./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops-crafted-1/loopv3.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/loops-crafted-1/loopv3.c -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dde080b2b1290163775d8fea1546e1b21e5d1f7776ff175b316d8ca2be5d0863 --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-12 18:14:01,979 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 18:14:02,072 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 18:14:02,078 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 18:14:02,078 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 18:14:02,113 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 18:14:02,116 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 18:14:02,116 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 18:14:02,117 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 18:14:02,117 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 18:14:02,117 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 18:14:02,118 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 18:14:02,119 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 18:14:02,120 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 18:14:02,120 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 18:14:02,120 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 18:14:02,121 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 18:14:02,121 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 18:14:02,121 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 18:14:02,122 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 18:14:02,124 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 18:14:02,125 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 18:14:02,126 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 18:14:02,126 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 18:14:02,127 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 18:14:02,127 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 18:14:02,127 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 18:14:02,128 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 18:14:02,128 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 18:14:02,129 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 18:14:02,129 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 18:14:02,129 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 18:14:02,130 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:14:02,130 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 18:14:02,130 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 18:14:02,131 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 18:14:02,131 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 18:14:02,131 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 18:14:02,132 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 18:14:02,132 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 18:14:02,132 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 18:14:02,133 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 18:14:02,133 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dde080b2b1290163775d8fea1546e1b21e5d1f7776ff175b316d8ca2be5d0863 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 18:14:02,502 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 18:14:02,530 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 18:14:02,533 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 18:14:02,534 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 18:14:02,535 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 18:14:02,536 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loops-crafted-1/loopv3.c [2024-09-12 18:14:04,183 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 18:14:04,416 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 18:14:04,416 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loops-crafted-1/loopv3.c [2024-09-12 18:14:04,428 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/25a78c004/f893eb79d5034c72867086668d58a83d/FLAG633b952ff [2024-09-12 18:14:04,773 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/25a78c004/f893eb79d5034c72867086668d58a83d [2024-09-12 18:14:04,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 18:14:04,778 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 18:14:04,779 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 18:14:04,779 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 18:14:04,784 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 18:14:04,785 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:14:04" (1/1) ... [2024-09-12 18:14:04,786 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d2b181b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:14:04, skipping insertion in model container [2024-09-12 18:14:04,786 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:14:04" (1/1) ... [2024-09-12 18:14:04,806 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 18:14:04,962 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loops-crafted-1/loopv3.c[456,469] [2024-09-12 18:14:04,979 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:14:05,001 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 18:14:05,015 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loops-crafted-1/loopv3.c[456,469] [2024-09-12 18:14:05,018 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:14:05,038 INFO L204 MainTranslator]: Completed translation [2024-09-12 18:14:05,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:14:05 WrapperNode [2024-09-12 18:14:05,039 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 18:14:05,041 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 18:14:05,041 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 18:14:05,041 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 18:14:05,049 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:14:05" (1/1) ... [2024-09-12 18:14:05,056 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:14:05" (1/1) ... [2024-09-12 18:14:05,064 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 18:14:05,064 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 18:14:05,065 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 18:14:05,065 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 18:14:05,065 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 18:14:05,075 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:14:05" (1/1) ... [2024-09-12 18:14:05,076 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:14:05" (1/1) ... [2024-09-12 18:14:05,081 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:14:05" (1/1) ... [2024-09-12 18:14:05,101 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-12 18:14:05,105 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:14:05" (1/1) ... [2024-09-12 18:14:05,106 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:14:05" (1/1) ... [2024-09-12 18:14:05,108 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:14:05" (1/1) ... [2024-09-12 18:14:05,116 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:14:05" (1/1) ... [2024-09-12 18:14:05,119 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:14:05" (1/1) ... [2024-09-12 18:14:05,120 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:14:05" (1/1) ... [2024-09-12 18:14:05,121 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 18:14:05,124 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 18:14:05,124 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 18:14:05,125 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 18:14:05,126 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:14:05" (1/1) ... [2024-09-12 18:14:05,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:14:05,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:14:05,168 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-12 18:14:05,171 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-12 18:14:05,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 18:14:05,220 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 18:14:05,221 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 18:14:05,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 18:14:05,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 18:14:05,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 18:14:05,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 18:14:05,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 18:14:05,221 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 18:14:05,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 18:14:05,286 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 18:14:05,288 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 18:14:05,505 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-09-12 18:14:05,506 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 18:14:05,540 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 18:14:05,540 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-12 