./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive-simple/id_i20_o20-1.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive-simple/id_i20_o20-1.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 c3376ee309c42e8280cfc81381fd928e4a895fffc424cbfa81d01112976a2d85 --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-12 19:54:24,206 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 19:54:24,291 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 19:54:24,298 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 19:54:24,299 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 19:54:24,329 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 19:54:24,331 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 19:54:24,331 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 19:54:24,332 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 19:54:24,333 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 19:54:24,333 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 19:54:24,333 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 19:54:24,336 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 19:54:24,336 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 19:54:24,337 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 19:54:24,337 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 19:54:24,337 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 19:54:24,338 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 19:54:24,338 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 19:54:24,338 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 19:54:24,338 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 19:54:24,342 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 19:54:24,342 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 19:54:24,342 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 19:54:24,343 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 19:54:24,346 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 19:54:24,346 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 19:54:24,346 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 19:54:24,347 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 19:54:24,347 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 19:54:24,347 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 19:54:24,347 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 19:54:24,347 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:54:24,348 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 19:54:24,348 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 19:54:24,348 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 19:54:24,349 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 19:54:24,349 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 19:54:24,349 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 19:54:24,350 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 19:54:24,350 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 19:54:24,351 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 19:54:24,351 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3376ee309c42e8280cfc81381fd928e4a895fffc424cbfa81d01112976a2d85 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 19:54:24,702 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 19:54:24,726 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 19:54:24,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 19:54:24,731 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 19:54:24,731 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 19:54:24,732 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/recursive-simple/id_i20_o20-1.c [2024-09-12 19:54:26,278 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 19:54:26,511 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 19:54:26,511 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-simple/id_i20_o20-1.c [2024-09-12 19:54:26,521 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/e1379134f/f4d0c30a3f214c2a9e689e8ae08c5a4a/FLAG4fa63ce64 [2024-09-12 19:54:26,538 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/e1379134f/f4d0c30a3f214c2a9e689e8ae08c5a4a [2024-09-12 19:54:26,543 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 19:54:26,545 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 19:54:26,546 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 19:54:26,546 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 19:54:26,553 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 19:54:26,554 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:54:26" (1/1) ... [2024-09-12 19:54:26,555 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71056248 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:54:26, skipping insertion in model container [2024-09-12 19:54:26,555 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:54:26" (1/1) ... [2024-09-12 19:54:26,574 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 19:54:26,739 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-simple/id_i20_o20-1.c[454,467] [2024-09-12 19:54:26,743 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:54:26,757 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 19:54:26,771 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-simple/id_i20_o20-1.c[454,467] [2024-09-12 19:54:26,772 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:54:26,789 INFO L204 MainTranslator]: Completed translation [2024-09-12 19:54:26,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:54:26 WrapperNode [2024-09-12 19:54:26,790 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 19:54:26,791 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 19:54:26,791 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 19:54:26,791 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 19:54:26,798 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:54:26" (1/1) ... [2024-09-12 19:54:26,803 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:54:26" (1/1) ... [2024-09-12 19:54:26,810 INFO L138 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 19:54:26,810 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 19:54:26,811 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 19:54:26,811 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 19:54:26,811 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 19:54:26,820 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:54:26" (1/1) ... [2024-09-12 19:54:26,821 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:54:26" (1/1) ... [2024-09-12 19:54:26,823 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:54:26" (1/1) ... [2024-09-12 19:54:26,840 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-12 19:54:26,840 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:54:26" (1/1) ... [2024-09-12 19:54:26,841 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:54:26" (1/1) ... [2024-09-12 19:54:26,842 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:54:26" (1/1) ... [2024-09-12 19:54:26,843 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:54:26" (1/1) ... [2024-09-12 19:54:26,844 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:54:26" (1/1) ... [2024-09-12 19:54:26,845 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:54:26" (1/1) ... [2024-09-12 19:54:26,847 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 19:54:26,848 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 19:54:26,849 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 19:54:26,850 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 19:54:26,850 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:54:26" (1/1) ... [2024-09-12 19:54:26,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:54:26,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:54:26,882 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-12 19:54:26,888 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-12 19:54:26,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 19:54:26,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 19:54:26,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 19:54:26,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 19:54:26,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 19:54:26,948 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 19:54:26,948 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 19:54:26,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 19:54:26,950 INFO L130 BoogieDeclarations]: Found specification of procedure id [2024-09-12 19:54:26,950 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2024-09-12 19:54:27,038 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 19:54:27,040 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 19:54:27,188 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-09-12 19:54:27,189 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 19:54:27,209 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 19:54:27,209 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-12 19:54:27,210 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:54:27 BoogieIcfgContainer [2024-09-12 19:54:27,210 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 19:54:27,212 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 19:54:27,212 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 19:54:27,216 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 19:54:27,216 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 07:54:26" (1/3) ... [2024-09-12 19:54:27,217 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a884d53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:54:27, skipping insertion in model container [2024-09-12 19:54:27,217 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:54:26" (2/3) ... [2024-09-12 19:54:27,217 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a884d53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:54:27, skipping insertion in model container [2024-09-12 19:54:27,218 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:54:27" (3/3) ... [2024-09-12 19:54:27,219 INFO L112 eAbstractionObserver]: Analyzing ICFG id_i20_o20-1.c [2024-09-12 19:54:27,235 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 19:54:27,236 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-09-12 19:54:27,302 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 19:54:27,312 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;@74c22771, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 19:54:27,313 INFO L337 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-09-12 19:54:27,317 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 20 states have internal predecessors, (22), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:54:27,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-09-12 19:54:27,324 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:54:27,325 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:54:27,325 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-09-12 19:54:27,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:54:27,331 INFO L85 PathProgramCache]: Analyzing trace with hash 697441800, now seen corresponding path program 1 times [2024-09-12 19:54:27,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:54:27,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073085280] [2024-09-12 19:54:27,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:54:27,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:54:27,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:27,538 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:54:27,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:27,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:54:27,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:54:27,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073085280] [2024-09-12 19:54:27,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073085280] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:54:27,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:54:27,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:54:27,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672772669] [2024-09-12 19:54:27,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:54:27,568 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:54:27,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:54:27,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:54:27,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:54:27,592 INFO L87 Difference]: Start difference. First operand has 28 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 20 states have internal predecessors, (22), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:54:27,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:54:27,704 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2024-09-12 19:54:27,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:54:27,706 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2024-09-12 19:54:27,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:54:27,713 INFO L225 Difference]: With dead ends: 52 [2024-09-12 19:54:27,713 INFO L226 Difference]: Without dead ends: 37 [2024-09-12 19:54:27,715 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:54:27,718 INFO L434 NwaCegarLoop]: 23 mSDtfsCounter, 24 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:54:27,719 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 82 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:54:27,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-09-12 19:54:27,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 34. [2024-09-12 19:54:27,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 21 states have (on average 1.380952380952381) internal successors, (29), 25 states have internal predecessors, (29), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:54:27,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2024-09-12 19:54:27,755 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 9 [2024-09-12 19:54:27,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:54:27,755 INFO L474 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2024-09-12 19:54:27,756 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:54:27,756 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:54:27,757 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2024-09-12 19:54:27,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-09-12 19:54:27,757 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:54:27,757 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:54:27,758 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 19:54:27,758 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-09-12 19:54:27,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:54:27,759 INFO L85 PathProgramCache]: Analyzing trace with hash 145859376, now seen corresponding path program 1 times [2024-09-12 19:54:27,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:54:27,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927068892] [2024-09-12 19:54:27,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:54:27,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:54:27,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:27,838 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:54:27,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:27,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:54:27,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:54:27,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927068892] [2024-09-12 19:54:27,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927068892] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:54:27,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:54:27,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:54:27,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711660670] [2024-09-12 19:54:27,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:54:27,850 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:54:27,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:54:27,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:54:27,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:54:27,851 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:54:27,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:54:27,903 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2024-09-12 19:54:27,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:54:27,904 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2024-09-12 19:54:27,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:54:27,906 INFO L225 Difference]: With dead ends: 36 [2024-09-12 19:54:27,906 INFO L226 Difference]: Without dead ends: 35 [2024-09-12 19:54:27,907 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:54:27,908 INFO L434 NwaCegarLoop]: 16 mSDtfsCounter, 22 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:54:27,909 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 43 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:54:27,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-09-12 19:54:27,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2024-09-12 19:54:27,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 24 states have internal predecessors, (27), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:54:27,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2024-09-12 19:54:27,922 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 10 [2024-09-12 19:54:27,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:54:27,922 INFO L474 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2024-09-12 19:54:27,922 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:54:27,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:54:27,923 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2024-09-12 19:54:27,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-09-12 19:54:27,927 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:54:27,927 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:54:27,927 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 19:54:27,928 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-09-12 19:54:27,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:54:27,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1139611612, now seen corresponding path program 1 times [2024-09-12 19:54:27,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:54:27,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459609490] [2024-09-12 19:54:27,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:54:27,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:54:27,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:28,037 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:54:28,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:28,043 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 19:54:28,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:54:28,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459609490] [2024-09-12 19:54:28,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459609490] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:54:28,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024747418] [2024-09-12 19:54:28,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:54:28,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:54:28,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:54:28,047 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:54:28,048 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-12 19:54:28,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:28,105 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 19:54:28,111 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:54:28,167 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 19:54:28,167 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:54:28,260 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 19:54:28,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1024747418] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:54:28,261 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:54:28,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-09-12 19:54:28,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148943063] [2024-09-12 19:54:28,261 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:54:28,262 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 19:54:28,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:54:28,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 19:54:28,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:54:28,264 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 5 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:54:28,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:54:28,457 INFO L93 Difference]: Finished difference Result 91 states and 97 transitions. [2024-09-12 19:54:28,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 19:54:28,458 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 5 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2024-09-12 19:54:28,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:54:28,460 INFO L225 Difference]: With dead ends: 91 [2024-09-12 19:54:28,461 INFO L226 Difference]: Without dead ends: 77 [2024-09-12 19:54:28,462 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-09-12 19:54:28,464 INFO L434 NwaCegarLoop]: 23 mSDtfsCounter, 99 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:54:28,465 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 144 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:54:28,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-09-12 19:54:28,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 63. [2024-09-12 19:54:28,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 45 states have (on average 1.3111111111111111) internal successors, (59), 48 states have internal predecessors, (59), 8 states have call successors, (8), 7 states have call predecessors, (8), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:54:28,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 74 transitions. [2024-09-12 19:54:28,500 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 74 transitions. Word has length 14 [2024-09-12 19:54:28,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:54:28,501 INFO L474 AbstractCegarLoop]: Abstraction has 63 states and 74 transitions. [2024-09-12 19:54:28,501 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 5 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:54:28,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:54:28,502 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 74 transitions. [2024-09-12 19:54:28,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-09-12 19:54:28,503 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:54:28,503 INFO L216 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:54:28,522 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-12 19:54:28,703 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:54:28,704 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-09-12 19:54:28,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:54:28,705 INFO L85 PathProgramCache]: Analyzing trace with hash 482378263, now seen corresponding path program 1 times [2024-09-12 19:54:28,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:54:28,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995959740] [2024-09-12 19:54:28,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:54:28,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:54:28,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:28,767 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:54:28,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:28,773 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-09-12 19:54:28,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:28,828 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-09-12 19:54:28,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:54:28,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995959740] [2024-09-12 19:54:28,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995959740] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:54:28,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:54:28,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:54:28,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144149301] [2024-09-12 19:54:28,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:54:28,830 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:54:28,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:54:28,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:54:28,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:54:28,831 INFO L87 Difference]: Start difference. First operand 63 states and 74 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:54:28,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:54:28,903 INFO L93 Difference]: Finished difference Result 83 states and 101 transitions. [2024-09-12 19:54:28,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:54:28,904 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2024-09-12 19:54:28,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:54:28,906 INFO L225 Difference]: With dead ends: 83 [2024-09-12 19:54:28,906 INFO L226 Difference]: Without dead ends: 81 [2024-09-12 19:54:28,907 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:54:28,911 INFO L434 NwaCegarLoop]: 14 mSDtfsCounter, 13 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:54:28,911 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 43 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:54:28,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-09-12 19:54:28,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2024-09-12 19:54:28,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 60 states have (on average 1.2333333333333334) internal successors, (74), 62 states have internal predecessors, (74), 8 states have call successors, (8), 7 states have call predecessors, (8), 9 states have return successors, (11), 11 states have call predecessors, (11), 7 states have call successors, (11) [2024-09-12 19:54:28,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 93 transitions. [2024-09-12 19:54:28,952 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 93 transitions. Word has length 22 [2024-09-12 19:54:28,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:54:28,953 INFO L474 AbstractCegarLoop]: Abstraction has 81 states and 93 transitions. [2024-09-12 19:54:28,953 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:54:28,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:54:28,955 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 93 transitions. [2024-09-12 19:54:28,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-09-12 19:54:28,955 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:54:28,956 INFO L216 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:54:28,956 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-12 19:54:28,956 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-09-12 19:54:28,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:54:28,956 INFO L85 PathProgramCache]: Analyzing trace with hash -603481423, now seen corresponding path program 1 times [2024-09-12 19:54:28,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:54:28,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127874351] [2024-09-12 19:54:28,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:54:28,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:54:28,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:29,004 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:54:29,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:29,011 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:54:29,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:29,027 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:54:29,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:29,037 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:54:29,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:54:29,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127874351] [2024-09-12 19:54:29,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127874351] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:54:29,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:54:29,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:54:29,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452136347] [2024-09-12 19:54:29,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:54:29,041 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:54:29,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:54:29,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:54:29,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:54:29,043 INFO L87 Difference]: Start difference. First operand 81 states and 93 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:54:29,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:54:29,077 INFO L93 Difference]: Finished difference Result 81 states and 93 transitions. [2024-09-12 19:54:29,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:54:29,077 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2024-09-12 19:54:29,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:54:29,079 INFO L225 Difference]: With dead ends: 81 [2024-09-12 19:54:29,079 INFO L226 Difference]: Without dead ends: 80 [2024-09-12 19:54:29,079 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:54:29,080 INFO L434 NwaCegarLoop]: 19 mSDtfsCounter, 1 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 37 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 19:54:29,080 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 37 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:54:29,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-09-12 19:54:29,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-09-12 19:54:29,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 60 states have (on average 1.15) internal successors, (69), 61 states have internal predecessors, (69), 8 states have call successors, (8), 7 states have call predecessors, (8), 9 states have return successors, (11), 11 states have call predecessors, (11), 7 states have call successors, (11) [2024-09-12 19:54:29,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 88 transitions. [2024-09-12 19:54:29,111 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 88 transitions. Word has length 27 [2024-09-12 19:54:29,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:54:29,111 INFO L474 AbstractCegarLoop]: Abstraction has 80 states and 88 transitions. [2024-09-12 19:54:29,111 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:54:29,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:54:29,112 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 88 transitions. [2024-09-12 19:54:29,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-09-12 19:54:29,113 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:54:29,113 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:54:29,113 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-09-12 19:54:29,114 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-09-12 19:54:29,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:54:29,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1734641416, now seen corresponding path program 2 times [2024-09-12 19:54:29,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:54:29,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923883721] [2024-09-12 19:54:29,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:54:29,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:54:29,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:29,327 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:54:29,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:29,335 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:54:29,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:54:29,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923883721] [2024-09-12 19:54:29,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923883721] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:54:29,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067810087] [2024-09-12 19:54:29,335 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:54:29,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:54:29,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:54:29,337 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:54:29,339 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-12 19:54:29,380 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:54:29,380 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:54:29,381 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 19:54:29,382 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:54:29,453 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:54:29,453 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:54:29,693 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:54:29,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067810087] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:54:29,693 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:54:29,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2024-09-12 19:54:29,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497137524] [2024-09-12 19:54:29,694 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:54:29,694 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-12 19:54:29,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:54:29,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-12 19:54:29,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2024-09-12 19:54:29,696 INFO L87 Difference]: Start difference. First operand 80 states and 88 transitions. Second operand has 24 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 14 states have internal predecessors, (41), 11 states have call successors, (12), 11 states have call predecessors, (12), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:54:30,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:54:30,106 INFO L93 Difference]: Finished difference Result 203 states and 219 transitions. [2024-09-12 19:54:30,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-09-12 19:54:30,106 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 14 states have internal predecessors, (41), 11 states have call successors, (12), 11 states have call predecessors, (12), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2024-09-12 19:54:30,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:54:30,108 INFO L225 Difference]: With dead ends: 203 [2024-09-12 19:54:30,108 INFO L226 Difference]: Without dead ends: 165 [2024-09-12 19:54:30,109 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=311, Invalid=811, Unknown=0, NotChecked=0, Total=1122 [2024-09-12 19:54:30,109 INFO L434 NwaCegarLoop]: 35 mSDtfsCounter, 227 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:54:30,110 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 272 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:54:30,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-09-12 19:54:30,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 155. [2024-09-12 19:54:30,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 120 states have (on average 1.15) internal successors, (138), 121 states have internal predecessors, (138), 14 states have call successors, (14), 13 states have call predecessors, (14), 18 states have return successors, (20), 20 states have call predecessors, (20), 13 states have call successors, (20) [2024-09-12 19:54:30,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 172 transitions. [2024-09-12 19:54:30,146 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 172 transitions. Word has length 29 [2024-09-12 19:54:30,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:54:30,146 INFO L474 AbstractCegarLoop]: Abstraction has 155 states and 172 transitions. [2024-09-12 19:54:30,146 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 14 states have internal predecessors, (41), 11 states have call successors, (12), 11 states have call predecessors, (12), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:54:30,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:54:30,147 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 172 transitions. [2024-09-12 19:54:30,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-09-12 19:54:30,148 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:54:30,148 INFO L216 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:54:30,166 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 19:54:30,348 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-12 19:54:30,349 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-09-12 19:54:30,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:54:30,349 INFO L85 PathProgramCache]: Analyzing trace with hash -2132070951, now seen corresponding path program 1 times [2024-09-12 19:54:30,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:54:30,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143772989] [2024-09-12 19:54:30,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:54:30,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:54:30,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:30,425 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:54:30,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:30,430 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-09-12 19:54:30,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:30,477 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:54:30,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:30,532 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-09-12 19:54:30,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:54:30,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143772989] [2024-09-12 19:54:30,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143772989] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:54:30,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1579748756] [2024-09-12 19:54:30,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:54:30,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:54:30,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:54:30,535 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:54:30,537 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-12 19:54:30,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:30,581 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 19:54:30,583 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:54:30,789 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 3 proven. 60 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-12 19:54:30,789 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:54:31,180 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 3 proven. 61 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 19:54:31,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1579748756] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:54:31,180 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:54:31,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 14, 15] total 30 [2024-09-12 19:54:31,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122760892] [2024-09-12 19:54:31,181 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:54:31,181 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-09-12 19:54:31,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:54:31,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-09-12 19:54:31,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=725, Unknown=0, NotChecked=0, Total=870 [2024-09-12 19:54:31,183 INFO L87 Difference]: Start difference. First operand 155 states and 172 transitions. Second operand has 30 states, 28 states have (on average 2.4642857142857144) internal successors, (69), 22 states have internal predecessors, (69), 13 states have call successors, (16), 9 states have call predecessors, (16), 5 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 19:54:31,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:54:31,667 INFO L93 Difference]: Finished difference Result 223 states and 242 transitions. [2024-09-12 19:54:31,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-09-12 19:54:31,668 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 28 states have (on average 2.4642857142857144) internal successors, (69), 22 states have internal predecessors, (69), 13 states have call successors, (16), 9 states have call predecessors, (16), 5 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 43 [2024-09-12 19:54:31,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:54:31,670 INFO L225 Difference]: With dead ends: 223 [2024-09-12 19:54:31,670 INFO L226 Difference]: Without dead ends: 151 [2024-09-12 19:54:31,671 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 74 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=318, Invalid=1322, Unknown=0, NotChecked=0, Total=1640 [2024-09-12 19:54:31,672 INFO L434 NwaCegarLoop]: 51 mSDtfsCounter, 213 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:54:31,672 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 428 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:54:31,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-09-12 19:54:31,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 143. [2024-09-12 19:54:31,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 111 states have (on average 1.117117117117117) internal successors, (124), 111 states have internal predecessors, (124), 14 states have call successors, (14), 13 states have call predecessors, (14), 15 states have return successors, (18), 18 states have call predecessors, (18), 13 states have call successors, (18) [2024-09-12 19:54:31,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 156 transitions. [2024-09-12 19:54:31,721 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 156 transitions. Word has length 43 [2024-09-12 19:54:31,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:54:31,721 INFO L474 AbstractCegarLoop]: Abstraction has 143 states and 156 transitions. [2024-09-12 19:54:31,722 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 28 states have (on average 2.4642857142857144) internal successors, (69), 22 states have internal predecessors, (69), 13 states have call successors, (16), 9 states have call predecessors, (16), 5 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 19:54:31,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:54:31,722 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 156 transitions. [2024-09-12 19:54:31,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-09-12 19:54:31,728 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:54:31,728 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:54:31,748 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 19:54:31,934 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-09-12 19:54:31,935 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-09-12 19:54:31,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:54:31,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1956580216, now seen corresponding path program 3 times [2024-09-12 19:54:31,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:54:31,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003904030] [2024-09-12 19:54:31,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:54:31,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:54:31,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:32,430 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:54:32,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:32,435 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:54:32,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:54:32,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003904030] [2024-09-12 19:54:32,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003904030] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:54:32,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307337847] [2024-09-12 19:54:32,436 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:54:32,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:54:32,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:54:32,440 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:54:32,441 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-12 19:54:32,491 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-09-12 19:54:32,492 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:54:32,493 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-12 19:54:32,495 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:54:32,584 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:54:32,585 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:54:33,219 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:54:33,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1307337847] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:54:33,220 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:54:33,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2024-09-12 19:54:33,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428731410] [2024-09-12 19:54:33,220 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:54:33,221 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-09-12 19:54:33,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:54:33,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-09-12 19:54:33,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=1700, Unknown=0, NotChecked=0, Total=2256 [2024-09-12 19:54:33,225 INFO L87 Difference]: Start difference. First operand 143 states and 156 transitions. Second operand has 48 states, 45 states have (on average 1.9777777777777779) internal successors, (89), 26 states have internal predecessors, (89), 23 states have call successors, (24), 23 states have call predecessors, (24), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:54:34,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:54:34,143 INFO L93 Difference]: Finished difference Result 453 states and 485 transitions. [2024-09-12 19:54:34,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-09-12 19:54:34,144 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 45 states have (on average 1.9777777777777779) internal successors, (89), 26 states have internal predecessors, (89), 23 states have call successors, (24), 23 states have call predecessors, (24), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2024-09-12 19:54:34,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:54:34,147 INFO L225 Difference]: With dead ends: 453 [2024-09-12 19:54:34,147 INFO L226 Difference]: Without dead ends: 395 [2024-09-12 19:54:34,149 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 924 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1337, Invalid=3493, Unknown=0, NotChecked=0, Total=4830 [2024-09-12 19:54:34,150 INFO L434 NwaCegarLoop]: 64 mSDtfsCounter, 664 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 666 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:54:34,150 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [666 Valid, 583 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:54:34,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2024-09-12 19:54:34,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 373. [2024-09-12 19:54:34,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 295 states have (on average 1.1220338983050848) internal successors, (331), 295 states have internal predecessors, (331), 26 states have call successors, (26), 25 states have call predecessors, (26), 49 states have return successors, (52), 52 states have call predecessors, (52), 25 states have call successors, (52) [2024-09-12 19:54:34,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 409 transitions. [2024-09-12 19:54:34,225 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 409 transitions. Word has length 59 [2024-09-12 19:54:34,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:54:34,228 INFO L474 AbstractCegarLoop]: Abstraction has 373 states and 409 transitions. [2024-09-12 19:54:34,228 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 45 states have (on average 1.9777777777777779) internal successors, (89), 26 states have internal predecessors, (89), 23 states have call successors, (24), 23 states have call predecessors, (24), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:54:34,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:54:34,229 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 409 transitions. [2024-09-12 19:54:34,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-09-12 19:54:34,230 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:54:34,230 INFO L216 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:54:34,243 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-09-12 19:54:34,432 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:54:34,432 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-09-12 19:54:34,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:54:34,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1436755099, now seen corresponding path program 2 times [2024-09-12 19:54:34,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:54:34,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538318519] [2024-09-12 19:54:34,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:54:34,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:54:34,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:34,783 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:54:34,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:34,786 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-09-12 19:54:34,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:34,835 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:54:34,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:34,869 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:54:34,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:34,913 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 6 proven. 299 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-09-12 19:54:34,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:54:34,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538318519] [2024-09-12 19:54:34,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538318519] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:54:34,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472353852] [2024-09-12 19:54:34,913 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:54:34,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:54:34,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:54:34,915 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:54:34,916 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-12 19:54:34,967 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:54:34,967 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:54:34,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-09-12 19:54:34,971 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:54:35,104 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 6 proven. 297 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-09-12 19:54:35,104 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:54:35,862 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 6 proven. 303 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-12 19:54:35,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472353852] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:54:35,863 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:54:35,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 25, 27] total 48 [2024-09-12 19:54:35,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119798546] [2024-09-12 19:54:35,863 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:54:35,864 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-09-12 19:54:35,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:54:35,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-09-12 19:54:35,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=444, Invalid=1812, Unknown=0, NotChecked=0, Total=2256 [2024-09-12 19:54:35,866 INFO L87 Difference]: Start difference. First operand 373 states and 409 transitions. Second operand has 48 states, 46 states have (on average 2.282608695652174) internal successors, (105), 31 states have internal predecessors, (105), 24 states have call successors, (26), 18 states have call predecessors, (26), 5 states have return successors, (9), 4 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:54:36,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:54:36,554 INFO L93 Difference]: Finished difference Result 492 states and 527 transitions. [2024-09-12 19:54:36,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-09-12 19:54:36,555 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 46 states have (on average 2.282608695652174) internal successors, (105), 31 states have internal predecessors, (105), 24 states have call successors, (26), 18 states have call predecessors, (26), 5 states have return successors, (9), 4 states have call predecessors, (9), 7 states have call successors, (9) Word has length 78 [2024-09-12 19:54:36,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:54:36,558 INFO L225 Difference]: With dead ends: 492 [2024-09-12 19:54:36,558 INFO L226 Difference]: Without dead ends: 310 [2024-09-12 19:54:36,563 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 136 SyntacticMatches, 5 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1100 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1042, Invalid=3380, Unknown=0, NotChecked=0, Total=4422 [2024-09-12 19:54:36,564 INFO L434 NwaCegarLoop]: 100 mSDtfsCounter, 432 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:54:36,564 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 906 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:54:36,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2024-09-12 19:54:36,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 283. [2024-09-12 19:54:36,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 223 states have (on average 1.1210762331838564) internal successors, (250), 223 states have internal predecessors, (250), 26 states have call successors, (26), 25 states have call predecessors, (26), 31 states have return successors, (34), 34 states have call predecessors, (34), 25 states have call successors, (34) [2024-09-12 19:54:36,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 310 transitions. [2024-09-12 19:54:36,617 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 310 transitions. Word has length 78 [2024-09-12 19:54:36,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:54:36,618 INFO L474 AbstractCegarLoop]: Abstraction has 283 states and 310 transitions. [2024-09-12 19:54:36,618 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 46 states have (on average 2.282608695652174) internal successors, (105), 31 states have internal predecessors, (105), 24 states have call successors, (26), 18 states have call predecessors, (26), 5 states have return successors, (9), 4 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:54:36,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:54:36,619 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 310 transitions. [2024-09-12 19:54:36,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-09-12 19:54:36,623 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:54:36,623 INFO L216 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:54:36,641 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-12 19:54:36,824 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:54:36,824 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-09-12 19:54:36,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:54:36,825 INFO L85 PathProgramCache]: Analyzing trace with hash 304607112, now seen corresponding path program 4 times [2024-09-12 19:54:36,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:54:36,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536864898] [2024-09-12 19:54:36,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:54:36,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:54:36,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:37,984 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:54:37,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:37,988 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:54:37,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:54:37,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536864898] [2024-09-12 19:54:37,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536864898] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:54:37,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256178724] [2024-09-12 19:54:37,989 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 19:54:37,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:54:37,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:54:37,992 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:54:37,994 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-12 19:54:38,053 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 19:54:38,053 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:54:38,055 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-09-12 19:54:38,059 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:54:38,217 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:54:38,218 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:54:40,149 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:54:40,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [256178724] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:54:40,150 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:54:40,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2024-09-12 19:54:40,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154866245] [2024-09-12 19:54:40,152 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:54:40,154 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2024-09-12 19:54:40,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:54:40,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2024-09-12 19:54:40,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2260, Invalid=6860, Unknown=0, NotChecked=0, Total=9120 [2024-09-12 19:54:40,159 INFO L87 Difference]: Start difference. First operand 283 states and 310 transitions. Second operand has 96 states, 93 states have (on average 1.989247311827957) internal successors, (185), 50 states have internal predecessors, (185), 47 states have call successors, (48), 47 states have call predecessors, (48), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:54:40,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:54:40,932 INFO L93 Difference]: Finished difference Result 303 states and 310 transitions. [2024-09-12 19:54:40,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-09-12 19:54:40,933 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 93 states have (on average 1.989247311827957) internal successors, (185), 50 states have internal predecessors, (185), 47 states have call successors, (48), 47 states have call predecessors, (48), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 119 [2024-09-12 19:54:40,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:54:40,935 INFO L225 Difference]: With dead ends: 303 [2024-09-12 19:54:40,935 INFO L226 Difference]: Without dead ends: 302 [2024-09-12 19:54:40,938 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2873 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=4100, Invalid=9706, Unknown=0, NotChecked=0, Total=13806 [2024-09-12 19:54:40,939 INFO L434 NwaCegarLoop]: 108 mSDtfsCounter, 631 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:54:40,939 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [632 Valid, 910 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:54:40,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2024-09-12 19:54:40,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 282. [2024-09-12 19:54:40,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 223 states have (on average 1.116591928251121) internal successors, (249), 222 states have internal predecessors, (249), 26 states have call successors, (26), 25 states have call predecessors, (26), 31 states have return successors, (34), 34 states have call predecessors, (34), 25 states have call successors, (34) [2024-09-12 19:54:40,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 309 transitions. [2024-09-12 19:54:40,986 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 309 transitions. Word has length 119 [2024-09-12 19:54:40,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:54:40,987 INFO L474 AbstractCegarLoop]: Abstraction has 282 states and 309 transitions. [2024-09-12 19:54:40,987 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 93 states have (on average 1.989247311827957) internal successors, (185), 50 states have internal predecessors, (185), 47 states have call successors, (48), 47 states have call predecessors, (48), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:54:40,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:54:40,988 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 309 transitions. [2024-09-12 19:54:40,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-09-12 19:54:40,989 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:54:40,989 INFO L216 NwaCegarLoop]: trace histogram [21, 20, 20, 20, 20, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:54:41,006 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-12 19:54:41,190 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-09-12 19:54:41,190 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-09-12 19:54:41,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:54:41,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1289462087, now seen corresponding path program 3 times [2024-09-12 19:54:41,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:54:41,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644528649] [2024-09-12 19:54:41,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:54:41,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:54:41,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:41,311 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:54:41,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:41,314 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 19:54:41,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:41,342 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:54:41,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:41,364 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:54:41,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:41,392 INFO L134 CoverageAnalysis]: Checked inductivity of 1005 backedges. 20 proven. 15 refuted. 0 times theorem prover too weak. 970 trivial. 0 not checked. [2024-09-12 19:54:41,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:54:41,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644528649] [2024-09-12 19:54:41,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644528649] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:54:41,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [844174034] [2024-09-12 19:54:41,392 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:54:41,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:54:41,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:54:41,394 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:54:41,395 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-12 19:54:41,440 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-09-12 19:54:41,440 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:54:41,441 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:54:41,443 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:54:41,496 INFO L134 CoverageAnalysis]: Checked inductivity of 1005 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2024-09-12 19:54:41,496 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:54:41,664 INFO L134 CoverageAnalysis]: Checked inductivity of 1005 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2024-09-12 19:54:41,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [844174034] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:54:41,664 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:54:41,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 16 [2024-09-12 19:54:41,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229866870] [2024-09-12 19:54:41,665 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:54:41,665 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 19:54:41,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:54:41,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 19:54:41,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-09-12 19:54:41,667 INFO L87 Difference]: Start difference. First operand 282 states and 309 transitions. Second operand has 17 states, 16 states have (on average 2.375) internal successors, (38), 17 states have internal predecessors, (38), 1 states have call successors, (4), 1 states have call predecessors, (4), 8 states have return successors, (8), 8 states have call predecessors, (8), 1 states have call successors, (8) [2024-09-12 19:54:41,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:54:41,823 INFO L93 Difference]: Finished difference Result 425 states and 485 transitions. [2024-09-12 19:54:41,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 19:54:41,824 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.375) internal successors, (38), 17 states have internal predecessors, (38), 1 states have call successors, (4), 1 states have call predecessors, (4), 8 states have return successors, (8), 8 states have call predecessors, (8), 1 states have call successors, (8) Word has length 123 [2024-09-12 19:54:41,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:54:41,827 INFO L225 Difference]: With dead ends: 425 [2024-09-12 19:54:41,829 INFO L226 Difference]: Without dead ends: 424 [2024-09-12 19:54:41,830 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=168, Invalid=588, Unknown=0, NotChecked=0, Total=756 [2024-09-12 19:54:41,831 INFO L434 NwaCegarLoop]: 13 mSDtfsCounter, 31 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:54:41,831 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 79 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:54:41,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2024-09-12 19:54:41,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 424. [2024-09-12 19:54:41,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 339 states have (on average 1.0766961651917404) internal successors, (365), 334 states have internal predecessors, (365), 26 states have call successors, (26), 25 states have call predecessors, (26), 57 states have return successors, (64), 64 states have call predecessors, (64), 25 states have call successors, (64) [2024-09-12 19:54:41,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 455 transitions. [2024-09-12 19:54:41,913 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 455 transitions. Word has length 123 [2024-09-12 19:54:41,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:54:41,914 INFO L474 AbstractCegarLoop]: Abstraction has 424 states and 455 transitions. [2024-09-12 19:54:41,914 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.375) internal successors, (38), 17 states have internal predecessors, (38), 1 states have call successors, (4), 1 states have call predecessors, (4), 8 states have return successors, (8), 8 states have call predecessors, (8), 1 states have call successors, (8) [2024-09-12 19:54:41,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:54:41,915 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 455 transitions. [2024-09-12 19:54:41,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-09-12 19:54:41,917 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:54:41,917 INFO L216 NwaCegarLoop]: trace histogram [21, 20, 20, 20, 20, 7, 7, 7, 7, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:54:41,934 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-12 19:54:42,121 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:54:42,122 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-09-12 19:54:42,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:54:42,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1628946631, now seen corresponding path program 4 times [2024-09-12 19:54:42,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:54:42,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353373378] [2024-09-12 19:54:42,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:54:42,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:54:42,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:42,257 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:54:42,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:42,260 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-09-12 19:54:42,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:42,332 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:54:42,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:42,385 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:54:42,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:42,439 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:54:42,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:42,484 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:54:42,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:42,518 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:54:42,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:42,551 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:54:42,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:42,589 INFO L134 CoverageAnalysis]: Checked inductivity of 1095 backedges. 20 proven. 105 refuted. 0 times theorem prover too weak. 970 trivial. 0 not checked. [2024-09-12 19:54:42,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:54:42,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353373378] [2024-09-12 19:54:42,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353373378] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:54:42,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513760278] [2024-09-12 19:54:42,590 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 19:54:42,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:54:42,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:54:42,592 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:54:42,594 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-12 19:54:42,662 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 19:54:42,662 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:54:42,664 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 19:54:42,666 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:54:42,743 INFO L134 CoverageAnalysis]: Checked inductivity of 1095 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2024-09-12 19:54:42,743 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:54:43,824 INFO L134 CoverageAnalysis]: Checked inductivity of 1095 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2024-09-12 19:54:43,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513760278] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:54:43,825 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:54:43,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 32 [2024-09-12 19:54:43,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258335781] [2024-09-12 19:54:43,826 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:54:43,826 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-09-12 19:54:43,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:54:43,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-09-12 19:54:43,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=273, Invalid=783, Unknown=0, NotChecked=0, Total=1056 [2024-09-12 19:54:43,828 INFO L87 Difference]: Start difference. First operand 424 states and 455 transitions. Second operand has 33 states, 32 states have (on average 2.1875) internal successors, (70), 33 states have internal predecessors, (70), 1 states have call successors, (4), 1 states have call predecessors, (4), 16 states have return successors, (16), 16 states have call predecessors, (16), 1 states have call successors, (16) [2024-09-12 19:54:44,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:54:44,179 INFO L93 Difference]: Finished difference Result 949 states and 1095 transitions. [2024-09-12 19:54:44,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-09-12 19:54:44,179 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 2.1875) internal successors, (70), 33 states have internal predecessors, (70), 1 states have call successors, (4), 1 states have call predecessors, (4), 16 states have return successors, (16), 16 states have call predecessors, (16), 1 states have call successors, (16) Word has length 143 [2024-09-12 19:54:44,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:54:44,186 INFO L225 Difference]: With dead ends: 949 [2024-09-12 19:54:44,186 INFO L226 Difference]: Without dead ends: 948 [2024-09-12 19:54:44,188 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1325 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=720, Invalid=2820, Unknown=0, NotChecked=0, Total=3540 [2024-09-12 19:54:44,188 INFO L434 NwaCegarLoop]: 13 mSDtfsCounter, 63 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:54:44,188 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 133 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:54:44,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-09-12 19:54:44,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 948. [2024-09-12 19:54:44,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 763 states have (on average 1.0340760157273918) internal successors, (789), 750 states have internal predecessors, (789), 26 states have call successors, (26), 25 states have call predecessors, (26), 157 states have return successors, (172), 172 states have call predecessors, (172), 25 states have call successors, (172) [2024-09-12 19:54:44,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 987 transitions. [2024-09-12 19:54:44,300 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 987 transitions. Word has length 143 [2024-09-12 19:54:44,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:54:44,301 INFO L474 AbstractCegarLoop]: Abstraction has 948 states and 987 transitions. [2024-09-12 19:54:44,301 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 2.1875) internal successors, (70), 33 states have internal predecessors, (70), 1 states have call successors, (4), 1 states have call predecessors, (4), 16 states have return successors, (16), 16 states have call predecessors, (16), 1 states have call successors, (16) [2024-09-12 19:54:44,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:54:44,301 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 987 transitions. [2024-09-12 19:54:44,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-09-12 19:54:44,304 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:54:44,305 INFO L216 NwaCegarLoop]: trace histogram [21, 20, 20, 20, 20, 15, 15, 15, 15, 14, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:54:44,321 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 19:54:44,508 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:54:44,509 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-09-12 19:54:44,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:54:44,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1357922361, now seen corresponding path program 5 times [2024-09-12 19:54:44,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:54:44,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832893139] [2024-09-12 19:54:44,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:54:44,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:54:44,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:44,773 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:54:44,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:44,775 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:54:44,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:44,980 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:54:44,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:45,172 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:54:45,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:45,324 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:54:45,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:45,468 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:54:45,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:45,586 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:54:45,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:45,688 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:54:45,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:45,780 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:54:45,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:45,854 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:54:45,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:45,921 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:54:45,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:45,980 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:54:45,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:46,035 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:54:46,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:46,090 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:54:46,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:46,141 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:54:46,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:46,199 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:54:46,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:46,247 INFO L134 CoverageAnalysis]: Checked inductivity of 1515 backedges. 20 proven. 525 refuted. 0 times theorem prover too weak. 970 trivial. 0 not checked. [2024-09-12 19:54:46,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:54:46,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832893139] [2024-09-12 19:54:46,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832893139] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:54:46,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [583593556] [2024-09-12 19:54:46,247 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 19:54:46,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:54:46,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:54:46,249 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:54:46,251 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-12 19:54:46,361 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 21 check-sat command(s) [2024-09-12 19:54:46,362 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:54:46,363 INFO L262 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-09-12 19:54:46,367 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:54:46,503 INFO L134 CoverageAnalysis]: Checked inductivity of 1515 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2024-09-12 19:54:46,505 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:54:57,119 INFO L134 CoverageAnalysis]: Checked inductivity of 1515 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2024-09-12 19:54:57,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [583593556] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:54:57,119 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:54:57,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 31, 31] total 64 [2024-09-12 19:54:57,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63378460] [2024-09-12 19:54:57,119 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:54:57,120 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2024-09-12 19:54:57,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:54:57,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2024-09-12 19:54:57,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1057, Invalid=3103, Unknown=0, NotChecked=0, Total=4160 [2024-09-12 19:54:57,122 INFO L87 Difference]: Start difference. First operand 948 states and 987 transitions. Second operand has 65 states, 64 states have (on average 2.09375) internal successors, (134), 65 states have internal predecessors, (134), 1 states have call successors, (4), 1 states have call predecessors, (4), 32 states have return successors, (32), 32 states have call predecessors, (32), 1 states have call successors, (32) [2024-09-12 19:54:58,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:54:58,352 INFO L93 Difference]: Finished difference Result 2702 states and 3109 transitions. [2024-09-12 19:54:58,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-09-12 19:54:58,353 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 64 states have (on average 2.09375) internal successors, (134), 65 states have internal predecessors, (134), 1 states have call successors, (4), 1 states have call predecessors, (4), 32 states have return successors, (32), 32 states have call predecessors, (32), 1 states have call successors, (32) Word has length 183 [2024-09-12 19:54:58,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:54:58,364 INFO L225 Difference]: With dead ends: 2702 [2024-09-12 19:54:58,364 INFO L226 Difference]: Without dead ends: 2701 [2024-09-12 19:54:58,368 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 487 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6317 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=2976, Invalid=12276, Unknown=0, NotChecked=0, Total=15252 [2024-09-12 19:54:58,368 INFO L434 NwaCegarLoop]: 13 mSDtfsCounter, 127 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:54:58,369 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 124 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:54:58,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2701 states. [2024-09-12 19:54:58,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2701 to 1612. [2024-09-12 19:54:58,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1612 states, 1299 states have (on average 1.0200153964588146) internal successors, (1325), 1278 states have internal predecessors, (1325), 26 states have call successors, (26), 25 states have call predecessors, (26), 285 states have return successors, (316), 308 states have call predecessors, (316), 25 states have call successors, (316) [2024-09-12 19:54:58,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1612 states to 1612 states and 1667 transitions. [2024-09-12 19:54:58,617 INFO L78 Accepts]: Start accepts. Automaton has 1612 states and 1667 transitions. Word has length 183 [2024-09-12 19:54:58,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:54:58,617 INFO L474 AbstractCegarLoop]: Abstraction has 1612 states and 1667 transitions. [2024-09-12 19:54:58,618 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 64 states have (on average 2.09375) internal successors, (134), 65 states have internal predecessors, (134), 1 states have call successors, (4), 1 states have call predecessors, (4), 32 states have return successors, (32), 32 states have call predecessors, (32), 1 states have call successors, (32) [2024-09-12 19:54:58,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:54:58,618 INFO L276 IsEmpty]: Start isEmpty. Operand 1612 states and 1667 transitions. [2024-09-12 19:54:58,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-09-12 19:54:58,621 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:54:58,622 INFO L216 NwaCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:54:58,638 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-09-12 19:54:58,825 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-09-12 19:54:58,826 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-09-12 19:54:58,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:54:58,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1487555829, now seen corresponding path program 1 times [2024-09-12 19:54:58,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:54:58,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791621917] [2024-09-12 19:54:58,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:54:58,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:54:58,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:59,196 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:54:59,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:59,198 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:54:59,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:59,563 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:54:59,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:54:59,870 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:54:59,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:00,277 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:00,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:00,567 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:00,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:00,812 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:00,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:01,026 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:01,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:01,222 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:01,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:01,413 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:01,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:01,570 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:01,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:01,706 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:01,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:01,841 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:01,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:01,986 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:01,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:02,095 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:02,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:02,200 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:02,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:02,294 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:02,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:02,398 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:02,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:02,488 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:02,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:02,571 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:02,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:02,647 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:02,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:02,721 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:02,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:02,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1980 backedges. 20 proven. 990 refuted. 0 times theorem prover too weak. 970 trivial. 0 not checked. [2024-09-12 19:55:02,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:55:02,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791621917] [2024-09-12 19:55:02,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791621917] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:55:02,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306994125] [2024-09-12 19:55:02,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:55:02,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:55:02,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:55:02,809 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:55:02,811 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-12 19:55:03,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:03,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 87 conjuncts are in the unsatisfiable core [2024-09-12 19:55:03,076 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:55:03,232 INFO L134 CoverageAnalysis]: Checked inductivity of 1980 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2024-09-12 19:55:03,232 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:55:04,791 INFO L134 CoverageAnalysis]: Checked inductivity of 1980 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2024-09-12 19:55:04,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1306994125] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:55:04,792 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:55:04,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 45, 45] total 47 [2024-09-12 19:55:04,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708679251] [2024-09-12 19:55:04,793 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:55:04,794 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2024-09-12 19:55:04,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:55:04,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2024-09-12 19:55:04,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=2070, Unknown=0, NotChecked=0, Total=2162 [2024-09-12 19:55:04,795 INFO L87 Difference]: Start difference. First operand 1612 states and 1667 transitions. Second operand has 47 states, 47 states have (on average 2.0) internal successors, (94), 46 states have internal predecessors, (94), 1 states have call successors, (4), 1 states have call predecessors, (4), 23 states have return successors, (23), 22 states have call predecessors, (23), 1 states have call successors, (23) [2024-09-12 19:55:07,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:55:07,170 INFO L93 Difference]: Finished difference Result 2480 states and 2534 transitions. [2024-09-12 19:55:07,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-09-12 19:55:07,171 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 2.0) internal successors, (94), 46 states have internal predecessors, (94), 1 states have call successors, (4), 1 states have call predecessors, (4), 23 states have return successors, (23), 22 states have call predecessors, (23), 1 states have call successors, (23) Word has length 213 [2024-09-12 19:55:07,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:55:07,182 INFO L225 Difference]: With dead ends: 2480 [2024-09-12 19:55:07,182 INFO L226 Difference]: Without dead ends: 2374 [2024-09-12 19:55:07,184 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 554 GetRequests, 469 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 780 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=252, Invalid=7230, Unknown=0, NotChecked=0, Total=7482 [2024-09-12 19:55:07,185 INFO L434 NwaCegarLoop]: 31 mSDtfsCounter, 88 mSDsluCounter, 1255 mSDsCounter, 0 mSdLazyCounter, 3861 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 1286 SdHoareTripleChecker+Invalid, 3861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:55:07,185 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 1286 Invalid, 3861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3861 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-09-12 19:55:07,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2374 states. [2024-09-12 19:55:07,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2374 to 1612. [2024-09-12 19:55:07,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1612 states, 1299 states have (on average 1.0192455735180908) internal successors, (1324), 1278 states have internal predecessors, (1324), 26 states have call successors, (26), 25 states have call predecessors, (26), 285 states have return successors, (316), 308 states have call predecessors, (316), 25 states have call successors, (316) [2024-09-12 19:55:07,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1612 states to 1612 states and 1666 transitions. [2024-09-12 19:55:07,430 INFO L78 Accepts]: Start accepts. Automaton has 1612 states and 1666 transitions. Word has length 213 [2024-09-12 19:55:07,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:55:07,431 INFO L474 AbstractCegarLoop]: Abstraction has 1612 states and 1666 transitions. [2024-09-12 19:55:07,431 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 2.0) internal successors, (94), 46 states have internal predecessors, (94), 1 states have call successors, (4), 1 states have call predecessors, (4), 23 states have return successors, (23), 22 states have call predecessors, (23), 1 states have call successors, (23) [2024-09-12 19:55:07,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:55:07,431 INFO L276 IsEmpty]: Start isEmpty. Operand 1612 states and 1666 transitions. [2024-09-12 19:55:07,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-09-12 19:55:07,435 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:55:07,435 INFO L216 NwaCegarLoop]: trace histogram [22, 22, 21, 21, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:55:07,453 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 19:55:07,639 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-09-12 19:55:07,640 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-09-12 19:55:07,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:55:07,640 INFO L85 PathProgramCache]: Analyzing trace with hash -741489593, now seen corresponding path program 2 times [2024-09-12 19:55:07,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:55:07,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177349749] [2024-09-12 19:55:07,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:55:07,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:55:07,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:07,922 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:55:07,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:07,925 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:55:07,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:08,260 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:08,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:08,576 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:08,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:08,855 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:08,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:09,068 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:09,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:09,301 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:09,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:09,479 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:09,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:09,638 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:09,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:09,777 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:09,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:09,909 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:09,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:10,054 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:10,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:10,151 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:10,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:10,241 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:10,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:10,320 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:10,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:10,389 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:10,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:10,450 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:10,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:10,503 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:10,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:10,552 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:10,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:10,597 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:10,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:10,634 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:10,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:10,669 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:10,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:10,701 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:10,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:10,750 INFO L134 CoverageAnalysis]: Checked inductivity of 2184 backedges. 1050 proven. 63 refuted. 0 times theorem prover too weak. 1071 trivial. 0 not checked. [2024-09-12 19:55:10,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:55:10,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177349749] [2024-09-12 19:55:10,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177349749] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:55:10,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813321314] [2024-09-12 19:55:10,751 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:55:10,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:55:10,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:55:10,753 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:55:10,755 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-12 19:55:11,013 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:55:11,013 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:55:11,015 INFO L262 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-09-12 19:55:11,019 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:55:11,246 INFO L134 CoverageAnalysis]: Checked inductivity of 2184 backedges. 1092 proven. 0 refuted. 0 times theorem prover too weak. 1092 trivial. 0 not checked. [2024-09-12 19:55:11,246 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:55:11,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813321314] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:55:11,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:55:11,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [27] total 29 [2024-09-12 19:55:11,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490176441] [2024-09-12 19:55:11,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:55:11,247 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-09-12 19:55:11,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:55:11,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-09-12 19:55:11,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=290, Invalid=522, Unknown=0, NotChecked=0, Total=812 [2024-09-12 19:55:11,248 INFO L87 Difference]: Start difference. First operand 1612 states and 1666 transitions. Second operand has 26 states, 25 states have (on average 3.8) internal successors, (95), 26 states have internal predecessors, (95), 3 states have call successors, (4), 1 states have call predecessors, (4), 23 states have return successors, (23), 23 states have call predecessors, (23), 3 states have call successors, (23) [2024-09-12 19:55:12,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:55:12,109 INFO L93 Difference]: Finished difference Result 2374 states and 2428 transitions. [2024-09-12 19:55:12,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-12 19:55:12,109 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.8) internal successors, (95), 26 states have internal predecessors, (95), 3 states have call successors, (4), 1 states have call predecessors, (4), 23 states have return successors, (23), 23 states have call predecessors, (23), 3 states have call successors, (23) Word has length 223 [2024-09-12 19:55:12,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:55:12,120 INFO L225 Difference]: With dead ends: 2374 [2024-09-12 19:55:12,120 INFO L226 Difference]: Without dead ends: 1498 [2024-09-12 19:55:12,123 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=815, Invalid=1635, Unknown=0, NotChecked=0, Total=2450 [2024-09-12 19:55:12,123 INFO L434 NwaCegarLoop]: 93 mSDtfsCounter, 9 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:55:12,124 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 408 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:55:12,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1498 states. [2024-09-12 19:55:12,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1498 to 1498. [2024-09-12 19:55:12,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1498 states, 1208 states have (on average 1.0190397350993377) internal successors, (1231), 1187 states have internal predecessors, (1231), 26 states have call successors, (26), 25 states have call predecessors, (26), 263 states have return successors, (285), 285 states have call predecessors, (285), 24 states have call successors, (285) [2024-09-12 19:55:12,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 1542 transitions. [2024-09-12 19:55:12,398 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 1542 transitions. Word has length 223 [2024-09-12 19:55:12,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:55:12,399 INFO L474 AbstractCegarLoop]: Abstraction has 1498 states and 1542 transitions. [2024-09-12 19:55:12,399 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.8) internal successors, (95), 26 states have internal predecessors, (95), 3 states have call successors, (4), 1 states have call predecessors, (4), 23 states have return successors, (23), 23 states have call predecessors, (23), 3 states have call successors, (23) [2024-09-12 19:55:12,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:55:12,399 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 1542 transitions. [2024-09-12 19:55:12,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2024-09-12 19:55:12,406 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:55:12,406 INFO L216 NwaCegarLoop]: trace histogram [32, 31, 31, 31, 31, 31, 31, 31, 31, 30, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:55:12,425 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-09-12 19:55:12,610 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-12 19:55:12,611 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-09-12 19:55:12,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:55:12,611 INFO L85 PathProgramCache]: Analyzing trace with hash 326579739, now seen corresponding path program 6 times [2024-09-12 19:55:12,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:55:12,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060186908] [2024-09-12 19:55:12,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:55:12,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:55:12,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:13,211 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:55:13,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:13,213 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:55:13,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:13,742 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:13,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:14,303 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:14,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:14,803 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:14,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:15,292 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:15,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:15,676 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:15,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:16,188 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:16,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:16,551 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:16,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:16,863 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:16,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:17,173 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:17,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:17,445 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:17,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:17,687 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:17,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:17,917 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:17,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:18,162 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:18,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:18,362 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:18,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:18,569 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:18,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:18,747 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:18,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:18,903 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:18,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:19,047 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:19,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:19,184 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:19,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:19,309 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:19,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:19,424 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:19,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:19,538 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:19,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:19,639 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:19,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:19,736 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:19,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:19,815 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:19,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:19,910 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:19,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:19,996 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:19,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:20,085 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:20,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:20,156 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:20,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:20,218 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:55:20,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:55:20,283 INFO L134 CoverageAnalysis]: Checked inductivity of 4712 backedges. 31 proven. 2325 refuted. 0 times theorem prover too weak. 2356 trivial. 0 not checked. [2024-09-12 19:55:20,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:55:20,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060186908] [2024-09-12 19:55:20,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060186908] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:55:20,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [181092146] [2024-09-12 19:55:20,283 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 19:55:20,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:55:20,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:55:20,286 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:55:20,288 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-12 19:55:20,541 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 32 check-sat command(s) [2024-09-12 19:55:20,542 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:55:20,544 INFO L262 TraceCheckSpWp]: Trace formula consists of 596 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-09-12 19:55:20,549 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:55:21,906 INFO L134 CoverageAnalysis]: Checked inductivity of 4712 backedges. 2325 proven. 152 refuted. 0 times theorem prover too weak. 2235 trivial. 0 not checked. [2024-09-12 19:55:21,907 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:57:48,438 INFO L134 CoverageAnalysis]: Checked inductivity of 4712 backedges. 2325 proven. 1922 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2024-09-12 19:57:48,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [181092146] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:57:48,438 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:57:48,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 37, 67] total 134 [2024-09-12 19:57:48,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673557124] [2024-09-12 19:57:48,439 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:57:48,439 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 134 states [2024-09-12 19:57:48,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:57:48,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 134 interpolants. [2024-09-12 19:57:48,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2236, Invalid=15586, Unknown=0, NotChecked=0, Total=17822 [2024-09-12 19:57:48,444 INFO L87 Difference]: Start difference. First operand 1498 states and 1542 transitions. Second operand has 134 states, 132 states have (on average 2.977272727272727) internal successors, (393), 132 states have internal predecessors, (393), 36 states have call successors, (39), 3 states have call predecessors, (39), 63 states have return successors, (94), 63 states have call predecessors, (94), 34 states have call successors, (94) [2024-09-12 19:57:49,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:57:49,414 INFO L93 Difference]: Finished difference Result 1498 states and 1542 transitions. [2024-09-12 19:57:49,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-09-12 19:57:49,415 INFO L78 Accepts]: Start accepts. Automaton has has 134 states, 132 states have (on average 2.977272727272727) internal successors, (393), 132 states have internal predecessors, (393), 36 states have call successors, (39), 3 states have call predecessors, (39), 63 states have return successors, (94), 63 states have call predecessors, (94), 34 states have call successors, (94) Word has length 318 [2024-09-12 19:57:49,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:57:49,419 INFO L225 Difference]: With dead ends: 1498 [2024-09-12 19:57:49,419 INFO L226 Difference]: Without dead ends: 0 [2024-09-12 19:57:49,428 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 803 GetRequests, 599 SyntacticMatches, 31 SemanticMatches, 173 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13124 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=5175, Invalid=25275, Unknown=0, NotChecked=0, Total=30450 [2024-09-12 19:57:49,429 INFO L434 NwaCegarLoop]: 27 mSDtfsCounter, 639 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 1180 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 1340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 1180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:57:49,429 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [639 Valid, 503 Invalid, 1340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 1180 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:57:49,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-12 19:57:49,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-12 19:57:49,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-12 19:57:49,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-12 19:57:49,433 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 318 [2024-09-12 19:57:49,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:57:49,433 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-12 19:57:49,434 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 134 states, 132 states have (on average 2.977272727272727) internal successors, (393), 132 states have internal predecessors, (393), 36 states have call successors, (39), 3 states have call predecessors, (39), 63 states have return successors, (94), 63 states have call predecessors, (94), 34 states have call successors, (94) [2024-09-12 19:57:49,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:57:49,434 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-12 19:57:49,435 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-12 19:57:49,437 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2024-09-12 19:57:49,438 INFO L785 garLoopResultBuilder]: Registering result SAFE for location idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 5 remaining) [2024-09-12 19:57:49,438 INFO L785 garLoopResultBuilder]: Registering result SAFE for location idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 5 remaining) [2024-09-12 19:57:49,439 INFO L785 garLoopResultBuilder]: Registering result SAFE for location idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 5 remaining) [2024-09-12 19:57:49,440 INFO L785 garLoopResultBuilder]: Registering result SAFE for location idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 5 remaining) [2024-09-12 19:57:49,459 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-09-12 19:57:49,643 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-12 19:57:49,646 INFO L408 BasicCegarLoop]: Path program histogram: [6, 4, 2, 1, 1, 1, 1] [2024-09-12 19:57:49,648 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.