./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-invgen/fragtest_simple.i --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-invgen/fragtest_simple.i -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash be3b53cc5f9badbf5402cafcfa5766831674eb009261bc7c1bcbe9580aece38e --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 17:59:27,893 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 17:59:27,960 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 17:59:27,965 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 17:59:27,966 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 17:59:28,003 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 17:59:28,005 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 17:59:28,005 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 17:59:28,006 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 17:59:28,009 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 17:59:28,010 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 17:59:28,010 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 17:59:28,011 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 17:59:28,011 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 17:59:28,011 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 17:59:28,012 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 17:59:28,012 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 17:59:28,012 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 17:59:28,013 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 17:59:28,013 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 17:59:28,013 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 17:59:28,017 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 17:59:28,018 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 17:59:28,018 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 17:59:28,018 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 17:59:28,018 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 17:59:28,018 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 17:59:28,019 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 17:59:28,019 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 17:59:28,019 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 17:59:28,019 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 17:59:28,019 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 17:59:28,020 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 17:59:28,020 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 17:59:28,020 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 17:59:28,020 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 17:59:28,021 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 17:59:28,021 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 17:59:28,021 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 17:59:28,023 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 17:59:28,023 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 17:59:28,024 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 17:59:28,024 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be3b53cc5f9badbf5402cafcfa5766831674eb009261bc7c1bcbe9580aece38e Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 17:59:28,337 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 17:59:28,361 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 17:59:28,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 17:59:28,364 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 17:59:28,365 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 17:59:28,367 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loop-invgen/fragtest_simple.i [2024-09-12 17:59:29,911 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 17:59:30,111 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 17:59:30,112 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/fragtest_simple.i [2024-09-12 17:59:30,123 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/0ff983bb8/5e62ace97c5d4b829e4bcae965fef15b/FLAG119bda625 [2024-09-12 17:59:30,140 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/0ff983bb8/5e62ace97c5d4b829e4bcae965fef15b [2024-09-12 17:59:30,145 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 17:59:30,146 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 17:59:30,149 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 17:59:30,149 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 17:59:30,155 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 17:59:30,156 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 05:59:30" (1/1) ... [2024-09-12 17:59:30,157 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3db15f68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:30, skipping insertion in model container [2024-09-12 17:59:30,157 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 05:59:30" (1/1) ... [2024-09-12 17:59:30,178 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 17:59:30,344 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/fragtest_simple.i[893,906] [2024-09-12 17:59:30,369 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 17:59:30,380 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 17:59:30,393 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/fragtest_simple.i[893,906] [2024-09-12 17:59:30,404 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 17:59:30,419 INFO L204 MainTranslator]: Completed translation [2024-09-12 17:59:30,420 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:30 WrapperNode [2024-09-12 17:59:30,420 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 17:59:30,422 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 17:59:30,422 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 17:59:30,422 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 17:59:30,428 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:30" (1/1) ... [2024-09-12 17:59:30,435 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:30" (1/1) ... [2024-09-12 17:59:30,441 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 17:59:30,441 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 17:59:30,443 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 17:59:30,443 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 17:59:30,443 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 17:59:30,453 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:30" (1/1) ... [2024-09-12 17:59:30,454 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:30" (1/1) ... [2024-09-12 17:59:30,455 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:30" (1/1) ... [2024-09-12 17:59:30,478 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 17:59:30,478 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:30" (1/1) ... [2024-09-12 17:59:30,478 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:30" (1/1) ... [2024-09-12 17:59:30,485 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:30" (1/1) ... [2024-09-12 17:59:30,489 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:30" (1/1) ... [2024-09-12 17:59:30,490 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:30" (1/1) ... [2024-09-12 17:59:30,490 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:30" (1/1) ... [2024-09-12 17:59:30,491 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 17:59:30,494 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 17:59:30,494 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 17:59:30,495 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 17:59:30,496 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:30" (1/1) ... [2024-09-12 17:59:30,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 17:59:30,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:30,530 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 17:59:30,533 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 17:59:30,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 17:59:30,577 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 17:59:30,577 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 17:59:30,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 17:59:30,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 17:59:30,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 17:59:30,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 17:59:30,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 17:59:30,580 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 17:59:30,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 17:59:30,647 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 17:59:30,649 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 17:59:30,857 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-09-12 17:59:30,857 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 17:59:30,891 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 17:59:30,891 INFO L318 CfgBuilder]: Removed 3 assume(true) statements. [2024-09-12 17:59:30,892 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 05:59:30 BoogieIcfgContainer [2024-09-12 17:59:30,892 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 17:59:30,893 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 17:59:30,893 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 17:59:30,900 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 17:59:30,900 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 05:59:30" (1/3) ... [2024-09-12 17:59:30,901 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57279dc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 05:59:30, skipping insertion in model container [2024-09-12 17:59:30,901 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:30" (2/3) ... [2024-09-12 17:59:30,901 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57279dc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 05:59:30, skipping insertion in model container [2024-09-12 17:59:30,901 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 05:59:30" (3/3) ... [2024-09-12 17:59:30,902 INFO L112 eAbstractionObserver]: Analyzing ICFG fragtest_simple.i [2024-09-12 17:59:30,919 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 17:59:30,920 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2024-09-12 17:59:30,987 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 17:59:30,994 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;@540a884a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 17:59:30,995 INFO L337 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-09-12 17:59:30,999 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 29 states have (on average 1.7586206896551724) internal successors, (51), 42 states have internal predecessors, (51), 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 17:59:31,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-09-12 17:59:31,006 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:31,006 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:31,007 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 17:59:31,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:31,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1462499538, now seen corresponding path program 1 times [2024-09-12 17:59:31,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:31,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942692881] [2024-09-12 17:59:31,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:31,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:31,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:31,206 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:31,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:31,221 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 17:59:31,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:31,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942692881] [2024-09-12 17:59:31,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942692881] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:31,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:59:31,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 17:59:31,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469527979] [2024-09-12 17:59:31,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:31,234 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 17:59:31,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:31,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 17:59:31,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 17:59:31,261 INFO L87 Difference]: Start difference. First operand has 49 states, 29 states have (on average 1.7586206896551724) internal successors, (51), 42 states have internal predecessors, (51), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:59:31,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:31,372 INFO L93 Difference]: Finished difference Result 107 states and 135 transitions. [2024-09-12 17:59:31,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 17:59:31,374 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 8 [2024-09-12 17:59:31,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:31,390 INFO L225 Difference]: With dead ends: 107 [2024-09-12 17:59:31,390 INFO L226 Difference]: Without dead ends: 63 [2024-09-12 17:59:31,394 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 17:59:31,398 INFO L434 NwaCegarLoop]: 37 mSDtfsCounter, 13 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:31,399 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 66 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:31,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-09-12 17:59:31,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 60. [2024-09-12 17:59:31,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 41 states have (on average 1.4878048780487805) internal successors, (61), 53 states have internal predecessors, (61), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 17:59:31,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 68 transitions. [2024-09-12 17:59:31,451 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 68 transitions. Word has length 8 [2024-09-12 17:59:31,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:31,452 INFO L474 AbstractCegarLoop]: Abstraction has 60 states and 68 transitions. [2024-09-12 17:59:31,452 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:59:31,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:31,454 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 68 transitions. [2024-09-12 17:59:31,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-09-12 17:59:31,455 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:31,455 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:31,455 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 17:59:31,456 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 17:59:31,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:31,460 INFO L85 PathProgramCache]: Analyzing trace with hash -2078825945, now seen corresponding path program 1 times [2024-09-12 17:59:31,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:31,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474214541] [2024-09-12 17:59:31,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:31,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:31,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:31,552 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:31,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:31,562 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 17:59:31,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:31,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474214541] [2024-09-12 17:59:31,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474214541] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:31,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948085238] [2024-09-12 17:59:31,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:31,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:31,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:31,568 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 17:59:31,569 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 17:59:31,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:31,616 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 17:59:31,620 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:31,709 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 17:59:31,714 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 17:59:31,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948085238] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:31,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 17:59:31,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-09-12 17:59:31,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114207857] [2024-09-12 17:59:31,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:31,717 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 17:59:31,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:31,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 17:59:31,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 17:59:31,724 INFO L87 Difference]: Start difference. First operand 60 states and 68 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 17:59:31,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:31,882 INFO L93 Difference]: Finished difference Result 83 states and 97 transitions. [2024-09-12 17:59:31,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 17:59:31,886 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 17:59:31,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:31,888 INFO L225 Difference]: With dead ends: 83 [2024-09-12 17:59:31,890 INFO L226 Difference]: Without dead ends: 80 [2024-09-12 17:59:31,890 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 17:59:31,892 INFO L434 NwaCegarLoop]: 43 mSDtfsCounter, 34 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:31,893 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 91 