18:14:05,541 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:14:05 BoogieIcfgContainer [2024-09-12 18:14:05,541 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 18:14:05,543 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 18:14:05,543 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 18:14:05,547 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 18:14:05,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 06:14:04" (1/3) ... [2024-09-12 18:14:05,548 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@188ebeb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:14:05, skipping insertion in model container [2024-09-12 18:14:05,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:14:05" (2/3) ... [2024-09-12 18:14:05,548 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@188ebeb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:14:05, skipping insertion in model container [2024-09-12 18:14:05,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:14:05" (3/3) ... [2024-09-12 18:14:05,550 INFO L112 eAbstractionObserver]: Analyzing ICFG loopv3.c [2024-09-12 18:14:05,568 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 18:14:05,569 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2024-09-12 18:14:05,646 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 18:14:05,654 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;@16064994, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 18:14:05,655 INFO L337 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-09-12 18:14:05,660 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 27 states have internal predecessors, (31), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:14:05,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-09-12 18:14:05,669 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:14:05,671 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:14:05,671 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:14:05,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:05,679 INFO L85 PathProgramCache]: Analyzing trace with hash -101382223, now seen corresponding path program 1 times [2024-09-12 18:14:05,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:14:05,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624131745] [2024-09-12 18:14:05,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:14:05,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:14:05,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:05,967 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:14:05,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:05,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:05,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:14:05,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624131745] [2024-09-12 18:14:05,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624131745] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:14:05,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:14:05,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:14:05,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33726426] [2024-09-12 18:14:05,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:14:05,997 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:14:05,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:14:06,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:14:06,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:14:06,022 INFO L87 Difference]: Start difference. First operand has 34 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 27 states have internal predecessors, (31), 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 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 18:14:06,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:14:06,234 INFO L93 Difference]: Finished difference Result 63 states and 70 transitions. [2024-09-12 18:14:06,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:14:06,239 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) Word has length 7 [2024-09-12 18:14:06,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:14:06,248 INFO L225 Difference]: With dead ends: 63 [2024-09-12 18:14:06,249 INFO L226 Difference]: Without dead ends: 34 [2024-09-12 18:14:06,253 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:14:06,258 INFO L434 NwaCegarLoop]: 4 mSDtfsCounter, 68 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:14:06,261 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 8 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:14:06,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-09-12 18:14:06,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-09-12 18:14:06,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 29 states have internal predecessors, (32), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:06,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2024-09-12 18:14:06,316 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 7 [2024-09-12 18:14:06,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:14:06,317 INFO L474 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2024-09-12 18:14:06,318 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 18:14:06,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:06,319 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2024-09-12 18:14:06,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-09-12 18:14:06,320 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:14:06,320 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:14:06,321 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 18:14:06,321 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:14:06,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:06,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1719077718, now seen corresponding path program 1 times [2024-09-12 18:14:06,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:14:06,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356078347] [2024-09-12 18:14:06,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:14:06,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:14:06,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:06,571 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:14:06,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:06,608 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:06,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:14:06,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356078347] [2024-09-12 18:14:06,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356078347] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:14:06,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1600876849] [2024-09-12 18:14:06,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:14:06,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:14:06,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:14:06,615 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:14:06,619 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-12 18:14:06,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:06,672 INFO L262 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:14:06,678 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:14:06,781 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:06,782 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:14:06,857 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:06,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1600876849] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:14:06,862 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:14:06,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-09-12 18:14:06,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285586911] [2024-09-12 18:14:06,863 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:14:06,864 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:14:06,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:14:06,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:14:06,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:14:06,865 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand has 11 states, 11 states have (on average 2.0) internal successors, (22), 9 states have internal predecessors, (22), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:14:07,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:14:07,107 INFO L93 Difference]: Finished difference Result 62 states and 74 transitions. [2024-09-12 18:14:07,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:14:07,108 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.0) internal successors, (22), 9 states have internal predecessors, (22), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 11 [2024-09-12 18:14:07,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:14:07,109 INFO L225 Difference]: With dead ends: 62 [2024-09-12 18:14:07,109 INFO L226 Difference]: Without dead ends: 47 [2024-09-12 18:14:07,110 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=151, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:14:07,112 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 109 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:14:07,112 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 7 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:14:07,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-09-12 18:14:07,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-09-12 18:14:07,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 34 states have (on average 1.5588235294117647) internal successors, (53), 42 states have internal predecessors, (53), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:07,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 57 transitions. [2024-09-12 18:14:07,132 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 57 transitions. Word has length 11 [2024-09-12 18:14:07,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:14:07,132 INFO L474 AbstractCegarLoop]: Abstraction has 47 states and 57 transitions. [2024-09-12 18:14:07,133 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.0) internal successors, (22), 9 states have internal predecessors, (22), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:14:07,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:07,134 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 57 transitions. [2024-09-12 18:14:07,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-09-12 18:14:07,134 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:14:07,134 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:14:07,151 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-12 18:14:07,335 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:14:07,336 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:14:07,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:07,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1751803181, now seen corresponding path program 1 times [2024-09-12 18:14:07,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:14:07,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205745897] [2024-09-12 18:14:07,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:14:07,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:14:07,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:07,417 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:14:07,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:07,428 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:07,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:14:07,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205745897] [2024-09-12 18:14:07,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205745897] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:14:07,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1626617469] [2024-09-12 18:14:07,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:14:07,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:14:07,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:14:07,431 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:14:07,433 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-12 18:14:07,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:07,471 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:14:07,473 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:14:07,500 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:07,500 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:14:07,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1626617469] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:14:07,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:14:07,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-09-12 18:14:07,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768428753] [2024-09-12 18:14:07,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:14:07,501 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:14:07,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:14:07,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:14:07,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:14:07,502 INFO L87 Difference]: Start difference. First operand 47 states and 57 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:07,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:14:07,573 INFO L93 Difference]: Finished difference Result 73 states and 99 transitions. [2024-09-12 18:14:07,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:14:07,575 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2024-09-12 18:14:07,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:14:07,577 INFO L225 Difference]: With dead ends: 73 [2024-09-12 18:14:07,579 INFO L226 Difference]: Without dead ends: 70 [2024-09-12 18:14:07,580 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:14:07,581 INFO L434 NwaCegarLoop]: 16 mSDtfsCounter, 26 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:14:07,582 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 29 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:14:07,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-09-12 18:14:07,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 44. [2024-09-12 18:14:07,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 39 states have internal predecessors, (46), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:07,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 50 transitions. [2024-09-12 18:14:07,606 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 50 transitions. Word has length 12 [2024-09-12 18:14:07,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:14:07,607 INFO L474 AbstractCegarLoop]: Abstraction has 44 states and 50 transitions. [2024-09-12 18:14:07,607 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:07,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:07,609 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 50 transitions. [2024-09-12 18:14:07,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-09-12 18:14:07,610 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:14:07,610 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1] [2024-09-12 18:14:07,629 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-09-12 18:14:07,810 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:14:07,811 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:14:07,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:07,812 INFO L85 PathProgramCache]: Analyzing trace with hash -218483573, now seen corresponding path program 1 times [2024-09-12 18:14:07,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:14:07,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139067615] [2024-09-12 18:14:07,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:14:07,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:14:07,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:07,861 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:14:07,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:07,872 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 18:14:07,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:14:07,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139067615] [2024-09-12 18:14:07,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139067615] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:14:07,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2086995431] [2024-09-12 18:14:07,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:14:07,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:14:07,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:14:07,876 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:14:07,881 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-12 18:14:07,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:07,916 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:14:07,918 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:14:07,962 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:07,962 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:14:08,030 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:08,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2086995431] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:14:08,031 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:14:08,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 4] total 10 [2024-09-12 18:14:08,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011078704] [2024-09-12 18:14:08,032 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:14:08,032 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:14:08,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:14:08,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:14:08,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:14:08,034 INFO L87 Difference]: Start difference. First operand 44 states and 50 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:14:08,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:14:08,205 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2024-09-12 18:14:08,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:14:08,207 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2024-09-12 18:14:08,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:14:08,208 INFO L225 Difference]: With dead ends: 44 [2024-09-12 18:14:08,208 INFO L226 Difference]: Without dead ends: 41 [2024-09-12 18:14:08,209 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=168, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:14:08,210 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 100 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:14:08,210 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 10 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:14:08,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-09-12 18:14:08,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-09-12 18:14:08,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 36 states have internal predecessors, (41), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:08,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2024-09-12 18:14:08,237 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 17 [2024-09-12 18:14:08,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:14:08,237 INFO L474 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2024-09-12 18:14:08,238 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:14:08,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:08,238 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2024-09-12 18:14:08,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-09-12 18:14:08,239 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:14:08,239 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:14:08,258 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 18:14:08,440 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:14:08,441 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:14:08,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:08,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1473822169, now seen corresponding path program 1 times [2024-09-12 18:14:08,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:14:08,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240555822] [2024-09-12 18:14:08,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:14:08,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:14:08,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:08,641 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:14:08,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:08,660 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:08,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:14:08,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240555822] [2024-09-12 18:14:08,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240555822] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:14:08,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681635222] [2024-09-12 18:14:08,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:14:08,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:14:08,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:14:08,664 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:14:08,666 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-12 18:14:08,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:08,711 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:14:08,712 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:14:08,881 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:08,881 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:14:09,013 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:09,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1681635222] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:14:09,014 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:14:09,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 20 [2024-09-12 18:14:09,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136193599] [2024-09-12 18:14:09,015 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:14:09,015 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-09-12 18:14:09,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:14:09,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-09-12 18:14:09,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=231, Unknown=0, NotChecked=0, Total=380 [2024-09-12 18:14:09,017 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand has 20 states, 20 states have (on average 3.0) internal successors, (60), 18 states have internal predecessors, (60), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:14:09,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:14:09,399 INFO L93 Difference]: Finished difference Result 88 states and 103 transitions. [2024-09-12 18:14:09,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:14:09,400 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.0) internal successors, (60), 18 states have internal predecessors, (60), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2024-09-12 18:14:09,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:14:09,401 INFO L225 Difference]: With dead ends: 88 [2024-09-12 18:14:09,401 INFO L226 Difference]: Without dead ends: 77 [2024-09-12 18:14:09,402 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=329, Invalid=601, Unknown=0, NotChecked=0, Total=930 [2024-09-12 18:14:09,405 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 272 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:14:09,406 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 8 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:14:09,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-09-12 18:14:09,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-09-12 18:14:09,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 70 states have (on average 1.1857142857142857) internal successors, (83), 72 states have internal predecessors, (83), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:09,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 87 transitions. [2024-09-12 18:14:09,437 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 87 transitions. Word has length 25 [2024-09-12 18:14:09,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:14:09,438 INFO L474 AbstractCegarLoop]: Abstraction has 77 states and 87 transitions. [2024-09-12 18:14:09,438 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.0) internal successors, (60), 18 states have internal predecessors, (60), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:14:09,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:09,439 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 87 transitions. [2024-09-12 18:14:09,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-09-12 18:14:09,441 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:14:09,441 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:14:09,460 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-12 18:14:09,642 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:14:09,642 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:14:09,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:09,643 INFO L85 PathProgramCache]: Analyzing trace with hash 993586949, now seen corresponding path program 2 times [2024-09-12 18:14:09,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:14:09,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931592419] [2024-09-12 18:14:09,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:14:09,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:14:09,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:09,983 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:14:09,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:09,999 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:10,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:14:10,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931592419] [2024-09-12 18:14:10,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931592419] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:14:10,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025776793] [2024-09-12 18:14:10,000 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:14:10,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:14:10,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:14:10,003 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:14:10,005 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-12 18:14:10,053 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-12 18:14:10,054 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:14:10,055 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:14:10,057 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:14:10,155 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-09-12 18:14:10,155 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:14:10,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025776793] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:14:10,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:14:10,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [14] total 17 [2024-09-12 18:14:10,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381929725] [2024-09-12 18:14:10,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:14:10,156 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:14:10,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:14:10,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:14:10,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:14:10,157 INFO L87 Difference]: Start difference. First operand 77 states and 87 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 18:14:10,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:14:10,218 INFO L93 Difference]: Finished difference Result 77 states and 87 transitions. [2024-09-12 18:14:10,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:14:10,218 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) Word has length 49 [2024-09-12 18:14:10,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:14:10,219 INFO L225 Difference]: With dead ends: 77 [2024-09-12 18:14:10,220 INFO L226 Difference]: Without dead ends: 76 [2024-09-12 18:14:10,220 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2024-09-12 18:14:10,221 INFO L434 NwaCegarLoop]: 14 mSDtfsCounter, 18 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:14:10,221 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 38 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:14:10,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-09-12 18:14:10,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-09-12 18:14:10,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 70 states have (on average 1.1714285714285715) internal successors, (82), 71 states have internal predecessors, (82), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:10,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 86 transitions. [2024-09-12 18:14:10,239 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 86 transitions. Word has length 49 [2024-09-12 18:14:10,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:14:10,240 INFO L474 AbstractCegarLoop]: Abstraction has 76 states and 86 transitions. [2024-09-12 18:14:10,240 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 18:14:10,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:10,241 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 86 transitions. [2024-09-12 18:14:10,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-09-12 18:14:10,242 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:14:10,242 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:14:10,260 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-12 18:14:10,446 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-12 18:14:10,447 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:14:10,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:10,447 INFO L85 PathProgramCache]: Analyzing trace with hash 736424416, now seen corresponding path program 1 times [2024-09-12 18:14:10,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:14:10,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092948355] [2024-09-12 18:14:10,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:14:10,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:14:10,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:10,713 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:14:10,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:10,723 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:10,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:14:10,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092948355] [2024-09-12 18:14:10,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092948355] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:14:10,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076998127] [2024-09-12 18:14:10,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:14:10,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:14:10,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:14:10,726 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:14:10,730 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-12 18:14:10,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:10,778 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 18:14:10,780 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:14:11,096 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:11,096 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:14:11,396 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:11,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076998127] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:14:11,397 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:14:11,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 38 [2024-09-12 18:14:11,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310120916] [2024-09-12 18:14:11,397 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:14:11,397 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-09-12 18:14:11,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:14:11,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-09-12 18:14:11,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=581, Invalid=825, Unknown=0, NotChecked=0, Total=1406 [2024-09-12 18:14:11,404 INFO L87 Difference]: Start difference. First operand 76 states and 86 transitions. Second operand has 38 states, 38 states have (on average 3.5) internal successors, (133), 36 states have internal predecessors, (133), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:14:12,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:14:12,158 INFO L93 Difference]: Finished difference Result 158 states and 191 transitions. [2024-09-12 18:14:12,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-09-12 18:14:12,159 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 3.5) internal successors, (133), 36 states have internal predecessors, (133), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 50 [2024-09-12 18:14:12,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:14:12,161 INFO L225 Difference]: With dead ends: 158 [2024-09-12 18:14:12,161 INFO L226 Difference]: Without dead ends: 148 [2024-09-12 18:14:12,163 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1007 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1268, Invalid=2392, Unknown=0, NotChecked=0, Total=3660 [2024-09-12 18:14:12,163 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 426 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:14:12,164 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 11 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:14:12,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-09-12 18:14:12,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2024-09-12 18:14:12,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 142 states have (on average 1.1690140845070423) internal successors, (166), 143 states have internal predecessors, (166), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:12,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 170 transitions. [2024-09-12 18:14:12,194 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 170 transitions. Word has length 50 [2024-09-12 18:14:12,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:14:12,195 INFO L474 AbstractCegarLoop]: Abstraction has 148 states and 170 transitions. [2024-09-12 18:14:12,195 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 3.5) internal successors, (133), 36 states have internal predecessors, (133), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:14:12,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:12,196 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 170 transitions. [2024-09-12 18:14:12,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-09-12 18:14:12,198 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:14:12,199 INFO L216 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:14:12,214 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 18:14:12,402 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:14:12,403 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:14:12,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:12,403 INFO L85 PathProgramCache]: Analyzing trace with hash 2114764196, now seen corresponding path program 2 times [2024-09-12 18:14:12,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:14:12,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501097494] [2024-09-12 18:14:12,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:14:12,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:14:12,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:13,111 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:14:13,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:13,119 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:13,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:14:13,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501097494] [2024-09-12 18:14:13,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501097494] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:14:13,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468003614] [2024-09-12 18:14:13,120 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:14:13,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:14:13,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:14:13,122 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:14:13,124 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-12 18:14:13,203 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:14:13,204 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:14:13,205 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-09-12 18:14:13,208 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:14:13,913 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:13,913 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:14:14,843 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:14,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468003614] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:14:14,844 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:14:14,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26, 26] total 74 [2024-09-12 18:14:14,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461909205] [2024-09-12 18:14:14,844 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:14:14,845 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2024-09-12 18:14:14,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:14:14,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2024-09-12 18:14:14,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2309, Invalid=3093, Unknown=0, NotChecked=0, Total=5402 [2024-09-12 18:14:14,851 INFO L87 Difference]: Start difference. First operand 148 states and 170 transitions. Second operand has 74 states, 74 states have (on average 3.7432432432432434) internal successors, (277), 72 states have internal predecessors, (277), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:14:16,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:14:16,557 INFO L93 Difference]: Finished difference Result 302 states and 371 transitions. [2024-09-12 18:14:16,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-09-12 18:14:16,557 INFO L78 Accepts]: Start accepts. Automaton has has 74 states, 74 states have (on average 3.7432432432432434) internal successors, (277), 72 states have internal predecessors, (277), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 98 [2024-09-12 18:14:16,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:14:16,559 INFO L225 Difference]: With dead ends: 302 [2024-09-12 18:14:16,559 INFO L226 Difference]: Without dead ends: 292 [2024-09-12 18:14:16,564 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4319 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=4982, Invalid=9538, Unknown=0, NotChecked=0, Total=14520 [2024-09-12 18:14:16,565 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 946 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 946 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 212 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:14:16,565 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [946 Valid, 9 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [212 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:14:16,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2024-09-12 18:14:16,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2024-09-12 18:14:16,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 286 states have (on average 1.167832167832168) internal successors, (334), 287 states have internal predecessors, (334), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:16,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 338 transitions. [2024-09-12 18:14:16,629 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 338 transitions. Word has length 98 [2024-09-12 18:14:16,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:14:16,630 INFO L474 AbstractCegarLoop]: Abstraction has 292 states and 338 transitions. [2024-09-12 18:14:16,630 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 74 states have (on average 3.7432432432432434) internal successors, (277), 72 states have internal predecessors, (277), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:14:16,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:16,631 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 338 transitions. [2024-09-12 18:14:16,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-09-12 18:14:16,636 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:14:16,636 INFO L216 NwaCegarLoop]: trace histogram [46, 46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:14:16,650 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-09-12 18:14:16,838 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:14:16,839 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:14:16,839 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:16,840 INFO L85 PathProgramCache]: Analyzing trace with hash 357829932, now seen corresponding path program 3 times [2024-09-12 18:14:16,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:14:16,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942292553] [2024-09-12 18:14:16,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:14:16,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:14:16,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:18,859 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:14:18,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:18,870 INFO L134 CoverageAnalysis]: Checked inductivity of 4186 backedges. 0 proven. 4186 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:18,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:14:18,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942292553] [2024-09-12 18:14:18,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942292553] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:14:18,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [225824179] [2024-09-12 18:14:18,872 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:14:18,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:14:18,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:14:18,874 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:14:18,876 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-12 18:14:18,922 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 18:14:18,922 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:14:18,923 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:14:18,927 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:14:19,223 INFO L134 CoverageAnalysis]: Checked inductivity of 4186 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2024-09-12 18:14:19,224 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:14:19,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [225824179] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:14:19,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:14:19,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [50] total 54 [2024-09-12 18:14:19,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647896407] [2024-09-12 18:14:19,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:14:19,225 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:14:19,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:14:19,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:14:19,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1189, Invalid=1673, Unknown=0, NotChecked=0, Total=2862 [2024-09-12 18:14:19,227 INFO L87 Difference]: Start difference. First operand 292 states and 338 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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 18:14:19,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:14:19,377 INFO L93 Difference]: Finished difference Result 292 states and 338 transitions. [2024-09-12 18:14:19,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:14:19,378 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) Word has length 194 [2024-09-12 18:14:19,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:14:19,380 INFO L225 Difference]: With dead ends: 292 [2024-09-12 18:14:19,380 INFO L226 Difference]: Without dead ends: 291 [2024-09-12 18:14:19,381 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1201, Invalid=1879, Unknown=0, NotChecked=0, Total=3080 [2024-09-12 18:14:19,382 INFO L434 NwaCegarLoop]: 10 mSDtfsCounter, 17 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:14:19,382 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 34 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:14:19,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-09-12 18:14:19,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 291. [2024-09-12 18:14:19,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 286 states have (on average 1.1643356643356644) internal successors, (333), 286 states have internal predecessors, (333), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:19,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 337 transitions. [2024-09-12 18:14:19,423 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 337 transitions. Word has length 194 [2024-09-12 18:14:19,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:14:19,423 INFO L474 AbstractCegarLoop]: Abstraction has 291 states and 337 transitions. [2024-09-12 18:14:19,423 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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 18:14:19,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:19,424 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 337 transitions. [2024-09-12 18:14:19,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-09-12 18:14:19,427 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:14:19,427 INFO L216 NwaCegarLoop]: trace histogram [46, 46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:14:19,440 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-09-12 18:14:19,627 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:14:19,628 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:14:19,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:19,629 INFO L85 PathProgramCache]: Analyzing trace with hash 85635936, now seen corresponding path program 1 times [2024-09-12 18:14:19,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:14:19,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926915684] [2024-09-12 18:14:19,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:14:19,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:14:19,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:21,492 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:14:21,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:21,502 INFO L134 CoverageAnalysis]: Checked inductivity of 4186 backedges. 0 proven. 4186 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:21,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:14:21,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926915684] [2024-09-12 18:14:21,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926915684] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:14:21,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745607800] [2024-09-12 18:14:21,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:14:21,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:14:21,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:14:21,506 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:14:21,508 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-12 18:14:21,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:21,602 INFO L262 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-09-12 18:14:21,606 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:14:23,346 INFO L134 CoverageAnalysis]: Checked inductivity of 4186 backedges. 0 proven. 4186 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:23,347 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:14:26,120 INFO L134 CoverageAnalysis]: Checked inductivity of 4186 backedges. 0 proven. 4186 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:26,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [745607800] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:14:26,121 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:14:26,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50, 50] total 146 [2024-09-12 18:14:26,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132560921] [2024-09-12 18:14:26,121 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:14:26,122 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 146 states [2024-09-12 18:14:26,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:14:26,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 146 interpolants. [2024-09-12 18:14:26,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9221, Invalid=11949, Unknown=0, NotChecked=0, Total=21170 [2024-09-12 18:14:26,130 INFO L87 Difference]: Start difference. First operand 291 states and 337 transitions. Second operand has 146 states, 146 states have (on average 3.8904109589041096) internal successors, (568), 144 states have internal predecessors, (568), 4 states have call successors, (5), 5 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:14:32,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:14:32,140 INFO L93 Difference]: Finished difference Result 588 states and 729 transitions. [2024-09-12 18:14:32,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2024-09-12 18:14:32,141 INFO L78 Accepts]: Start accepts. Automaton has has 146 states, 146 states have (on average 3.8904109589041096) internal successors, (568), 144 states have internal predecessors, (568), 4 states have call successors, (5), 5 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 198 [2024-09-12 18:14:32,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:14:32,145 INFO L225 Difference]: With dead ends: 588 [2024-09-12 18:14:32,145 INFO L226 Difference]: Without dead ends: 579 [2024-09-12 18:14:32,151 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 541 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 239 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17855 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=19754, Invalid=38086, Unknown=0, NotChecked=0, Total=57840 [2024-09-12 18:14:32,152 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 2162 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 928 mSolverCounterSat, 403 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2162 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 1331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 403 IncrementalHoareTripleChecker+Valid, 928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:14:32,152 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2162 Valid, 13 Invalid, 1331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [403 Valid, 928 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 18:14:32,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2024-09-12 18:14:32,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 579. [2024-09-12 18:14:32,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 574 states have (on average 1.1655052264808363) internal successors, (669), 574 states have internal predecessors, (669), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:14:32,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 673 transitions. [2024-09-12 18:14:32,249 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 673 transitions. Word has length 198 [2024-09-12 18:14:32,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:14:32,250 INFO L474 AbstractCegarLoop]: Abstraction has 579 states and 673 transitions. [2024-09-12 18:14:32,251 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 146 states, 146 states have (on average 3.8904109589041096) internal successors, (568), 144 states have internal predecessors, (568), 4 states have call successors, (5), 5 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:14:32,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:32,251 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 673 transitions. [2024-09-12 18:14:32,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2024-09-12 18:14:32,258 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:14:32,258 INFO L216 NwaCegarLoop]: trace histogram [94, 94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:14:32,276 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-12 18:14:32,459 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-09-12 18:14:32,459 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:14:32,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:14:32,460 INFO L85 PathProgramCache]: Analyzing trace with hash 189934192, now seen corresponding path program 2 times [2024-09-12 18:14:32,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:14:32,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161803411] [2024-09-12 18:14:32,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:14:32,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:14:32,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:38,842 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:14:38,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:14:38,855 INFO L134 CoverageAnalysis]: Checked inductivity of 17578 backedges. 0 proven. 17578 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:38,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:14:38,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161803411] [2024-09-12 18:14:38,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161803411] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:14:38,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [374299595] [2024-09-12 18:14:38,856 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:14:38,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:14:38,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:14:38,858 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:14:38,860 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-12 18:14:39,000 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:14:39,000 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:14:39,006 INFO L262 TraceCheckSpWp]: Trace formula consists of 804 conjuncts, 97 conjuncts are in the unsatisfiable core [2024-09-12 18:14:39,012 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:14:43,446 INFO L134 CoverageAnalysis]: Checked inductivity of 17578 backedges. 0 proven. 17578 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:43,447 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:14:53,449 INFO L134 CoverageAnalysis]: Checked inductivity of 17578 backedges. 0 proven. 17578 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:14:53,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [374299595] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:14:53,450 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:14:53,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [98, 98, 98] total 290 [2024-09-12 18:14:53,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015391298] [2024-09-12 18:14:53,450 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:14:53,451 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 290 states [2024-09-12 18:14:53,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:14:53,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 290 interpolants. [2024-09-12 18:14:53,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36869, Invalid=46941, Unknown=0, NotChecked=0, Total=83810 [2024-09-12 18:14:53,467 INFO L87 Difference]: Start difference. First operand 579 states and 673 transitions. Second operand has 290 states, 290 states have (on average 3.9448275862068964) internal successors, (1144), 288 states have internal predecessors, (1144), 4 states have call successors, (5), 5 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:15:27,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:15:27,125 INFO L93 Difference]: Finished difference Result 1164 states and 1449 transitions. [2024-09-12 18:15:27,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 195 states. [2024-09-12 18:15:27,127 INFO L78 Accepts]: Start accepts. Automaton has has 290 states, 290 states have (on average 3.9448275862068964) internal successors, (1144), 288 states have internal predecessors, (1144), 4 states have call successors, (5), 5 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 390 [2024-09-12 18:15:27,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:15:27,132 INFO L225 Difference]: With dead ends: 1164 [2024-09-12 18:15:27,132 INFO L226 Difference]: Without dead ends: 1155 [2024-09-12 18:15:27,147 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1069 GetRequests, 590 SyntacticMatches, 0 SemanticMatches, 479 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72575 ImplicationChecksByTransitivity, 29.6s TimeCoverageRelationStatistics Valid=78674, Invalid=152206, Unknown=0, NotChecked=0, Total=230880 [2024-09-12 18:15:27,148 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 4099 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1790 mSolverCounterSat, 1029 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4099 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 2819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1029 IncrementalHoareTripleChecker+Valid, 1790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:15:27,148 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [4099 Valid, 10 Invalid, 2819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1029 Valid, 1790 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-09-12 18:15:27,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2024-09-12 18:15:27,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 1155. [2024-09-12 18:15:27,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1155 states, 1150 states have (on average 1.166086956521739) internal successors, (1341), 1150 states have internal predecessors, (1341), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:15:27,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1345 transitions. [2024-09-12 18:15:27,285 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1345 transitions. Word has length 390 [2024-09-12 18:15:27,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:15:27,285 INFO L474 AbstractCegarLoop]: Abstraction has 1155 states and 1345 transitions. [2024-09-12 18:15:27,286 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 290 states, 290 states have (on average 3.9448275862068964) internal successors, (1144), 288 states have internal predecessors, (1144), 4 states have call successors, (5), 5 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:15:27,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:15:27,287 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1345 transitions. [2024-09-12 18:15:27,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 775 [2024-09-12 18:15:27,305 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:15:27,306 INFO L216 NwaCegarLoop]: trace histogram [190, 190, 190, 190, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:15:27,325 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 18:15:27,509 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-09-12 18:15:27,510 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:15:27,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:15:27,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1434675056, now seen corresponding path program 3 times [2024-09-12 18:15:27,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:15:27,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425812767] [2024-09-12 18:15:27,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:15:27,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:15:27,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:15:52,265 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:15:52,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:15:52,279 INFO L134 CoverageAnalysis]: Checked inductivity of 72010 backedges. 0 proven. 72010 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:15:52,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:15:52,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425812767] [2024-09-12 18:15:52,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425812767] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:15:52,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104841167] [2024-09-12 18:15:52,279 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:15:52,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:15:52,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:15:52,281 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 18:15:52,283 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 18:15:52,907 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 191 check-sat command(s) [2024-09-12 18:15:52,907 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:15:52,917 INFO L262 TraceCheckSpWp]: Trace formula consists of 1572 conjuncts, 193 conjuncts are in the unsatisfiable core [2024-09-12 18:15:52,928 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:16:08,137 INFO L134 CoverageAnalysis]: Checked inductivity of 72010 backedges. 0 proven. 72010 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:16:08,138 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:16:47,160 INFO L134 CoverageAnalysis]: Checked inductivity of 72010 backedges. 0 proven. 72010 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:16:47,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [104841167] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:16:47,160 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:16:47,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [194, 194, 194] total 578 [2024-09-12 18:16:47,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106303909] [2024-09-12 18:16:47,161 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:16:47,163 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 578 states [2024-09-12 18:16:47,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:16:47,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 578 interpolants. [2024-09-12 18:16:47,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147461, Invalid=186045, Unknown=0, NotChecked=0, Total=333506 [2024-09-12 18:16:47,202 INFO L87 Difference]: Start difference. First operand 1155 states and 1345 transitions. Second operand has 578 states, 578 states have (on average 3.972318339100346) internal successors, (2296), 576 states have internal predecessors, (2296), 4 states have call successors, (5), 5 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)