./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-lit/gj2007.i --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-lit/gj2007.i -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e210f4af0021f1e0c887bbfa24b18aad98424108efaad4cfc57802fd9fd5ce53 --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-12 18:03:46,227 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 18:03:46,280 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 18:03:46,284 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 18:03:46,286 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 18:03:46,301 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 18:03:46,302 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 18:03:46,302 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 18:03:46,303 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 18:03:46,303 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 18:03:46,303 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 18:03:46,304 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 18:03:46,304 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 18:03:46,304 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 18:03:46,305 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 18:03:46,305 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 18:03:46,305 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 18:03:46,305 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 18:03:46,306 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 18:03:46,306 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 18:03:46,306 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 18:03:46,313 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 18:03:46,313 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 18:03:46,313 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 18:03:46,313 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 18:03:46,314 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 18:03:46,314 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 18:03:46,314 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 18:03:46,314 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 18:03:46,314 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 18:03:46,314 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 18:03:46,315 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 18:03:46,315 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:03:46,315 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 18:03:46,315 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 18:03:46,315 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 18:03:46,316 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 18:03:46,316 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 18:03:46,316 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 18:03:46,316 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 18:03:46,317 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 18:03:46,323 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 18:03:46,323 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e210f4af0021f1e0c887bbfa24b18aad98424108efaad4cfc57802fd9fd5ce53 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 18:03:46,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 18:03:46,679 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 18:03:46,683 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 18:03:46,684 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 18:03:46,685 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 18:03:46,686 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loop-lit/gj2007.i [2024-09-12 18:03:48,340 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 18:03:48,540 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 18:03:48,541 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gj2007.i [2024-09-12 18:03:48,548 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/0f31b13ed/f20be452f1ea4a539b9ed7fe8388e4a1/FLAG664d960d3 [2024-09-12 18:03:48,562 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/0f31b13ed/f20be452f1ea4a539b9ed7fe8388e4a1 [2024-09-12 18:03:48,565 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 18:03:48,566 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 18:03:48,568 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 18:03:48,568 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 18:03:48,576 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 18:03:48,577 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:03:48" (1/1) ... [2024-09-12 18:03:48,578 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b9767cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:03:48, skipping insertion in model container [2024-09-12 18:03:48,579 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:03:48" (1/1) ... [2024-09-12 18:03:48,597 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 18:03:48,809 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gj2007.i[895,908] [2024-09-12 18:03:48,822 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:03:48,835 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 18:03:48,850 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gj2007.i[895,908] [2024-09-12 18:03:48,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:03:48,885 INFO L204 MainTranslator]: Completed translation [2024-09-12 18:03:48,888 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:03:48 WrapperNode [2024-09-12 18:03:48,889 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 18:03:48,890 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 18:03:48,890 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 18:03:48,890 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 18:03:48,898 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:03:48" (1/1) ... [2024-09-12 18:03:48,906 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:03:48" (1/1) ... [2024-09-12 18:03:48,913 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 18:03:48,913 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 18:03:48,914 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 18:03:48,915 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 18:03:48,915 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 18:03:48,925 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:03:48" (1/1) ... [2024-09-12 18:03:48,925 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:03:48" (1/1) ... [2024-09-12 18:03:48,926 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:03:48" (1/1) ... [2024-09-12 18:03:48,942 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-12 18:03:48,943 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:03:48" (1/1) ... [2024-09-12 18:03:48,943 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:03:48" (1/1) ... [2024-09-12 18:03:48,945 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:03:48" (1/1) ... [2024-09-12 18:03:48,949 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:03:48" (1/1) ... [2024-09-12 18:03:48,950 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:03:48" (1/1) ... [2024-09-12 18:03:48,951 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:03:48" (1/1) ... [2024-09-12 18:03:48,952 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 18:03:48,955 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 18:03:48,955 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 18:03:48,955 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 18:03:48,956 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:03:48" (1/1) ... [2024-09-12 18:03:48,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:03:48,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:03:48,990 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-12 18:03:48,999 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-12 18:03:49,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 18:03:49,048 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 18:03:49,048 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 18:03:49,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 18:03:49,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 18:03:49,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 18:03:49,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 18:03:49,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 18:03:49,050 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 18:03:49,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 18:03:49,117 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 18:03:49,120 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 18:03:49,292 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-09-12 18:03:49,293 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 18:03:49,324 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 18:03:49,325 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-12 18:03:49,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:03:49 BoogieIcfgContainer [2024-09-12 18:03:49,326 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 18:03:49,328 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 18:03:49,329 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 18:03:49,332 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 18:03:49,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 06:03:48" (1/3) ... [2024-09-12 18:03:49,333 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ab982b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:03:49, skipping insertion in model container [2024-09-12 18:03:49,333 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:03:48" (2/3) ... [2024-09-12 18:03:49,334 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ab982b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:03:49, skipping insertion in model container [2024-09-12 18:03:49,334 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:03:49" (3/3) ... [2024-09-12 18:03:49,336 INFO L112 eAbstractionObserver]: Analyzing ICFG gj2007.i [2024-09-12 18:03:49,354 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 18:03:49,354 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-09-12 18:03:49,417 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 18:03:49,424 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;@5a10ceb4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 18:03:49,424 INFO L337 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-09-12 18:03:49,428 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 16 states have (on average 1.6875) internal successors, (27), 23 states have internal predecessors, (27), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:03:49,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-09-12 18:03:49,435 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:03:49,435 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:03:49,436 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-09-12 18:03:49,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:03:49,442 INFO L85 PathProgramCache]: Analyzing trace with hash -897412302, now seen corresponding path program 1 times [2024-09-12 18:03:49,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:03:49,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973957010] [2024-09-12 18:03:49,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:03:49,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:03:49,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:49,611 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:03:49,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:49,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:03:49,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:03:49,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973957010] [2024-09-12 18:03:49,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973957010] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:03:49,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:03:49,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:03:49,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567265734] [2024-09-12 18:03:49,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:03:49,629 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:03:49,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:03:49,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:03:49,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:03:49,655 INFO L87 Difference]: Start difference. First operand has 30 states, 16 states have (on average 1.6875) internal successors, (27), 23 states have internal predecessors, (27), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:03:49,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:03:49,726 INFO L93 Difference]: Finished difference Result 59 states and 71 transitions. [2024-09-12 18:03:49,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:03:49,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 8 [2024-09-12 18:03:49,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:03:49,737 INFO L225 Difference]: With dead ends: 59 [2024-09-12 18:03:49,737 INFO L226 Difference]: Without dead ends: 28 [2024-09-12 18:03:49,741 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:03:49,746 INFO L434 NwaCegarLoop]: 25 mSDtfsCounter, 1 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:03:49,748 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 41 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:03:49,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-09-12 18:03:49,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-09-12 18:03:49,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 23 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:03:49,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2024-09-12 18:03:49,795 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 8 [2024-09-12 18:03:49,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:03:49,796 INFO L474 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2024-09-12 18:03:49,797 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:03:49,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:03:49,798 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2024-09-12 18:03:49,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-09-12 18:03:49,798 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:03:49,798 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:03:49,799 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 18:03:49,799 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-09-12 18:03:49,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:03:49,801 INFO L85 PathProgramCache]: Analyzing trace with hash -740719571, now seen corresponding path program 1 times [2024-09-12 18:03:49,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:03:49,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756784331] [2024-09-12 18:03:49,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:03:49,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:03:49,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:49,910 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:03:49,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:49,921 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:03:49,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:03:49,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756784331] [2024-09-12 18:03:49,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756784331] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:03:49,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2008635318] [2024-09-12 18:03:49,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:03:49,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:03:49,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:03:49,929 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:03:49,931 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-12 18:03:49,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:49,993 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:03:49,998 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:03:50,064 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:03:50,065 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:03:50,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2008635318] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:03:50,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:03:50,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-09-12 18:03:50,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285140860] [2024-09-12 18:03:50,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:03:50,070 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:03:50,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:03:50,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:03:50,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:03:50,072 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:03:50,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:03:50,125 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2024-09-12 18:03:50,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:03:50,126 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2024-09-12 18:03:50,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:03:50,127 INFO L225 Difference]: With dead ends: 28 [2024-09-12 18:03:50,127 INFO L226 Difference]: Without dead ends: 26 [2024-09-12 18:03:50,127 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:03:50,128 INFO L434 NwaCegarLoop]: 12 mSDtfsCounter, 7 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:03:50,128 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 26 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:03:50,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-09-12 18:03:50,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-09-12 18:03:50,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 21 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:03:50,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2024-09-12 18:03:50,138 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 12 [2024-09-12 18:03:50,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:03:50,138 INFO L474 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2024-09-12 18:03:50,138 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:03:50,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:03:50,139 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2024-09-12 18:03:50,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-09-12 18:03:50,139 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:03:50,139 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:03:50,159 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-12 18:03:50,340 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:03:50,341 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-09-12 18:03:50,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:03:50,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1132340157, now seen corresponding path program 1 times [2024-09-12 18:03:50,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:03:50,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285586911] [2024-09-12 18:03:50,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:03:50,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:03:50,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:50,403 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:03:50,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:50,408 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:03:50,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:03:50,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285586911] [2024-09-12 18:03:50,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285586911] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:03:50,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198045783] [2024-09-12 18:03:50,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:03:50,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:03:50,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:03:50,410 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:03:50,412 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-12 18:03:50,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:50,453 INFO L262 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:03:50,454 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:03:50,490 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:03:50,490 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:03:50,522 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:03:50,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198045783] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:03:50,523 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:03:50,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-09-12 18:03:50,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544828345] [2024-09-12 18:03:50,523 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:03:50,524 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:03:50,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:03:50,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:03:50,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:03:50,525 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:03:50,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:03:50,581 INFO L93 Difference]: Finished difference Result 54 states and 65 transitions. [2024-09-12 18:03:50,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:03:50,581 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2024-09-12 18:03:50,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:03:50,582 INFO L225 Difference]: With dead ends: 54 [2024-09-12 18:03:50,582 INFO L226 Difference]: Without dead ends: 37 [2024-09-12 18:03:50,583 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:03:50,584 INFO L434 NwaCegarLoop]: 13 mSDtfsCounter, 15 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:03:50,584 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 39 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:03:50,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-09-12 18:03:50,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2024-09-12 18:03:50,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 28 states have (on average 1.25) internal successors, (35), 30 states have internal predecessors, (35), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:03:50,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2024-09-12 18:03:50,592 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 14 [2024-09-12 18:03:50,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:03:50,593 INFO L474 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2024-09-12 18:03:50,593 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:03:50,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:03:50,593 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2024-09-12 18:03:50,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-09-12 18:03:50,594 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:03:50,594 INFO L216 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:03:50,613 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-12 18:03:50,798 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:03:50,800 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-09-12 18:03:50,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:03:50,801 INFO L85 PathProgramCache]: Analyzing trace with hash 699075978, now seen corresponding path program 1 times [2024-09-12 18:03:50,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:03:50,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967273319] [2024-09-12 18:03:50,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:03:50,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:03:50,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:50,844 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:03:50,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:50,849 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 18:03:50,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:03:50,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967273319] [2024-09-12 18:03:50,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967273319] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:03:50,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:03:50,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:03:50,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776516619] [2024-09-12 18:03:50,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:03:50,851 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:03:50,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:03:50,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:03:50,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:03:50,852 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:03:50,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:03:50,870 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2024-09-12 18:03:50,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:03:50,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2024-09-12 18:03:50,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:03:50,873 INFO L225 Difference]: With dead ends: 35 [2024-09-12 18:03:50,873 INFO L226 Difference]: Without dead ends: 34 [2024-09-12 18:03:50,874 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:03:50,875 INFO L434 NwaCegarLoop]: 16 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:03:50,875 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 23 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:03:50,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-09-12 18:03:50,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-09-12 18:03:50,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 29 states have internal predecessors, (33), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:03:50,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2024-09-12 18:03:50,882 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 18 [2024-09-12 18:03:50,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:03:50,882 INFO L474 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2024-09-12 18:03:50,883 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:03:50,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:03:50,883 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2024-09-12 18:03:50,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-09-12 18:03:50,884 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:03:50,884 INFO L216 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:03:50,884 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-12 18:03:50,884 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-09-12 18:03:50,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:03:50,884 INFO L85 PathProgramCache]: Analyzing trace with hash 196518899, now seen corresponding path program 1 times [2024-09-12 18:03:50,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:03:50,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568371825] [2024-09-12 18:03:50,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:03:50,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:03:50,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:50,922 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:03:50,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:50,927 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 18:03:50,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:03:50,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568371825] [2024-09-12 18:03:50,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568371825] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:03:50,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:03:50,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:03:50,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061958191] [2024-09-12 18:03:50,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:03:50,928 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:03:50,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:03:50,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:03:50,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:03:50,932 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:03:50,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:03:50,963 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2024-09-12 18:03:50,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:03:50,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2024-09-12 18:03:50,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:03:50,966 INFO L225 Difference]: With dead ends: 43 [2024-09-12 18:03:50,966 INFO L226 Difference]: Without dead ends: 42 [2024-09-12 18:03:50,967 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:03:50,967 INFO L434 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:03:50,968 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:03:50,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-09-12 18:03:50,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2024-09-12 18:03:50,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 37 states have internal predecessors, (41), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:03:50,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2024-09-12 18:03:50,983 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 19 [2024-09-12 18:03:50,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:03:50,983 INFO L474 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2024-09-12 18:03:50,983 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:03:50,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:03:50,984 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2024-09-12 18:03:50,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-09-12 18:03:50,984 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:03:50,984 INFO L216 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:03:50,985 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-09-12 18:03:50,985 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-09-12 18:03:50,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:03:50,985 INFO L85 PathProgramCache]: Analyzing trace with hash 127178880, now seen corresponding path program 1 times [2024-09-12 18:03:50,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:03:50,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859636375] [2024-09-12 18:03:50,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:03:50,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:03:50,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:51,039 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:03:51,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:51,046 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 18:03:51,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:03:51,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859636375] [2024-09-12 18:03:51,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859636375] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:03:51,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [651982461] [2024-09-12 18:03:51,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:03:51,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:03:51,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:03:51,049 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:03:51,053 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-12 18:03:51,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:51,092 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:03:51,093 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:03:51,128 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:03:51,129 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:03:51,192 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:03:51,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [651982461] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:03:51,193 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:03:51,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 5, 5] total 10 [2024-09-12 18:03:51,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968666560] [2024-09-12 18:03:51,193 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:03:51,194 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:03:51,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:03:51,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:03:51,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:03:51,197 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:03:51,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:03:51,306 INFO L93 Difference]: Finished difference Result 83 states and 93 transitions. [2024-09-12 18:03:51,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:03:51,307 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-09-12 18:03:51,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:03:51,308 INFO L225 Difference]: With dead ends: 83 [2024-09-12 18:03:51,309 INFO L226 Difference]: Without dead ends: 60 [2024-09-12 18:03:51,309 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=169, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:03:51,310 INFO L434 NwaCegarLoop]: 13 mSDtfsCounter, 10 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:03:51,310 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 56 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:03:51,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-09-12 18:03:51,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 59. [2024-09-12 18:03:51,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 53 states have (on average 1.1132075471698113) internal successors, (59), 54 states have internal predecessors, (59), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:03:51,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 63 transitions. [2024-09-12 18:03:51,319 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 63 transitions. Word has length 25 [2024-09-12 18:03:51,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:03:51,319 INFO L474 AbstractCegarLoop]: Abstraction has 59 states and 63 transitions. [2024-09-12 18:03:51,319 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:03:51,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:03:51,319 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 63 transitions. [2024-09-12 18:03:51,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-09-12 18:03:51,320 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:03:51,320 INFO L216 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:03:51,334 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-12 18:03:51,521 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-12 18:03:51,521 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-09-12 18:03:51,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:03:51,522 INFO L85 PathProgramCache]: Analyzing trace with hash -765878985, now seen corresponding path program 1 times [2024-09-12 18:03:51,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:03:51,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247455080] [2024-09-12 18:03:51,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:03:51,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:03:51,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:51,627 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:03:51,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:51,631 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 7 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:03:51,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:03:51,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247455080] [2024-09-12 18:03:51,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247455080] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:03:51,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [861732685] [2024-09-12 18:03:51,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:03:51,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:03:51,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:03:51,633 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:03:51,635 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-12 18:03:51,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:51,681 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:03:51,682 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:03:51,719 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 7 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:03:51,719 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:03:51,839 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 7 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:03:51,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [861732685] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:03:51,840 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:03:51,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2024-09-12 18:03:51,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065390360] [2024-09-12 18:03:51,841 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:03:51,841 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 18:03:51,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:03:51,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 18:03:51,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:03:51,842 INFO L87 Difference]: Start difference. First operand 59 states and 63 transitions. Second operand has 17 states, 17 states have (on average 4.0) internal successors, (68), 17 states have internal predecessors, (68), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:03:51,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:03:51,913 INFO L93 Difference]: Finished difference Result 119 states and 134 transitions. [2024-09-12 18:03:51,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 18:03:51,913 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.0) internal successors, (68), 17 states have internal predecessors, (68), 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 40 [2024-09-12 18:03:51,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:03:51,914 INFO L225 Difference]: With dead ends: 119 [2024-09-12 18:03:51,914 INFO L226 Difference]: Without dead ends: 91 [2024-09-12 18:03:51,915 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:03:51,915 INFO L434 NwaCegarLoop]: 15 mSDtfsCounter, 4 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:03:51,916 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 25 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:03:51,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-09-12 18:03:51,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-09-12 18:03:51,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 85 states have (on average 1.0705882352941176) internal successors, (91), 86 states have internal predecessors, (91), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:03:51,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 95 transitions. [2024-09-12 18:03:51,928 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 95 transitions. Word has length 40 [2024-09-12 18:03:51,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:03:51,928 INFO L474 AbstractCegarLoop]: Abstraction has 91 states and 95 transitions. [2024-09-12 18:03:51,928 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.0) internal successors, (68), 17 states have internal predecessors, (68), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:03:51,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:03:51,929 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 95 transitions. [2024-09-12 18:03:51,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-09-12 18:03:51,930 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:03:51,930 INFO L216 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:03:51,946 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-12 18:03:52,130 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:03:52,131 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-09-12 18:03:52,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:03:52,133 INFO L85 PathProgramCache]: Analyzing trace with hash -962925809, now seen corresponding path program 2 times [2024-09-12 18:03:52,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:03:52,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634618834] [2024-09-12 18:03:52,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:03:52,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:03:52,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:52,458 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:03:52,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:52,462 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 15 proven. 392 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:03:52,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:03:52,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634618834] [2024-09-12 18:03:52,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634618834] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:03:52,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077502990] [2024-09-12 18:03:52,463 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:03:52,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:03:52,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:03:52,465 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:03:52,466 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-12 18:03:52,508 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:03:52,509 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:03:52,509 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 18:03:52,511 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:03:52,578 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 15 proven. 392 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:03:52,579 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:03:52,910 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 15 proven. 392 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:03:52,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2077502990] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:03:52,910 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:03:52,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 33 [2024-09-12 18:03:52,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725816829] [2024-09-12 18:03:52,911 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:03:52,911 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-09-12 18:03:52,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:03:52,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-09-12 18:03:52,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2024-09-12 18:03:52,913 INFO L87 Difference]: Start difference. First operand 91 states and 95 transitions. Second operand has 33 states, 33 states have (on average 4.0) internal successors, (132), 33 states have internal predecessors, (132), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:03:53,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:03:53,070 INFO L93 Difference]: Finished difference Result 183 states and 206 transitions. [2024-09-12 18:03:53,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-09-12 18:03:53,071 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.0) internal successors, (132), 33 states have internal predecessors, (132), 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 72 [2024-09-12 18:03:53,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:03:53,072 INFO L225 Difference]: With dead ends: 183 [2024-09-12 18:03:53,072 INFO L226 Difference]: Without dead ends: 155 [2024-09-12 18:03:53,073 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2024-09-12 18:03:53,073 INFO L434 NwaCegarLoop]: 15 mSDtfsCounter, 4 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:03:53,074 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 55 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:03:53,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-09-12 18:03:53,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2024-09-12 18:03:53,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 149 states have (on average 1.0402684563758389) internal successors, (155), 150 states have internal predecessors, (155), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:03:53,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 159 transitions. [2024-09-12 18:03:53,091 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 159 transitions. Word has length 72 [2024-09-12 18:03:53,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:03:53,091 INFO L474 AbstractCegarLoop]: Abstraction has 155 states and 159 transitions. [2024-09-12 18:03:53,092 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.0) internal successors, (132), 33 states have internal predecessors, (132), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:03:53,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:03:53,092 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 159 transitions. [2024-09-12 18:03:53,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-09-12 18:03:53,095 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:03:53,095 INFO L216 NwaCegarLoop]: trace histogram [31, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:03:53,107 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 18:03:53,298 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-09-12 18:03:53,299 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-09-12 18:03:53,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:03:53,300 INFO L85 PathProgramCache]: Analyzing trace with hash 626353855, now seen corresponding path program 3 times [2024-09-12 18:03:53,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:03:53,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812084989] [2024-09-12 18:03:53,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:03:53,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:03:53,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:53,988 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:03:53,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:53,992 INFO L134 CoverageAnalysis]: Checked inductivity of 1831 backedges. 31 proven. 1800 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:03:53,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:03:53,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812084989] [2024-09-12 18:03:53,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812084989] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:03:53,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076289247] [2024-09-12 18:03:53,992 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:03:53,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:03:53,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:03:53,995 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:03:54,000 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-12 18:03:54,048 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-09-12 18:03:54,048 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:03:54,049 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:03:54,051 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:03:54,141 INFO L134 CoverageAnalysis]: Checked inductivity of 1831 backedges. 148 proven. 1 refuted. 0 times theorem prover too weak. 1682 trivial. 0 not checked. [2024-09-12 18:03:54,141 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:03:54,240 INFO L134 CoverageAnalysis]: Checked inductivity of 1831 backedges. 148 proven. 1 refuted. 0 times theorem prover too weak. 1682 trivial. 0 not checked. [2024-09-12 18:03:54,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076289247] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:03:54,240 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:03:54,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 5, 5] total 39 [2024-09-12 18:03:54,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964145176] [2024-09-12 18:03:54,241 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:03:54,241 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-09-12 18:03:54,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:03:54,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-09-12 18:03:54,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2024-09-12 18:03:54,243 INFO L87 Difference]: Start difference. First operand 155 states and 159 transitions. Second operand has 39 states, 39 states have (on average 4.0256410256410255) internal successors, (157), 39 states have internal predecessors, (157), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:03:54,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:03:54,402 INFO L93 Difference]: Finished difference Result 224 states and 242 transitions. [2024-09-12 18:03:54,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-09-12 18:03:54,402 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 4.0256410256410255) internal successors, (157), 39 states have internal predecessors, (157), 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 136 [2024-09-12 18:03:54,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:03:54,404 INFO L225 Difference]: With dead ends: 224 [2024-09-12 18:03:54,404 INFO L226 Difference]: Without dead ends: 196 [2024-09-12 18:03:54,405 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2024-09-12 18:03:54,406 INFO L434 NwaCegarLoop]: 14 mSDtfsCounter, 26 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:03:54,406 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 63 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:03:54,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-09-12 18:03:54,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 192. [2024-09-12 18:03:54,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 186 states have (on average 1.075268817204301) internal successors, (200), 187 states have internal predecessors, (200), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:03:54,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 204 transitions. [2024-09-12 18:03:54,424 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 204 transitions. Word has length 136 [2024-09-12 18:03:54,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:03:54,429 INFO L474 AbstractCegarLoop]: Abstraction has 192 states and 204 transitions. [2024-09-12 18:03:54,429 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 4.0256410256410255) internal successors, (157), 39 states have internal predecessors, (157), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:03:54,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:03:54,430 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 204 transitions. [2024-09-12 18:03:54,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-09-12 18:03:54,431 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:03:54,431 INFO L216 NwaCegarLoop]: trace histogram [35, 32, 32, 32, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1] [2024-09-12 18:03:54,445 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-12 18:03:54,631 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:03:54,632 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-09-12 18:03:54,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:03:54,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1743139619, now seen corresponding path program 2 times [2024-09-12 18:03:54,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:03:54,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310639468] [2024-09-12 18:03:54,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:03:54,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:03:54,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:54,740 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:03:54,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:54,743 INFO L134 CoverageAnalysis]: Checked inductivity of 2194 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 2048 trivial. 0 not checked. [2024-09-12 18:03:54,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:03:54,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310639468] [2024-09-12 18:03:54,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310639468] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:03:54,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073432903] [2024-09-12 18:03:54,745 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:03:54,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:03:54,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:03:54,751 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:03:54,752 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-12 18:03:54,803 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:03:54,804 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:03:54,807 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-09-12 18:03:54,809 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:03:55,377 INFO L134 CoverageAnalysis]: Checked inductivity of 2194 backedges. 132 proven. 2048 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-09-12 18:03:55,378 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:03:56,487 INFO L134 CoverageAnalysis]: Checked inductivity of 2194 backedges. 132 proven. 2048 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-09-12 18:03:56,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073432903] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:03:56,488 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:03:56,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 35, 35] total 55 [2024-09-12 18:03:56,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108757448] [2024-09-12 18:03:56,488 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:03:56,489 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2024-09-12 18:03:56,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:03:56,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2024-09-12 18:03:56,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1335, Invalid=1635, Unknown=0, NotChecked=0, Total=2970 [2024-09-12 18:03:56,491 INFO L87 Difference]: Start difference. First operand 192 states and 204 transitions. Second operand has 55 states, 55 states have (on average 4.2) internal successors, (231), 55 states have internal predecessors, (231), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:03:57,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:03:57,826 INFO L93 Difference]: Finished difference Result 341 states and 388 transitions. [2024-09-12 18:03:57,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-09-12 18:03:57,827 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 55 states have (on average 4.2) internal successors, (231), 55 states have internal predecessors, (231), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 151 [2024-09-12 18:03:57,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:03:57,828 INFO L225 Difference]: With dead ends: 341 [2024-09-12 18:03:57,829 INFO L226 Difference]: Without dead ends: 284 [2024-09-12 18:03:57,832 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 238 SyntacticMatches, 16 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2000 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=4195, Invalid=7147, Unknown=0, NotChecked=0, Total=11342 [2024-09-12 18:03:57,833 INFO L434 NwaCegarLoop]: 13 mSDtfsCounter, 11 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:03:57,833 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 84 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:03:57,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2024-09-12 18:03:57,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 284. [2024-09-12 18:03:57,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 278 states have (on average 1.0611510791366907) internal successors, (295), 279 states have internal predecessors, (295), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:03:57,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 299 transitions. [2024-09-12 18:03:57,853 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 299 transitions. Word has length 151 [2024-09-12 18:03:57,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:03:57,854 INFO L474 AbstractCegarLoop]: Abstraction has 284 states and 299 transitions. [2024-09-12 18:03:57,854 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 4.2) internal successors, (231), 55 states have internal predecessors, (231), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:03:57,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:03:57,855 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 299 transitions. [2024-09-12 18:03:57,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-09-12 18:03:57,857 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:03:57,857 INFO L216 NwaCegarLoop]: trace histogram [54, 50, 50, 50, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1] [2024-09-12 18:03:57,872 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-12 18:03:58,060 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:03:58,061 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-09-12 18:03:58,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:03:58,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1808326474, now seen corresponding path program 3 times [2024-09-12 18:03:58,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:03:58,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466127471] [2024-09-12 18:03:58,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:03:58,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:03:58,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:58,185 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:03:58,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:58,207 INFO L134 CoverageAnalysis]: Checked inductivity of 5336 backedges. 0 proven. 336 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2024-09-12 18:03:58,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:03:58,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466127471] [2024-09-12 18:03:58,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466127471] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:03:58,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381032391] [2024-09-12 18:03:58,208 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:03:58,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:03:58,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:03:58,212 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:03:58,214 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-12 18:03:58,247 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-09-12 18:03:58,248 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:03:58,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:03:58,251 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:03:58,427 INFO L134 CoverageAnalysis]: Checked inductivity of 5336 backedges. 0 proven. 336 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2024-09-12 18:03:58,428 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:03:58,632 INFO L134 CoverageAnalysis]: Checked inductivity of 5336 backedges. 0 proven. 336 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2024-09-12 18:03:58,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [381032391] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:03:58,633 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:03:58,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-09-12 18:03:58,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24533031] [2024-09-12 18:03:58,633 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:03:58,634 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:03:58,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:03:58,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:03:58,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:03:58,635 INFO L87 Difference]: Start difference. First operand 284 states and 299 transitions. Second operand has 10 states, 9 states have (on average 6.333333333333333) internal successors, (57), 10 states have internal predecessors, (57), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:03:58,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:03:58,672 INFO L93 Difference]: Finished difference Result 445 states and 510 transitions. [2024-09-12 18:03:58,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:03:58,672 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.333333333333333) internal successors, (57), 10 states have internal predecessors, (57), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 229 [2024-09-12 18:03:58,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:03:58,674 INFO L225 Difference]: With dead ends: 445 [2024-09-12 18:03:58,674 INFO L226 Difference]: Without dead ends: 444 [2024-09-12 18:03:58,675 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 456 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:03:58,675 INFO L434 NwaCegarLoop]: 17 mSDtfsCounter, 36 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:03:58,675 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 86 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:03:58,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2024-09-12 18:03:58,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 441. [2024-09-12 18:03:58,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 435 states have (on average 1.1011494252873564) internal successors, (479), 436 states have internal predecessors, (479), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:03:58,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 483 transitions. [2024-09-12 18:03:58,717 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 483 transitions. Word has length 229 [2024-09-12 18:03:58,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:03:58,717 INFO L474 AbstractCegarLoop]: Abstraction has 441 states and 483 transitions. [2024-09-12 18:03:58,717 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.333333333333333) internal successors, (57), 10 states have internal predecessors, (57), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:03:58,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:03:58,718 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 483 transitions. [2024-09-12 18:03:58,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-09-12 18:03:58,720 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:03:58,720 INFO L216 NwaCegarLoop]: trace histogram [55, 50, 50, 50, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:03:58,733 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-09-12 18:03:58,920 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:03:58,921 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-09-12 18:03:58,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:03:58,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1583880665, now seen corresponding path program 4 times [2024-09-12 18:03:58,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:03:58,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882412653] [2024-09-12 18:03:58,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:03:58,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:03:58,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:04:01,308 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:04:01,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:04:01,315 INFO L134 CoverageAnalysis]: Checked inductivity of 5515 backedges. 0 proven. 5515 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:04:01,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:04:01,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882412653] [2024-09-12 18:04:01,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882412653] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:04:01,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193055612] [2024-09-12 18:04:01,315 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 18:04:01,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:04:01,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:04:01,318 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:04:01,320 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-12 18:04:01,380 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 18:04:01,380 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:04:01,382 INFO L262 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 57 conjuncts are in the unsatisfiable core [2024-09-12 18:04:01,385 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:04:01,614 INFO L134 CoverageAnalysis]: Checked inductivity of 5515 backedges. 0 proven. 5515 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:04:01,614 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:04:04,459 INFO L134 CoverageAnalysis]: Checked inductivity of 5515 backedges. 0 proven. 5515 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:04:04,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [193055612] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:04:04,460 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:04:04,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 58, 58] total 103 [2024-09-12 18:04:04,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501891478] [2024-09-12 18:04:04,460 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:04:04,461 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 103 states [2024-09-12 18:04:04,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:04:04,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2024-09-12 18:04:04,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5253, Invalid=5253, Unknown=0, NotChecked=0, Total=10506 [2024-09-12 18:04:04,465 INFO L87 Difference]: Start difference. First operand 441 states and 483 transitions. Second operand has 103 states, 103 states have (on average 4.310679611650485) internal successors, (444), 103 states have internal predecessors, (444), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:04:05,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:04:05,274 INFO L93 Difference]: Finished difference Result 798 states and 934 transitions. [2024-09-12 18:04:05,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2024-09-12 18:04:05,275 INFO L78 Accepts]: Start accepts. Automaton has has 103 states, 103 states have (on average 4.310679611650485) internal successors, (444), 103 states have internal predecessors, (444), 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 240 [2024-09-12 18:04:05,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:04:05,278 INFO L225 Difference]: With dead ends: 798 [2024-09-12 18:04:05,278 INFO L226 Difference]: Without dead ends: 793 [2024-09-12 18:04:05,280 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 539 GetRequests, 426 SyntacticMatches, 12 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 814 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=5253, Invalid=5253, Unknown=0, NotChecked=0, Total=10506 [2024-09-12 18:04:05,280 INFO L434 NwaCegarLoop]: 20 mSDtfsCounter, 552 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 278 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 278 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:04:05,281 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [552 Valid, 290 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [278 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:04:05,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2024-09-12 18:04:05,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 744. [2024-09-12 18:04:05,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 744 states, 738 states have (on average 1.1856368563685638) internal successors, (875), 739 states have internal predecessors, (875), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:04:05,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 879 transitions. [2024-09-12 18:04:05,312 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 879 transitions. Word has length 240 [2024-09-12 18:04:05,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:04:05,312 INFO L474 AbstractCegarLoop]: Abstraction has 744 states and 879 transitions. [2024-09-12 18:04:05,313 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 103 states, 103 states have (on average 4.310679611650485) internal successors, (444), 103 states have internal predecessors, (444), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:04:05,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:04:05,313 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 879 transitions. [2024-09-12 18:04:05,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2024-09-12 18:04:05,315 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:04:05,315 INFO L216 NwaCegarLoop]: trace histogram [59, 50, 50, 50, 9, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1] [2024-09-12 18:04:05,328 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-12 18:04:05,519 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-09-12 18:04:05,520 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-09-12 18:04:05,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:04:05,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1559827893, now seen corresponding path program 4 times [2024-09-12 18:04:05,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:04:05,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867204424] [2024-09-12 18:04:05,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:04:05,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:04:05,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:04:05,744 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:04:05,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:04:05,749 INFO L134 CoverageAnalysis]: Checked inductivity of 6016 backedges. 0 proven. 1016 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2024-09-12 18:04:05,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:04:05,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867204424] [2024-09-12 18:04:05,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867204424] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:04:05,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976356626] [2024-09-12 18:04:05,750 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 18:04:05,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:04:05,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:04:05,752 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:04:05,759 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-12 18:04:05,826 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 18:04:05,826 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:04:05,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 18:04:05,831 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:04:06,035 INFO L134 CoverageAnalysis]: Checked inductivity of 6016 backedges. 0 proven. 1016 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2024-09-12 18:04:06,035 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:04:06,330 INFO L134 CoverageAnalysis]: Checked inductivity of 6016 backedges. 0 proven. 1016 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2024-09-12 18:04:06,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [976356626] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:04:06,330 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:04:06,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 19 [2024-09-12 18:04:06,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954863435] [2024-09-12 18:04:06,330 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:04:06,331 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-09-12 18:04:06,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:04:06,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-09-12 18:04:06,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2024-09-12 18:04:06,332 INFO L87 Difference]: Start difference. First operand 744 states and 879 transitions. Second operand has 20 states, 19 states have (on average 6.157894736842105) internal successors, (117), 20 states have internal predecessors, (117), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:04:06,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:04:06,449 INFO L93 Difference]: Finished difference Result 1575 states and 1979 transitions. [2024-09-12 18:04:06,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-09-12 18:04:06,449 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 6.157894736842105) internal successors, (117), 20 states have internal predecessors, (117), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 259 [2024-09-12 18:04:06,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:04:06,454 INFO L225 Difference]: With dead ends: 1575 [2024-09-12 18:04:06,455 INFO L226 Difference]: Without dead ends: 1574 [2024-09-12 18:04:06,455 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 529 GetRequests, 511 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2024-09-12 18:04:06,456 INFO L434 NwaCegarLoop]: 17 mSDtfsCounter, 105 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:04:06,456 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 167 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:04:06,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1574 states. [2024-09-12 18:04:06,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1574 to 1574. [2024-09-12 18:04:06,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1568 states have (on average 1.1734693877551021) internal successors, (1840), 1569 states have internal predecessors, (1840), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:04:06,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 1844 transitions. [2024-09-12 18:04:06,520 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 1844 transitions. Word has length 259 [2024-09-12 18:04:06,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:04:06,520 INFO L474 AbstractCegarLoop]: Abstraction has 1574 states and 1844 transitions. [2024-09-12 18:04:06,520 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 6.157894736842105) internal successors, (117), 20 states have internal predecessors, (117), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:04:06,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:04:06,521 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 1844 transitions. [2024-09-12 18:04:06,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2024-09-12 18:04:06,524 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:04:06,524 INFO L216 NwaCegarLoop]: trace histogram [69, 50, 50, 50, 19, 19, 19, 19, 18, 1, 1, 1, 1, 1, 1] [2024-09-12 18:04:06,537 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-09-12 18:04:06,724 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-09-12 18:04:06,725 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-09-12 18:04:06,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:04:06,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1914590963, now seen corresponding path program 5 times [2024-09-12 18:04:06,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:04:06,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126436424] [2024-09-12 18:04:06,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:04:06,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:04:06,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:04:07,126 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:04:07,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:04:07,129 INFO L134 CoverageAnalysis]: Checked inductivity of 7826 backedges. 0 proven. 2826 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2024-09-12 18:04:07,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:04:07,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126436424] [2024-09-12 18:04:07,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126436424] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:04:07,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291699103] [2024-09-12 18:04:07,130 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 18:04:07,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:04:07,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:04:07,132 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:04:07,133 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-12 18:04:07,221 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 52 check-sat command(s) [2024-09-12 18:04:07,221 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:04:07,224 INFO L262 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-09-12 18:04:07,227 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:04:07,490 INFO L134 CoverageAnalysis]: Checked inductivity of 7826 backedges. 0 proven. 2826 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2024-09-12 18:04:07,490 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:04:08,119 INFO L134 CoverageAnalysis]: Checked inductivity of 7826 backedges. 0 proven. 2826 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2024-09-12 18:04:08,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [291699103] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:04:08,119 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:04:08,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 39 [2024-09-12 18:04:08,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362219476] [2024-09-12 18:04:08,120 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:04:08,120 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-09-12 18:04:08,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:04:08,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-09-12 18:04:08,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2024-09-12 18:04:08,122 INFO L87 Difference]: Start difference. First operand 1574 states and 1844 transitions. Second operand has 40 states, 39 states have (on average 6.076923076923077) internal successors, (237), 40 states have internal predecessors, (237), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:04:08,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:04:08,458 INFO L93 Difference]: Finished difference Result 5035 states and 6444 transitions. [2024-09-12 18:04:08,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-09-12 18:04:08,458 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 6.076923076923077) internal successors, (237), 40 states have internal predecessors, (237), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 319 [2024-09-12 18:04:08,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:04:08,474 INFO L225 Difference]: With dead ends: 5035 [2024-09-12 18:04:08,475 INFO L226 Difference]: Without dead ends: 5034 [2024-09-12 18:04:08,477 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 659 GetRequests, 621 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2024-09-12 18:04:08,477 INFO L434 NwaCegarLoop]: 17 mSDtfsCounter, 225 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:04:08,477 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 331 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:04:08,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5034 states. [2024-09-12 18:04:08,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5034 to 5034. [2024-09-12 18:04:08,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5034 states, 5028 states have (on average 1.1674622116149562) internal successors, (5870), 5029 states have internal predecessors, (5870), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:04:08,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5034 states to 5034 states and 5874 transitions. [2024-09-12 18:04:08,742 INFO L78 Accepts]: Start accepts. Automaton has 5034 states and 5874 transitions. Word has length 319 [2024-09-12 18:04:08,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:04:08,743 INFO L474 AbstractCegarLoop]: Abstraction has 5034 states and 5874 transitions. [2024-09-12 18:04:08,743 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 6.076923076923077) internal successors, (237), 40 states have internal predecessors, (237), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:04:08,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:04:08,743 INFO L276 IsEmpty]: Start isEmpty. Operand 5034 states and 5874 transitions. [2024-09-12 18:04:08,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2024-09-12 18:04:08,754 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:04:08,754 INFO L216 NwaCegarLoop]: trace histogram [89, 50, 50, 50, 39, 39, 39, 39, 38, 1, 1, 1, 1, 1, 1] [2024-09-12 18:04:08,769 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-09-12 18:04:08,955 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-09-12 18:04:08,955 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-09-12 18:04:08,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:04:08,956 INFO L85 PathProgramCache]: Analyzing trace with hash 340756881, now seen corresponding path program 6 times [2024-09-12 18:04:08,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:04:08,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118208037] [2024-09-12 18:04:08,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:04:08,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:04:08,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:04:10,243 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:04:10,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:04:10,247 INFO L134 CoverageAnalysis]: Checked inductivity of 13246 backedges. 0 proven. 8246 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2024-09-12 18:04:10,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:04:10,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118208037] [2024-09-12 18:04:10,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118208037] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:04:10,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704007581] [2024-09-12 18:04:10,248 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 18:04:10,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:04:10,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:04:10,250 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:04:10,251 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-12 18:04:10,397 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 52 check-sat command(s) [2024-09-12 18:04:10,397 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:04:10,401 INFO L262 TraceCheckSpWp]: Trace formula consists of 716 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-09-12 18:04:10,406 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:04:10,760 INFO L134 CoverageAnalysis]: Checked inductivity of 13246 backedges. 0 proven. 8246 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2024-09-12 18:04:10,761 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:04:12,506 INFO L134 CoverageAnalysis]: Checked inductivity of 13246 backedges. 0 proven. 8246 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2024-09-12 18:04:12,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1704007581] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:04:12,506 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:04:12,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40, 40] total 79 [2024-09-12 18:04:12,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910059877] [2024-09-12 18:04:12,507 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:04:12,508 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2024-09-12 18:04:12,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:04:12,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2024-09-12 18:04:12,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3160, Invalid=3160, Unknown=0, NotChecked=0, Total=6320 [2024-09-12 18:04:12,511 INFO L87 Difference]: Start difference. First operand 5034 states and 5874 transitions. Second operand has 80 states, 79 states have (on average 6.037974683544304) internal successors, (477), 80 states have internal predecessors, (477), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:04:13,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:04:13,772 INFO L93 Difference]: Finished difference Result 16775 states and 21510 transitions. [2024-09-12 18:04:13,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2024-09-12 18:04:13,773 INFO L78 Accepts]: Start accepts. Automaton has has 80 states, 79 states have (on average 6.037974683544304) internal successors, (477), 80 states have internal predecessors, (477), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 439 [2024-09-12 18:04:13,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:04:13,832 INFO L225 Difference]: With dead ends: 16775 [2024-09-12 18:04:13,832 INFO L226 Difference]: Without dead ends: 16774 [2024-09-12 18:04:13,839 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 919 GetRequests, 841 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=3160, Invalid=3160, Unknown=0, NotChecked=0, Total=6320 [2024-09-12 18:04:13,839 INFO L434 NwaCegarLoop]: 17 mSDtfsCounter, 824 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 824 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:04:13,839 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [824 Valid, 628 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:04:13,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16774 states. [2024-09-12 18:04:14,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16774 to 16746. [2024-09-12 18:04:14,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16746 states, 16740 states have (on average 1.1675029868578255) internal successors, (19544), 16741 states have internal predecessors, (19544), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:04:14,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16746 states to 16746 states and 19548 transitions. [2024-09-12 18:04:14,720 INFO L78 Accepts]: Start accepts. Automaton has 16746 states and 19548 transitions. Word has length 439 [2024-09-12 18:04:14,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:04:14,721 INFO L474 AbstractCegarLoop]: Abstraction has 16746 states and 19548 transitions. [2024-09-12 18:04:14,721 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 80 states, 79 states have (on average 6.037974683544304) internal successors, (477), 80 states have internal predecessors, (477), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:04:14,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:04:14,722 INFO L276 IsEmpty]: Start isEmpty. Operand 16746 states and 19548 transitions. [2024-09-12 18:04:14,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2024-09-12 18:04:14,736 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:04:14,736 INFO L216 NwaCegarLoop]: trace histogram [100, 50, 50, 50, 50, 50, 50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:04:14,754 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-09-12 18:04:14,940 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-12 18:04:14,941 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-09-12 18:04:14,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:04:14,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1814325886, now seen corresponding path program 5 times [2024-09-12 18:04:14,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:04:14,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373887666] [2024-09-12 18:04:14,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:04:14,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:04:14,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:04:17,530 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:04:17,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:04:17,540 INFO L134 CoverageAnalysis]: Checked inductivity of 17350 backedges. 0 proven. 12350 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2024-09-12 18:04:17,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:04:17,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373887666] [2024-09-12 18:04:17,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373887666] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:04:17,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1905859571] [2024-09-12 18:04:17,541 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 18:04:17,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:04:17,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:04:17,553 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:04:17,555 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-12 18:04:17,763 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 52 check-sat command(s) [2024-09-12 18:04:17,763 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:04:17,769 INFO L262 TraceCheckSpWp]: Trace formula consists of 838 conjuncts, 105 conjuncts are in the unsatisfiable core [2024-09-12 18:04:17,775 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:04:18,413 INFO L134 CoverageAnalysis]: Checked inductivity of 17350 backedges. 0 proven. 12350 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2024-09-12 18:04:18,414 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:04:19,005 INFO L134 CoverageAnalysis]: Checked inductivity of 17350 backedges. 0 proven. 12350 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2024-09-12 18:04:19,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1905859571] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:04:19,005 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:04:19,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 55, 55] total 57 [2024-09-12 18:04:19,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79537560] [2024-09-12 18:04:19,005 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:04:19,006 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2024-09-12 18:04:19,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:04:19,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2024-09-12 18:04:19,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=3079, Unknown=0, NotChecked=0, Total=3192 [2024-09-12 18:04:19,008 INFO L87 Difference]: Start difference. First operand 16746 states and 19548 transitions. Second operand has 57 states, 57 states have (on average 5.456140350877193) internal successors, (311), 55 states have internal predecessors, (311), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:04:21,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:04:21,478 INFO L93 Difference]: Finished difference Result 16751 states and 19552 transitions. [2024-09-12 18:04:21,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-09-12 18:04:21,479 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 57 states have (on average 5.456140350877193) internal successors, (311), 55 states have internal predecessors, (311), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 510 [2024-09-12 18:04:21,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:04:21,536 INFO L225 Difference]: With dead ends: 16751 [2024-09-12 18:04:21,536 INFO L226 Difference]: Without dead ends: 16746 [2024-09-12 18:04:21,547 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1077 GetRequests, 1019 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=119, Invalid=3187, Unknown=0, NotChecked=0, Total=3306 [2024-09-12 18:04:21,548 INFO L434 NwaCegarLoop]: 366 mSDtfsCounter, 156 mSDsluCounter, 19667 mSDsCounter, 0 mSdLazyCounter, 5828 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 20033 SdHoareTripleChecker+Invalid, 5828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:04:21,548 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 20033 Invalid, 5828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5828 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-09-12 18:04:21,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16746 states. [2024-09-12 18:04:22,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16746 to 16451. [2024-09-12 18:04:22,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16451 states, 16445 states have (on average 1.1674673152934023) internal successors, (19199), 16446 states have internal predecessors, (19199), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:04:22,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16451 states to 16451 states and 19203 transitions. [2024-09-12 18:04:22,864 INFO L78 Accepts]: Start accepts. Automaton has 16451 states and 19203 transitions. Word has length 510 [2024-09-12 18:04:22,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:04:22,865 INFO L474 AbstractCegarLoop]: Abstraction has 16451 states and 19203 transitions. [2024-09-12 18:04:22,866 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 5.456140350877193) internal successors, (311), 55 states have internal predecessors, (311), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:04:22,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:04:22,866 INFO L276 IsEmpty]: Start isEmpty. Operand 16451 states and 19203 transitions. [2024-09-12 18:04:22,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2024-09-12 18:04:22,885 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:04:22,886 INFO L216 NwaCegarLoop]: trace histogram [101, 51, 51, 51, 51, 51, 50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:04:22,906 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-09-12 18:04:23,089 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-12 18:04:23,090 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-09-12 18:04:23,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:04:23,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1642196015, now seen corresponding path program 6 times [2024-09-12 18:04:23,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:04:23,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685516758] [2024-09-12 18:04:23,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:04:23,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:04:23,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:04:25,226 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:04:25,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:04:25,233 INFO L134 CoverageAnalysis]: Checked inductivity of 17751 backedges. 12751 proven. 0 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2024-09-12 18:04:25,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:04:25,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685516758] [2024-09-12 18:04:25,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685516758] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:04:25,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:04:25,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [] total 53 [2024-09-12 18:04:25,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594944628] [2024-09-12 18:04:25,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:04:25,234 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2024-09-12 18:04:25,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:04:25,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2024-09-12 18:04:25,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2024-09-12 18:04:25,236 INFO L87 Difference]: Start difference. First operand 16451 states and 19203 transitions. Second operand has 53 states, 53 states have (on average 5.943396226415095) internal successors, (315), 53 states have internal predecessors, (315), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:04:25,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:04:25,862 INFO L93 Difference]: Finished difference Result 16746 states and 19547 transitions. [2024-09-12 18:04:25,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-09-12 18:04:25,863 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 5.943396226415095) internal successors, (315), 53 states have internal predecessors, (315), 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 516 [2024-09-12 18:04:25,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:04:25,880 INFO L225 Difference]: With dead ends: 16746 [2024-09-12 18:04:25,880 INFO L226 Difference]: Without dead ends: 0 [2024-09-12 18:04:25,912 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2024-09-12 18:04:25,913 INFO L434 NwaCegarLoop]: 109 mSDtfsCounter, 0 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 941 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:04:25,913 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 473 Invalid, 942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 941 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:04:25,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-12 18:04:25,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-12 18:04:25,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-12 18:04:25,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-12 18:04:25,923 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 516 [2024-09-12 18:04:25,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:04:25,924 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-12 18:04:25,924 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 5.943396226415095) internal successors, (315), 53 states have internal predecessors, (315), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:04:25,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:04:25,925 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-12 18:04:25,925 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-12 18:04:25,928 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2024-09-12 18:04:25,928 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2024-09-12 18:04:25,929 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 7 remaining) [2024-09-12 18:04:25,929 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2024-09-12 18:04:25,929 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2024-09-12 18:04:25,929 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2024-09-12 18:04:25,929 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2024-09-12 18:04:25,929 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-09-12 18:04:25,932 INFO L408 BasicCegarLoop]: Path program histogram: [6, 6, 1, 1, 1, 1, 1] [2024-09-12 18:04:25,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-09-12 18:04:29,820 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-12 18:04:29,841 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.09 06:04:29 BoogieIcfgContainer [2024-09-12 18:04:29,842 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-12 18:04:29,842 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-09-12 18:04:29,842 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-09-12 18:04:29,842 INFO L274 PluginConnector]: Witness Printer initialized [2024-09-12 18:04:29,843 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:03:49" (3/4) ... [2024-09-12 18:04:29,844 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-09-12 18:04:29,847 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2024-09-12 18:04:29,847 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2024-09-12 18:04:29,847 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-09-12 18:04:29,849 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-09-12 18:04:29,849 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-09-12 18:04:29,849 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-09-12 18:04:29,850 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-09-12 18:04:29,912 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.graphml [2024-09-12 18:04:29,913 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml [2024-09-12 18:04:29,913 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-09-12 18:04:29,913 INFO L158 Benchmark]: Toolchain (without parser) took 41346.93ms. Allocated memory was 77.6MB in the beginning and 2.9GB in the end (delta: 2.8GB). Free memory was 41.7MB in the beginning and 1.6GB in the end (delta: -1.6GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2024-09-12 18:04:29,913 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 77.6MB. Free memory is still 53.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 18:04:29,917 INFO L158 Benchmark]: CACSL2BoogieTranslator took 321.67ms. Allocated memory is still 77.6MB. Free memory was 41.5MB in the beginning and 54.1MB in the end (delta: -12.6MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2024-09-12 18:04:29,917 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.58ms. Allocated memory is still 77.6MB. Free memory was 54.1MB in the beginning and 53.2MB in the end (delta: 860.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 18:04:29,918 INFO L158 Benchmark]: Boogie Preprocessor took 39.60ms. Allocated memory is still 77.6MB. Free memory was 53.2MB in the beginning and 51.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-12 18:04:29,918 INFO L158 Benchmark]: RCFGBuilder took 371.61ms. Allocated memory is still 77.6MB. Free memory was 51.5MB in the beginning and 40.1MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-12 18:04:29,918 INFO L158 Benchmark]: TraceAbstraction took 40513.93ms. Allocated memory was 77.6MB in the beginning and 2.9GB in the end (delta: 2.8GB). Free memory was 39.2MB in the beginning and 1.6GB in the end (delta: -1.6GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. [2024-09-12 18:04:29,918 INFO L158 Benchmark]: Witness Printer took 70.58ms. Allocated memory is still 2.9GB. Free memory was 1.6GB in the beginning and 1.6GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-12 18:04:29,919 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 77.6MB. Free memory is still 53.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 321.67ms. Allocated memory is still 77.6MB. Free memory was 41.5MB in the beginning and 54.1MB in the end (delta: -12.6MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.58ms. Allocated memory is still 77.6MB. Free memory was 54.1MB in the beginning and 53.2MB in the end (delta: 860.5kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 39.60ms. Allocated memory is still 77.6MB. Free memory was 53.2MB in the beginning and 51.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 371.61ms. Allocated memory is still 77.6MB. Free memory was 51.5MB in the beginning and 40.1MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 40513.93ms. Allocated memory was 77.6MB in the beginning and 2.9GB in the end (delta: 2.8GB). Free memory was 39.2MB in the beginning and 1.6GB in the end (delta: -1.6GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. * Witness Printer took 70.58ms. Allocated memory is still 2.9GB. Free memory was 1.6GB in the beginning and 1.6GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 30 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 36.5s, OverallIterations: 17, TraceHistogramMax: 101, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.1s, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1978 SdHoareTripleChecker+Valid, 3.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1978 mSDsluCounter, 22452 SdHoareTripleChecker+Invalid, 2.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21736 mSDsCounter, 316 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8325 IncrementalHoareTripleChecker+Invalid, 8641 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 316 mSolverCounterUnsat, 716 mSDtfsCounter, 8325 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5281 GetRequests, 4687 SyntacticMatches, 30 SemanticMatches, 564 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2930 ImplicationChecksByTransitivity, 11.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16746occurred in iteration=15, InterpolantAutomatonStates: 536, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.7s AutomataMinimizationTime, 17 MinimizatonAttempts, 382 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 21.3s InterpolantComputationTime, 5453 NumberOfCodeBlocks, 5153 NumberOfCodeBlocksAsserted, 194 NumberOfCheckSat, 7845 ConstructedInterpolants, 0 QuantifiedInterpolants, 22005 SizeOfPredicates, 1 NumberOfNonLiveVariables, 3621 ConjunctsInSsa, 309 ConjunctsInUnsatCore, 42 InterpolantComputations, 5 PerfectInterpolantSequences, 98895/197230 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((((((((((((((x == 80) && (y == 80)) || ((x == 83) && (y == 83))) || ((67 == x) && (67 == y))) || ((x == 75) && (y == 75))) || ((x == 65) && (y == 65))) || ((66 == y) && (66 == x))) || ((94 == x) && (94 == y))) || ((81 == y) && (81 == x))) || ((57 == y) && (57 == x))) || ((51 == x) && (51 == y))) || ((y == 79) && (x == 79))) || ((y == 54) && (x == 54))) || (((1 <= x) && (y == 50)) && (x <= 50))) || ((98 == y) && (98 == x))) || ((x == 0) && (y == 50))) || ((x == 96) && (y == 96))) || ((92 == y) && (92 == x))) || ((y == 82) && (x == 82))) || ((77 == x) && (77 == y))) || ((88 == y) && (88 == x))) || ((x == 63) && (y == 63))) || ((59 == y) && (59 == x))) || ((x == 60) && (y == 60))) || ((y == 55) && (x == 55))) || ((y == 71) && (x == 71))) || ((x == 58) && (y == 58))) || ((y == 62) && (x == 62))) || ((64 == y) && (64 == x))) || ((76 == y) && (76 == x))) || ((y == 93) && (x == 93))) || ((x == 69) && (y == 69))) || ((97 == x) && (97 == y))) || ((x == 61) && (y == 61))) || ((87 == y) && (87 == x))) || ((53 == y) && (53 == x))) || ((x == 70) && (y == 70))) || ((72 == y) && (72 == x))) || ((91 == y) && (91 == x))) || ((x == 74) && (y == 74))) || ((x == 52) && (y == 52))) || ((y == 99) && (x == 99))) || ((x == 73) && (y == 73))) || ((56 == y) && (56 == x))) || ((x == 78) && (y == 78))) || ((100 <= x) && (y == 100))) || ((84 == y) && (84 == x))) || ((68 == y) && (68 == x))) || ((95 == x) && (95 == y))) || ((y == 86) && (x == 86))) || ((x == 90) && (y == 90))) || ((y == 85) && (x == 85))) || ((x == 89) && (y == 89))) - ProcedureContractResult [Line: 17]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: (1 <= \old(cond)) Ensures: (1 <= \old(cond)) RESULT: Ultimate proved your program to be correct! [2024-09-12 18:04:29,953 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE