./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops-crafted-1/mono-crafted_1.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/loops-crafted-1/mono-crafted_1.c -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 00e8f12f1d0e3d2fc679744754ceeef2daa37b874cd8db07b5ab8c35684165c0 --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 18:14:19,247 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 18:14:19,309 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 18:14:19,314 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 18:14:19,315 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 18:14:19,340 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 18:14:19,342 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 18:14:19,343 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 18:14:19,343 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 18:14:19,344 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 18:14:19,345 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 18:14:19,345 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 18:14:19,345 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 18:14:19,348 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 18:14:19,348 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 18:14:19,348 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 18:14:19,349 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 18:14:19,349 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 18:14:19,349 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 18:14:19,349 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 18:14:19,349 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 18:14:19,352 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 18:14:19,352 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 18:14:19,353 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 18:14:19,353 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 18:14:19,353 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 18:14:19,353 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 18:14:19,353 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 18:14:19,353 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 18:14:19,354 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 18:14:19,354 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 18:14:19,354 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 18:14:19,354 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:14:19,354 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 18:14:19,354 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 18:14:19,355 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 18:14:19,355 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 18:14:19,355 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 18:14:19,355 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 18:14:19,355 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 18:14:19,355 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 18:14:19,356 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 18:14:19,356 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 00e8f12f1d0e3d2fc679744754ceeef2daa37b874cd8db07b5ab8c35684165c0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 18:14:19,601 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 18:14:19,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 18:14:19,620 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 18:14:19,620 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 18:14:19,621 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 18:14:19,622 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loops-crafted-1/mono-crafted_1.c [2024-09-12 18:14:21,042 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 18:14:21,207 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 18:14:21,208 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loops-crafted-1/mono-crafted_1.c [2024-09-12 18:14:21,217 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/3b29763a5/46992dd0b1f842618e435dc179b420fe/FLAG7305ac099 [2024-09-12 18:14:21,231 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/3b29763a5/46992dd0b1f842618e435dc179b420fe [2024-09-12 18:14:21,234 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 18:14:21,235 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 18:14:21,237 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 18:14:21,238 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 18:14:21,242 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 18:14:21,244 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:14:21" (1/1) ... [2024-09-12 18:14:21,245 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2026677f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:14:21, skipping insertion in model container [2024-09-12 18:14:21,245 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:14:21" (1/1) ... [2024-09-12 18:14:21,258 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 18:14:21,378 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/loops-crafted-1/mono-crafted_1.c[318,331] [2024-09-12 18:14:21,396 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:14:21,408 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 18:14:21,416 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loops-crafted-1/mono-crafted_1.c[318,331] [2024-09-12 18:14:21,420 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:14:21,439 INFO L204 MainTranslator]: Completed translation [2024-09-12 18:14:21,440 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:14:21 WrapperNode [2024-09-12 18:14:21,440 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 18:14:21,441 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 18:14:21,441 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 18:14:21,441 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 18:14:21,447 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:14:21" (1/1) ... [2024-09-12 18:14:21,453 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:14:21" (1/1) ... [2024-09-12 18:14:21,459 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 18:14:21,459 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 18:14:21,460 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 18:14:21,460 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 18:14:21,460 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 18:14:21,469 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:14:21" (1/1) ... [2024-09-12 18:14:21,470 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:14:21" (1/1) ... [2024-09-12 18:14:21,470 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:14:21" (1/1) ... [2024-09-12 18:14:21,492 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 18:14:21,492 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:14:21" (1/1) ... [2024-09-12 18:14:21,493 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:14:21" (1/1) ... [2024-09-12 18:14:21,495 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:14:21" (1/1) ... [2024-09-12 18:14:21,499 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:14:21" (1/1) ... [2024-09-12 18:14:21,503 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:14:21" (1/1) ... [2024-09-12 18:14:21,504 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:14:21" (1/1) ... [2024-09-12 18:14:21,506 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 18:14:21,506 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 18:14:21,507 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 18:14:21,507 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 18:14:21,509 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:14:21" (1/1) ... [2024-09-12 18:14:21,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:14:21,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:14:21,547 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 18:14:21,553 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 18:14:21,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 18:14:21,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 18:14:21,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 18:14:21,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 18:14:21,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 18:14:21,598 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 18:14:21,599 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 18:14:21,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 18:14:21,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 18:14:21,599 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 18:14:21,657 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 18:14:21,659 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 18:14:21,825 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-09-12 18:14:21,828 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 18:14:21,856 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 18:14:21,856 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-12 18:14:21,856 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:14:21 BoogieIcfgContainer [2024-09-12 18:14:21,856 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 18:14:21,860 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 18:14:21,860 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 18:14:21,863 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 18:14:21,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 06:14:21" (1/3) ... [2024-09-12 18:14:21,863 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76b766f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:14:21, skipping insertion in model container [2024-09-12 18:14:21,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:14:21" (2/3) ... [2024-09-12 18:14:21,864 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76b766f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:14:21, skipping insertion in model container [2024-09-12 18:14:21,864 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:14:21" (3/3) ... [2024-09-12 18:14:21,865 INFO L112 eAbstractionObserver]: Analyzing ICFG mono-crafted_1.c [2024-09-12 18:14:21,879 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 18:14:21,880 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2024-09-12 18:14:21,939 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 18:14:21,945 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;@15cce873, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 18:14:21,945 INFO L337 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-09-12 18:14:21,950 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 21 states have (on average 1.8095238095238095) internal successors, (38), 32 states have internal predecessors, (38), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:14:21,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-09-12 18:14:21,959 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:14:21,960 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:14:21,960 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:14:21,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:21,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1899532730, now seen corresponding path program 1 times [2024-09-12 18:14:21,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:14:21,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19992062] [2024-09-12 18:14:21,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:14:21,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:14:22,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:22,074 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:14:22,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:22,091 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 18:14:22,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:14:22,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19992062] [2024-09-12 18:14:22,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19992062] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:14:22,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:14:22,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:14:22,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488535298] [2024-09-12 18:14:22,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:14:22,098 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-12 18:14:22,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:14:22,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-12 18:14:22,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 18:14:22,121 INFO L87 Difference]: Start difference. First operand has 39 states, 21 states have (on average 1.8095238095238095) internal successors, (38), 32 states have internal predecessors, (38), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:22,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:14:22,151 INFO L93 Difference]: Finished difference Result 59 states and 67 transitions. [2024-09-12 18:14:22,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-12 18:14:22,154 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 8 [2024-09-12 18:14:22,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:14:22,159 INFO L225 Difference]: With dead ends: 59 [2024-09-12 18:14:22,159 INFO L226 Difference]: Without dead ends: 33 [2024-09-12 18:14:22,162 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 18:14:22,165 INFO L434 NwaCegarLoop]: 39 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:14:22,167 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:14:22,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2024-09-12 18:14:22,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2024-09-12 18:14:22,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 28 states have internal predecessors, (31), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:22,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2024-09-12 18:14:22,206 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 8 [2024-09-12 18:14:22,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:14:22,206 INFO L474 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2024-09-12 18:14:22,206 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:22,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:22,207 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2024-09-12 18:14:22,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-09-12 18:14:22,208 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:14:22,208 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:14:22,208 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 18:14:22,209 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:14:22,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:22,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1899553872, now seen corresponding path program 1 times [2024-09-12 18:14:22,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:14:22,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990171586] [2024-09-12 18:14:22,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:14:22,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:14:22,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:22,285 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:14:22,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:22,297 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 18:14:22,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:14:22,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990171586] [2024-09-12 18:14:22,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990171586] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:14:22,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:14:22,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:14:22,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763897370] [2024-09-12 18:14:22,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:14:22,299 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:14:22,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:14:22,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:14:22,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:14:22,301 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:22,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:14:22,333 INFO L93 Difference]: Finished difference Result 63 states and 69 transitions. [2024-09-12 18:14:22,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:14:22,334 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 8 [2024-09-12 18:14:22,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:14:22,334 INFO L225 Difference]: With dead ends: 63 [2024-09-12 18:14:22,334 INFO L226 Difference]: Without dead ends: 35 [2024-09-12 18:14:22,335 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 18:14:22,336 INFO L434 NwaCegarLoop]: 32 mSDtfsCounter, 1 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:14:22,347 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 57 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:14:22,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-09-12 18:14:22,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-09-12 18:14:22,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 20 states have (on average 1.65) internal successors, (33), 30 states have internal predecessors, (33), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:22,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2024-09-12 18:14:22,358 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 8 [2024-09-12 18:14:22,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:14:22,359 INFO L474 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2024-09-12 18:14:22,359 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:22,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:22,360 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2024-09-12 18:14:22,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-09-12 18:14:22,361 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:14:22,361 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:14:22,361 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 18:14:22,361 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:14:22,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:22,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1899552782, now seen corresponding path program 1 times [2024-09-12 18:14:22,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:14:22,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565907719] [2024-09-12 18:14:22,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:14:22,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:14:22,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:22,434 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:14:22,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:22,445 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 18:14:22,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:14:22,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565907719] [2024-09-12 18:14:22,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565907719] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:14:22,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:14:22,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:14:22,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131829084] [2024-09-12 18:14:22,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:14:22,450 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:14:22,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:14:22,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:14:22,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:14:22,451 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:22,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:14:22,495 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2024-09-12 18:14:22,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:14:22,496 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 8 [2024-09-12 18:14:22,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:14:22,497 INFO L225 Difference]: With dead ends: 39 [2024-09-12 18:14:22,497 INFO L226 Difference]: Without dead ends: 37 [2024-09-12 18:14:22,497 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:14:22,498 INFO L434 NwaCegarLoop]: 30 mSDtfsCounter, 1 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:14:22,498 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 82 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:14:22,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-09-12 18:14:22,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-09-12 18:14:22,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 32 states have internal predecessors, (35), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:22,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2024-09-12 18:14:22,503 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 8 [2024-09-12 18:14:22,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:14:22,504 INFO L474 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2024-09-12 18:14:22,504 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:22,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:22,504 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2024-09-12 18:14:22,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-09-12 18:14:22,505 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:14:22,505 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:14:22,505 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-12 18:14:22,505 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:14:22,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:22,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1786139477, now seen corresponding path program 1 times [2024-09-12 18:14:22,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:14:22,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045270305] [2024-09-12 18:14:22,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:14:22,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:14:22,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:22,588 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:14:22,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:22,595 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:22,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:14:22,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045270305] [2024-09-12 18:14:22,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045270305] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:14:22,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [647514646] [2024-09-12 18:14:22,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:14:22,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:14:22,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:14:22,600 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 18:14:22,602 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 18:14:22,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:22,666 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:14:22,677 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:14:22,743 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:22,743 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:14:22,782 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:22,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [647514646] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:14:22,783 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:14:22,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-09-12 18:14:22,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145877457] [2024-09-12 18:14:22,783 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:14:22,783 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:14:22,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:14:22,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:14:22,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:14:22,784 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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 18:14:22,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:14:22,818 INFO L93 Difference]: Finished difference Result 67 states and 75 transitions. [2024-09-12 18:14:22,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:14:22,818 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2024-09-12 18:14:22,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:14:22,819 INFO L225 Difference]: With dead ends: 67 [2024-09-12 18:14:22,819 INFO L226 Difference]: Without dead ends: 39 [2024-09-12 18:14:22,820 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:14:22,820 INFO L434 NwaCegarLoop]: 27 mSDtfsCounter, 2 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:14:22,820 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 76 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:14:22,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-09-12 18:14:22,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2024-09-12 18:14:22,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 25 states have (on average 1.48) internal successors, (37), 34 states have internal predecessors, (37), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:22,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2024-09-12 18:14:22,824 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 12 [2024-09-12 18:14:22,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:14:22,825 INFO L474 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2024-09-12 18:14:22,825 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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 18:14:22,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:22,825 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2024-09-12 18:14:22,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-09-12 18:14:22,825 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:14:22,826 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:14:22,838 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-12 18:14:23,026 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:14:23,027 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:14:23,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:23,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1786138387, now seen corresponding path program 1 times [2024-09-12 18:14:23,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:14:23,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408104952] [2024-09-12 18:14:23,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:14:23,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:14:23,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:23,104 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:14:23,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:23,111 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:23,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:14:23,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408104952] [2024-09-12 18:14:23,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408104952] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:14:23,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157633427] [2024-09-12 18:14:23,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:14:23,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:14:23,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:14:23,115 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 18:14:23,116 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 18:14:23,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:23,149 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:14:23,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:14:23,178 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:23,178 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:14:23,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157633427] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:14:23,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:14:23,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-09-12 18:14:23,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731979859] [2024-09-12 18:14:23,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:14:23,180 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:14:23,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:14:23,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:14:23,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:14:23,181 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:23,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:14:23,218 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2024-09-12 18:14:23,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:14:23,219 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2024-09-12 18:14:23,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:14:23,221 INFO L225 Difference]: With dead ends: 49 [2024-09-12 18:14:23,221 INFO L226 Difference]: Without dead ends: 48 [2024-09-12 18:14:23,222 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:14:23,222 INFO L434 NwaCegarLoop]: 27 mSDtfsCounter, 6 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:14:23,223 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 76 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:14:23,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-09-12 18:14:23,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 41. [2024-09-12 18:14:23,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 36 states have internal predecessors, (40), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:23,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2024-09-12 18:14:23,230 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 12 [2024-09-12 18:14:23,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:14:23,231 INFO L474 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2024-09-12 18:14:23,231 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 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 18:14:23,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:23,231 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2024-09-12 18:14:23,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-09-12 18:14:23,232 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:14:23,232 INFO L216 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:14:23,249 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-09-12 18:14:23,436 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:14:23,437 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:14:23,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:23,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1716866344, now seen corresponding path program 1 times [2024-09-12 18:14:23,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:14:23,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068059130] [2024-09-12 18:14:23,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:14:23,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:14:23,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:23,473 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:14:23,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:23,476 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 18:14:23,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:14:23,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068059130] [2024-09-12 18:14:23,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068059130] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:14:23,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:14:23,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:14:23,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447617099] [2024-09-12 18:14:23,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:14:23,478 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:14:23,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:14:23,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:14:23,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:14:23,479 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:23,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:14:23,500 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2024-09-12 18:14:23,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:14:23,500 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2024-09-12 18:14:23,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:14:23,501 INFO L225 Difference]: With dead ends: 41 [2024-09-12 18:14:23,501 INFO L226 Difference]: Without dead ends: 40 [2024-09-12 18:14:23,502 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 18:14:23,502 INFO L434 NwaCegarLoop]: 29 mSDtfsCounter, 1 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 57 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 18:14:23,503 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 57 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:14:23,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-09-12 18:14:23,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2024-09-12 18:14:23,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 27 states have (on average 1.4444444444444444) internal successors, (39), 35 states have internal predecessors, (39), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:23,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2024-09-12 18:14:23,508 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 16 [2024-09-12 18:14:23,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:14:23,509 INFO L474 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2024-09-12 18:14:23,509 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:23,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:23,510 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2024-09-12 18:14:23,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-09-12 18:14:23,510 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:14:23,510 INFO L216 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:14:23,510 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-09-12 18:14:23,511 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:14:23,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:23,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1683249169, now seen corresponding path program 1 times [2024-09-12 18:14:23,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:14:23,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190476759] [2024-09-12 18:14:23,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:14:23,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:14:23,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:23,541 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:14:23,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:23,544 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 18:14:23,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:14:23,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190476759] [2024-09-12 18:14:23,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190476759] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:14:23,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:14:23,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:14:23,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580745802] [2024-09-12 18:14:23,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:14:23,545 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:14:23,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:14:23,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:14:23,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:14:23,546 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:23,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:14:23,575 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2024-09-12 18:14:23,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:14:23,577 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-09-12 18:14:23,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:14:23,578 INFO L225 Difference]: With dead ends: 40 [2024-09-12 18:14:23,578 INFO L226 Difference]: Without dead ends: 39 [2024-09-12 18:14:23,578 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:14:23,579 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:14:23,579 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:14:23,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-09-12 18:14:23,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2024-09-12 18:14:23,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 34 states have internal predecessors, (38), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:23,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2024-09-12 18:14:23,589 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 17 [2024-09-12 18:14:23,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:14:23,589 INFO L474 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2024-09-12 18:14:23,590 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:23,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:23,590 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2024-09-12 18:14:23,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-09-12 18:14:23,590 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:14:23,590 INFO L216 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:14:23,590 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-12 18:14:23,591 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:14:23,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:23,591 INFO L85 PathProgramCache]: Analyzing trace with hash 641116746, now seen corresponding path program 1 times [2024-09-12 18:14:23,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:14:23,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642634220] [2024-09-12 18:14:23,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:14:23,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:14:23,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:23,641 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:14:23,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:23,643 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 18:14:23,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:14:23,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642634220] [2024-09-12 18:14:23,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642634220] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:14:23,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:14:23,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:14:23,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074905376] [2024-09-12 18:14:23,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:14:23,644 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:14:23,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:14:23,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:14:23,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:14:23,645 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:23,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:14:23,663 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2024-09-12 18:14:23,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:14:23,663 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2024-09-12 18:14:23,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:14:23,664 INFO L225 Difference]: With dead ends: 40 [2024-09-12 18:14:23,664 INFO L226 Difference]: Without dead ends: 39 [2024-09-12 18:14:23,664 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:14:23,665 INFO L434 NwaCegarLoop]: 24 mSDtfsCounter, 3 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:14:23,665 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 62 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:14:23,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-09-12 18:14:23,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2024-09-12 18:14:23,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 33 states have internal predecessors, (37), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:23,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2024-09-12 18:14:23,669 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 18 [2024-09-12 18:14:23,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:14:23,670 INFO L474 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2024-09-12 18:14:23,670 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:23,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:23,670 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2024-09-12 18:14:23,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-09-12 18:14:23,670 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:14:23,670 INFO L216 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:14:23,670 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-09-12 18:14:23,671 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:14:23,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:23,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1600217293, now seen corresponding path program 1 times [2024-09-12 18:14:23,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:14:23,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82175343] [2024-09-12 18:14:23,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:14:23,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:14:23,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:23,706 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:14:23,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:23,708 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 18:14:23,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:14:23,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82175343] [2024-09-12 18:14:23,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82175343] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:14:23,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:14:23,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:14:23,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287911768] [2024-09-12 18:14:23,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:14:23,710 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:14:23,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:14:23,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:14:23,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:14:23,710 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 18:14:23,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:14:23,729 INFO L93 Difference]: Finished difference Result 47 states and 51 transitions. [2024-09-12 18:14:23,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:14:23,729 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 19 [2024-09-12 18:14:23,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:14:23,730 INFO L225 Difference]: With dead ends: 47 [2024-09-12 18:14:23,730 INFO L226 Difference]: Without dead ends: 46 [2024-09-12 18:14:23,730 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:14:23,731 INFO L434 NwaCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:14:23,731 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:14:23,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-09-12 18:14:23,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-09-12 18:14:23,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 41 states have internal predecessors, (46), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:23,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2024-09-12 18:14:23,737 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 19 [2024-09-12 18:14:23,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:14:23,737 INFO L474 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2024-09-12 18:14:23,737 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 18:14:23,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:23,737 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2024-09-12 18:14:23,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-09-12 18:14:23,738 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:14:23,738 INFO L216 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:14:23,738 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-09-12 18:14:23,738 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:14:23,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:23,739 INFO L85 PathProgramCache]: Analyzing trace with hash 2063652537, now seen corresponding path program 1 times [2024-09-12 18:14:23,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:14:23,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191898744] [2024-09-12 18:14:23,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:14:23,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:14:23,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:23,787 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:14:23,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:23,790 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:23,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:14:23,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191898744] [2024-09-12 18:14:23,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191898744] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:14:23,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [478040536] [2024-09-12 18:14:23,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:14:23,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:14:23,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:14:23,792 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 18:14:23,794 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 18:14:23,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:23,832 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:14:23,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:14:23,866 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:23,866 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:14:23,929 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:23,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [478040536] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:14:23,929 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:14:23,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2024-09-12 18:14:23,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117612606] [2024-09-12 18:14:23,929 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:14:23,930 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 18:14:23,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:14:23,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 18:14:23,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:14:23,931 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand has 14 states, 14 states have (on average 2.5) internal successors, (35), 14 states have internal predecessors, (35), 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 18:14:24,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:14:24,010 INFO L93 Difference]: Finished difference Result 89 states and 99 transitions. [2024-09-12 18:14:24,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:14:24,012 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.5) internal successors, (35), 14 states have internal predecessors, (35), 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 22 [2024-09-12 18:14:24,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:14:24,012 INFO L225 Difference]: With dead ends: 89 [2024-09-12 18:14:24,012 INFO L226 Difference]: Without dead ends: 58 [2024-09-12 18:14:24,013 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:14:24,013 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:14:24,013 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 206 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:14:24,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-09-12 18:14:24,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2024-09-12 18:14:24,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 47 states have (on average 1.2340425531914894) internal successors, (58), 53 states have internal predecessors, (58), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:24,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2024-09-12 18:14:24,029 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 22 [2024-09-12 18:14:24,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:14:24,030 INFO L474 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2024-09-12 18:14:24,030 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.5) internal successors, (35), 14 states have internal predecessors, (35), 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 18:14:24,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:24,030 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2024-09-12 18:14:24,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-09-12 18:14:24,031 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:14:24,031 INFO L216 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:14:24,047 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-12 18:14:24,231 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-09-12 18:14:24,232 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:14:24,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:24,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1905053546, now seen corresponding path program 2 times [2024-09-12 18:14:24,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:14:24,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110836509] [2024-09-12 18:14:24,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:14:24,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:14:24,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:24,414 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:14:24,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:24,418 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 6 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:24,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:14:24,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110836509] [2024-09-12 18:14:24,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110836509] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:14:24,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307643571] [2024-09-12 18:14:24,419 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:14:24,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:14:24,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:14:24,422 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 18:14:24,423 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 18:14:24,450 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-12 18:14:24,450 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:14:24,450 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:14:24,451 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:14:24,510 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-09-12 18:14:24,510 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:14:24,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1307643571] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:14:24,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:14:24,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 15 [2024-09-12 18:14:24,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771516525] [2024-09-12 18:14:24,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:14:24,511 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:14:24,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:14:24,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:14:24,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:14:24,511 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:24,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:14:24,545 INFO L93 Difference]: Finished difference Result 58 states and 62 transitions. [2024-09-12 18:14:24,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:14:24,546 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), 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 34 [2024-09-12 18:14:24,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:14:24,547 INFO L225 Difference]: With dead ends: 58 [2024-09-12 18:14:24,547 INFO L226 Difference]: Without dead ends: 57 [2024-09-12 18:14:24,547 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:14:24,548 INFO L434 NwaCegarLoop]: 24 mSDtfsCounter, 12 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:14:24,548 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 55 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:14:24,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-09-12 18:14:24,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2024-09-12 18:14:24,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 47 states have (on average 1.2127659574468086) internal successors, (57), 52 states have internal predecessors, (57), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:24,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2024-09-12 18:14:24,560 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 34 [2024-09-12 18:14:24,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:14:24,561 INFO L474 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2024-09-12 18:14:24,561 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), 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 18:14:24,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:24,561 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2024-09-12 18:14:24,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-09-12 18:14:24,563 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:14:24,563 INFO L216 NwaCegarLoop]: trace histogram [7, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:14:24,576 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 18:14:24,763 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:14:24,764 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:14:24,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:24,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1905054636, now seen corresponding path program 1 times [2024-09-12 18:14:24,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:14:24,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510734508] [2024-09-12 18:14:24,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:14:24,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:14:24,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:24,914 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:14:24,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:24,916 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 17 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:24,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:14:24,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510734508] [2024-09-12 18:14:24,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510734508] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:14:24,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [709518823] [2024-09-12 18:14:24,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:14:24,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:14:24,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:14:24,918 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 18:14:24,920 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 18:14:24,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:24,950 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 18:14:24,951 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:14:25,005 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 17 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:25,005 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:14:25,173 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 17 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:25,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [709518823] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:14:25,174 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:14:25,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 26 [2024-09-12 18:14:25,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748981334] [2024-09-12 18:14:25,174 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:14:25,174 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-09-12 18:14:25,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:14:25,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-09-12 18:14:25,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=468, Unknown=0, NotChecked=0, Total=650 [2024-09-12 18:14:25,175 INFO L87 Difference]: Start difference. First operand 57 states and 61 transitions. Second operand has 26 states, 26 states have (on average 2.269230769230769) internal successors, (59), 26 states have internal predecessors, (59), 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 18:14:25,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:14:25,258 INFO L93 Difference]: Finished difference Result 111 states and 124 transitions. [2024-09-12 18:14:25,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-09-12 18:14:25,258 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.269230769230769) internal successors, (59), 26 states have internal predecessors, (59), 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 34 [2024-09-12 18:14:25,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:14:25,259 INFO L225 Difference]: With dead ends: 111 [2024-09-12 18:14:25,259 INFO L226 Difference]: Without dead ends: 81 [2024-09-12 18:14:25,260 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=468, Unknown=0, NotChecked=0, Total=650 [2024-09-12 18:14:25,260 INFO L434 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:14:25,260 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 192 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:14:25,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-09-12 18:14:25,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2024-09-12 18:14:25,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 71 states have (on average 1.1408450704225352) internal successors, (81), 76 states have internal predecessors, (81), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:25,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 85 transitions. [2024-09-12 18:14:25,275 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 85 transitions. Word has length 34 [2024-09-12 18:14:25,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:14:25,275 INFO L474 AbstractCegarLoop]: Abstraction has 81 states and 85 transitions. [2024-09-12 18:14:25,275 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 2.269230769230769) internal successors, (59), 26 states have internal predecessors, (59), 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 18:14:25,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:25,276 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 85 transitions. [2024-09-12 18:14:25,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-09-12 18:14:25,277 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:14:25,277 INFO L216 NwaCegarLoop]: trace histogram [13, 12, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:14:25,290 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 18:14:25,477 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-09-12 18:14:25,478 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:14:25,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:25,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1140490098, now seen corresponding path program 2 times [2024-09-12 18:14:25,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:14:25,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170781011] [2024-09-12 18:14:25,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:14:25,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:14:25,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:25,826 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:14:25,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:25,829 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 35 proven. 242 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:25,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:14:25,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170781011] [2024-09-12 18:14:25,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170781011] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:14:25,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [323421781] [2024-09-12 18:14:25,829 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:14:25,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:14:25,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:14:25,831 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 18:14:25,832 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 18:14:25,873 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:14:25,873 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:14:25,874 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-12 18:14:25,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:14:25,952 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 35 proven. 242 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:25,952 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:14:26,475 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 35 proven. 242 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:26,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [323421781] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:14:26,476 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:14:26,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 50 [2024-09-12 18:14:26,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878476359] [2024-09-12 18:14:26,476 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:14:26,477 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-09-12 18:14:26,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:14:26,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-09-12 18:14:26,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=650, Invalid=1800, Unknown=0, NotChecked=0, Total=2450 [2024-09-12 18:14:26,479 INFO L87 Difference]: Start difference. First operand 81 states and 85 transitions. Second operand has 50 states, 50 states have (on average 2.14) internal successors, (107), 50 states have internal predecessors, (107), 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 18:14:26,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:14:26,614 INFO L93 Difference]: Finished difference Result 159 states and 178 transitions. [2024-09-12 18:14:26,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-09-12 18:14:26,615 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 2.14) internal successors, (107), 50 states have internal predecessors, (107), 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 58 [2024-09-12 18:14:26,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:14:26,616 INFO L225 Difference]: With dead ends: 159 [2024-09-12 18:14:26,616 INFO L226 Difference]: Without dead ends: 129 [2024-09-12 18:14:26,617 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 746 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=650, Invalid=1800, Unknown=0, NotChecked=0, Total=2450 [2024-09-12 18:14:26,617 INFO L434 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:14:26,617 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 106 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:14:26,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-09-12 18:14:26,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2024-09-12 18:14:26,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 119 states have (on average 1.084033613445378) internal successors, (129), 124 states have internal predecessors, (129), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:26,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 133 transitions. [2024-09-12 18:14:26,653 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 133 transitions. Word has length 58 [2024-09-12 18:14:26,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:14:26,653 INFO L474 AbstractCegarLoop]: Abstraction has 129 states and 133 transitions. [2024-09-12 18:14:26,653 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.14) internal successors, (107), 50 states have internal predecessors, (107), 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 18:14:26,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:26,654 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 133 transitions. [2024-09-12 18:14:26,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-09-12 18:14:26,659 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:14:26,659 INFO L216 NwaCegarLoop]: trace histogram [25, 24, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:14:26,672 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 18:14:26,859 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-09-12 18:14:26,860 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:14:26,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:26,860 INFO L85 PathProgramCache]: Analyzing trace with hash -901199790, now seen corresponding path program 3 times [2024-09-12 18:14:26,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:14:26,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107756902] [2024-09-12 18:14:26,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:14:26,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:14:26,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:27,898 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:14:27,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:27,901 INFO L134 CoverageAnalysis]: Checked inductivity of 1129 backedges. 71 proven. 1058 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:27,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:14:27,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107756902] [2024-09-12 18:14:27,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107756902] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:14:27,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [943374286] [2024-09-12 18:14:27,901 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:14:27,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:14:27,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:14:27,903 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 18:14:27,903 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 18:14:27,939 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 18:14:27,939 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:14:27,940 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:14:27,941 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:14:28,019 INFO L134 CoverageAnalysis]: Checked inductivity of 1129 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 1058 trivial. 0 not checked. [2024-09-12 18:14:28,019 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:14:28,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [943374286] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:14:28,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:14:28,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [49] total 52 [2024-09-12 18:14:28,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012634273] [2024-09-12 18:14:28,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:14:28,020 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:14:28,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:14:28,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:14:28,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=630, Invalid=2022, Unknown=0, NotChecked=0, Total=2652 [2024-09-12 18:14:28,022 INFO L87 Difference]: Start difference. First operand 129 states and 133 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:28,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:14:28,053 INFO L93 Difference]: Finished difference Result 154 states and 161 transitions. [2024-09-12 18:14:28,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:14:28,058 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 106 [2024-09-12 18:14:28,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:14:28,060 INFO L225 Difference]: With dead ends: 154 [2024-09-12 18:14:28,060 INFO L226 Difference]: Without dead ends: 128 [2024-09-12 18:14:28,061 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 641 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=630, Invalid=2022, Unknown=0, NotChecked=0, Total=2652 [2024-09-12 18:14:28,061 INFO L434 NwaCegarLoop]: 24 mSDtfsCounter, 6 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:14:28,061 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 83 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:14:28,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-09-12 18:14:28,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 123. [2024-09-12 18:14:28,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 114 states have (on average 1.0614035087719298) internal successors, (121), 118 states have internal predecessors, (121), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:28,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 125 transitions. [2024-09-12 18:14:28,081 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 125 transitions. Word has length 106 [2024-09-12 18:14:28,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:14:28,082 INFO L474 AbstractCegarLoop]: Abstraction has 123 states and 125 transitions. [2024-09-12 18:14:28,082 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:28,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:28,084 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 125 transitions. [2024-09-12 18:14:28,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-09-12 18:14:28,086 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:14:28,087 INFO L216 NwaCegarLoop]: trace histogram [24, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:14:28,100 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 18:14:28,287 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:14:28,287 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:14:28,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:28,288 INFO L85 PathProgramCache]: Analyzing trace with hash 2127543869, now seen corresponding path program 1 times [2024-09-12 18:14:28,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:14:28,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556656654] [2024-09-12 18:14:28,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:14:28,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:14:28,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:28,362 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:14:28,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:28,365 INFO L134 CoverageAnalysis]: Checked inductivity of 1082 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 1058 trivial. 0 not checked. [2024-09-12 18:14:28,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:14:28,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556656654] [2024-09-12 18:14:28,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556656654] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:14:28,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1995934955] [2024-09-12 18:14:28,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:14:28,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:14:28,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:14:28,367 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 18:14:28,368 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 18:14:28,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:28,420 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-09-12 18:14:28,422 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:14:29,247 INFO L134 CoverageAnalysis]: Checked inductivity of 1082 backedges. 24 proven. 1058 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:29,247 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:14:30,745 INFO L134 CoverageAnalysis]: Checked inductivity of 1082 backedges. 24 proven. 1058 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:30,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1995934955] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:14:30,746 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:14:30,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 49, 49] total 100 [2024-09-12 18:14:30,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438490834] [2024-09-12 18:14:30,746 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:14:30,747 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 100 states [2024-09-12 18:14:30,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:14:30,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2024-09-12 18:14:30,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2361, Invalid=7539, Unknown=0, NotChecked=0, Total=9900 [2024-09-12 18:14:30,755 INFO L87 Difference]: Start difference. First operand 123 states and 125 transitions. Second operand has 100 states, 100 states have (on average 2.13) internal successors, (213), 100 states have internal predecessors, (213), 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 18:14:33,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:14:33,049 INFO L93 Difference]: Finished difference Result 255 states and 286 transitions. [2024-09-12 18:14:33,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2024-09-12 18:14:33,050 INFO L78 Accepts]: Start accepts. Automaton has has 100 states, 100 states have (on average 2.13) internal successors, (213), 100 states have internal predecessors, (213), 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 107 [2024-09-12 18:14:33,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:14:33,051 INFO L225 Difference]: With dead ends: 255 [2024-09-12 18:14:33,051 INFO L226 Difference]: Without dead ends: 231 [2024-09-12 18:14:33,057 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 191 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9570 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=7082, Invalid=29974, Unknown=0, NotChecked=0, Total=37056 [2024-09-12 18:14:33,058 INFO L434 NwaCegarLoop]: 17 mSDtfsCounter, 11 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:14:33,058 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 173 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:14:33,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2024-09-12 18:14:33,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 225. [2024-09-12 18:14:33,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 216 states have (on average 1.0509259259259258) internal successors, (227), 220 states have internal predecessors, (227), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:33,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 231 transitions. [2024-09-12 18:14:33,084 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 231 transitions. Word has length 107 [2024-09-12 18:14:33,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:14:33,084 INFO L474 AbstractCegarLoop]: Abstraction has 225 states and 231 transitions. [2024-09-12 18:14:33,084 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 100 states, 100 states have (on average 2.13) internal successors, (213), 100 states have internal predecessors, (213), 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 18:14:33,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:33,085 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 231 transitions. [2024-09-12 18:14:33,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-09-12 18:14:33,086 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:14:33,087 INFO L216 NwaCegarLoop]: trace histogram [48, 47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:14:33,099 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 18:14:33,290 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:14:33,291 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:14:33,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:33,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1354232187, now seen corresponding path program 1 times [2024-09-12 18:14:33,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:14:33,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916534067] [2024-09-12 18:14:33,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:14:33,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:14:33,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:36,462 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:14:36,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:36,465 INFO L134 CoverageAnalysis]: Checked inductivity of 4466 backedges. 48 proven. 4418 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:36,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:14:36,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916534067] [2024-09-12 18:14:36,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916534067] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:14:36,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1472114310] [2024-09-12 18:14:36,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:14:36,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:14:36,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:14:36,467 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 18:14:36,469 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 18:14:36,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:36,551 INFO L262 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 96 conjuncts are in the unsatisfiable core [2024-09-12 18:14:36,556 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:14:36,809 INFO L134 CoverageAnalysis]: Checked inductivity of 4466 backedges. 48 proven. 4418 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:36,810 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:14:41,684 INFO L134 CoverageAnalysis]: Checked inductivity of 4466 backedges. 48 proven. 4418 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:41,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1472114310] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:14:41,684 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:14:41,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 97, 97] total 194 [2024-09-12 18:14:41,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643434455] [2024-09-12 18:14:41,685 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:14:41,685 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 194 states [2024-09-12 18:14:41,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:14:41,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 194 interpolants. [2024-09-12 18:14:41,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9506, Invalid=27936, Unknown=0, NotChecked=0, Total=37442 [2024-09-12 18:14:41,693 INFO L87 Difference]: Start difference. First operand 225 states and 231 transitions. Second operand has 194 states, 194 states have (on average 2.0463917525773194) internal successors, (397), 194 states have internal predecessors, (397), 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 18:14:42,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:14:42,240 INFO L93 Difference]: Finished difference Result 447 states and 506 transitions. [2024-09-12 18:14:42,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2024-09-12 18:14:42,240 INFO L78 Accepts]: Start accepts. Automaton has has 194 states, 194 states have (on average 2.0463917525773194) internal successors, (397), 194 states have internal predecessors, (397), 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 205 [2024-09-12 18:14:42,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:14:42,242 INFO L225 Difference]: With dead ends: 447 [2024-09-12 18:14:42,242 INFO L226 Difference]: Without dead ends: 417 [2024-09-12 18:14:42,244 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 508 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 192 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11654 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=9506, Invalid=27936, Unknown=0, NotChecked=0, Total=37442 [2024-09-12 18:14:42,245 INFO L434 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:14:42,245 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 162 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:14:42,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-09-12 18:14:42,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 417. [2024-09-12 18:14:42,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 408 states have (on average 1.0269607843137254) internal successors, (419), 412 states have internal predecessors, (419), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:42,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 423 transitions. [2024-09-12 18:14:42,272 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 423 transitions. Word has length 205 [2024-09-12 18:14:42,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:14:42,272 INFO L474 AbstractCegarLoop]: Abstraction has 417 states and 423 transitions. [2024-09-12 18:14:42,273 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 194 states, 194 states have (on average 2.0463917525773194) internal successors, (397), 194 states have internal predecessors, (397), 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 18:14:42,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:42,276 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 423 transitions. [2024-09-12 18:14:42,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2024-09-12 18:14:42,279 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:14:42,279 INFO L216 NwaCegarLoop]: trace histogram [96, 95, 95, 95, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:14:42,292 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-12 18:14:42,483 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-12 18:14:42,484 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:14:42,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:42,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1868987019, now seen corresponding path program 2 times [2024-09-12 18:14:42,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:14:42,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797567034] [2024-09-12 18:14:42,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:14:42,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:14:42,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:53,881 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:14:53,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:53,892 INFO L134 CoverageAnalysis]: Checked inductivity of 18146 backedges. 96 proven. 18050 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:53,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:14:53,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797567034] [2024-09-12 18:14:53,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797567034] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:14:53,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [862856377] [2024-09-12 18:14:53,893 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:14:53,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:14:53,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:14:53,895 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 18:14:53,896 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 18:14:54,013 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:14:54,013 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:14:54,018 INFO L262 TraceCheckSpWp]: Trace formula consists of 819 conjuncts, 192 conjuncts are in the unsatisfiable core [2024-09-12 18:14:54,023 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:14:54,435 INFO L134 CoverageAnalysis]: Checked inductivity of 18146 backedges. 96 proven. 18050 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:54,435 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:15:13,041 INFO L134 CoverageAnalysis]: Checked inductivity of 18146 backedges. 96 proven. 18050 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:15:13,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [862856377] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:15:13,042 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:15:13,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [193, 193, 193] total 386 [2024-09-12 18:15:13,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562699057] [2024-09-12 18:15:13,042 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:15:13,043 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 386 states [2024-09-12 18:15:13,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:15:13,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 386 interpolants. [2024-09-12 18:15:13,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37442, Invalid=111168, Unknown=0, NotChecked=0, Total=148610 [2024-09-12 18:15:13,059 INFO L87 Difference]: Start difference. First operand 417 states and 423 transitions. Second operand has 386 states, 386 states have (on average 2.023316062176166) internal successors, (781), 386 states have internal predecessors, (781), 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 18:15:15,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:15:15,015 INFO L93 Difference]: Finished difference Result 831 states and 938 transitions. [2024-09-12 18:15:15,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 383 states. [2024-09-12 18:15:15,016 INFO L78 Accepts]: Start accepts. Automaton has has 386 states, 386 states have (on average 2.023316062176166) internal successors, (781), 386 states have internal predecessors, (781), 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 397 [2024-09-12 18:15:15,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:15:15,019 INFO L225 Difference]: With dead ends: 831 [2024-09-12 18:15:15,019 INFO L226 Difference]: Without dead ends: 801 [2024-09-12 18:15:15,024 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 988 GetRequests, 604 SyntacticMatches, 0 SemanticMatches, 384 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46358 ImplicationChecksByTransitivity, 25.1s TimeCoverageRelationStatistics Valid=37442, Invalid=111168, Unknown=0, NotChecked=0, Total=148610 [2024-09-12 18:15:15,025 INFO L434 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 821 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:15:15,025 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 210 Invalid, 821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 821 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:15:15,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2024-09-12 18:15:15,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 801. [2024-09-12 18:15:15,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 801 states, 792 states have (on average 1.0138888888888888) internal successors, (803), 796 states have internal predecessors, (803), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:15:15,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 801 states and 807 transitions. [2024-09-12 18:15:15,072 INFO L78 Accepts]: Start accepts. Automaton has 801 states and 807 transitions. Word has length 397 [2024-09-12 18:15:15,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:15:15,073 INFO L474 AbstractCegarLoop]: Abstraction has 801 states and 807 transitions. [2024-09-12 18:15:15,073 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 386 states, 386 states have (on average 2.023316062176166) internal successors, (781), 386 states have internal predecessors, (781), 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 18:15:15,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:15:15,074 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states and 807 transitions. [2024-09-12 18:15:15,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 782 [2024-09-12 18:15:15,085 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:15:15,085 INFO L216 NwaCegarLoop]: trace histogram [192, 191, 191, 191, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:15:15,099 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 18:15:15,286 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-09-12 18:15:15,286 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:15:15,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:15:15,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1903103147, now seen corresponding path program 3 times [2024-09-12 18:15:15,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:15:15,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288146106] [2024-09-12 18:15:15,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:15:15,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:15:15,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:16:07,128 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:16:07,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:16:07,140 INFO L134 CoverageAnalysis]: Checked inductivity of 73154 backedges. 192 proven. 72962 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:16:07,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:16:07,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288146106] [2024-09-12 18:16:07,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288146106] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:16:07,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1280818639] [2024-09-12 18:16:07,140 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:16:07,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:16:07,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:16:07,142 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 18:16:07,143 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 18:16:07,212 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 18:16:07,212 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:16:07,213 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:16:07,218 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:16:08,886 INFO L134 CoverageAnalysis]: Checked inductivity of 73154 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 72962 trivial. 0 not checked. [2024-09-12 18:16:08,887 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:16:08,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1280818639] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:16:08,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:16:08,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [385] total 388 [2024-09-12 18:16:08,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122718116] [2024-09-12 18:16:08,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:16:08,888 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:16:08,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:16:08,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:16:08,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37255, Invalid=112901, Unknown=0, NotChecked=0, Total=150156 [2024-09-12 18:16:08,894 INFO L87 Difference]: Start difference. First operand 801 states and 807 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 18:16:08,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:16:08,956 INFO L93 Difference]: Finished difference Result 808 states and 815 transitions. [2024-09-12 18:16:08,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:16:08,957 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 781 [2024-09-12 18:16:08,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:16:08,960 INFO L225 Difference]: With dead ends: 808 [2024-09-12 18:16:08,961 INFO L226 Difference]: Without dead ends: 803 [2024-09-12 18:16:08,966 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1167 GetRequests, 781 SyntacticMatches, 0 SemanticMatches, 386 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37433 ImplicationChecksByTransitivity, 27.5s TimeCoverageRelationStatistics Valid=37255, Invalid=112901, Unknown=0, NotChecked=0, Total=150156 [2024-09-12 18:16:08,967 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 3 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:16:08,967 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 69 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:16:08,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2024-09-12 18:16:09,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 803. [2024-09-12 18:16:09,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 803 states, 794 states have (on average 1.013853904282116) internal successors, (805), 798 states have internal predecessors, (805), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:16:09,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 809 transitions. [2024-09-12 18:16:09,019 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 809 transitions. Word has length 781 [2024-09-12 18:16:09,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:16:09,020 INFO L474 AbstractCegarLoop]: Abstraction has 803 states and 809 transitions. [2024-09-12 18:16:09,020 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 18:16:09,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:16:09,021 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 809 transitions. [2024-09-12 18:16:09,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 781 [2024-09-12 18:16:09,025 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:16:09,025 INFO L216 NwaCegarLoop]: trace histogram [192, 191, 191, 191, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:16:09,038 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 18:16:09,225 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-09-12 18:16:09,226 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:16:09,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:16:09,226 INFO L85 PathProgramCache]: Analyzing trace with hash 77189226, now seen corresponding path program 1 times [2024-09-12 18:16:09,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:16:09,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278077361] [2024-09-12 18:16:09,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:16:09,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:16:09,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:16:09,393 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:16:09,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:16:09,396 INFO L134 CoverageAnalysis]: Checked inductivity of 73154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73154 trivial. 0 not checked. [2024-09-12 18:16:09,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:16:09,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278077361] [2024-09-12 18:16:09,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278077361] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:16:09,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:16:09,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:16:09,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301539149] [2024-09-12 18:16:09,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:16:09,398 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:16:09,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:16:09,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:16:09,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:16:09,398 INFO L87 Difference]: Start difference. First operand 803 states and 809 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 18:16:09,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:16:09,455 INFO L93 Difference]: Finished difference Result 813 states and 822 transitions. [2024-09-12 18:16:09,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:16:09,455 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 780 [2024-09-12 18:16:09,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:16:09,460 INFO L225 Difference]: With dead ends: 813 [2024-09-12 18:16:09,460 INFO L226 Difference]: Without dead ends: 812 [2024-09-12 18:16:09,461 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:16:09,462 INFO L434 NwaCegarLoop]: 24 mSDtfsCounter, 2 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:16:09,462 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 64 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:16:09,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2024-09-12 18:16:09,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 809. [2024-09-12 18:16:09,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 809 states, 800 states have (on average 1.015) internal successors, (812), 804 states have internal predecessors, (812), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:16:09,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 816 transitions. [2024-09-12 18:16:09,516 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 816 transitions. Word has length 780 [2024-09-12 18:16:09,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:16:09,516 INFO L474 AbstractCegarLoop]: Abstraction has 809 states and 816 transitions. [2024-09-12 18:16:09,517 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 18:16:09,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:16:09,517 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 816 transitions. [2024-09-12 18:16:09,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 782 [2024-09-12 18:16:09,521 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:16:09,521 INFO L216 NwaCegarLoop]: trace histogram [192, 191, 191, 191, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:16:09,521 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-09-12 18:16:09,521 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:16:09,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:16:09,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1902101209, now seen corresponding path program 1 times [2024-09-12 18:16:09,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:16:09,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421713657] [2024-09-12 18:16:09,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:16:09,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:16:09,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:00,480 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:17:00,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:00,490 INFO L134 CoverageAnalysis]: Checked inductivity of 73154 backedges. 192 proven. 72962 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:17:00,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:17:00,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421713657] [2024-09-12 18:17:00,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421713657] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:17:00,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242908240] [2024-09-12 18:17:00,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:17:00,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:17:00,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:17:00,491 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 18:17:00,492 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 18:17:00,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:00,697 INFO L262 TraceCheckSpWp]: Trace formula consists of 1588 conjuncts, 384 conjuncts are in the unsatisfiable core [2024-09-12 18:17:00,714 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:17:01,404 INFO L134 CoverageAnalysis]: Checked inductivity of 73154 backedges. 192 proven. 72962 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:17:01,405 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:18:14,950 INFO L134 CoverageAnalysis]: Checked inductivity of 73154 backedges. 192 proven. 72962 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:18:14,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1242908240] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:18:14,951 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:18:14,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [385, 385, 385] total 770 [2024-09-12 18:18:14,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948181969] [2024-09-12 18:18:14,951 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:18:14,953 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 770 states [2024-09-12 18:18:14,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:18:14,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 770 interpolants. [2024-09-12 18:18:15,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148610, Invalid=443520, Unknown=0, NotChecked=0, Total=592130 [2024-09-12 18:18:15,002 INFO L87 Difference]: Start difference. First operand 809 states and 816 transitions. Second operand has 770 states, 770 states have (on average 2.012987012987013) internal successors, (1550), 770 states have internal predecessors, (1550), 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 18:18:26,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:18:26,016 INFO L93 Difference]: Finished difference Result 1615 states and 1820 transitions. [2024-09-12 18:18:26,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 767 states. [2024-09-12 18:18:26,018 INFO L78 Accepts]: Start accepts. Automaton has has 770 states, 770 states have (on average 2.012987012987013) internal successors, (1550), 770 states have internal predecessors, (1550), 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 781 [2024-09-12 18:18:26,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:18:26,024 INFO L225 Difference]: With dead ends: 1615 [2024-09-12 18:18:26,024 INFO L226 Difference]: Without dead ends: 1577 [2024-09-12 18:18:26,048 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1948 GetRequests, 1180 SyntacticMatches, 0 SemanticMatches, 768 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184886 ImplicationChecksByTransitivity, 100.0s TimeCoverageRelationStatistics Valid=148610, Invalid=443520, Unknown=0, NotChecked=0, Total=592130 [2024-09-12 18:18:26,049 INFO L434 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 1617 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 1617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:18:26,049 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 312 Invalid, 1617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1617 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-09-12 18:18:26,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1577 states. [2024-09-12 18:18:26,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1577 to 1577. [2024-09-12 18:18:26,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1568 states have (on average 1.0076530612244898) internal successors, (1580), 1572 states have internal predecessors, (1580), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:18:26,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 1584 transitions. [2024-09-12 18:18:26,151 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 1584 transitions. Word has length 781 [2024-09-12 18:18:26,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:18:26,152 INFO L474 AbstractCegarLoop]: Abstraction has 1577 states and 1584 transitions. [2024-09-12 18:18:26,153 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 770 states, 770 states have (on average 2.012987012987013) internal successors, (1550), 770 states have internal predecessors, (1550), 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 18:18:26,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:18:26,153 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 1584 transitions. [2024-09-12 18:18:26,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1550 [2024-09-12 18:18:26,165 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:18:26,165 INFO L216 NwaCegarLoop]: trace histogram [384, 383, 383, 383, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:18:26,182 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-09-12 18:18:26,366 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2024-09-12 18:18:26,366 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:18:26,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:18:26,366 INFO L85 PathProgramCache]: Analyzing trace with hash -2015291161, now seen corresponding path program 2 times [2024-09-12 18:18:26,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:18:26,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691566295] [2024-09-12 18:18:26,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:18:26,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:18:27,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat