-12 18:01:21,245 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:01:21,245 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 18:01:21,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:21,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 18:01:21,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:01:21,247 INFO L87 Difference]: Start difference. First operand 74 states and 82 transitions. Second operand has 15 states, 15 states have (on average 3.4) internal successors, (51), 13 states have internal predecessors, (51), 5 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-09-12 18:01:21,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:21,440 INFO L93 Difference]: Finished difference Result 80 states and 87 transitions. [2024-09-12 18:01:21,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:01:21,443 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.4) internal successors, (51), 13 states have internal predecessors, (51), 5 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 44 [2024-09-12 18:01:21,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:21,444 INFO L225 Difference]: With dead ends: 80 [2024-09-12 18:01:21,444 INFO L226 Difference]: Without dead ends: 77 [2024-09-12 18:01:21,444 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 90 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 18:01:21,445 INFO L434 NwaCegarLoop]: 36 mSDtfsCounter, 14 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:21,445 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 255 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:01:21,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-09-12 18:01:21,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-09-12 18:01:21,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 48 states have (on average 1.1875) internal successors, (57), 56 states have internal predecessors, (57), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 18:01:21,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 84 transitions. [2024-09-12 18:01:21,459 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 84 transitions. Word has length 44 [2024-09-12 18:01:21,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:21,460 INFO L474 AbstractCegarLoop]: Abstraction has 77 states and 84 transitions. [2024-09-12 18:01:21,460 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.4) internal successors, (51), 13 states have internal predecessors, (51), 5 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-09-12 18:01:21,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:21,461 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 84 transitions. [2024-09-12 18:01:21,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-09-12 18:01:21,462 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:21,462 INFO L216 NwaCegarLoop]: trace histogram [6, 5, 5, 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 18:01:21,482 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-09-12 18:01:21,663 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-09-12 18:01:21,664 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:01:21,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:21,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1769273820, now seen corresponding path program 1 times [2024-09-12 18:01:21,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:21,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246491361] [2024-09-12 18:01:21,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:21,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:21,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:21,780 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:21,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:21,783 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 18:01:21,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:21,786 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-09-12 18:01:21,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:21,793 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:01:21,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:21,798 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 18:01:21,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:21,802 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 18:01:21,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:21,806 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:01:21,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:21,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246491361] [2024-09-12 18:01:21,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246491361] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:01:21,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649291817] [2024-09-12 18:01:21,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:21,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:21,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:21,809 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:01:21,811 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-12 18:01:21,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:21,859 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:01:21,872 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:22,065 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:01:22,065 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:01:22,175 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:01:22,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649291817] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:01:22,175 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:01:22,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2024-09-12 18:01:22,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315482114] [2024-09-12 18:01:22,177 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:01:22,179 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 18:01:22,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:22,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 18:01:22,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:01:22,180 INFO L87 Difference]: Start difference. First operand 77 states and 84 transitions. Second operand has 15 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 13 states have internal predecessors, (47), 6 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2024-09-12 18:01:22,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:22,338 INFO L93 Difference]: Finished difference Result 92 states and 104 transitions. [2024-09-12 18:01:22,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:01:22,339 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 13 states have internal predecessors, (47), 6 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) Word has length 49 [2024-09-12 18:01:22,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:22,340 INFO L225 Difference]: With dead ends: 92 [2024-09-12 18:01:22,340 INFO L226 Difference]: Without dead ends: 90 [2024-09-12 18:01:22,341 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 99 SyntacticMatches, 5 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:01:22,341 INFO L434 NwaCegarLoop]: 38 mSDtfsCounter, 33 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:22,341 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 288 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:01:22,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-09-12 18:01:22,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 88. [2024-09-12 18:01:22,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 54 states have (on average 1.2037037037037037) internal successors, (65), 63 states have internal predecessors, (65), 18 states have call successors, (18), 9 states have call predecessors, (18), 8 states have return successors, (17), 15 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 18:01:22,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 100 transitions. [2024-09-12 18:01:22,358 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 100 transitions. Word has length 49 [2024-09-12 18:01:22,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:22,360 INFO L474 AbstractCegarLoop]: Abstraction has 88 states and 100 transitions. [2024-09-12 18:01:22,360 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 13 states have internal predecessors, (47), 6 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2024-09-12 18:01:22,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:22,360 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 100 transitions. [2024-09-12 18:01:22,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-09-12 18:01:22,361 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:22,361 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 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 18:01:22,378 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 18:01:22,565 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-12 18:01:22,566 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:01:22,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:22,566 INFO L85 PathProgramCache]: Analyzing trace with hash 602584622, now seen corresponding path program 1 times [2024-09-12 18:01:22,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:22,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513010588] [2024-09-12 18:01:22,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:22,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:22,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:22,628 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:22,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:22,632 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 18:01:22,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:22,635 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-09-12 18:01:22,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:22,639 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:01:22,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:22,642 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 18:01:22,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:22,645 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 18:01:22,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:22,648 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:01:22,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:22,652 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:01:22,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:22,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513010588] [2024-09-12 18:01:22,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513010588] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:01:22,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309984348] [2024-09-12 18:01:22,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:22,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:22,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:22,656 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:01:22,657 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-12 18:01:22,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:22,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:01:22,702 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:22,745 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:01:22,745 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:01:22,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [309984348] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:01:22,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:01:22,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-09-12 18:01:22,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771509105] [2024-09-12 18:01:22,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:01:22,746 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:01:22,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:22,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:01:22,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:01:22,747 INFO L87 Difference]: Start difference. First operand 88 states and 100 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:01:22,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:22,811 INFO L93 Difference]: Finished difference Result 88 states and 100 transitions. [2024-09-12 18:01:22,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:01:22,811 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 52 [2024-09-12 18:01:22,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:22,812 INFO L225 Difference]: With dead ends: 88 [2024-09-12 18:01:22,814 INFO L226 Difference]: Without dead ends: 87 [2024-09-12 18:01:22,814 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 64 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 18:01:22,815 INFO L434 NwaCegarLoop]: 45 mSDtfsCounter, 6 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:22,815 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 185 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:01:22,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-09-12 18:01:22,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-09-12 18:01:22,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 54 states have (on average 1.1851851851851851) internal successors, (64), 62 states have internal predecessors, (64), 18 states have call successors, (18), 9 states have call predecessors, (18), 8 states have return successors, (17), 15 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 18:01:22,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 99 transitions. [2024-09-12 18:01:22,829 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 99 transitions. Word has length 52 [2024-09-12 18:01:22,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:22,830 INFO L474 AbstractCegarLoop]: Abstraction has 87 states and 99 transitions. [2024-09-12 18:01:22,831 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:01:22,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:22,832 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 99 transitions. [2024-09-12 18:01:22,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-09-12 18:01:22,832 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:22,832 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 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 18:01:22,851 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-12 18:01:23,033 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-12 18:01:23,034 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:01:23,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:23,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1500254196, now seen corresponding path program 1 times [2024-09-12 18:01:23,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:23,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38799524] [2024-09-12 18:01:23,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:23,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:23,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:23,094 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:23,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:23,097 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 18:01:23,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:23,099 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-09-12 18:01:23,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:23,102 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:01:23,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:23,104 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 18:01:23,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:23,106 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 18:01:23,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:23,109 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:01:23,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:23,111 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:01:23,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:23,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38799524] [2024-09-12 18:01:23,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38799524] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:01:23,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381336350] [2024-09-12 18:01:23,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:23,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:23,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:23,114 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:01:23,118 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-12 18:01:23,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:23,167 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:01:23,168 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:23,218 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:01:23,218 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:01:23,308 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:01:23,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [381336350] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:01:23,308 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:01:23,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-09-12 18:01:23,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713661082] [2024-09-12 18:01:23,309 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:01:23,309 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:01:23,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:23,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:01:23,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:01:23,311 INFO L87 Difference]: Start difference. First operand 87 states and 99 transitions. Second operand has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 12 states have internal predecessors, (48), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-09-12 18:01:23,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:23,421 INFO L93 Difference]: Finished difference Result 115 states and 138 transitions. [2024-09-12 18:01:23,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:01:23,421 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 12 states have internal predecessors, (48), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 53 [2024-09-12 18:01:23,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:23,423 INFO L225 Difference]: With dead ends: 115 [2024-09-12 18:01:23,424 INFO L226 Difference]: Without dead ends: 113 [2024-09-12 18:01:23,424 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:01:23,425 INFO L434 NwaCegarLoop]: 41 mSDtfsCounter, 9 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:23,425 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 281 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:01:23,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-09-12 18:01:23,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 102. [2024-09-12 18:01:23,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 65 states have (on average 1.2153846153846153) internal successors, (79), 72 states have internal predecessors, (79), 22 states have call successors, (22), 9 states have call predecessors, (22), 8 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 18:01:23,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 122 transitions. [2024-09-12 18:01:23,440 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 122 transitions. Word has length 53 [2024-09-12 18:01:23,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:23,441 INFO L474 AbstractCegarLoop]: Abstraction has 102 states and 122 transitions. [2024-09-12 18:01:23,441 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 12 states have internal predecessors, (48), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-09-12 18:01:23,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:23,442 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 122 transitions. [2024-09-12 18:01:23,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-09-12 18:01:23,442 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:23,443 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 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 18:01:23,460 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-12 18:01:23,643 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:23,643 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:01:23,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:23,644 INFO L85 PathProgramCache]: Analyzing trace with hash -808034100, now seen corresponding path program 1 times [2024-09-12 18:01:23,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:23,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665419540] [2024-09-12 18:01:23,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:23,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:23,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:23,710 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:23,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:23,713 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 18:01:23,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:23,716 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-09-12 18:01:23,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:23,720 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:01:23,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:23,723 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 18:01:23,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:23,725 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 18:01:23,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:23,728 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 18:01:23,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:23,732 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:01:23,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:23,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665419540] [2024-09-12 18:01:23,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665419540] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:01:23,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033655368] [2024-09-12 18:01:23,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:23,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:23,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:23,735 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:01:23,737 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-12 18:01:23,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:23,782 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:01:23,784 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:23,828 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:01:23,829 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:01:23,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033655368] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:01:23,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:01:23,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-09-12 18:01:23,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380556917] [2024-09-12 18:01:23,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:01:23,830 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:01:23,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:23,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:01:23,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:01:23,830 INFO L87 Difference]: Start difference. First operand 102 states and 122 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:01:23,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:23,871 INFO L93 Difference]: Finished difference Result 102 states and 122 transitions. [2024-09-12 18:01:23,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:01:23,872 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 55 [2024-09-12 18:01:23,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:23,873 INFO L225 Difference]: With dead ends: 102 [2024-09-12 18:01:23,873 INFO L226 Difference]: Without dead ends: 101 [2024-09-12 18:01:23,873 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:01:23,873 INFO L434 NwaCegarLoop]: 54 mSDtfsCounter, 12 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:23,874 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 209 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:01:23,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-09-12 18:01:23,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-09-12 18:01:23,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 65 states have (on average 1.1846153846153846) internal successors, (77), 71 states have internal predecessors, (77), 22 states have call successors, (22), 9 states have call predecessors, (22), 8 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 18:01:23,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 120 transitions. [2024-09-12 18:01:23,890 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 120 transitions. Word has length 55 [2024-09-12 18:01:23,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:23,891 INFO L474 AbstractCegarLoop]: Abstraction has 101 states and 120 transitions. [2024-09-12 18:01:23,891 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:01:23,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:23,891 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 120 transitions. [2024-09-12 18:01:23,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-09-12 18:01:23,892 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:23,892 INFO L216 NwaCegarLoop]: trace histogram [7, 6, 6, 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 18:01:23,910 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-09-12 18:01:24,092 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-09-12 18:01:24,094 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 18:01:24,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:24,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1535479908, now seen corresponding path program 1 times [2024-09-12 18:01:24,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:24,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357374710] [2024-09-12 18:01:24,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:24,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:24,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:24,178 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:24,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:24,181 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 18:01:24,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:24,183 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-09-12 18:01:24,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:24,185 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:01:24,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:24,187 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 18:01:24,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:24,189 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 18:01:24,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:24,191 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:01:24,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:24,194 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:01:24,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:24,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357374710] [2024-09-12 18:01:24,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357374710] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:01:24,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490138127] [2024-09-12 18:01:24,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:24,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:24,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:24,196 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:01:24,198 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-12 18:01:24,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:24,240 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:01:24,242 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:24,326 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:01:24,328 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:01:24,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1490138127] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:01:24,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:01:24,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 13 [2024-09-12 18:01:24,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806543230] [2024-09-12 18:01:24,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:01:24,329 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:01:24,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:24,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:01:24,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:01:24,330 INFO L87 Difference]: Start difference. First operand 101 states and 120 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:01:24,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:24,430 INFO L93 Difference]: Finished difference Result 107 states and 125 transitions. [2024-09-12 18:01:24,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:01:24,431 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 57 [2024-09-12 18:01:24,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:24,432 INFO L225 Difference]: With dead ends: 107 [2024-09-12 18:01:24,432 INFO L226 Difference]: Without dead ends: 105 [2024-09-12 18:01:24,432 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 68 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 18:01:24,433 INFO L434 NwaCegarLoop]: 38 mSDtfsCounter, 9 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 215 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 18:01:24,433 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 215 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:01:24,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-09-12 18:01:24,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2024-09-12 18:01:24,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 68 states have (on average 1.1764705882352942) internal successors, (80), 74 states have internal predecessors, (80), 22 states have call successors, (22), 10 states have call predecessors, (22), 9 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 18:01:24,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 123 transitions. [2024-09-12 18:01:24,449 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 123 transitions. Word has length 57 [2024-09-12 18:01:24,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:24,450 INFO L474 AbstractCegarLoop]: Abstraction has 105 states and 123 transitions. [2024-09-12 18:01:24,450 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:01:24,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:24,452 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 123 transitions. [2024-09-12 18:01:24,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-09-12 18:01:24,453 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:24,453 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2024-09-12 18:01:24,470 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-09-12 18:01:24,653 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:24,654 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:01:24,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:24,655 INFO L85 PathProgramCache]: Analyzing trace with hash 720746762, now seen corresponding path program 1 times [2024-09-12 18:01:24,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:24,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999025525] [2024-09-12 18:01:24,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:24,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:24,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:24,713 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:24,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:24,716 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 18:01:24,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:24,719 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-09-12 18:01:24,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:24,721 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:01:24,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:24,724 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 18:01:24,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:24,727 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 18:01:24,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:24,729 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 18:01:24,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:24,733 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:01:24,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:24,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999025525] [2024-09-12 18:01:24,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999025525] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:01:24,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106443028] [2024-09-12 18:01:24,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:24,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:24,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:24,736 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:01:24,738 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-12 18:01:24,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:24,780 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:01:24,782 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:24,827 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:01:24,827 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:01:24,901 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:01:24,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1106443028] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:01:24,902 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:01:24,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-09-12 18:01:24,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810607197] [2024-09-12 18:01:24,903 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:01:24,903 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:01:24,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:24,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:01:24,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:01:24,904 INFO L87 Difference]: Start difference. First operand 105 states and 123 transitions. Second operand has 12 states, 11 states have (on average 5.090909090909091) internal successors, (56), 12 states have internal predecessors, (56), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-09-12 18:01:25,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:25,005 INFO L93 Difference]: Finished difference Result 157 states and 189 transitions. [2024-09-12 18:01:25,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:01:25,005 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.090909090909091) internal successors, (56), 12 states have internal predecessors, (56), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 56 [2024-09-12 18:01:25,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:25,015 INFO L225 Difference]: With dead ends: 157 [2024-09-12 18:01:25,015 INFO L226 Difference]: Without dead ends: 156 [2024-09-12 18:01:25,016 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:01:25,016 INFO L434 NwaCegarLoop]: 46 mSDtfsCounter, 58 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:25,017 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 240 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:01:25,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-09-12 18:01:25,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 124. [2024-09-12 18:01:25,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 81 states have (on average 1.1851851851851851) internal successors, (96), 87 states have internal predecessors, (96), 28 states have call successors, (28), 10 states have call predecessors, (28), 9 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-09-12 18:01:25,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 151 transitions. [2024-09-12 18:01:25,043 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 151 transitions. Word has length 56 [2024-09-12 18:01:25,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:25,043 INFO L474 AbstractCegarLoop]: Abstraction has 124 states and 151 transitions. [2024-09-12 18:01:25,044 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.090909090909091) internal successors, (56), 12 states have internal predecessors, (56), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-09-12 18:01:25,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:25,044 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 151 transitions. [2024-09-12 18:01:25,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-09-12 18:01:25,045 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:25,045 INFO L216 NwaCegarLoop]: trace histogram [7, 6, 6, 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] [2024-09-12 18:01:25,062 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-12 18:01:25,246 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:25,247 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 18:01:25,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:25,247 INFO L85 PathProgramCache]: Analyzing trace with hash -667288902, now seen corresponding path program 1 times [2024-09-12 18:01:25,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:25,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685245570] [2024-09-12 18:01:25,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:25,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:25,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:25,356 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:25,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:25,358 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 18:01:25,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:25,361 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-09-12 18:01:25,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:25,363 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:01:25,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:25,366 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 18:01:25,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:25,368 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 18:01:25,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:25,370 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 18:01:25,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:25,372 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 13 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:01:25,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:25,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685245570] [2024-09-12 18:01:25,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685245570] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:01:25,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1450388793] [2024-09-12 18:01:25,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:25,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:25,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:25,394 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:01:25,396 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-12 18:01:25,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:25,442 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:01:25,444 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:25,516 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:01:25,517 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:01:25,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1450388793] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:01:25,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:01:25,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 13 [2024-09-12 18:01:25,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600931958] [2024-09-12 18:01:25,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:01:25,518 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:01:25,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:25,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:01:25,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:01:25,519 INFO L87 Difference]: Start difference. First operand 124 states and 151 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:01:25,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:25,622 INFO L93 Difference]: Finished difference Result 140 states and 167 transitions. [2024-09-12 18:01:25,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:01:25,623 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 60 [2024-09-12 18:01:25,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:25,624 INFO L225 Difference]: With dead ends: 140 [2024-09-12 18:01:25,625 INFO L226 Difference]: Without dead ends: 138 [2024-09-12 18:01:25,625 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:01:25,626 INFO L434 NwaCegarLoop]: 83 mSDtfsCounter, 41 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:25,626 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 442 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:01:25,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-09-12 18:01:25,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 128. [2024-09-12 18:01:25,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 84 states have (on average 1.1785714285714286) internal successors, (99), 90 states have internal predecessors, (99), 28 states have call successors, (28), 11 states have call predecessors, (28), 10 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-09-12 18:01:25,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 154 transitions. [2024-09-12 18:01:25,646 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 154 transitions. Word has length 60 [2024-09-12 18:01:25,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:25,647 INFO L474 AbstractCegarLoop]: Abstraction has 128 states and 154 transitions. [2024-09-12 18:01:25,647 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:01:25,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:25,647 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 154 transitions. [2024-09-12 18:01:25,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-09-12 18:01:25,649 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:25,649 INFO L216 NwaCegarLoop]: trace histogram [8, 7, 7, 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 18:01:25,670 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-09-12 18:01:25,851 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:25,851 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 18:01:25,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:25,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1559989484, now seen corresponding path program 1 times [2024-09-12 18:01:25,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:25,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236988823] [2024-09-12 18:01:25,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:25,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:25,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:26,091 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:26,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:26,094 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 18:01:26,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:26,097 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-09-12 18:01:26,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:26,100 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:01:26,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:26,103 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 18:01:26,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:26,106 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 18:01:26,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:26,108 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:01:26,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:26,112 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-09-12 18:01:26,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:26,116 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:01:26,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:26,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236988823] [2024-09-12 18:01:26,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236988823] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:01:26,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [965730330] [2024-09-12 18:01:26,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:26,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:26,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:26,119 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:01:26,121 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-12 18:01:26,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:26,167 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 18:01:26,169 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:26,413 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:01:26,414 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:01:26,609 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:01:26,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [965730330] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:01:26,610 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:01:26,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 11] total 24 [2024-09-12 18:01:26,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946955928] [2024-09-12 18:01:26,610 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:01:26,610 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-12 18:01:26,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:26,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-12 18:01:26,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=451, Unknown=0, NotChecked=0, Total=552 [2024-09-12 18:01:26,612 INFO L87 Difference]: Start difference. First operand 128 states and 154 transitions. Second operand has 24 states, 22 states have (on average 2.409090909090909) internal successors, (53), 22 states have internal predecessors, (53), 8 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (17), 8 states have call predecessors, (17), 8 states have call successors, (17) [2024-09-12 18:01:26,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:26,911 INFO L93 Difference]: Finished difference Result 140 states and 167 transitions. [2024-09-12 18:01:26,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:01:26,912 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 2.409090909090909) internal successors, (53), 22 states have internal predecessors, (53), 8 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (17), 8 states have call predecessors, (17), 8 states have call successors, (17) Word has length 62 [2024-09-12 18:01:26,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:26,913 INFO L225 Difference]: With dead ends: 140 [2024-09-12 18:01:26,913 INFO L226 Difference]: Without dead ends: 138 [2024-09-12 18:01:26,914 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 121 SyntacticMatches, 8 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=135, Invalid=567, Unknown=0, NotChecked=0, Total=702 [2024-09-12 18:01:26,916 INFO L434 NwaCegarLoop]: 32 mSDtfsCounter, 33 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:26,917 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 430 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:01:26,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-09-12 18:01:26,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 137. [2024-09-12 18:01:26,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 90 states have (on average 1.1666666666666667) internal successors, (105), 96 states have internal predecessors, (105), 30 states have call successors, (30), 12 states have call predecessors, (30), 11 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-09-12 18:01:26,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 164 transitions. [2024-09-12 18:01:26,939 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 164 transitions. Word has length 62 [2024-09-12 18:01:26,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:26,939 INFO L474 AbstractCegarLoop]: Abstraction has 137 states and 164 transitions. [2024-09-12 18:01:26,940 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 2.409090909090909) internal successors, (53), 22 states have internal predecessors, (53), 8 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (17), 8 states have call predecessors, (17), 8 states have call successors, (17) [2024-09-12 18:01:26,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:26,940 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 164 transitions. [2024-09-12 18:01:26,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-09-12 18:01:26,942 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:26,942 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 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 18:01:26,960 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 18:01:27,142 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-09-12 18:01:27,143 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:01:27,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:27,143 INFO L85 PathProgramCache]: Analyzing trace with hash -2095701542, now seen corresponding path program 1 times [2024-09-12 18:01:27,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:27,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884226745] [2024-09-12 18:01:27,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:27,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:27,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:27,213 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:27,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:27,216 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 18:01:27,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:27,218 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-09-12 18:01:27,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:27,220 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:01:27,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:27,222 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 18:01:27,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:27,225 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 18:01:27,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:27,228 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:01:27,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:27,233 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-09-12 18:01:27,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:27,236 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 18:01:27,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:27,241 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 18:01:27,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:27,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884226745] [2024-09-12 18:01:27,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884226745] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:01:27,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [339533759] [2024-09-12 18:01:27,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:27,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:27,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:27,244 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:01:27,246 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-12 18:01:27,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:27,289 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:01:27,290 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:27,342 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 18:01:27,342 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:01:27,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [339533759] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:01:27,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:01:27,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 9 [2024-09-12 18:01:27,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838667397] [2024-09-12 18:01:27,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:01:27,343 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:01:27,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:27,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:01:27,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:01:27,344 INFO L87 Difference]: Start difference. First operand 137 states and 164 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 18:01:27,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:27,427 INFO L93 Difference]: Finished difference Result 137 states and 164 transitions. [2024-09-12 18:01:27,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:01:27,428 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 65 [2024-09-12 18:01:27,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:27,431 INFO L225 Difference]: With dead ends: 137 [2024-09-12 18:01:27,432 INFO L226 Difference]: Without dead ends: 136 [2024-09-12 18:01:27,433 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 81 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 18:01:27,433 INFO L434 NwaCegarLoop]: 41 mSDtfsCounter, 7 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:27,433 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 218 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:01:27,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2024-09-12 18:01:27,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2024-09-12 18:01:27,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 90 states have (on average 1.1555555555555554) internal successors, (104), 95 states have internal predecessors, (104), 30 states have call successors, (30), 12 states have call predecessors, (30), 11 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-09-12 18:01:27,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 163 transitions. [2024-09-12 18:01:27,475 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 163 transitions. Word has length 65 [2024-09-12 18:01:27,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:27,475 INFO L474 AbstractCegarLoop]: Abstraction has 136 states and 163 transitions. [2024-09-12 18:01:27,475 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, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 18:01:27,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:27,476 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 163 transitions. [2024-09-12 18:01:27,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-09-12 18:01:27,477 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:27,478 INFO L216 NwaCegarLoop]: trace histogram [8, 7, 7, 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] [2024-09-12 18:01:27,495 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-09-12 18:01:27,678 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-09-12 18:01:27,679 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 18:01:27,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:27,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1392561078, now seen corresponding path program 2 times [2024-09-12 18:01:27,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:27,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219232336] [2024-09-12 18:01:27,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:27,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:27,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:27,812 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:27,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:27,814 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 18:01:27,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:27,817 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-09-12 18:01:27,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:27,819 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:01:27,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:27,822 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 18:01:27,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:27,824 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 18:01:27,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:27,826 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 18:01:27,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:27,828 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:01:27,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:27,830 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 14 proven. 12 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:01:27,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:27,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219232336] [2024-09-12 18:01:27,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219232336] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:01:27,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802967739] [2024-09-12 18:01:27,831 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:01:27,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:27,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:27,833 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:01:27,835 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-12 18:01:27,886 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:01:27,886 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:01:27,887 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 18:01:27,889 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:28,042 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 14 proven. 12 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:01:28,043 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:01:28,160 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 14 proven. 12 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:01:28,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1802967739] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:01:28,161 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:01:28,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 19 [2024-09-12 18:01:28,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903761775] [2024-09-12 18:01:28,162 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:01:28,162 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-09-12 18:01:28,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:28,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-09-12 18:01:28,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2024-09-12 18:01:28,163 INFO L87 Difference]: Start difference. First operand 136 states and 163 transitions. Second operand has 19 states, 17 states have (on average 3.588235294117647) internal successors, (61), 17 states have internal predecessors, (61), 8 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (17), 8 states have call predecessors, (17), 8 states have call successors, (17) [2024-09-12 18:01:28,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:28,366 INFO L93 Difference]: Finished difference Result 153 states and 178 transitions. [2024-09-12 18:01:28,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:01:28,367 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 3.588235294117647) internal successors, (61), 17 states have internal predecessors, (61), 8 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (17), 8 states have call predecessors, (17), 8 states have call successors, (17) Word has length 65 [2024-09-12 18:01:28,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:28,368 INFO L225 Difference]: With dead ends: 153 [2024-09-12 18:01:28,368 INFO L226 Difference]: Without dead ends: 151 [2024-09-12 18:01:28,369 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 131 SyntacticMatches, 7 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=109, Invalid=491, Unknown=0, NotChecked=0, Total=600 [2024-09-12 18:01:28,370 INFO L434 NwaCegarLoop]: 43 mSDtfsCounter, 103 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:28,370 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 324 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:01:28,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-09-12 18:01:28,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 140. [2024-09-12 18:01:28,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 93 states have (on average 1.1505376344086022) internal successors, (107), 98 states have internal predecessors, (107), 30 states have call successors, (30), 13 states have call predecessors, (30), 12 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-09-12 18:01:28,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 166 transitions. [2024-09-12 18:01:28,401 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 166 transitions. Word has length 65 [2024-09-12 18:01:28,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:28,401 INFO L474 AbstractCegarLoop]: Abstraction has 140 states and 166 transitions. [2024-09-12 18:01:28,402 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 3.588235294117647) internal successors, (61), 17 states have internal predecessors, (61), 8 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (17), 8 states have call predecessors, (17), 8 states have call successors, (17) [2024-09-12 18:01:28,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:28,402 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 166 transitions. [2024-09-12 18:01:28,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-09-12 18:01:28,403 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:28,403 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 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 18:01:28,421 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-09-12 18:01:28,606 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:28,606 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:01:28,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:28,607 INFO L85 PathProgramCache]: Analyzing trace with hash -542238257, now seen corresponding path program 1 times [2024-09-12 18:01:28,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:28,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340598120] [2024-09-12 18:01:28,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:28,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:28,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:28,674 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:28,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:28,677 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 18:01:28,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:28,678 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-09-12 18:01:28,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:28,680 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:01:28,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:28,682 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 18:01:28,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:28,684 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 18:01:28,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:28,686 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:01:28,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:28,688 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-09-12 18:01:28,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:28,689 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 18:01:28,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:28,691 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 18:01:28,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:28,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340598120] [2024-09-12 18:01:28,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340598120] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:01:28,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381036445] [2024-09-12 18:01:28,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:28,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:28,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:28,694 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:01:28,696 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-12 18:01:28,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:28,741 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:01:28,743 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:28,788 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 18:01:28,789 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:01:28,899 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 18:01:28,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [381036445] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:01:28,900 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:01:28,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-09-12 18:01:28,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687948576] [2024-09-12 18:01:28,900 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:01:28,901 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 18:01:28,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:28,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 18:01:28,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:01:28,902 INFO L87 Difference]: Start difference. First operand 140 states and 166 transitions. Second operand has 16 states, 15 states have (on average 3.6) internal successors, (54), 16 states have internal predecessors, (54), 8 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) [2024-09-12 18:01:29,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:29,012 INFO L93 Difference]: Finished difference Result 149 states and 176 transitions. [2024-09-12 18:01:29,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 18:01:29,013 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.6) internal successors, (54), 16 states have internal predecessors, (54), 8 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) Word has length 66 [2024-09-12 18:01:29,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:29,015 INFO L225 Difference]: With dead ends: 149 [2024-09-12 18:01:29,015 INFO L226 Difference]: Without dead ends: 131 [2024-09-12 18:01:29,015 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 142 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 18:01:29,016 INFO L434 NwaCegarLoop]: 38 mSDtfsCounter, 10 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:29,016 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 278 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:01:29,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-09-12 18:01:29,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2024-09-12 18:01:29,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 87 states have (on average 1.1379310344827587) internal successors, (99), 92 states have internal predecessors, (99), 28 states have call successors, (28), 12 states have call predecessors, (28), 11 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-09-12 18:01:29,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 153 transitions. [2024-09-12 18:01:29,035 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 153 transitions. Word has length 66 [2024-09-12 18:01:29,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:29,035 INFO L474 AbstractCegarLoop]: Abstraction has 131 states and 153 transitions. [2024-09-12 18:01:29,035 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.6) internal successors, (54), 16 states have internal predecessors, (54), 8 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) [2024-09-12 18:01:29,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:29,036 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 153 transitions. [2024-09-12 18:01:29,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-09-12 18:01:29,036 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:29,037 INFO L216 NwaCegarLoop]: trace histogram [10, 9, 9, 3, 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] [2024-09-12 18:01:29,054 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-09-12 18:01:29,237 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-09-12 18:01:29,238 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:01:29,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:29,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1429036813, now seen corresponding path program 2 times [2024-09-12 18:01:29,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:29,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943502106] [2024-09-12 18:01:29,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:29,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:29,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:29,462 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:29,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:29,464 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 18:01:29,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:29,468 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-09-12 18:01:29,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:29,472 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:01:29,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:29,475 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 18:01:29,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:29,478 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 18:01:29,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:29,480 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 18:01:29,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:29,482 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:01:29,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:29,484 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 18:01:29,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:29,486 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-09-12 18:01:29,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:29,489 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 18 proven. 16 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:01:29,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:29,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943502106] [2024-09-12 18:01:29,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943502106] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:01:29,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1839986788] [2024-09-12 18:01:29,490 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:01:29,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:29,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:29,492 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:01:29,494 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-12 18:01:29,542 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:01:29,542 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:01:29,543 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 18:01:29,545 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:29,916 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 18 proven. 16 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:01:29,917 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:01:30,258 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 18 proven. 16 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:01:30,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1839986788] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:01:30,259 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:01:30,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 12] total 27 [2024-09-12 18:01:30,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026134065] [2024-09-12 18:01:30,260 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:01:30,261 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-09-12 18:01:30,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:30,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-09-12 18:01:30,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=566, Unknown=0, NotChecked=0, Total=702 [2024-09-12 18:01:30,263 INFO L87 Difference]: Start difference. First operand 131 states and 153 transitions. Second operand has 27 states, 27 states have (on average 2.5185185185185186) internal successors, (68), 25 states have internal predecessors, (68), 11 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (23), 11 states have call predecessors, (23), 11 states have call successors, (23) [2024-09-12 18:01:30,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:30,603 INFO L93 Difference]: Finished difference Result 140 states and 163 transitions. [2024-09-12 18:01:30,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:01:30,603 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.5185185185185186) internal successors, (68), 25 states have internal predecessors, (68), 11 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (23), 11 states have call predecessors, (23), 11 states have call successors, (23) Word has length 77 [2024-09-12 18:01:30,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:30,605 INFO L225 Difference]: With dead ends: 140 [2024-09-12 18:01:30,605 INFO L226 Difference]: Without dead ends: 138 [2024-09-12 18:01:30,606 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 153 SyntacticMatches, 8 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=231, Invalid=959, Unknown=0, NotChecked=0, Total=1190 [2024-09-12 18:01:30,606 INFO L434 NwaCegarLoop]: 36 mSDtfsCounter, 52 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:30,606 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 349 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:01:30,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-09-12 18:01:30,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 137. [2024-09-12 18:01:30,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 90 states have (on average 1.1333333333333333) internal successors, (102), 96 states have internal predecessors, (102), 30 states have call successors, (30), 13 states have call predecessors, (30), 12 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-09-12 18:01:30,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 160 transitions. [2024-09-12 18:01:30,634 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 160 transitions. Word has length 77 [2024-09-12 18:01:30,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:30,634 INFO L474 AbstractCegarLoop]: Abstraction has 137 states and 160 transitions. [2024-09-12 18:01:30,635 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.5185185185185186) internal successors, (68), 25 states have internal predecessors, (68), 11 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (23), 11 states have call predecessors, (23), 11 states have call successors, (23) [2024-09-12 18:01:30,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:30,635 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 160 transitions. [2024-09-12 18:01:30,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-09-12 18:01:30,636 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:30,636 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:01:30,656 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-09-12 18:01:30,837 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-09-12 18:01:30,837 INFO L399 AbstractCegarLoop]: === Iteration 27 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:01:30,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:30,837 INFO L85 PathProgramCache]: Analyzing trace with hash -445522028, now seen corresponding path program 1 times [2024-09-12 18:01:30,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:30,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353283204] [2024-09-12 18:01:30,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:30,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:30,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:30,909 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:30,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:30,911 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 18:01:30,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:30,913 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-09-12 18:01:30,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:30,924 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:01:30,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:30,926 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 18:01:30,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:30,929 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 18:01:30,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:30,930 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 18:01:30,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:30,932 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:01:30,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:30,935 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 18:01:30,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:30,938 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 18:01:30,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:30,940 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 18:01:30,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:30,944 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 18:01:30,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:30,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353283204] [2024-09-12 18:01:30,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353283204] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:01:30,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [575306822] [2024-09-12 18:01:30,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:30,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:30,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:30,947 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:01:30,950 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-12 18:01:30,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:30,998 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:01:31,000 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:31,053 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 18:01:31,053 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:01:31,163 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 18:01:31,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [575306822] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:01:31,163 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:01:31,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-09-12 18:01:31,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057454217] [2024-09-12 18:01:31,164 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:01:31,164 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 18:01:31,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:31,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 18:01:31,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:01:31,165 INFO L87 Difference]: Start difference. First operand 137 states and 160 transitions. Second operand has 16 states, 15 states have (on average 4.4) internal successors, (66), 16 states have internal predecessors, (66), 8 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 8 states have call predecessors, (23), 8 states have call successors, (23) [2024-09-12 18:01:31,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:31,309 INFO L93 Difference]: Finished difference Result 168 states and 208 transitions. [2024-09-12 18:01:31,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 18:01:31,310 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.4) internal successors, (66), 16 states have internal predecessors, (66), 8 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 8 states have call predecessors, (23), 8 states have call successors, (23) Word has length 82 [2024-09-12 18:01:31,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:31,311 INFO L225 Difference]: With dead ends: 168 [2024-09-12 18:01:31,311 INFO L226 Difference]: Without dead ends: 167 [2024-09-12 18:01:31,311 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 178 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 18:01:31,312 INFO L434 NwaCegarLoop]: 42 mSDtfsCounter, 17 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:31,312 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 259 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:01:31,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-09-12 18:01:31,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 159. [2024-09-12 18:01:31,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 104 states have (on average 1.1442307692307692) internal successors, (119), 110 states have internal predecessors, (119), 38 states have call successors, (38), 13 states have call predecessors, (38), 12 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-09-12 18:01:31,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 193 transitions. [2024-09-12 18:01:31,334 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 193 transitions. Word has length 82 [2024-09-12 18:01:31,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:31,334 INFO L474 AbstractCegarLoop]: Abstraction has 159 states and 193 transitions. [2024-09-12 18:01:31,335 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.4) internal successors, (66), 16 states have internal predecessors, (66), 8 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 8 states have call predecessors, (23), 8 states have call successors, (23) [2024-09-12 18:01:31,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:31,335 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 193 transitions. [2024-09-12 18:01:31,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-09-12 18:01:31,336 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:31,336 INFO L216 NwaCegarLoop]: trace histogram [12, 11, 11, 3, 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] [2024-09-12 18:01:31,352 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-09-12 18:01:31,540 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-09-12 18:01:31,541 INFO L399 AbstractCegarLoop]: === Iteration 28 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:01:31,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:31,541 INFO L85 PathProgramCache]: Analyzing trace with hash 976963933, now seen corresponding path program 2 times [2024-09-12 18:01:31,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:31,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001050808] [2024-09-12 18:01:31,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:31,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:31,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:31,723 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:31,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:31,725 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 18:01:31,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:31,726 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-09-12 18:01:31,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:31,728 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:01:31,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:31,734 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 18:01:31,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:31,739 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 18:01:31,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:31,741 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 18:01:31,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:31,743 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:01:31,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:31,744 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 18:01:31,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:31,746 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-09-12 18:01:31,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:31,748 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-09-12 18:01:31,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:31,770 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 18:01:31,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:31,773 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 48 proven. 20 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-09-12 18:01:31,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:31,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001050808] [2024-09-12 18:01:31,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001050808] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:01:31,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263348371] [2024-09-12 18:01:31,774 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:01:31,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:31,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:31,776 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:01:31,777 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-12 18:01:31,828 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:01:31,828 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:01:31,829 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-12 18:01:31,831 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:32,263 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 21 proven. 47 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-09-12 18:01:32,263 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:01:32,712 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 21 proven. 47 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-09-12 18:01:32,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [263348371] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:01:32,712 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:01:32,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 17, 17] total 35 [2024-09-12 18:01:32,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619063868] [2024-09-12 18:01:32,713 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:01:32,713 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-09-12 18:01:32,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:32,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-09-12 18:01:32,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=1019, Unknown=0, NotChecked=0, Total=1190 [2024-09-12 18:01:32,715 INFO L87 Difference]: Start difference. First operand 159 states and 193 transitions. Second operand has 35 states, 32 states have (on average 2.75) internal successors, (88), 33 states have internal predecessors, (88), 16 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 15 states have call predecessors, (33), 16 states have call successors, (33) [2024-09-12 18:01:33,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:33,318 INFO L93 Difference]: Finished difference Result 186 states and 227 transitions. [2024-09-12 18:01:33,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-09-12 18:01:33,318 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 32 states have (on average 2.75) internal successors, (88), 33 states have internal predecessors, (88), 16 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 15 states have call predecessors, (33), 16 states have call successors, (33) Word has length 90 [2024-09-12 18:01:33,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:33,319 INFO L225 Difference]: With dead ends: 186 [2024-09-12 18:01:33,319 INFO L226 Difference]: Without dead ends: 170 [2024-09-12 18:01:33,321 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 179 SyntacticMatches, 4 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 799 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=396, Invalid=2154, Unknown=0, NotChecked=0, Total=2550 [2024-09-12 18:01:33,321 INFO L434 NwaCegarLoop]: 28 mSDtfsCounter, 80 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:33,321 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 509 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:01:33,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-09-12 18:01:33,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 156. [2024-09-12 18:01:33,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 104 states have (on average 1.125) internal successors, (117), 109 states have internal predecessors, (117), 34 states have call successors, (34), 14 states have call predecessors, (34), 13 states have return successors, (33), 32 states have call predecessors, (33), 33 states have call successors, (33) [2024-09-12 18:01:33,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 184 transitions. [2024-09-12 18:01:33,343 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 184 transitions. Word has length 90 [2024-09-12 18:01:33,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:33,343 INFO L474 AbstractCegarLoop]: Abstraction has 156 states and 184 transitions. [2024-09-12 18:01:33,343 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 32 states have (on average 2.75) internal successors, (88), 33 states have internal predecessors, (88), 16 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 15 states have call predecessors, (33), 16 states have call successors, (33) [2024-09-12 18:01:33,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:33,344 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 184 transitions. [2024-09-12 18:01:33,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-09-12 18:01:33,344 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:33,345 INFO L216 NwaCegarLoop]: trace histogram [12, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:01:33,359 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-09-12 18:01:33,548 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-09-12 18:01:33,549 INFO L399 AbstractCegarLoop]: === Iteration 29 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:01:33,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:33,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1232299213, now seen corresponding path program 3 times [2024-09-12 18:01:33,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:33,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165898748] [2024-09-12 18:01:33,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:33,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:33,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:33,769 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:33,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:33,771 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 18:01:33,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:33,774 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-09-12 18:01:33,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:33,777 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:01:33,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:33,779 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 18:01:33,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:33,781 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 18:01:33,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:33,783 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 18:01:33,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:33,785 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:01:33,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:33,787 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 18:01:33,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:33,789 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 18:01:33,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:33,791 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 18:01:33,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:33,810 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 18:01:33,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:33,813 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 48 proven. 40 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-09-12 18:01:33,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:33,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165898748] [2024-09-12 18:01:33,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165898748] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:01:33,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1336016625] [2024-09-12 18:01:33,814 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:01:33,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:33,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:33,817 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:01:33,818 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-09-12 18:01:33,883 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-09-12 18:01:33,883 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:01:33,884 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-09-12 18:01:33,886 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:34,308 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 33 proven. 55 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-09-12 18:01:34,308 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:01:34,574 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 33 proven. 55 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-09-12 18:01:34,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1336016625] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:01:34,574 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:01:34,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 18, 16] total 37 [2024-09-12 18:01:34,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043383051] [2024-09-12 18:01:34,574 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:01:34,575 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-09-12 18:01:34,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:34,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-09-12 18:01:34,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=1181, Unknown=0, NotChecked=0, Total=1332 [2024-09-12 18:01:34,576 INFO L87 Difference]: Start difference. First operand 156 states and 184 transitions. Second operand has 37 states, 35 states have (on average 2.7142857142857144) internal successors, (95), 36 states have internal predecessors, (95), 14 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 14 states have call predecessors, (33), 14 states have call successors, (33) [2024-09-12 18:01:35,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:35,230 INFO L93 Difference]: Finished difference Result 170 states and 198 transitions. [2024-09-12 18:01:35,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-09-12 18:01:35,230 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 35 states have (on average 2.7142857142857144) internal successors, (95), 36 states have internal predecessors, (95), 14 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 14 states have call predecessors, (33), 14 states have call successors, (33) Word has length 93 [2024-09-12 18:01:35,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:35,232 INFO L225 Difference]: With dead ends: 170 [2024-09-12 18:01:35,232 INFO L226 Difference]: Without dead ends: 168 [2024-09-12 18:01:35,233 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 185 SyntacticMatches, 4 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 867 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=409, Invalid=2897, Unknown=0, NotChecked=0, Total=3306 [2024-09-12 18:01:35,233 INFO L434 NwaCegarLoop]: 28 mSDtfsCounter, 126 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:35,233 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 443 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:01:35,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-09-12 18:01:35,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 158. [2024-09-12 18:01:35,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 106 states have (on average 1.1132075471698113) internal successors, (118), 110 states have internal predecessors, (118), 34 states have call successors, (34), 15 states have call predecessors, (34), 14 states have return successors, (33), 32 states have call predecessors, (33), 33 states have call successors, (33) [2024-09-12 18:01:35,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 185 transitions. [2024-09-12 18:01:35,267 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 185 transitions. Word has length 93 [2024-09-12 18:01:35,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:35,267 INFO L474 AbstractCegarLoop]: Abstraction has 158 states and 185 transitions. [2024-09-12 18:01:35,268 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 35 states have (on average 2.7142857142857144) internal successors, (95), 36 states have internal predecessors, (95), 14 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 14 states have call predecessors, (33), 14 states have call successors, (33) [2024-09-12 18:01:35,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:35,268 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 185 transitions. [2024-09-12 18:01:35,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-09-12 18:01:35,269 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:35,269 INFO L216 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2024-09-12 18:01:35,286 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 18:01:35,473 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:35,474 INFO L399 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:01:35,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:35,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1850072738, now seen corresponding path program 2 times [2024-09-12 18:01:35,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:35,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498544707] [2024-09-12 18:01:35,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:35,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:35,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:35,571 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:35,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:35,573 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 18:01:35,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:35,575 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-09-12 18:01:35,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:35,577 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:01:35,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:35,579 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 18:01:35,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:35,580 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 18:01:35,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:35,582 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 18:01:35,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:35,584 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:01:35,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:35,585 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 18:01:35,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:35,596 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 18:01:35,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:35,598 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 18:01:35,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:35,600 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 18:01:35,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:35,602 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 18:01:35,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:35,604 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-09-12 18:01:35,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:35,606 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-09-12 18:01:35,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:35,609 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 18:01:35,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:35,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498544707] [2024-09-12 18:01:35,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498544707] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:01:35,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640330555] [2024-09-12 18:01:35,610 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:01:35,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:35,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:35,611 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:01:35,613 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-09-12 18:01:35,671 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:01:35,672 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:01:35,673 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:01:35,674 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:35,728 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 18:01:35,728 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:01:35,866 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 18:01:35,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1640330555] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:01:35,866 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:01:35,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2024-09-12 18:01:35,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162557034] [2024-09-12 18:01:35,866 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:01:35,866 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-09-12 18:01:35,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:35,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-09-12 18:01:35,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2024-09-12 18:01:35,867 INFO L87 Difference]: Start difference. First operand 158 states and 185 transitions. Second operand has 20 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 20 states have internal predecessors, (80), 10 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (31), 10 states have call predecessors, (31), 10 states have call successors, (31) [2024-09-12 18:01:36,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:36,023 INFO L93 Difference]: Finished difference Result 188 states and 229 transitions. [2024-09-12 18:01:36,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-12 18:01:36,023 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 20 states have internal predecessors, (80), 10 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (31), 10 states have call predecessors, (31), 10 states have call successors, (31) Word has length 109 [2024-09-12 18:01:36,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:36,025 INFO L225 Difference]: With dead ends: 188 [2024-09-12 18:01:36,025 INFO L226 Difference]: Without dead ends: 187 [2024-09-12 18:01:36,025 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 238 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 18:01:36,026 INFO L434 NwaCegarLoop]: 37 mSDtfsCounter, 14 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:36,026 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 351 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:01:36,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-09-12 18:01:36,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 170. [2024-09-12 18:01:36,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 114 states have (on average 1.131578947368421) internal successors, (129), 118 states have internal predecessors, (129), 38 states have call successors, (38), 15 states have call predecessors, (38), 14 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) [2024-09-12 18:01:36,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 204 transitions. [2024-09-12 18:01:36,059 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 204 transitions. Word has length 109 [2024-09-12 18:01:36,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:36,060 INFO L474 AbstractCegarLoop]: Abstraction has 170 states and 204 transitions. [2024-09-12 18:01:36,060 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 20 states have internal predecessors, (80), 10 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (31), 10 states have call predecessors, (31), 10 states have call successors, (31) [2024-09-12 18:01:36,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:36,060 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 204 transitions. [2024-09-12 18:01:36,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-09-12 18:01:36,061 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:36,061 INFO L216 NwaCegarLoop]: trace histogram [16, 16, 16, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2024-09-12 18:01:36,079 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-09-12 18:01:36,262 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,18 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:36,262 INFO L399 AbstractCegarLoop]: === Iteration 31 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:01:36,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:36,262 INFO L85 PathProgramCache]: Analyzing trace with hash 812783073, now seen corresponding path program 2 times [2024-09-12 18:01:36,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:36,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842348675] [2024-09-12 18:01:36,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:36,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:36,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:36,419 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:36,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:36,421 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 18:01:36,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:36,423 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-09-12 18:01:36,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:36,424 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:01:36,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:36,426 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 18:01:36,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:36,427 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 18:01:36,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:36,428 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 18:01:36,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:36,430 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:01:36,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:36,431 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 18:01:36,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:36,433 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 18:01:36,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:36,434 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 18:01:36,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:36,436 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 18:01:36,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:36,437 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 18:01:36,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:36,439 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-09-12 18:01:36,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:36,440 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-09-12 18:01:36,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:36,442 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 18:01:36,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:36,443 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-09-12 18:01:36,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:36,445 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-09-12 18:01:36,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:36,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842348675] [2024-09-12 18:01:36,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842348675] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:01:36,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [179336007] [2024-09-12 18:01:36,445 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:01:36,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:36,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:36,447 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:01:36,448 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-09-12 18:01:36,505 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:01:36,505 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:01:36,506 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 18:01:36,508 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:36,577 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-09-12 18:01:36,577 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:01:36,790 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-09-12 18:01:36,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [179336007] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:01:36,791 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:01:36,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2024-09-12 18:01:36,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382540725] [2024-09-12 18:01:36,791 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:01:36,791 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-12 18:01:36,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:36,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-12 18:01:36,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=429, Unknown=0, NotChecked=0, Total=552 [2024-09-12 18:01:36,792 INFO L87 Difference]: Start difference. First operand 170 states and 204 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, (36), 1 states have call predecessors, (36), 1 states have return successors, (35), 12 states have call predecessors, (35), 12 states have call successors, (35) [2024-09-12 18:01:36,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:36,988 INFO L93 Difference]: Finished difference Result 195 states and 236 transitions. [2024-09-12 18:01:36,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-09-12 18:01:36,989 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, (36), 1 states have call predecessors, (36), 1 states have return successors, (35), 12 states have call predecessors, (35), 12 states have call successors, (35) Word has length 122 [2024-09-12 18:01:36,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:36,990 INFO L225 Difference]: With dead ends: 195 [2024-09-12 18:01:36,990 INFO L226 Difference]: Without dead ends: 168 [2024-09-12 18:01:36,991 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 266 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 18:01:36,991 INFO L434 NwaCegarLoop]: 36 mSDtfsCounter, 30 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:36,991 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 297 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:01:36,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-09-12 18:01:37,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 163. [2024-09-12 18:01:37,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 111 states have (on average 1.063063063063063) internal successors, (118), 114 states have internal predecessors, (118), 34 states have call successors, (34), 15 states have call predecessors, (34), 14 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-09-12 18:01:37,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 185 transitions. [2024-09-12 18:01:37,020 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 185 transitions. Word has length 122 [2024-09-12 18:01:37,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:37,020 INFO L474 AbstractCegarLoop]: Abstraction has 163 states and 185 transitions. [2024-09-12 18:01:37,020 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, (36), 1 states have call predecessors, (36), 1 states have return successors, (35), 12 states have call predecessors, (35), 12 states have call successors, (35) [2024-09-12 18:01:37,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:37,021 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 185 transitions. [2024-09-12 18:01:37,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-09-12 18:01:37,021 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:37,021 INFO L216 NwaCegarLoop]: trace histogram [18, 18, 18, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:01:37,038 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 18:01:37,222 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,19 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:37,222 INFO L399 AbstractCegarLoop]: === Iteration 32 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:01:37,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:37,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1152456101, now seen corresponding path program 2 times [2024-09-12 18:01:37,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:37,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209917157] [2024-09-12 18:01:37,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:37,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:37,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,356 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:37,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,358 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 18:01:37,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,361 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-09-12 18:01:37,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,363 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:01:37,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,365 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 18:01:37,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,368 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 18:01:37,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,373 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 18:01:37,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,375 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:01:37,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,378 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 18:01:37,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,380 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 18:01:37,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,382 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 18:01:37,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,383 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 18:01:37,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,385 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 18:01:37,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,386 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 18:01:37,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,388 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-09-12 18:01:37,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,389 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-09-12 18:01:37,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,392 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-09-12 18:01:37,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,394 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-09-12 18:01:37,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,395 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-09-12 18:01:37,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,397 INFO L134 CoverageAnalysis]: Checked inductivity of 724 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 18:01:37,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:37,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209917157] [2024-09-12 18:01:37,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209917157] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:01:37,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [6949490] [2024-09-12 18:01:37,398 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:01:37,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:37,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:37,400 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:01:37,402 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-09-12 18:01:37,463 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:01:37,464 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:01:37,465 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 18:01:37,467 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:37,544 INFO L134 CoverageAnalysis]: Checked inductivity of 724 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 18:01:37,544 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:01:37,783 INFO L134 CoverageAnalysis]: Checked inductivity of 724 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 18:01:37,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [6949490] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:01:37,783 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:01:37,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2024-09-12 18:01:37,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252192057] [2024-09-12 18:01:37,783 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:01:37,784 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-12 18:01:37,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:37,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-12 18:01:37,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2024-09-12 18:01:37,785 INFO L87 Difference]: Start difference. First operand 163 states and 185 transitions. Second operand has 24 states, 23 states have (on average 4.521739130434782) internal successors, (104), 24 states have internal predecessors, (104), 12 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-09-12 18:01:37,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:37,951 INFO L93 Difference]: Finished difference Result 247 states and 301 transitions. [2024-09-12 18:01:37,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-12 18:01:37,951 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.521739130434782) internal successors, (104), 24 states have internal predecessors, (104), 12 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) Word has length 140 [2024-09-12 18:01:37,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:37,953 INFO L225 Difference]: With dead ends: 247 [2024-09-12 18:01:37,953 INFO L226 Difference]: Without dead ends: 246 [2024-09-12 18:01:37,954 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2024-09-12 18:01:37,954 INFO L434 NwaCegarLoop]: 43 mSDtfsCounter, 32 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:37,954 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 405 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:01:37,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2024-09-12 18:01:37,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 206. [2024-09-12 18:01:38,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 140 states have (on average 1.1071428571428572) internal successors, (155), 143 states have internal predecessors, (155), 48 states have call successors, (48), 15 states have call predecessors, (48), 14 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-09-12 18:01:38,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 250 transitions. [2024-09-12 18:01:38,002 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 250 transitions. Word has length 140 [2024-09-12 18:01:38,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:38,005 INFO L474 AbstractCegarLoop]: Abstraction has 206 states and 250 transitions. [2024-09-12 18:01:38,005 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.521739130434782) internal successors, (104), 24 states have internal predecessors, (104), 12 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-09-12 18:01:38,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:38,005 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 250 transitions. [2024-09-12 18:01:38,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-09-12 18:01:38,006 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:38,006 INFO L216 NwaCegarLoop]: trace histogram [26, 26, 26, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:01:38,026 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-09-12 18:01:38,207 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-09-12 18:01:38,207 INFO L399 AbstractCegarLoop]: === Iteration 33 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:01:38,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:38,207 INFO L85 PathProgramCache]: Analyzing trace with hash 783135160, now seen corresponding path program 2 times [2024-09-12 18:01:38,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:38,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367133873] [2024-09-12 18:01:38,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:38,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:38,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,411 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:38,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,412 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 18:01:38,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,414 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-09-12 18:01:38,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,415 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:01:38,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,417 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 18:01:38,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,418 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 18:01:38,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,419 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 18:01:38,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,421 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:01:38,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,422 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 18:01:38,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,424 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 18:01:38,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,425 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 18:01:38,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,426 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 18:01:38,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,428 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 18:01:38,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,429 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 18:01:38,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,430 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-09-12 18:01:38,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,432 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-09-12 18:01:38,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,433 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-09-12 18:01:38,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,435 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-09-12 18:01:38,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,436 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-09-12 18:01:38,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,438 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-09-12 18:01:38,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,439 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-09-12 18:01:38,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,441 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-09-12 18:01:38,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,442 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-09-12 18:01:38,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,444 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-09-12 18:01:38,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,445 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-12 18:01:38,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,447 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-09-12 18:01:38,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,448 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-09-12 18:01:38,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,450 INFO L134 CoverageAnalysis]: Checked inductivity of 1528 backedges. 0 proven. 228 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-09-12 18:01:38,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:38,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367133873] [2024-09-12 18:01:38,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367133873] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:01:38,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573810104] [2024-09-12 18:01:38,451 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:01:38,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:38,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:38,452 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:01:38,455 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-09-12 18:01:38,533 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:01:38,533 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:01:38,537 INFO L262 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 18:01:38,540 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:38,653 INFO L134 CoverageAnalysis]: Checked inductivity of 1528 backedges. 0 proven. 228 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-09-12 18:01:38,653 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:01:39,000 INFO L134 CoverageAnalysis]: Checked inductivity of 1528 backedges. 0 proven. 228 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-09-12 18:01:39,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1573810104] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:01:39,000 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:01:39,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 31 [2024-09-12 18:01:39,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323269216] [2024-09-12 18:01:39,000 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:01:39,001 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-09-12 18:01:39,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:39,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-09-12 18:01:39,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2024-09-12 18:01:39,002 INFO L87 Difference]: Start difference. First operand 206 states and 250 transitions. Second operand has 32 states, 31 states have (on average 4.193548387096774) internal successors, (130), 32 states have internal predecessors, (130), 16 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (55), 16 states have call predecessors, (55), 16 states have call successors, (55) [2024-09-12 18:01:39,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:39,230 INFO L93 Difference]: Finished difference Result 277 states and 362 transitions. [2024-09-12 18:01:39,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-09-12 18:01:39,230 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 4.193548387096774) internal successors, (130), 32 states have internal predecessors, (130), 16 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (55), 16 states have call predecessors, (55), 16 states have call successors, (55) Word has length 194 [2024-09-12 18:01:39,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:39,233 INFO L225 Difference]: With dead ends: 277 [2024-09-12 18:01:39,233 INFO L226 Difference]: Without dead ends: 276 [2024-09-12 18:01:39,233 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 426 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 18:01:39,234 INFO L434 NwaCegarLoop]: 40 mSDtfsCounter, 36 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:39,234 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 347 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:01:39,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2024-09-12 18:01:39,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 252. [2024-09-12 18:01:39,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 170 states have (on average 1.1294117647058823) internal successors, (192), 173 states have internal predecessors, (192), 64 states have call successors, (64), 15 states have call predecessors, (64), 14 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-09-12 18:01:39,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 319 transitions. [2024-09-12 18:01:39,288 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 319 transitions. Word has length 194 [2024-09-12 18:01:39,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:39,289 INFO L474 AbstractCegarLoop]: Abstraction has 252 states and 319 transitions. [2024-09-12 18:01:39,289 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 4.193548387096774) internal successors, (130), 32 states have internal predecessors, (130), 16 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (55), 16 states have call predecessors, (55), 16 states have call successors, (55) [2024-09-12 18:01:39,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:39,289 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 319 transitions. [2024-09-12 18:01:39,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-09-12 18:01:39,290 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:39,290 INFO L216 NwaCegarLoop]: trace histogram [30, 30, 30, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:01:39,304 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-09-12 18:01:39,492 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-09-12 18:01:39,493 INFO L399 AbstractCegarLoop]: === Iteration 34 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:01:39,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:39,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1919166978, now seen corresponding path program 3 times [2024-09-12 18:01:39,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:39,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011602266] [2024-09-12 18:01:39,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:39,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:39,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:39,766 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:39,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:39,768 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 18:01:39,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:39,769 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-09-12 18:01:39,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:39,771 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:01:39,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:39,772 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 18:01:39,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:39,773 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 18:01:39,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:39,775 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 18:01:39,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:39,776 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:01:39,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:39,777 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 18:01:39,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:39,779 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 18:01:39,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:39,780 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 18:01:39,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:39,781 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 18:01:39,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:39,783 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 18:01:39,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:39,784 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 18:01:39,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:39,785 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-09-12 18:01:39,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:39,787 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-09-12 18:01:39,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:39,789 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-09-12 18:01:39,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:39,790 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-09-12 18:01:39,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:39,791 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-09-12 18:01:39,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:39,793 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-09-12 18:01:39,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:39,794 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-09-12 18:01:39,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:39,795 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-09-12 18:01:39,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:39,797 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-09-12 18:01:39,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:39,798 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-09-12 18:01:39,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:39,800 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-12 18:01:39,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:39,801 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-09-12 18:01:39,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:39,803 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-09-12 18:01:39,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:39,804 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-09-12 18:01:39,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:39,806 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-09-12 18:01:39,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:39,807 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-09-12 18:01:39,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:39,809 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-09-12 18:01:39,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:39,811 INFO L134 CoverageAnalysis]: Checked inductivity of 2006 backedges. 0 proven. 266 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2024-09-12 18:01:39,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:39,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011602266] [2024-09-12 18:01:39,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011602266] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:01:39,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377749031] [2024-09-12 18:01:39,812 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:01:39,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:39,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:39,814 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:01:39,815 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-09-12 18:01:39,863 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 18:01:39,863 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:01:39,864 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:01:39,867 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:40,030 INFO L134 CoverageAnalysis]: Checked inductivity of 2006 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 1919 trivial. 0 not checked. [2024-09-12 18:01:40,030 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:01:40,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1377749031] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:01:40,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:01:40,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [17] total 22 [2024-09-12 18:01:40,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116493242] [2024-09-12 18:01:40,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:01:40,031 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:01:40,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:40,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:01:40,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=405, Unknown=0, NotChecked=0, Total=506 [2024-09-12 18:01:40,031 INFO L87 Difference]: Start difference. First operand 252 states and 319 transitions. Second operand has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:01:40,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:40,158 INFO L93 Difference]: Finished difference Result 252 states and 319 transitions. [2024-09-12 18:01:40,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:01:40,159 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), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 221 [2024-09-12 18:01:40,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:40,161 INFO L225 Difference]: With dead ends: 252 [2024-09-12 18:01:40,162 INFO L226 Difference]: Without dead ends: 251 [2024-09-12 18:01:40,162 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=109, Invalid=491, Unknown=0, NotChecked=0, Total=600 [2024-09-12 18:01:40,162 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 14 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:40,163 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 122 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:01:40,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2024-09-12 18:01:40,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251. [2024-09-12 18:01:40,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 170 states have (on average 1.1235294117647059) internal successors, (191), 172 states have internal predecessors, (191), 64 states have call successors, (64), 15 states have call predecessors, (64), 14 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-09-12 18:01:40,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 318 transitions. [2024-09-12 18:01:40,218 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 318 transitions. Word has length 221 [2024-09-12 18:01:40,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:40,219 INFO L474 AbstractCegarLoop]: Abstraction has 251 states and 318 transitions. [2024-09-12 18:01:40,219 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), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:01:40,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:40,219 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 318 transitions. [2024-09-12 18:01:40,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2024-09-12 18:01:40,220 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:40,221 INFO L216 NwaCegarLoop]: trace histogram [32, 32, 32, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 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 18:01:40,233 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-09-12 18:01:40,421 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,22 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:40,421 INFO L399 AbstractCegarLoop]: === Iteration 35 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:01:40,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:40,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1938164731, now seen corresponding path program 3 times [2024-09-12 18:01:40,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:40,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073343434] [2024-09-12 18:01:40,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:40,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:40,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:40,740 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:40,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:40,742 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 18:01:40,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:40,743 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-09-12 18:01:40,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:40,745 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:01:40,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:40,746 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 18:01:40,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:40,748 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 18:01:40,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:40,749 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 18:01:40,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:40,750 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:01:40,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:40,752 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 18:01:40,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:40,753 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 18:01:40,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:40,754 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 18:01:40,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:40,756 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 18:01:40,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:40,757 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 18:01:40,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:40,759 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 18:01:40,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:40,760 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-09-12 18:01:40,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:40,761 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-09-12 18:01:40,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:40,763 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-09-12 18:01:40,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:40,764 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-09-12 18:01:40,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:40,765 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-09-12 18:01:40,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:40,767 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-09-12 18:01:40,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:40,768 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-09-12 18:01:40,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:40,770 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-09-12 18:01:40,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:40,771 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-09-12 18:01:40,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:40,772 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-09-12 18:01:40,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:40,774 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-12 18:01:40,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:40,775 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-09-12 18:01:40,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:40,776 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-09-12 18:01:40,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:40,778 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-09-12 18:01:40,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:40,779 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-09-12 18:01:40,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:40,781 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-09-12 18:01:40,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:40,782 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-09-12 18:01:40,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:40,784 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-09-12 18:01:40,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:40,786 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-09-12 18:01:40,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:40,788 INFO L134 CoverageAnalysis]: Checked inductivity of 2250 backedges. 0 proven. 266 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2024-09-12 18:01:40,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:40,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073343434] [2024-09-12 18:01:40,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073343434] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:01:40,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079935615] [2024-09-12 18:01:40,789 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:01:40,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:40,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:40,791 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:01:40,792 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-09-12 18:01:40,837 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 18:01:40,837 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:01:40,837 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:01:40,840 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:40,994 INFO L134 CoverageAnalysis]: Checked inductivity of 2250 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 2157 trivial. 0 not checked. [2024-09-12 18:01:40,994 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:01:40,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2079935615] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:01:40,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:01:40,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [19] total 24 [2024-09-12 18:01:40,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804712346] [2024-09-12 18:01:40,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:01:40,995 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:01:40,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:40,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:01:40,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=486, Unknown=0, NotChecked=0, Total=600 [2024-09-12 18:01:40,996 INFO L87 Difference]: Start difference. First operand 251 states and 318 transitions. Second operand has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 2 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:01:41,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:41,118 INFO L93 Difference]: Finished difference Result 251 states and 318 transitions. [2024-09-12 18:01:41,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:01:41,118 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 2 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 234 [2024-09-12 18:01:41,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:41,120 INFO L225 Difference]: With dead ends: 251 [2024-09-12 18:01:41,120 INFO L226 Difference]: Without dead ends: 236 [2024-09-12 18:01:41,120 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=580, Unknown=0, NotChecked=0, Total=702 [2024-09-12 18:01:41,121 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 10 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:41,121 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 121 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:01:41,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-09-12 18:01:41,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2024-09-12 18:01:41,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 161 states have (on average 1.031055900621118) internal successors, (166), 162 states have internal predecessors, (166), 60 states have call successors, (60), 14 states have call predecessors, (60), 13 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-09-12 18:01:41,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 285 transitions. [2024-09-12 18:01:41,167 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 285 transitions. Word has length 234 [2024-09-12 18:01:41,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:41,167 INFO L474 AbstractCegarLoop]: Abstraction has 236 states and 285 transitions. [2024-09-12 18:01:41,168 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 2 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:01:41,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:41,168 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 285 transitions. [2024-09-12 18:01:41,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2024-09-12 18:01:41,169 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:41,169 INFO L216 NwaCegarLoop]: trace histogram [42, 42, 42, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:01:41,184 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 18:01:41,370 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-09-12 18:01:41,370 INFO L399 AbstractCegarLoop]: === Iteration 36 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:01:41,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:41,370 INFO L85 PathProgramCache]: Analyzing trace with hash 249656411, now seen corresponding path program 3 times [2024-09-12 18:01:41,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:41,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684871138] [2024-09-12 18:01:41,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:41,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:41,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,823 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:41,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,825 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 18:01:41,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,826 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-09-12 18:01:41,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,828 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:01:41,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,829 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 18:01:41,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,830 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 18:01:41,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,831 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 18:01:41,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,833 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:01:41,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,835 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 18:01:41,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,836 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 18:01:41,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,838 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 18:01:41,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,839 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 18:01:41,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,841 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 18:01:41,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,844 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 18:01:41,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,845 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-09-12 18:01:41,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,849 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-09-12 18:01:41,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,852 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-09-12 18:01:41,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,853 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-09-12 18:01:41,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,855 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-09-12 18:01:41,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,856 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-09-12 18:01:41,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,858 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-09-12 18:01:41,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,861 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-09-12 18:01:41,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,862 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-09-12 18:01:41,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,864 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-09-12 18:01:41,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,865 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-12 18:01:41,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,870 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-09-12 18:01:41,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,871 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-09-12 18:01:41,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,873 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-09-12 18:01:41,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,874 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-09-12 18:01:41,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,876 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-09-12 18:01:41,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,878 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-09-12 18:01:41,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,881 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-09-12 18:01:41,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,882 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2024-09-12 18:01:41,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,884 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-09-12 18:01:41,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,885 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-09-12 18:01:41,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,887 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2024-09-12 18:01:41,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,888 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-09-12 18:01:41,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,892 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-09-12 18:01:41,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,893 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2024-09-12 18:01:41,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,895 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2024-09-12 18:01:41,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,896 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2024-09-12 18:01:41,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,898 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2024-09-12 18:01:41,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,899 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2024-09-12 18:01:41,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,902 INFO L134 CoverageAnalysis]: Checked inductivity of 4084 backedges. 0 proven. 640 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-09-12 18:01:41,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:41,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684871138] [2024-09-12 18:01:41,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684871138] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:01:41,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632244524] [2024-09-12 18:01:41,902 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:01:41,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:41,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:41,904 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 18:01:41,905 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 18:01:41,962 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-09-12 18:01:41,962 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:01:41,963 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:01:41,967 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:42,173 INFO L134 CoverageAnalysis]: Checked inductivity of 4084 backedges. 117 proven. 106 refuted. 0 times theorem prover too weak. 3861 trivial. 0 not checked. [2024-09-12 18:01:42,174 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:01:42,471 INFO L134 CoverageAnalysis]: Checked inductivity of 4084 backedges. 117 proven. 106 refuted. 0 times theorem prover too weak. 3861 trivial. 0 not checked. [2024-09-12 18:01:42,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1632244524] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:01:42,471 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:01:42,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 6, 6] total 29 [2024-09-12 18:01:42,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772801214] [2024-09-12 18:01:42,472 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:01:42,473 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-09-12 18:01:42,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:42,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-09-12 18:01:42,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=679, Unknown=0, NotChecked=0, Total=870 [2024-09-12 18:01:42,474 INFO L87 Difference]: Start difference. First operand 236 states and 285 transitions. Second operand has 30 states, 29 states have (on average 4.310344827586207) internal successors, (125), 30 states have internal predecessors, (125), 14 states have call successors, (50), 1 states have call predecessors, (50), 2 states have return successors, (50), 14 states have call predecessors, (50), 14 states have call successors, (50) [2024-09-12 18:01:42,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:42,975 INFO L93 Difference]: Finished difference Result 236 states and 285 transitions. [2024-09-12 18:01:42,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-09-12 18:01:42,975 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 4.310344827586207) internal successors, (125), 30 states have internal predecessors, (125), 14 states have call successors, (50), 1 states have call predecessors, (50), 2 states have return successors, (50), 14 states have call predecessors, (50), 14 states have call successors, (50) Word has length 308 [2024-09-12 18:01:42,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:42,977 INFO L225 Difference]: With dead ends: 236 [2024-09-12 18:01:42,977 INFO L226 Difference]: Without dead ends: 235 [2024-09-12 18:01:42,979 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 748 GetRequests, 694 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=551, Invalid=2311, Unknown=0, NotChecked=0, Total=2862 [2024-09-12 18:01:42,979 INFO L434 NwaCegarLoop]: 19 mSDtfsCounter, 2 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:42,979 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 205 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:01:42,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2024-09-12 18:01:43,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 235. [2024-09-12 18:01:43,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 161 states have (on average 1.0062111801242235) internal successors, (162), 161 states have internal predecessors, (162), 60 states have call successors, (60), 14 states have call predecessors, (60), 13 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-09-12 18:01:43,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 281 transitions. [2024-09-12 18:01:43,032 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 281 transitions. Word has length 308 [2024-09-12 18:01:43,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:43,033 INFO L474 AbstractCegarLoop]: Abstraction has 235 states and 281 transitions. [2024-09-12 18:01:43,034 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 4.310344827586207) internal successors, (125), 30 states have internal predecessors, (125), 14 states have call successors, (50), 1 states have call predecessors, (50), 2 states have return successors, (50), 14 states have call predecessors, (50), 14 states have call successors, (50) [2024-09-12 18:01:43,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:43,034 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 281 transitions. [2024-09-12 18:01:43,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2024-09-12 18:01:43,037 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:43,037 INFO L216 NwaCegarLoop]: trace histogram [58, 58, 58, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:01:43,055 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 18:01:43,237 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-09-12 18:01:43,238 INFO L399 AbstractCegarLoop]: === Iteration 37 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:01:43,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:43,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1645538816, now seen corresponding path program 3 times [2024-09-12 18:01:43,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:43,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41133014] [2024-09-12 18:01:43,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:43,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:43,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:43,941 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:43,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:43,943 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 18:01:43,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:43,944 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-09-12 18:01:43,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:43,946 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:01:43,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:43,948 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 18:01:43,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:43,950 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 18:01:43,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:43,951 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 18:01:43,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:43,953 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:01:43,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:43,954 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 18:01:43,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:43,955 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 18:01:43,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:43,957 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 18:01:43,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:43,958 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 18:01:43,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:43,960 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 18:01:43,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:43,961 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 18:01:43,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:43,962 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-09-12 18:01:43,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:43,964 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-09-12 18:01:43,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:43,965 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-09-12 18:01:43,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:43,966 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-09-12 18:01:43,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:43,967 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-09-12 18:01:43,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:43,969 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-09-12 18:01:43,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:43,970 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-09-12 18:01:43,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:43,972 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-09-12 18:01:43,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:43,973 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-09-12 18:01:43,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:43,974 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-09-12 18:01:43,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:43,976 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-12 18:01:43,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:43,977 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-09-12 18:01:43,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:43,978 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-09-12 18:01:43,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:43,980 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-09-12 18:01:43,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:43,981 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-09-12 18:01:43,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:43,983 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-09-12 18:01:43,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:43,984 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-09-12 18:01:43,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:43,986 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-09-12 18:01:43,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:43,987 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2024-09-12 18:01:43,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:43,989 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-09-12 18:01:43,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:43,990 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-09-12 18:01:43,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:43,991 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2024-09-12 18:01:43,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:43,993 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-09-12 18:01:43,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:43,994 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-09-12 18:01:43,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:43,996 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2024-09-12 18:01:43,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:43,997 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2024-09-12 18:01:43,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:43,999 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2024-09-12 18:01:43,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:44,000 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2024-09-12 18:01:44,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:44,001 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2024-09-12 18:01:44,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:44,002 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-09-12 18:01:44,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:44,003 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2024-09-12 18:01:44,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:44,004 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2024-09-12 18:01:44,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:44,005 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2024-09-12 18:01:44,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:44,007 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2024-09-12 18:01:44,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:44,008 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2024-09-12 18:01:44,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:44,009 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2024-09-12 18:01:44,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:44,011 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2024-09-12 18:01:44,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:44,012 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-09-12 18:01:44,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:44,014 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2024-09-12 18:01:44,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:44,015 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2024-09-12 18:01:44,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:44,017 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2024-09-12 18:01:44,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:44,019 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2024-09-12 18:01:44,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:44,020 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2024-09-12 18:01:44,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:44,022 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2024-09-12 18:01:44,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:44,023 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2024-09-12 18:01:44,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:44,027 INFO L134 CoverageAnalysis]: Checked inductivity of 7816 backedges. 0 proven. 1204 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2024-09-12 18:01:44,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:44,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41133014] [2024-09-12 18:01:44,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41133014] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:01:44,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [46889851] [2024-09-12 18:01:44,028 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:01:44,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:44,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:44,031 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 18:01:44,032 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 18:01:44,094 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 18:01:44,094 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:01:44,095 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:01:44,100 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:44,387 INFO L134 CoverageAnalysis]: Checked inductivity of 7816 backedges. 171 proven. 42 refuted. 0 times theorem prover too weak. 7603 trivial. 0 not checked. [2024-09-12 18:01:44,387 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:01:44,817 INFO L134 CoverageAnalysis]: Checked inductivity of 7816 backedges. 171 proven. 42 refuted. 0 times theorem prover too weak. 7603 trivial. 0 not checked. [2024-09-12 18:01:44,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [46889851] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:01:44,818 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:01:44,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 7, 7] total 42 [2024-09-12 18:01:44,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67415601] [2024-09-12 18:01:44,818 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:01:44,819 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-09-12 18:01:44,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:44,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-09-12 18:01:44,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=359, Invalid=1447, Unknown=0, NotChecked=0, Total=1806 [2024-09-12 18:01:44,821 INFO L87 Difference]: Start difference. First operand 235 states and 281 transitions. Second operand has 43 states, 42 states have (on average 3.9761904761904763) internal successors, (167), 41 states have internal predecessors, (167), 18 states have call successors, (68), 1 states have call predecessors, (68), 2 states have return successors, (69), 20 states have call predecessors, (69), 18 states have call successors, (69) [2024-09-12 18:01:45,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:45,736 INFO L93 Difference]: Finished difference Result 256 states and 311 transitions. [2024-09-12 18:01:45,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-09-12 18:01:45,737 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 42 states have (on average 3.9761904761904763) internal successors, (167), 41 states have internal predecessors, (167), 18 states have call successors, (68), 1 states have call predecessors, (68), 2 states have return successors, (69), 20 states have call predecessors, (69), 18 states have call successors, (69) Word has length 418 [2024-09-12 18:01:45,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:45,738 INFO L225 Difference]: With dead ends: 256 [2024-09-12 18:01:45,738 INFO L226 Difference]: Without dead ends: 0 [2024-09-12 18:01:45,742 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1019 GetRequests, 943 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1029 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1161, Invalid=4845, Unknown=0, NotChecked=0, Total=6006 [2024-09-12 18:01:45,742 INFO L434 NwaCegarLoop]: 13 mSDtfsCounter, 286 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:45,742 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 160 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:01:45,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-12 18:01:45,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-12 18:01:45,743 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 18:01:45,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-12 18:01:45,743 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 418 [2024-09-12 18:01:45,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:45,744 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-12 18:01:45,744 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 42 states have (on average 3.9761904761904763) internal successors, (167), 41 states have internal predecessors, (167), 18 states have call successors, (68), 1 states have call predecessors, (68), 2 states have return successors, (69), 20 states have call predecessors, (69), 18 states have call successors, (69) [2024-09-12 18:01:45,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:45,744 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-12 18:01:45,745 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-12 18:01:45,747 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 11 remaining) [2024-09-12 18:01:45,748 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 11 remaining) [2024-09-12 18:01:45,748 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 11 remaining) [2024-09-12 18:01:45,748 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 11 remaining) [2024-09-12 18:01:45,748 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 11 remaining) [2024-09-12 18:01:45,749 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 11 remaining) [2024-09-12 18:01:45,749 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 11 remaining) [2024-09-12 18:01:45,749 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 11 remaining) [2024-09-12 18:01:45,749 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 11 remaining) [2024-09-12 18:01:45,749 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 11 remaining) [2024-09-12 18:01:45,750 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 11 remaining) [2024-09-12 18:01:45,766 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 18:01:45,950 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-09-12 18:01:45,954 INFO L408 BasicCegarLoop]: Path program histogram: [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 18:01:45,956 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-09-12 18:01:57,730 WARN L293 SmtUtils]: Spent 9.93s on a formula simplification. DAG size of input: 123 DAG size of output: 127 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-09-12 18:02:12,808 WARN L293 SmtUtils]: Spent 15.01s on a formula simplification. DAG size of input: 94 DAG size of output: 125 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-09-12 18:02:22,221 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-12 18:02:22,236 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.09 06:02:22 BoogieIcfgContainer [2024-09-12 18:02:22,237 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-12 18:02:22,237 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-09-12 18:02:22,237 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-09-12 18:02:22,237 INFO L274 PluginConnector]: Witness Printer initialized [2024-09-12 18:02:22,238 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:01:17" (3/4) ... [2024-09-12 18:02:22,239 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-09-12 18:02:22,242 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2024-09-12 18:02:22,243 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2024-09-12 18:02:22,243 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-09-12 18:02:22,246 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2024-09-12 18:02:22,247 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-09-12 18:02:22,247 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-09-12 18:02:22,247 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-09-12 18:02:22,325 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.graphml [2024-09-12 18:02:22,325 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml [2024-09-12 18:02:22,325 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-09-12 18:02:22,326 INFO L158 Benchmark]: Toolchain (without parser) took 65726.36ms. Allocated memory was 69.2MB in the beginning and 524.3MB in the end (delta: 455.1MB). Free memory was 46.4MB in the beginning and 251.1MB in the end (delta: -204.6MB). Peak memory consumption was 251.9MB. Max. memory is 16.1GB. [2024-09-12 18:02:22,326 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 69.2MB. Free memory was 45.6MB in the beginning and 45.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 18:02:22,326 INFO L158 Benchmark]: CACSL2BoogieTranslator took 254.15ms. Allocated memory is still 69.2MB. Free memory was 46.2MB in the beginning and 34.6MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-12 18:02:22,326 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.63ms. Allocated memory is still 69.2MB. Free memory was 34.6MB in the beginning and 33.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-12 18:02:22,326 INFO L158 Benchmark]: Boogie Preprocessor took 46.75ms. Allocated memory is still 69.2MB. Free memory was 33.4MB in the beginning and 31.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-12 18:02:22,327 INFO L158 Benchmark]: RCFGBuilder took 493.36ms. Allocated memory was 69.2MB in the beginning and 98.6MB in the end (delta: 29.4MB). Free memory was 31.7MB in the beginning and 66.6MB in the end (delta: -34.8MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2024-09-12 18:02:22,327 INFO L158 Benchmark]: TraceAbstraction took 64815.80ms. Allocated memory was 98.6MB in the beginning and 524.3MB in the end (delta: 425.7MB). Free memory was 66.0MB in the beginning and 256.3MB in the end (delta: -190.3MB). Peak memory consumption was 309.3MB. Max. memory is 16.1GB. [2024-09-12 18:02:22,327 INFO L158 Benchmark]: Witness Printer took 88.27ms. Allocated memory is still 524.3MB. Free memory was 256.3MB in the beginning and 251.1MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-12 18:02:22,328 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 69.2MB. Free memory was 45.6MB in the beginning and 45.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 254.15ms. Allocated memory is still 69.2MB. Free memory was 46.2MB in the beginning and 34.6MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.63ms. Allocated memory is still 69.2MB. Free memory was 34.6MB in the beginning and 33.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.75ms. Allocated memory is still 69.2MB. Free memory was 33.4MB in the beginning and 31.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 493.36ms. Allocated memory was 69.2MB in the beginning and 98.6MB in the end (delta: 29.4MB). Free memory was 31.7MB in the beginning and 66.6MB in the end (delta: -34.8MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. * TraceAbstraction took 64815.80ms. Allocated memory was 98.6MB in the beginning and 524.3MB in the end (delta: 425.7MB). Free memory was 66.0MB in the beginning and 256.3MB in the end (delta: -190.3MB). Peak memory consumption was 309.3MB. Max. memory is 16.1GB. * Witness Printer took 88.27ms. Allocated memory is still 524.3MB. Free memory was 256.3MB in the beginning and 251.1MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 52 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 28.5s, OverallIterations: 37, TraceHistogramMax: 58, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.1s, AutomataDifference: 7.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1562 SdHoareTripleChecker+Valid, 3.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1330 mSDsluCounter, 9159 SdHoareTripleChecker+Invalid, 3.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7639 mSDsCounter, 493 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5290 IncrementalHoareTripleChecker+Invalid, 5783 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 493 mSolverCounterUnsat, 1520 mSDtfsCounter, 5290 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6073 GetRequests, 5404 SyntacticMatches, 39 SemanticMatches, 630 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5491 ImplicationChecksByTransitivity, 6.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=252occurred in iteration=33, InterpolantAutomatonStates: 442, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 37 MinimizatonAttempts, 261 StatesRemovedByMinimization, 23 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 13.3s InterpolantComputationTime, 5883 NumberOfCodeBlocks, 4846 NumberOfCodeBlocksAsserted, 77 NumberOfCheckSat, 7833 ConstructedInterpolants, 0 QuantifiedInterpolants, 17876 SizeOfPredicates, 26 NumberOfNonLiveVariables, 3689 ConjunctsInSsa, 243 ConjunctsInUnsatCore, 78 InterpolantComputations, 20 PerfectInterpolantSequences, 54585/59062 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 11 specifications checked. All of them hold - InvariantResult [Line: 25]: Location Invariant Derived location invariant: 1 - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: ((((((((((2 + buflim) == bufferlen) && (inlen <= 2147483647)) && (0 <= buflim)) && (((long long) bufferlen + 1) <= inlen)) && (buflim != 0)) && (in == 1)) && (buf == 1)) || (((((((2 + buflim) == bufferlen) && (inlen <= 2147483647)) && (in == 0)) && (0 <= buflim)) && (buf == 0)) && (((long long) bufferlen + 1) <= inlen))) || (((((((((bufferlen + in) + 1) <= (buf + inlen)) && ((2 + buflim) == bufferlen)) && (inlen <= 2147483647)) && (((long long) buf + 2) <= bufferlen)) && (2 <= in)) && (1 <= buf)) && (bufferlen <= 2147483646))) - ProcedureContractResult [Line: 17]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: (\old(cond) != 0) Ensures: (\old(cond) != 0) RESULT: Ultimate proved your program to be correct! [2024-09-12 18:02:22,355 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE