./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-lit/jm2006.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/jm2006.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 2e98ae6b3b72bb87faac9dbfcafb29586eefa5010eced7af70cdba4815bccd7f --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 18:06:23,376 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 18:06:23,450 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 18:06:23,454 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 18:06:23,455 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 18:06:23,474 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 18:06:23,474 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 18:06:23,475 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 18:06:23,475 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 18:06:23,476 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 18:06:23,476 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 18:06:23,476 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 18:06:23,477 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 18:06:23,477 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 18:06:23,477 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 18:06:23,478 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 18:06:23,478 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 18:06:23,478 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 18:06:23,479 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 18:06:23,479 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 18:06:23,479 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 18:06:23,480 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 18:06:23,480 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 18:06:23,480 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 18:06:23,480 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 18:06:23,481 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 18:06:23,481 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 18:06:23,481 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 18:06:23,481 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 18:06:23,482 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 18:06:23,482 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 18:06:23,482 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 18:06:23,483 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:06:23,483 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 18:06:23,483 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 18:06:23,483 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 18:06:23,484 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 18:06:23,484 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 18:06:23,484 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 18:06:23,485 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 18:06:23,485 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 18:06:23,485 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 18:06:23,485 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e98ae6b3b72bb87faac9dbfcafb29586eefa5010eced7af70cdba4815bccd7f Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 18:06:23,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 18:06:23,769 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 18:06:23,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 18:06:23,773 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 18:06:23,773 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 18:06:23,775 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loop-lit/jm2006.i [2024-09-12 18:06:25,393 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 18:06:25,628 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 18:06:25,628 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/jm2006.i [2024-09-12 18:06:25,638 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/cfc6e2a6d/b2b00bad4b124ac1a089efa6cf5160b1/FLAGd431b2686 [2024-09-12 18:06:25,653 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/cfc6e2a6d/b2b00bad4b124ac1a089efa6cf5160b1 [2024-09-12 18:06:25,656 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 18:06:25,657 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 18:06:25,659 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 18:06:25,659 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 18:06:25,663 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 18:06:25,664 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:06:25" (1/1) ... [2024-09-12 18:06:25,665 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26a094e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:25, skipping insertion in model container [2024-09-12 18:06:25,665 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:06:25" (1/1) ... [2024-09-12 18:06:25,683 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 18:06:25,840 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/jm2006.i[895,908] [2024-09-12 18:06:25,860 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:06:25,875 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 18:06:25,891 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/jm2006.i[895,908] [2024-09-12 18:06:25,896 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:06:25,913 INFO L204 MainTranslator]: Completed translation [2024-09-12 18:06:25,913 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:25 WrapperNode [2024-09-12 18:06:25,913 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 18:06:25,915 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 18:06:25,915 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 18:06:25,915 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 18:06:25,922 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:25" (1/1) ... [2024-09-12 18:06:25,929 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:25" (1/1) ... [2024-09-12 18:06:25,935 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 18:06:25,936 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 18:06:25,937 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 18:06:25,937 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 18:06:25,938 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 18:06:25,947 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:25" (1/1) ... [2024-09-12 18:06:25,947 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:25" (1/1) ... [2024-09-12 18:06:25,948 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:25" (1/1) ... [2024-09-12 18:06:25,964 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 18:06:25,966 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:25" (1/1) ... [2024-09-12 18:06:25,966 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:25" (1/1) ... [2024-09-12 18:06:25,969 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:25" (1/1) ... [2024-09-12 18:06:25,972 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:25" (1/1) ... [2024-09-12 18:06:25,977 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:25" (1/1) ... [2024-09-12 18:06:25,978 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:25" (1/1) ... [2024-09-12 18:06:25,979 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 18:06:25,980 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 18:06:25,980 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 18:06:25,980 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 18:06:25,981 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:25" (1/1) ... [2024-09-12 18:06:25,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:06:25,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:06:26,015 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 18:06:26,018 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 18:06:26,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 18:06:26,066 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 18:06:26,066 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 18:06:26,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 18:06:26,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 18:06:26,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 18:06:26,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 18:06:26,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 18:06:26,068 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 18:06:26,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 18:06:26,132 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 18:06:26,134 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 18:06:26,315 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-09-12 18:06:26,315 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 18:06:26,341 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 18:06:26,344 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-12 18:06:26,345 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:06:26 BoogieIcfgContainer [2024-09-12 18:06:26,345 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 18:06:26,348 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 18:06:26,348 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 18:06:26,351 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 18:06:26,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 06:06:25" (1/3) ... [2024-09-12 18:06:26,352 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fcedd3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:06:26, skipping insertion in model container [2024-09-12 18:06:26,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:25" (2/3) ... [2024-09-12 18:06:26,352 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fcedd3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:06:26, skipping insertion in model container [2024-09-12 18:06:26,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:06:26" (3/3) ... [2024-09-12 18:06:26,354 INFO L112 eAbstractionObserver]: Analyzing ICFG jm2006.i [2024-09-12 18:06:26,395 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 18:06:26,396 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-09-12 18:06:26,457 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 18:06:26,464 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;@5701812f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 18:06:26,465 INFO L337 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-09-12 18:06:26,469 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 16 states have (on average 1.625) internal successors, (26), 22 states have internal predecessors, (26), 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 18:06:26,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-09-12 18:06:26,475 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:26,476 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:26,477 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:06:26,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:26,484 INFO L85 PathProgramCache]: Analyzing trace with hash -897417075, now seen corresponding path program 1 times [2024-09-12 18:06:26,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:26,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298823199] [2024-09-12 18:06:26,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:26,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:26,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:26,687 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:26,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:26,701 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 18:06:26,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:26,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298823199] [2024-09-12 18:06:26,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298823199] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:06:26,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:06:26,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:06:26,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691626176] [2024-09-12 18:06:26,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:06:26,710 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:06:26,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:26,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:06:26,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:06:26,742 INFO L87 Difference]: Start difference. First operand has 28 states, 16 states have (on average 1.625) internal successors, (26), 22 states have internal predecessors, (26), 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 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:26,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:26,790 INFO L93 Difference]: Finished difference Result 45 states and 54 transitions. [2024-09-12 18:06:26,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:06:26,796 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 8 [2024-09-12 18:06:26,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:26,803 INFO L225 Difference]: With dead ends: 45 [2024-09-12 18:06:26,804 INFO L226 Difference]: Without dead ends: 24 [2024-09-12 18:06:26,807 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:06:26,812 INFO L434 NwaCegarLoop]: 24 mSDtfsCounter, 1 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:26,815 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 70 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:06:26,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-09-12 18:06:26,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2024-09-12 18:06:26,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 18 states have internal predecessors, (20), 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 18:06:26,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2024-09-12 18:06:26,846 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 8 [2024-09-12 18:06:26,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:26,847 INFO L474 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2024-09-12 18:06:26,847 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:26,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:26,848 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2024-09-12 18:06:26,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-09-12 18:06:26,849 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:26,849 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:26,849 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 18:06:26,849 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:06:26,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:26,850 INFO L85 PathProgramCache]: Analyzing trace with hash -2050125497, now seen corresponding path program 1 times [2024-09-12 18:06:26,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:26,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840863819] [2024-09-12 18:06:26,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:26,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:26,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:26,938 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:26,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:26,944 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 18:06:26,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:26,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840863819] [2024-09-12 18:06:26,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840863819] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:06:26,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:06:26,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:06:26,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856545426] [2024-09-12 18:06:26,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:06:26,947 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:06:26,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:26,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:06:26,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:06:26,948 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:26,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:26,997 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2024-09-12 18:06:26,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:06:26,998 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2024-09-12 18:06:26,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:26,999 INFO L225 Difference]: With dead ends: 23 [2024-09-12 18:06:26,999 INFO L226 Difference]: Without dead ends: 22 [2024-09-12 18:06:27,000 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:06:27,001 INFO L434 NwaCegarLoop]: 12 mSDtfsCounter, 14 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:27,001 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 39 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:06:27,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-09-12 18:06:27,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2024-09-12 18:06:27,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 17 states have internal predecessors, (19), 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 18:06:27,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2024-09-12 18:06:27,008 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 9 [2024-09-12 18:06:27,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:27,009 INFO L474 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2024-09-12 18:06:27,009 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:27,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:27,010 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2024-09-12 18:06:27,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-09-12 18:06:27,010 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:27,010 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:27,011 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 18:06:27,011 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:06:27,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:27,012 INFO L85 PathProgramCache]: Analyzing trace with hash 870619087, now seen corresponding path program 1 times [2024-09-12 18:06:27,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:27,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588385379] [2024-09-12 18:06:27,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:27,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:27,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:27,064 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:27,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:27,076 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 18:06:27,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:27,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588385379] [2024-09-12 18:06:27,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588385379] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:06:27,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:06:27,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:06:27,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673307506] [2024-09-12 18:06:27,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:06:27,081 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:06:27,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:27,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:06:27,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:06:27,082 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:27,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:27,108 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2024-09-12 18:06:27,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:06:27,108 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2024-09-12 18:06:27,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:27,111 INFO L225 Difference]: With dead ends: 28 [2024-09-12 18:06:27,111 INFO L226 Difference]: Without dead ends: 27 [2024-09-12 18:06:27,111 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:06:27,112 INFO L434 NwaCegarLoop]: 15 mSDtfsCounter, 3 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:27,113 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 43 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:06:27,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-09-12 18:06:27,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2024-09-12 18:06:27,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 16 states have (on average 1.3125) internal successors, (21), 19 states have internal predecessors, (21), 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 18:06:27,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2024-09-12 18:06:27,120 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 10 [2024-09-12 18:06:27,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:27,121 INFO L474 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2024-09-12 18:06:27,121 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:27,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:27,122 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2024-09-12 18:06:27,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-09-12 18:06:27,122 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:27,123 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:27,123 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-12 18:06:27,123 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:06:27,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:27,124 INFO L85 PathProgramCache]: Analyzing trace with hash -898886129, now seen corresponding path program 1 times [2024-09-12 18:06:27,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:27,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609517817] [2024-09-12 18:06:27,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:27,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:27,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:27,291 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:27,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:27,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:27,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:27,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609517817] [2024-09-12 18:06:27,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609517817] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:06:27,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:06:27,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-09-12 18:06:27,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024316804] [2024-09-12 18:06:27,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:06:27,299 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:06:27,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:27,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:06:27,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:06:27,300 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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 18:06:27,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:27,343 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2024-09-12 18:06:27,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:06:27,344 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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 12 [2024-09-12 18:06:27,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:27,345 INFO L225 Difference]: With dead ends: 30 [2024-09-12 18:06:27,345 INFO L226 Difference]: Without dead ends: 24 [2024-09-12 18:06:27,346 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:06:27,347 INFO L434 NwaCegarLoop]: 15 mSDtfsCounter, 1 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:27,347 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 66 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:06:27,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-09-12 18:06:27,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2024-09-12 18:06:27,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 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 18:06:27,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2024-09-12 18:06:27,354 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 12 [2024-09-12 18:06:27,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:27,354 INFO L474 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2024-09-12 18:06:27,354 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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 18:06:27,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:27,355 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2024-09-12 18:06:27,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-09-12 18:06:27,355 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:27,356 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:27,356 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-12 18:06:27,356 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:06:27,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:27,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1219387977, now seen corresponding path program 1 times [2024-09-12 18:06:27,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:27,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957472139] [2024-09-12 18:06:27,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:27,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:27,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:27,467 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:27,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:27,477 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 18:06:27,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:27,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957472139] [2024-09-12 18:06:27,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957472139] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:06:27,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:06:27,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:06:27,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442551095] [2024-09-12 18:06:27,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:06:27,479 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:06:27,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:27,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:06:27,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:06:27,480 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:27,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:27,510 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2024-09-12 18:06:27,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:06:27,511 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-09-12 18:06:27,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:27,512 INFO L225 Difference]: With dead ends: 24 [2024-09-12 18:06:27,512 INFO L226 Difference]: Without dead ends: 23 [2024-09-12 18:06:27,512 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:06:27,513 INFO L434 NwaCegarLoop]: 12 mSDtfsCounter, 12 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:27,514 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 39 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:06:27,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-09-12 18:06:27,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-09-12 18:06:27,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 16 states have (on average 1.1875) internal successors, (19), 18 states have internal predecessors, (19), 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 18:06:27,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2024-09-12 18:06:27,520 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 11 [2024-09-12 18:06:27,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:27,521 INFO L474 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2024-09-12 18:06:27,521 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:27,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:27,521 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2024-09-12 18:06:27,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-09-12 18:06:27,522 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:27,522 INFO L216 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:27,522 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-09-12 18:06:27,522 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:06:27,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:27,523 INFO L85 PathProgramCache]: Analyzing trace with hash -694224373, now seen corresponding path program 1 times [2024-09-12 18:06:27,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:27,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151841370] [2024-09-12 18:06:27,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:27,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:27,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:27,596 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:27,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:27,600 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:27,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:27,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151841370] [2024-09-12 18:06:27,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151841370] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:06:27,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1072561925] [2024-09-12 18:06:27,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:27,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:27,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:06:27,610 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 18:06:27,629 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 18:06:27,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:27,674 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:06:27,678 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:06:27,719 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:27,719 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:06:27,776 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:27,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1072561925] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:06:27,777 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:06:27,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-09-12 18:06:27,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254765007] [2024-09-12 18:06:27,778 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:06:27,778 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:06:27,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:27,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:06:27,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:06:27,779 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 10 states have internal predecessors, (18), 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 18:06:27,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:27,821 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2024-09-12 18:06:27,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:06:27,822 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 10 states have internal predecessors, (18), 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 13 [2024-09-12 18:06:27,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:27,824 INFO L225 Difference]: With dead ends: 39 [2024-09-12 18:06:27,824 INFO L226 Difference]: Without dead ends: 38 [2024-09-12 18:06:27,824 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:06:27,825 INFO L434 NwaCegarLoop]: 14 mSDtfsCounter, 6 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:27,826 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 94 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:06:27,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-09-12 18:06:27,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2024-09-12 18:06:27,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 31 states have internal predecessors, (37), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:27,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2024-09-12 18:06:27,834 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 13 [2024-09-12 18:06:27,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:27,835 INFO L474 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2024-09-12 18:06:27,835 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 10 states have internal predecessors, (18), 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 18:06:27,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:27,836 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2024-09-12 18:06:27,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-09-12 18:06:27,836 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:27,836 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:27,854 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-09-12 18:06:28,037 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-12 18:06:28,038 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:06:28,038 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:28,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1429689907, now seen corresponding path program 1 times [2024-09-12 18:06:28,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:28,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615037504] [2024-09-12 18:06:28,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:28,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:28,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:28,113 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:28,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:28,119 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:28,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:28,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615037504] [2024-09-12 18:06:28,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615037504] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:06:28,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151230271] [2024-09-12 18:06:28,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:28,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:28,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:06:28,123 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 18:06:28,126 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 18:06:28,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:28,168 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:06:28,169 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:06:28,191 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:28,192 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:06:28,244 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:28,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [151230271] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:06:28,245 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:06:28,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-09-12 18:06:28,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143523823] [2024-09-12 18:06:28,246 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:06:28,246 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:06:28,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:28,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:06:28,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:06:28,247 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 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 18:06:28,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:28,285 INFO L93 Difference]: Finished difference Result 45 states and 50 transitions. [2024-09-12 18:06:28,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:06:28,285 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 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 15 [2024-09-12 18:06:28,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:28,286 INFO L225 Difference]: With dead ends: 45 [2024-09-12 18:06:28,286 INFO L226 Difference]: Without dead ends: 44 [2024-09-12 18:06:28,287 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:06:28,288 INFO L434 NwaCegarLoop]: 15 mSDtfsCounter, 8 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:28,288 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 99 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:06:28,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-09-12 18:06:28,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 38. [2024-09-12 18:06:28,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 33 states have internal predecessors, (37), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:28,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2024-09-12 18:06:28,298 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 15 [2024-09-12 18:06:28,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:28,299 INFO L474 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2024-09-12 18:06:28,299 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 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 18:06:28,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:28,299 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2024-09-12 18:06:28,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-09-12 18:06:28,300 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:28,300 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:28,317 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-09-12 18:06:28,500 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-09-12 18:06:28,501 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:06:28,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:28,501 INFO L85 PathProgramCache]: Analyzing trace with hash 412328077, now seen corresponding path program 1 times [2024-09-12 18:06:28,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:28,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431772104] [2024-09-12 18:06:28,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:28,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:28,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:28,682 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:28,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:28,686 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 18:06:28,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:28,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431772104] [2024-09-12 18:06:28,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431772104] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:06:28,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36688256] [2024-09-12 18:06:28,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:28,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:28,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:06:28,689 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 18:06:28,690 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 18:06:28,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:28,727 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 18:06:28,728 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:06:28,853 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 18:06:28,853 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:06:29,009 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 18:06:29,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [36688256] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:06:29,010 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:06:29,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-09-12 18:06:29,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570586454] [2024-09-12 18:06:29,011 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:06:29,011 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-09-12 18:06:29,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:29,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-09-12 18:06:29,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2024-09-12 18:06:29,013 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand has 22 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 20 states have internal predecessors, (31), 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 18:06:29,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:29,163 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2024-09-12 18:06:29,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:06:29,163 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 20 states have internal predecessors, (31), 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 17 [2024-09-12 18:06:29,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:29,164 INFO L225 Difference]: With dead ends: 39 [2024-09-12 18:06:29,164 INFO L226 Difference]: Without dead ends: 32 [2024-09-12 18:06:29,164 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=470, Unknown=0, NotChecked=0, Total=552 [2024-09-12 18:06:29,167 INFO L434 NwaCegarLoop]: 6 mSDtfsCounter, 1 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:29,169 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 60 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:06:29,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-09-12 18:06:29,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2024-09-12 18:06:29,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 27 states have (on average 1.0740740740740742) internal successors, (29), 28 states have internal predecessors, (29), 2 states have call successors, (2), 2 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 18:06:29,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2024-09-12 18:06:29,180 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 17 [2024-09-12 18:06:29,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:29,180 INFO L474 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2024-09-12 18:06:29,192 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 20 states have internal predecessors, (31), 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 18:06:29,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:29,193 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2024-09-12 18:06:29,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-09-12 18:06:29,194 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:29,194 INFO L216 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:29,212 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 18:06:29,398 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-09-12 18:06:29,399 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:06:29,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:29,400 INFO L85 PathProgramCache]: Analyzing trace with hash -140538355, now seen corresponding path program 2 times [2024-09-12 18:06:29,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:29,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151150245] [2024-09-12 18:06:29,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:29,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:29,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:29,526 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:29,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:29,529 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:29,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:29,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151150245] [2024-09-12 18:06:29,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151150245] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:06:29,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [302986721] [2024-09-12 18:06:29,530 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:06:29,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:29,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:06:29,532 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 18:06:29,534 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 18:06:29,578 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:06:29,578 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:06:29,579 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 18:06:29,580 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:06:29,612 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:29,613 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:06:29,766 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:29,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [302986721] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:06:29,767 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:06:29,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2024-09-12 18:06:29,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240012771] [2024-09-12 18:06:29,767 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:06:29,768 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-09-12 18:06:29,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:29,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-09-12 18:06:29,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-09-12 18:06:29,769 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand has 22 states, 21 states have (on average 2.2857142857142856) internal successors, (48), 22 states have internal predecessors, (48), 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 18:06:29,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:29,832 INFO L93 Difference]: Finished difference Result 66 states and 71 transitions. [2024-09-12 18:06:29,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-12 18:06:29,833 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.2857142857142856) internal successors, (48), 22 states have internal predecessors, (48), 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 28 [2024-09-12 18:06:29,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:29,834 INFO L225 Difference]: With dead ends: 66 [2024-09-12 18:06:29,834 INFO L226 Difference]: Without dead ends: 65 [2024-09-12 18:06:29,834 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-09-12 18:06:29,835 INFO L434 NwaCegarLoop]: 9 mSDtfsCounter, 18 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:29,835 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 64 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:06:29,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-09-12 18:06:29,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 60. [2024-09-12 18:06:29,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 55 states have (on average 1.1272727272727272) internal successors, (62), 56 states have internal predecessors, (62), 2 states have call successors, (2), 2 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 18:06:29,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 65 transitions. [2024-09-12 18:06:29,852 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 65 transitions. Word has length 28 [2024-09-12 18:06:29,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:29,852 INFO L474 AbstractCegarLoop]: Abstraction has 60 states and 65 transitions. [2024-09-12 18:06:29,853 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.2857142857142856) internal successors, (48), 22 states have internal predecessors, (48), 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 18:06:29,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:29,853 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 65 transitions. [2024-09-12 18:06:29,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-09-12 18:06:29,854 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:29,854 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:29,872 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 18:06:30,058 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:30,059 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:06:30,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:30,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1913371313, now seen corresponding path program 2 times [2024-09-12 18:06:30,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:30,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489348574] [2024-09-12 18:06:30,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:30,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:30,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:30,200 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:30,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:30,203 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:30,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:30,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489348574] [2024-09-12 18:06:30,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489348574] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:06:30,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833388847] [2024-09-12 18:06:30,204 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:06:30,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:30,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:06:30,207 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 18:06:30,212 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 18:06:30,253 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:06:30,253 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:06:30,254 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 18:06:30,256 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:06:30,293 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:30,293 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:06:30,448 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:30,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [833388847] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:06:30,448 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:06:30,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2024-09-12 18:06:30,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353189011] [2024-09-12 18:06:30,449 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:06:30,449 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-09-12 18:06:30,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:30,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-09-12 18:06:30,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-09-12 18:06:30,451 INFO L87 Difference]: Start difference. First operand 60 states and 65 transitions. Second operand has 22 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 22 states have internal predecessors, (52), 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 18:06:30,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:30,516 INFO L93 Difference]: Finished difference Result 63 states and 68 transitions. [2024-09-12 18:06:30,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-12 18:06:30,516 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 22 states have internal predecessors, (52), 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 30 [2024-09-12 18:06:30,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:30,517 INFO L225 Difference]: With dead ends: 63 [2024-09-12 18:06:30,517 INFO L226 Difference]: Without dead ends: 62 [2024-09-12 18:06:30,518 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-09-12 18:06:30,518 INFO L434 NwaCegarLoop]: 9 mSDtfsCounter, 2 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:30,519 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 99 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:06:30,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-09-12 18:06:30,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2024-09-12 18:06:30,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 57 states have (on average 1.0350877192982457) internal successors, (59), 58 states have internal predecessors, (59), 2 states have call successors, (2), 2 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 18:06:30,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 62 transitions. [2024-09-12 18:06:30,534 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 62 transitions. Word has length 30 [2024-09-12 18:06:30,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:30,535 INFO L474 AbstractCegarLoop]: Abstraction has 62 states and 62 transitions. [2024-09-12 18:06:30,535 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 22 states have internal predecessors, (52), 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 18:06:30,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:30,535 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 62 transitions. [2024-09-12 18:06:30,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-09-12 18:06:30,536 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:30,536 INFO L216 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:30,552 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-09-12 18:06:30,740 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-09-12 18:06:30,741 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:06:30,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:30,742 INFO L85 PathProgramCache]: Analyzing trace with hash -325100979, now seen corresponding path program 3 times [2024-09-12 18:06:30,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:30,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122111122] [2024-09-12 18:06:30,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:30,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:30,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:31,125 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:31,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:31,130 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:31,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:31,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122111122] [2024-09-12 18:06:31,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122111122] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:06:31,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1172479924] [2024-09-12 18:06:31,130 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:06:31,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:31,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:06:31,132 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 18:06:31,134 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 18:06:31,185 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-09-12 18:06:31,185 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:06:31,187 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-12 18:06:31,189 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:06:31,257 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:31,257 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:06:31,809 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:31,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1172479924] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:06:31,810 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:06:31,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 45 [2024-09-12 18:06:31,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6655623] [2024-09-12 18:06:31,810 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:06:31,811 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-09-12 18:06:31,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:31,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-09-12 18:06:31,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2024-09-12 18:06:31,813 INFO L87 Difference]: Start difference. First operand 62 states and 62 transitions. Second operand has 46 states, 45 states have (on average 2.4) internal successors, (108), 46 states have internal predecessors, (108), 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 18:06:31,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:31,942 INFO L93 Difference]: Finished difference Result 132 states and 143 transitions. [2024-09-12 18:06:31,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-09-12 18:06:31,943 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 2.4) internal successors, (108), 46 states have internal predecessors, (108), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 58 [2024-09-12 18:06:31,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:31,944 INFO L225 Difference]: With dead ends: 132 [2024-09-12 18:06:31,944 INFO L226 Difference]: Without dead ends: 131 [2024-09-12 18:06:31,945 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 541 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2024-09-12 18:06:31,946 INFO L434 NwaCegarLoop]: 9 mSDtfsCounter, 26 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:31,946 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 127 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:06:31,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-09-12 18:06:31,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 120. [2024-09-12 18:06:31,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 115 states have (on average 1.1130434782608696) internal successors, (128), 116 states have internal predecessors, (128), 2 states have call successors, (2), 2 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 18:06:31,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 131 transitions. [2024-09-12 18:06:31,974 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 131 transitions. Word has length 58 [2024-09-12 18:06:31,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:31,974 INFO L474 AbstractCegarLoop]: Abstraction has 120 states and 131 transitions. [2024-09-12 18:06:31,974 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 2.4) internal successors, (108), 46 states have internal predecessors, (108), 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 18:06:31,975 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:31,975 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 131 transitions. [2024-09-12 18:06:31,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-09-12 18:06:31,976 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:31,976 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:31,995 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 18:06:32,177 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-09-12 18:06:32,178 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:06:32,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:32,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1110573455, now seen corresponding path program 3 times [2024-09-12 18:06:32,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:32,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70502672] [2024-09-12 18:06:32,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:32,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:32,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:32,611 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:32,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:32,615 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:32,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:32,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70502672] [2024-09-12 18:06:32,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70502672] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:06:32,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725295243] [2024-09-12 18:06:32,616 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:06:32,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:32,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:06:32,618 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 18:06:32,619 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 18:06:32,669 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-09-12 18:06:32,670 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:06:32,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-12 18:06:32,673 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:06:32,765 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:32,765 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:06:33,314 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:33,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1725295243] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:06:33,315 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:06:33,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 45 [2024-09-12 18:06:33,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107978127] [2024-09-12 18:06:33,315 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:06:33,316 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-09-12 18:06:33,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:33,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-09-12 18:06:33,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2024-09-12 18:06:33,318 INFO L87 Difference]: Start difference. First operand 120 states and 131 transitions. Second operand has 46 states, 45 states have (on average 2.488888888888889) internal successors, (112), 46 states have internal predecessors, (112), 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 18:06:33,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:33,425 INFO L93 Difference]: Finished difference Result 123 states and 134 transitions. [2024-09-12 18:06:33,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-09-12 18:06:33,426 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 2.488888888888889) internal successors, (112), 46 states have internal predecessors, (112), 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 60 [2024-09-12 18:06:33,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:33,427 INFO L225 Difference]: With dead ends: 123 [2024-09-12 18:06:33,427 INFO L226 Difference]: Without dead ends: 122 [2024-09-12 18:06:33,429 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 541 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2024-09-12 18:06:33,429 INFO L434 NwaCegarLoop]: 9 mSDtfsCounter, 2 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:33,429 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 103 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:06:33,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-09-12 18:06:33,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2024-09-12 18:06:33,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 117 states have (on average 1.017094017094017) internal successors, (119), 118 states have internal predecessors, (119), 2 states have call successors, (2), 2 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 18:06:33,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 122 transitions. [2024-09-12 18:06:33,459 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 122 transitions. Word has length 60 [2024-09-12 18:06:33,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:33,459 INFO L474 AbstractCegarLoop]: Abstraction has 122 states and 122 transitions. [2024-09-12 18:06:33,460 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 2.488888888888889) internal successors, (112), 46 states have internal predecessors, (112), 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 18:06:33,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:33,460 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 122 transitions. [2024-09-12 18:06:33,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-09-12 18:06:33,462 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:33,462 INFO L216 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:33,480 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 18:06:33,666 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:33,667 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:06:33,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:33,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1089610445, now seen corresponding path program 4 times [2024-09-12 18:06:33,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:33,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593153399] [2024-09-12 18:06:33,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:33,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:33,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:35,144 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:35,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:35,156 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:35,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:35,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593153399] [2024-09-12 18:06:35,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593153399] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:06:35,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118504205] [2024-09-12 18:06:35,156 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 18:06:35,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:35,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:06:35,159 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 18:06:35,161 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 18:06:35,251 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 18:06:35,251 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:06:35,253 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-09-12 18:06:35,257 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:06:35,415 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:35,415 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:06:37,393 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:37,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [118504205] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:06:37,393 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:06:37,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 93 [2024-09-12 18:06:37,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912992222] [2024-09-12 18:06:37,394 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:06:37,395 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2024-09-12 18:06:37,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:37,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2024-09-12 18:06:37,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2255, Invalid=6487, Unknown=0, NotChecked=0, Total=8742 [2024-09-12 18:06:37,400 INFO L87 Difference]: Start difference. First operand 122 states and 122 transitions. Second operand has 94 states, 93 states have (on average 2.4516129032258065) internal successors, (228), 94 states have internal predecessors, (228), 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 18:06:37,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:37,689 INFO L93 Difference]: Finished difference Result 264 states and 287 transitions. [2024-09-12 18:06:37,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2024-09-12 18:06:37,689 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 2.4516129032258065) internal successors, (228), 94 states have internal predecessors, (228), 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 118 [2024-09-12 18:06:37,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:37,691 INFO L225 Difference]: With dead ends: 264 [2024-09-12 18:06:37,691 INFO L226 Difference]: Without dead ends: 263 [2024-09-12 18:06:37,693 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2509 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=2255, Invalid=6487, Unknown=0, NotChecked=0, Total=8742 [2024-09-12 18:06:37,694 INFO L434 NwaCegarLoop]: 9 mSDtfsCounter, 78 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:37,694 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 186 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:06:37,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2024-09-12 18:06:37,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 240. [2024-09-12 18:06:37,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 235 states have (on average 1.1063829787234043) internal successors, (260), 236 states have internal predecessors, (260), 2 states have call successors, (2), 2 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 18:06:37,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 263 transitions. [2024-09-12 18:06:37,729 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 263 transitions. Word has length 118 [2024-09-12 18:06:37,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:37,730 INFO L474 AbstractCegarLoop]: Abstraction has 240 states and 263 transitions. [2024-09-12 18:06:37,730 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 2.4516129032258065) internal successors, (228), 94 states have internal predecessors, (228), 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 18:06:37,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:37,730 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 263 transitions. [2024-09-12 18:06:37,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-09-12 18:06:37,732 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:37,732 INFO L216 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 22, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:37,748 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 18:06:37,935 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:37,936 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:06:37,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:37,937 INFO L85 PathProgramCache]: Analyzing trace with hash -856380913, now seen corresponding path program 4 times [2024-09-12 18:06:37,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:37,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924605536] [2024-09-12 18:06:37,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:37,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:37,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:39,321 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:39,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:39,325 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:39,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:39,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924605536] [2024-09-12 18:06:39,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924605536] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:06:39,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1999659168] [2024-09-12 18:06:39,326 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 18:06:39,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:39,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:06:39,328 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 18:06:39,330 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 18:06:39,397 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 18:06:39,397 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:06:39,400 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-09-12 18:06:39,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:06:39,536 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:39,537 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:06:41,453 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:41,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1999659168] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:06:41,453 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:06:41,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 93 [2024-09-12 18:06:41,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121988596] [2024-09-12 18:06:41,454 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:06:41,455 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2024-09-12 18:06:41,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:41,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2024-09-12 18:06:41,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2255, Invalid=6487, Unknown=0, NotChecked=0, Total=8742 [2024-09-12 18:06:41,459 INFO L87 Difference]: Start difference. First operand 240 states and 263 transitions. Second operand has 94 states, 93 states have (on average 2.4946236559139785) internal successors, (232), 94 states have internal predecessors, (232), 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 18:06:41,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:41,727 INFO L93 Difference]: Finished difference Result 243 states and 266 transitions. [2024-09-12 18:06:41,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2024-09-12 18:06:41,727 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 2.4946236559139785) internal successors, (232), 94 states have internal predecessors, (232), 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 120 [2024-09-12 18:06:41,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:41,729 INFO L225 Difference]: With dead ends: 243 [2024-09-12 18:06:41,729 INFO L226 Difference]: Without dead ends: 242 [2024-09-12 18:06:41,731 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2509 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=2255, Invalid=6487, Unknown=0, NotChecked=0, Total=8742 [2024-09-12 18:06:41,732 INFO L434 NwaCegarLoop]: 9 mSDtfsCounter, 2 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:41,732 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 171 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:06:41,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2024-09-12 18:06:41,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2024-09-12 18:06:41,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 237 states have (on average 1.0084388185654007) internal successors, (239), 238 states have internal predecessors, (239), 2 states have call successors, (2), 2 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 18:06:41,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 242 transitions. [2024-09-12 18:06:41,774 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 242 transitions. Word has length 120 [2024-09-12 18:06:41,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:41,774 INFO L474 AbstractCegarLoop]: Abstraction has 242 states and 242 transitions. [2024-09-12 18:06:41,775 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 2.4946236559139785) internal successors, (232), 94 states have internal predecessors, (232), 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 18:06:41,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:41,775 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 242 transitions. [2024-09-12 18:06:41,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2024-09-12 18:06:41,777 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:41,778 INFO L216 NwaCegarLoop]: trace histogram [47, 46, 46, 46, 46, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:41,795 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 18:06:41,981 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-09-12 18:06:41,982 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:06:41,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:41,983 INFO L85 PathProgramCache]: Analyzing trace with hash 122975181, now seen corresponding path program 5 times [2024-09-12 18:06:41,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:41,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481555541] [2024-09-12 18:06:41,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:41,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:42,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:46,654 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:46,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:46,660 INFO L134 CoverageAnalysis]: Checked inductivity of 5267 backedges. 0 proven. 5267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:46,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:46,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481555541] [2024-09-12 18:06:46,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481555541] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:06:46,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570253746] [2024-09-12 18:06:46,661 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 18:06:46,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:46,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:06:46,663 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 18:06:46,665 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 18:06:46,904 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2024-09-12 18:06:46,905 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:06:46,909 INFO L262 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 96 conjuncts are in the unsatisfiable core [2024-09-12 18:06:46,914 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:06:47,188 INFO L134 CoverageAnalysis]: Checked inductivity of 5267 backedges. 0 proven. 5267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:47,188 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:06:54,272 INFO L134 CoverageAnalysis]: Checked inductivity of 5267 backedges. 0 proven. 5267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:54,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570253746] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:06:54,273 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:06:54,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 189 [2024-09-12 18:06:54,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533741608] [2024-09-12 18:06:54,273 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:06:54,274 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 190 states [2024-09-12 18:06:54,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:54,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2024-09-12 18:06:54,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2024-09-12 18:06:54,283 INFO L87 Difference]: Start difference. First operand 242 states and 242 transitions. Second operand has 190 states, 189 states have (on average 2.4761904761904763) internal successors, (468), 190 states have internal predecessors, (468), 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 18:06:55,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:55,025 INFO L93 Difference]: Finished difference Result 528 states and 575 transitions. [2024-09-12 18:06:55,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2024-09-12 18:06:55,026 INFO L78 Accepts]: Start accepts. Automaton has has 190 states, 189 states have (on average 2.4761904761904763) internal successors, (468), 190 states have internal predecessors, (468), 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 238 [2024-09-12 18:06:55,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:55,029 INFO L225 Difference]: With dead ends: 528 [2024-09-12 18:06:55,035 INFO L226 Difference]: Without dead ends: 527 [2024-09-12 18:06:55,044 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 572 GetRequests, 384 SyntacticMatches, 0 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10765 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2024-09-12 18:06:55,045 INFO L434 NwaCegarLoop]: 9 mSDtfsCounter, 184 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:55,045 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 302 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:06:55,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2024-09-12 18:06:55,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 480. [2024-09-12 18:06:55,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 475 states have (on average 1.1031578947368421) internal successors, (524), 476 states have internal predecessors, (524), 2 states have call successors, (2), 2 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 18:06:55,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 527 transitions. [2024-09-12 18:06:55,169 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 527 transitions. Word has length 238 [2024-09-12 18:06:55,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:55,170 INFO L474 AbstractCegarLoop]: Abstraction has 480 states and 527 transitions. [2024-09-12 18:06:55,171 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 190 states, 189 states have (on average 2.4761904761904763) internal successors, (468), 190 states have internal predecessors, (468), 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 18:06:55,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:55,171 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 527 transitions. [2024-09-12 18:06:55,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-09-12 18:06:55,173 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:55,174 INFO L216 NwaCegarLoop]: trace histogram [47, 47, 47, 46, 46, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:55,192 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 18:06:55,377 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-12 18:06:55,378 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:06:55,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:55,380 INFO L85 PathProgramCache]: Analyzing trace with hash -2079933681, now seen corresponding path program 5 times [2024-09-12 18:06:55,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:55,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264807223] [2024-09-12 18:06:55,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:55,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:55,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:07:00,748 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:07:00,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:07:00,753 INFO L134 CoverageAnalysis]: Checked inductivity of 5359 backedges. 0 proven. 5359 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:07:00,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:07:00,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264807223] [2024-09-12 18:07:00,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264807223] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:07:00,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [795891618] [2024-09-12 18:07:00,753 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 18:07:00,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:07:00,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:07:00,755 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 18:07:00,757 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 18:07:00,980 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2024-09-12 18:07:00,981 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:07:00,985 INFO L262 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 96 conjuncts are in the unsatisfiable core [2024-09-12 18:07:00,990 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:07:01,253 INFO L134 CoverageAnalysis]: Checked inductivity of 5359 backedges. 0 proven. 5359 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:07:01,254 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:07:08,720 INFO L134 CoverageAnalysis]: Checked inductivity of 5359 backedges. 0 proven. 5359 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:07:08,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [795891618] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:07:08,721 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:07:08,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 189 [2024-09-12 18:07:08,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760372157] [2024-09-12 18:07:08,722 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:07:08,722 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 190 states [2024-09-12 18:07:08,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:07:08,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2024-09-12 18:07:08,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2024-09-12 18:07:08,729 INFO L87 Difference]: Start difference. First operand 480 states and 527 transitions. Second operand has 190 states, 189 states have (on average 2.497354497354497) internal successors, (472), 190 states have internal predecessors, (472), 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 18:07:09,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:07:09,363 INFO L93 Difference]: Finished difference Result 483 states and 530 transitions. [2024-09-12 18:07:09,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2024-09-12 18:07:09,364 INFO L78 Accepts]: Start accepts. Automaton has has 190 states, 189 states have (on average 2.497354497354497) internal successors, (472), 190 states have internal predecessors, (472), 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 240 [2024-09-12 18:07:09,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:07:09,366 INFO L225 Difference]: With dead ends: 483 [2024-09-12 18:07:09,367 INFO L226 Difference]: Without dead ends: 482 [2024-09-12 18:07:09,368 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 576 GetRequests, 388 SyntacticMatches, 0 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10765 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2024-09-12 18:07:09,369 INFO L434 NwaCegarLoop]: 9 mSDtfsCounter, 2 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:07:09,369 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 241 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:07:09,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2024-09-12 18:07:09,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 482. [2024-09-12 18:07:09,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 477 states have (on average 1.0041928721174005) internal successors, (479), 478 states have internal predecessors, (479), 2 states have call successors, (2), 2 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 18:07:09,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 482 transitions. [2024-09-12 18:07:09,435 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 482 transitions. Word has length 240 [2024-09-12 18:07:09,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:07:09,436 INFO L474 AbstractCegarLoop]: Abstraction has 482 states and 482 transitions. [2024-09-12 18:07:09,436 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 190 states, 189 states have (on average 2.497354497354497) internal successors, (472), 190 states have internal predecessors, (472), 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 18:07:09,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:07:09,437 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 482 transitions. [2024-09-12 18:07:09,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2024-09-12 18:07:09,442 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:07:09,442 INFO L216 NwaCegarLoop]: trace histogram [95, 94, 94, 94, 94, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:07:09,459 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 18:07:09,646 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-12 18:07:09,647 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:07:09,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:07:09,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1988892109, now seen corresponding path program 6 times [2024-09-12 18:07:09,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:07:09,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369219039] [2024-09-12 18:07:09,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:07:09,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:07:09,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:07:29,353 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:07:29,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:07:29,365 INFO L134 CoverageAnalysis]: Checked inductivity of 22043 backedges. 0 proven. 22043 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:07:29,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:07:29,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369219039] [2024-09-12 18:07:29,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369219039] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:07:29,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1172606213] [2024-09-12 18:07:29,366 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 18:07:29,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:07:29,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:07:29,368 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 18:07:29,369 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 18:07:29,959 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2024-09-12 18:07:29,959 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:07:29,970 INFO L262 TraceCheckSpWp]: Trace formula consists of 1260 conjuncts, 192 conjuncts are in the unsatisfiable core [2024-09-12 18:07:29,978 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:07:30,495 INFO L134 CoverageAnalysis]: Checked inductivity of 22043 backedges. 0 proven. 22043 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:07:30,496 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:07:59,806 INFO L134 CoverageAnalysis]: Checked inductivity of 22043 backedges. 0 proven. 22043 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:07:59,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1172606213] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:07:59,807 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:07:59,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [191, 191, 191] total 381 [2024-09-12 18:07:59,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699636364] [2024-09-12 18:07:59,807 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:07:59,808 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 382 states [2024-09-12 18:07:59,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:07:59,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 382 interpolants. [2024-09-12 18:07:59,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36671, Invalid=108871, Unknown=0, NotChecked=0, Total=145542 [2024-09-12 18:07:59,824 INFO L87 Difference]: Start difference. First operand 482 states and 482 transitions. Second operand has 382 states, 381 states have (on average 2.4881889763779528) internal successors, (948), 382 states have internal predecessors, (948), 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 18:08:03,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:08:03,671 INFO L93 Difference]: Finished difference Result 1056 states and 1151 transitions. [2024-09-12 18:08:03,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 382 states. [2024-09-12 18:08:03,672 INFO L78 Accepts]: Start accepts. Automaton has has 382 states, 381 states have (on average 2.4881889763779528) internal successors, (948), 382 states have internal predecessors, (948), 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 478 [2024-09-12 18:08:03,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:08:03,677 INFO L225 Difference]: With dead ends: 1056 [2024-09-12 18:08:03,677 INFO L226 Difference]: Without dead ends: 1055 [2024-09-12 18:08:03,683 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1148 GetRequests, 768 SyntacticMatches, 0 SemanticMatches, 380 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44557 ImplicationChecksByTransitivity, 39.8s TimeCoverageRelationStatistics Valid=36671, Invalid=108871, Unknown=0, NotChecked=0, Total=145542 [2024-09-12 18:08:03,684 INFO L434 NwaCegarLoop]: 9 mSDtfsCounter, 471 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:08:03,684 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 528 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:08:03,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1055 states. [2024-09-12 18:08:03,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1055 to 960. [2024-09-12 18:08:03,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 960 states, 955 states have (on average 1.1015706806282723) internal successors, (1052), 956 states have internal predecessors, (1052), 2 states have call successors, (2), 2 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 18:08:03,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 960 states to 960 states and 1055 transitions. [2024-09-12 18:08:03,815 INFO L78 Accepts]: Start accepts. Automaton has 960 states and 1055 transitions. Word has length 478 [2024-09-12 18:08:03,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:08:03,816 INFO L474 AbstractCegarLoop]: Abstraction has 960 states and 1055 transitions. [2024-09-12 18:08:03,817 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 382 states, 381 states have (on average 2.4881889763779528) internal successors, (948), 382 states have internal predecessors, (948), 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 18:08:03,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:08:03,817 INFO L276 IsEmpty]: Start isEmpty. Operand 960 states and 1055 transitions. [2024-09-12 18:08:03,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2024-09-12 18:08:03,824 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:08:03,824 INFO L216 NwaCegarLoop]: trace histogram [95, 95, 95, 94, 94, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:08:03,845 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 18:08:04,028 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-09-12 18:08:04,029 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:08:04,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:08:04,029 INFO L85 PathProgramCache]: Analyzing trace with hash 64871695, now seen corresponding path program 6 times [2024-09-12 18:08:04,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:08:04,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750643604] [2024-09-12 18:08:04,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:08:04,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:08:04,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:08:22,831 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:08:22,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:08:22,840 INFO L134 CoverageAnalysis]: Checked inductivity of 22231 backedges. 0 proven. 22231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:08:22,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:08:22,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750643604] [2024-09-12 18:08:22,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750643604] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:08:22,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601145459] [2024-09-12 18:08:22,845 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 18:08:22,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:08:22,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:08:22,847 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 18:08:22,848 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 18:08:23,476 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2024-09-12 18:08:23,477 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:08:23,492 INFO L262 TraceCheckSpWp]: Trace formula consists of 1266 conjuncts, 192 conjuncts are in the unsatisfiable core [2024-09-12 18:08:23,502 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:08:24,113 INFO L134 CoverageAnalysis]: Checked inductivity of 22231 backedges. 0 proven. 22231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:08:24,117 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:08:52,736 INFO L134 CoverageAnalysis]: Checked inductivity of 22231 backedges. 0 proven. 22231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:08:52,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [601145459] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:08:52,737 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:08:52,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [191, 191, 191] total 381 [2024-09-12 18:08:52,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276576815] [2024-09-12 18:08:52,737 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:08:52,746 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 382 states [2024-09-12 18:08:52,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:08:52,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 382 interpolants. [2024-09-12 18:08:52,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36671, Invalid=108871, Unknown=0, NotChecked=0, Total=145542 [2024-09-12 18:08:52,787 INFO L87 Difference]: Start difference. First operand 960 states and 1055 transitions. Second operand has 382 states, 381 states have (on average 2.4986876640419946) internal successors, (952), 382 states have internal predecessors, (952), 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 18:08:55,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:08:55,836 INFO L93 Difference]: Finished difference Result 963 states and 1058 transitions. [2024-09-12 18:08:55,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 382 states. [2024-09-12 18:08:55,837 INFO L78 Accepts]: Start accepts. Automaton has has 382 states, 381 states have (on average 2.4986876640419946) internal successors, (952), 382 states have internal predecessors, (952), 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 480 [2024-09-12 18:08:55,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:08:55,842 INFO L225 Difference]: With dead ends: 963 [2024-09-12 18:08:55,842 INFO L226 Difference]: Without dead ends: 962 [2024-09-12 18:08:55,849 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1152 GetRequests, 772 SyntacticMatches, 0 SemanticMatches, 380 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44557 ImplicationChecksByTransitivity, 38.7s TimeCoverageRelationStatistics Valid=36671, Invalid=108871, Unknown=0, NotChecked=0, Total=145542 [2024-09-12 18:08:55,850 INFO L434 NwaCegarLoop]: 9 mSDtfsCounter, 2 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:08:55,850 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 475 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:08:55,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2024-09-12 18:08:55,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 962. [2024-09-12 18:08:55,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 957 states have (on average 1.0020898641588296) internal successors, (959), 958 states have internal predecessors, (959), 2 states have call successors, (2), 2 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 18:08:55,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 962 transitions. [2024-09-12 18:08:55,983 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 962 transitions. Word has length 480 [2024-09-12 18:08:55,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:08:55,984 INFO L474 AbstractCegarLoop]: Abstraction has 962 states and 962 transitions. [2024-09-12 18:08:55,985 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 382 states, 381 states have (on average 2.4986876640419946) internal successors, (952), 382 states have internal predecessors, (952), 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 18:08:55,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:08:55,985 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 962 transitions. [2024-09-12 18:08:55,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 959 [2024-09-12 18:08:55,992 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:08:55,992 INFO L216 NwaCegarLoop]: trace histogram [191, 190, 190, 190, 190, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:08:56,011 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 18:08:56,196 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-09-12 18:08:56,197 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:08:56,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:08:56,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1161340467, now seen corresponding path program 7 times [2024-09-12 18:08:56,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:08:56,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339845536] [2024-09-12 18:08:56,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:08:56,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:08:57,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:10:30,860 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:10:30,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:10:30,873 INFO L134 CoverageAnalysis]: Checked inductivity of 90155 backedges. 0 proven. 90155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:10:30,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:10:30,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339845536] [2024-09-12 18:10:30,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339845536] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:10:30,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [694360643] [2024-09-12 18:10:30,874 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 18:10:30,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:10:30,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:10:30,876 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:10:30,877 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-12 18:10:31,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:10:31,341 INFO L262 TraceCheckSpWp]: Trace formula consists of 2508 conjuncts, 384 conjuncts are in the unsatisfiable core [2024-09-12 18:10:31,356 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:10:32,433 INFO L134 CoverageAnalysis]: Checked inductivity of 90155 backedges. 0 proven. 90155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:10:32,433 INFO L327 TraceCheckSpWp]: Computing backward predicates...