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:31,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-09-12 17:59:31,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 72. [2024-09-12 17:59:31,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 53 states have (on average 1.471698113207547) internal successors, (78), 63 states have internal predecessors, (78), 6 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 17:59:31,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 89 transitions. [2024-09-12 17:59:31,915 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 89 transitions. Word has length 12 [2024-09-12 17:59:31,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:31,916 INFO L474 AbstractCegarLoop]: Abstraction has 72 states and 89 transitions. [2024-09-12 17:59:31,917 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 17:59:31,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:31,917 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 89 transitions. [2024-09-12 17:59:31,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-09-12 17:59:31,919 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:31,919 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:31,936 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 17:59:32,120 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 17:59:32,121 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 17:59:32,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:32,121 INFO L85 PathProgramCache]: Analyzing trace with hash -19094806, now seen corresponding path program 1 times [2024-09-12 17:59:32,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:32,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261059011] [2024-09-12 17:59:32,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:32,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:32,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:32,180 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:32,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:32,185 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-12 17:59:32,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:32,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261059011] [2024-09-12 17:59:32,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261059011] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:32,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:59:32,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 17:59:32,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215261688] [2024-09-12 17:59:32,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:32,187 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 17:59:32,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:32,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 17:59:32,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 17:59:32,188 INFO L87 Difference]: Start difference. First operand 72 states and 89 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 17:59:32,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:32,258 INFO L93 Difference]: Finished difference Result 87 states and 107 transitions. [2024-09-12 17:59:32,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 17:59:32,264 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 13 [2024-09-12 17:59:32,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:32,265 INFO L225 Difference]: With dead ends: 87 [2024-09-12 17:59:32,266 INFO L226 Difference]: Without dead ends: 84 [2024-09-12 17:59:32,266 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 17:59:32,267 INFO L434 NwaCegarLoop]: 29 mSDtfsCounter, 18 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:32,268 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 55 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:32,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-09-12 17:59:32,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 72. [2024-09-12 17:59:32,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 54 states have (on average 1.5) internal successors, (81), 62 states have internal predecessors, (81), 7 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 17:59:32,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 94 transitions. [2024-09-12 17:59:32,283 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 94 transitions. Word has length 13 [2024-09-12 17:59:32,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:32,283 INFO L474 AbstractCegarLoop]: Abstraction has 72 states and 94 transitions. [2024-09-12 17:59:32,284 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 17:59:32,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:32,284 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 94 transitions. [2024-09-12 17:59:32,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-09-12 17:59:32,285 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:32,285 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:32,285 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-12 17:59:32,286 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 17:59:32,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:32,286 INFO L85 PathProgramCache]: Analyzing trace with hash -963302623, now seen corresponding path program 1 times [2024-09-12 17:59:32,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:32,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757610125] [2024-09-12 17:59:32,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:32,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:32,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:32,351 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:32,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:32,358 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 17:59:32,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:32,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757610125] [2024-09-12 17:59:32,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757610125] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:32,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:59:32,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 17:59:32,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540709537] [2024-09-12 17:59:32,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:32,360 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 17:59:32,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:32,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 17:59:32,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 17:59:32,365 INFO L87 Difference]: Start difference. First operand 72 states and 94 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:59:32,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:32,404 INFO L93 Difference]: Finished difference Result 80 states and 100 transitions. [2024-09-12 17:59:32,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 17:59:32,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2024-09-12 17:59:32,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:32,406 INFO L225 Difference]: With dead ends: 80 [2024-09-12 17:59:32,406 INFO L226 Difference]: Without dead ends: 76 [2024-09-12 17:59:32,406 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 17:59:32,407 INFO L434 NwaCegarLoop]: 39 mSDtfsCounter, 9 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:32,408 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 65 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 17:59:32,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-09-12 17:59:32,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-09-12 17:59:32,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 58 states have (on average 1.4310344827586208) internal successors, (83), 66 states have internal predecessors, (83), 7 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 17:59:32,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 96 transitions. [2024-09-12 17:59:32,421 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 96 transitions. Word has length 14 [2024-09-12 17:59:32,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:32,422 INFO L474 AbstractCegarLoop]: Abstraction has 76 states and 96 transitions. [2024-09-12 17:59:32,422 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:59:32,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:32,423 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 96 transitions. [2024-09-12 17:59:32,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-09-12 17:59:32,423 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:32,423 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:32,423 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-12 17:59:32,424 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 17:59:32,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:32,424 INFO L85 PathProgramCache]: Analyzing trace with hash -248263901, now seen corresponding path program 1 times [2024-09-12 17:59:32,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:32,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838339568] [2024-09-12 17:59:32,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:32,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:32,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:32,612 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:32,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:32,620 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 17:59:32,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:32,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838339568] [2024-09-12 17:59:32,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838339568] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:32,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:59:32,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 17:59:32,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637413070] [2024-09-12 17:59:32,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:32,625 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 17:59:32,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:32,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 17:59:32,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 17:59:32,627 INFO L87 Difference]: Start difference. First operand 76 states and 96 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:59:32,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:32,714 INFO L93 Difference]: Finished difference Result 83 states and 101 transitions. [2024-09-12 17:59:32,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 17:59:32,714 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-09-12 17:59:32,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:32,716 INFO L225 Difference]: With dead ends: 83 [2024-09-12 17:59:32,716 INFO L226 Difference]: Without dead ends: 79 [2024-09-12 17:59:32,717 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 17:59:32,720 INFO L434 NwaCegarLoop]: 34 mSDtfsCounter, 12 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:32,720 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 119 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:32,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-09-12 17:59:32,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2024-09-12 17:59:32,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 61 states have (on average 1.3770491803278688) internal successors, (84), 68 states have internal predecessors, (84), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 17:59:32,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 97 transitions. [2024-09-12 17:59:32,740 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 97 transitions. Word has length 17 [2024-09-12 17:59:32,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:32,740 INFO L474 AbstractCegarLoop]: Abstraction has 79 states and 97 transitions. [2024-09-12 17:59:32,740 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:59:32,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:32,741 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 97 transitions. [2024-09-12 17:59:32,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-09-12 17:59:32,745 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:32,745 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:32,745 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-09-12 17:59:32,745 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 17:59:32,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:32,746 INFO L85 PathProgramCache]: Analyzing trace with hash 683601813, now seen corresponding path program 1 times [2024-09-12 17:59:32,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:32,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118444731] [2024-09-12 17:59:32,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:32,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:32,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:32,811 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:32,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:32,814 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:32,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:32,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118444731] [2024-09-12 17:59:32,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118444731] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:32,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304503921] [2024-09-12 17:59:32,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:32,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:32,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:32,817 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 17:59:32,819 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 17:59:32,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:32,859 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 17:59:32,860 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:32,897 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:32,897 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:32,955 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:32,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [304503921] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:32,955 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:32,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-09-12 17:59:32,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665163472] [2024-09-12 17:59:32,956 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:32,956 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 17:59:32,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:32,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 17:59:32,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 17:59:32,959 INFO L87 Difference]: Start difference. First operand 79 states and 97 transitions. Second operand has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:59:33,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:33,071 INFO L93 Difference]: Finished difference Result 160 states and 206 transitions. [2024-09-12 17:59:33,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 17:59:33,072 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2024-09-12 17:59:33,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:33,073 INFO L225 Difference]: With dead ends: 160 [2024-09-12 17:59:33,073 INFO L226 Difference]: Without dead ends: 158 [2024-09-12 17:59:33,074 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 17:59:33,076 INFO L434 NwaCegarLoop]: 38 mSDtfsCounter, 53 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:33,078 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 148 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:33,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-09-12 17:59:33,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 121. [2024-09-12 17:59:33,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 100 states have (on average 1.34) internal successors, (134), 107 states have internal predecessors, (134), 10 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 17:59:33,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 153 transitions. [2024-09-12 17:59:33,110 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 153 transitions. Word has length 21 [2024-09-12 17:59:33,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:33,111 INFO L474 AbstractCegarLoop]: Abstraction has 121 states and 153 transitions. [2024-09-12 17:59:33,111 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:59:33,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:33,111 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 153 transitions. [2024-09-12 17:59:33,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-09-12 17:59:33,112 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:33,112 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:33,127 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 17:59:33,313 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-12 17:59:33,313 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 17:59:33,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:33,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1987468127, now seen corresponding path program 1 times [2024-09-12 17:59:33,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:33,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578470776] [2024-09-12 17:59:33,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:33,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:33,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:33,341 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:33,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:33,345 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 17:59:33,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:33,349 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 17:59:33,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:33,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578470776] [2024-09-12 17:59:33,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578470776] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:33,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:59:33,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 17:59:33,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378445253] [2024-09-12 17:59:33,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:33,350 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 17:59:33,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:33,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 17:59:33,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 17:59:33,352 INFO L87 Difference]: Start difference. First operand 121 states and 153 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 17:59:33,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:33,384 INFO L93 Difference]: Finished difference Result 128 states and 158 transitions. [2024-09-12 17:59:33,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 17:59:33,386 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2024-09-12 17:59:33,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:33,387 INFO L225 Difference]: With dead ends: 128 [2024-09-12 17:59:33,387 INFO L226 Difference]: Without dead ends: 126 [2024-09-12 17:59:33,387 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 17:59:33,388 INFO L434 NwaCegarLoop]: 40 mSDtfsCounter, 3 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:33,388 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 76 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 17:59:33,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2024-09-12 17:59:33,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 124. [2024-09-12 17:59:33,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 103 states have (on average 1.2912621359223302) internal successors, (133), 110 states have internal predecessors, (133), 10 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 17:59:33,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 152 transitions. [2024-09-12 17:59:33,414 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 152 transitions. Word has length 23 [2024-09-12 17:59:33,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:33,415 INFO L474 AbstractCegarLoop]: Abstraction has 124 states and 152 transitions. [2024-09-12 17:59:33,415 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 17:59:33,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:33,415 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 152 transitions. [2024-09-12 17:59:33,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-09-12 17:59:33,416 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:33,416 INFO L216 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:33,417 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-12 17:59:33,417 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 17:59:33,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:33,417 INFO L85 PathProgramCache]: Analyzing trace with hash 696334811, now seen corresponding path program 1 times [2024-09-12 17:59:33,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:33,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708881710] [2024-09-12 17:59:33,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:33,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:33,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:33,458 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:33,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:33,461 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-09-12 17:59:33,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:33,465 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:33,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:33,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708881710] [2024-09-12 17:59:33,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708881710] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:33,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [148786873] [2024-09-12 17:59:33,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:33,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:33,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:33,468 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 17:59:33,469 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 17:59:33,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:33,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 17:59:33,517 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:33,564 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:33,565 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:33,625 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:33,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [148786873] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:33,626 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:33,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-09-12 17:59:33,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925637207] [2024-09-12 17:59:33,626 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:33,626 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 17:59:33,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:33,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 17:59:33,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 17:59:33,627 INFO L87 Difference]: Start difference. First operand 124 states and 152 transitions. Second operand has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 17:59:33,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:33,720 INFO L93 Difference]: Finished difference Result 161 states and 200 transitions. [2024-09-12 17:59:33,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 17:59:33,720 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 28 [2024-09-12 17:59:33,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:33,722 INFO L225 Difference]: With dead ends: 161 [2024-09-12 17:59:33,722 INFO L226 Difference]: Without dead ends: 160 [2024-09-12 17:59:33,722 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 17:59:33,723 INFO L434 NwaCegarLoop]: 27 mSDtfsCounter, 72 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:33,726 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 84 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:33,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-09-12 17:59:33,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 114. [2024-09-12 17:59:33,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 95 states have (on average 1.231578947368421) internal successors, (117), 101 states have internal predecessors, (117), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 17:59:33,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 134 transitions. [2024-09-12 17:59:33,749 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 134 transitions. Word has length 28 [2024-09-12 17:59:33,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:33,749 INFO L474 AbstractCegarLoop]: Abstraction has 114 states and 134 transitions. [2024-09-12 17:59:33,749 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 17:59:33,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:33,750 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 134 transitions. [2024-09-12 17:59:33,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-09-12 17:59:33,751 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:33,751 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:33,768 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-12 17:59:33,955 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-09-12 17:59:33,956 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 17:59:33,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:33,956 INFO L85 PathProgramCache]: Analyzing trace with hash -170856376, now seen corresponding path program 1 times [2024-09-12 17:59:33,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:33,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395443523] [2024-09-12 17:59:33,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:33,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:33,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:34,037 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:34,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:34,043 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 17:59:34,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:34,051 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:34,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:34,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395443523] [2024-09-12 17:59:34,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395443523] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:34,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:59:34,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 17:59:34,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978374864] [2024-09-12 17:59:34,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:34,053 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 17:59:34,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:34,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 17:59:34,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 17:59:34,055 INFO L87 Difference]: Start difference. First operand 114 states and 134 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 17:59:34,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:34,158 INFO L93 Difference]: Finished difference Result 139 states and 161 transitions. [2024-09-12 17:59:34,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 17:59:34,158 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 30 [2024-09-12 17:59:34,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:34,160 INFO L225 Difference]: With dead ends: 139 [2024-09-12 17:59:34,160 INFO L226 Difference]: Without dead ends: 110 [2024-09-12 17:59:34,160 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 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 17:59:34,161 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 11 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:34,163 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 94 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:34,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-09-12 17:59:34,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 105. [2024-09-12 17:59:34,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 87 states have (on average 1.2413793103448276) internal successors, (108), 93 states have internal predecessors, (108), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 17:59:34,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 123 transitions. [2024-09-12 17:59:34,184 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 123 transitions. Word has length 30 [2024-09-12 17:59:34,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:34,184 INFO L474 AbstractCegarLoop]: Abstraction has 105 states and 123 transitions. [2024-09-12 17:59:34,185 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 17:59:34,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:34,185 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 123 transitions. [2024-09-12 17:59:34,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-09-12 17:59:34,187 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:34,188 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:34,188 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-09-12 17:59:34,188 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 17:59:34,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:34,189 INFO L85 PathProgramCache]: Analyzing trace with hash 767016671, now seen corresponding path program 1 times [2024-09-12 17:59:34,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:34,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690650170] [2024-09-12 17:59:34,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:34,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:34,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:34,313 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:34,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:34,315 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-09-12 17:59:34,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:34,322 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:34,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:34,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690650170] [2024-09-12 17:59:34,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690650170] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:34,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61978671] [2024-09-12 17:59:34,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:34,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:34,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:34,325 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 17:59:34,326 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 17:59:34,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:34,370 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 17:59:34,371 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:34,496 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:34,496 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:34,584 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:34,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [61978671] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:34,584 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:34,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 13 [2024-09-12 17:59:34,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049534343] [2024-09-12 17:59:34,585 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:34,585 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 17:59:34,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:34,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 17:59:34,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-09-12 17:59:34,586 INFO L87 Difference]: Start difference. First operand 105 states and 123 transitions. Second operand has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 12 states have internal predecessors, (64), 6 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 17:59:34,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:34,865 INFO L93 Difference]: Finished difference Result 153 states and 178 transitions. [2024-09-12 17:59:34,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 17:59:34,865 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 12 states have internal predecessors, (64), 6 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 36 [2024-09-12 17:59:34,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:34,867 INFO L225 Difference]: With dead ends: 153 [2024-09-12 17:59:34,867 INFO L226 Difference]: Without dead ends: 119 [2024-09-12 17:59:34,868 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 71 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2024-09-12 17:59:34,868 INFO L434 NwaCegarLoop]: 18 mSDtfsCounter, 65 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:34,869 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 127 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:59:34,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-09-12 17:59:34,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 109. [2024-09-12 17:59:34,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 90 states have (on average 1.2) internal successors, (108), 96 states have internal predecessors, (108), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 17:59:34,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 123 transitions. [2024-09-12 17:59:34,887 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 123 transitions. Word has length 36 [2024-09-12 17:59:34,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:34,888 INFO L474 AbstractCegarLoop]: Abstraction has 109 states and 123 transitions. [2024-09-12 17:59:34,888 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 12 states have internal predecessors, (64), 6 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 17:59:34,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:34,888 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 123 transitions. [2024-09-12 17:59:34,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-09-12 17:59:34,889 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:34,890 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:34,906 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 17:59:35,093 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:35,094 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 17:59:35,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:35,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1419882992, now seen corresponding path program 2 times [2024-09-12 17:59:35,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:35,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100949265] [2024-09-12 17:59:35,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:35,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:35,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:35,178 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:35,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:35,180 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:35,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:35,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100949265] [2024-09-12 17:59:35,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100949265] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:35,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244709305] [2024-09-12 17:59:35,181 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 17:59:35,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:35,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:35,183 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 17:59:35,185 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 17:59:35,231 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 17:59:35,232 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:35,232 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 17:59:35,234 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:35,289 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:35,289 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:35,382 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:35,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1244709305] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:35,383 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:35,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-09-12 17:59:35,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153142485] [2024-09-12 17:59:35,383 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:35,383 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 17:59:35,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:35,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 17:59:35,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-09-12 17:59:35,385 INFO L87 Difference]: Start difference. First operand 109 states and 123 transitions. Second operand has 13 states, 12 states have (on average 6.833333333333333) internal successors, (82), 13 states have internal predecessors, (82), 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 17:59:35,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:35,515 INFO L93 Difference]: Finished difference Result 317 states and 387 transitions. [2024-09-12 17:59:35,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 17:59:35,516 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.833333333333333) internal successors, (82), 13 states have internal predecessors, (82), 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 39 [2024-09-12 17:59:35,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:35,518 INFO L225 Difference]: With dead ends: 317 [2024-09-12 17:59:35,518 INFO L226 Difference]: Without dead ends: 315 [2024-09-12 17:59:35,519 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-09-12 17:59:35,519 INFO L434 NwaCegarLoop]: 47 mSDtfsCounter, 153 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:35,520 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 246 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:35,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2024-09-12 17:59:35,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 145. [2024-09-12 17:59:35,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 126 states have (on average 1.1904761904761905) internal successors, (150), 132 states have internal predecessors, (150), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 17:59:35,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 165 transitions. [2024-09-12 17:59:35,551 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 165 transitions. Word has length 39 [2024-09-12 17:59:35,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:35,552 INFO L474 AbstractCegarLoop]: Abstraction has 145 states and 165 transitions. [2024-09-12 17:59:35,552 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.833333333333333) internal successors, (82), 13 states have internal predecessors, (82), 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 17:59:35,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:35,552 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 165 transitions. [2024-09-12 17:59:35,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-09-12 17:59:35,553 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:35,553 INFO L216 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:35,569 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 17:59:35,754 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-09-12 17:59:35,754 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 17:59:35,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:35,755 INFO L85 PathProgramCache]: Analyzing trace with hash 680099700, now seen corresponding path program 1 times [2024-09-12 17:59:35,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:35,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669131860] [2024-09-12 17:59:35,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:35,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:35,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:35,829 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:35,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:35,831 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-09-12 17:59:35,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:35,835 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 17:59:35,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:35,838 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-09-12 17:59:35,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:35,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669131860] [2024-09-12 17:59:35,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669131860] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:35,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599971397] [2024-09-12 17:59:35,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:35,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:35,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:35,841 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 17:59:35,843 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 17:59:35,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:35,888 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 17:59:35,890 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:35,915 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-09-12 17:59:35,915 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 17:59:35,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1599971397] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:35,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 17:59:35,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-09-12 17:59:35,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412265130] [2024-09-12 17:59:35,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:35,916 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 17:59:35,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:35,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 17:59:35,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 17:59:35,917 INFO L87 Difference]: Start difference. First operand 145 states and 165 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 17:59:35,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:35,950 INFO L93 Difference]: Finished difference Result 146 states and 165 transitions. [2024-09-12 17:59:35,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 17:59:35,951 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 48 [2024-09-12 17:59:35,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:35,952 INFO L225 Difference]: With dead ends: 146 [2024-09-12 17:59:35,952 INFO L226 Difference]: Without dead ends: 145 [2024-09-12 17:59:35,952 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 17:59:35,953 INFO L434 NwaCegarLoop]: 44 mSDtfsCounter, 5 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:35,953 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 104 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 17:59:35,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-09-12 17:59:35,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 144. [2024-09-12 17:59:35,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 126 states have (on average 1.1746031746031746) internal successors, (148), 131 states have internal predecessors, (148), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 17:59:35,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 163 transitions. [2024-09-12 17:59:35,977 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 163 transitions. Word has length 48 [2024-09-12 17:59:35,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:35,978 INFO L474 AbstractCegarLoop]: Abstraction has 144 states and 163 transitions. [2024-09-12 17:59:35,978 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 17:59:35,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:35,978 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 163 transitions. [2024-09-12 17:59:35,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-09-12 17:59:35,979 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:35,979 INFO L216 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:35,996 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:36,183 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-09-12 17:59:36,184 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 17:59:36,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:36,184 INFO L85 PathProgramCache]: Analyzing trace with hash -391745677, now seen corresponding path program 1 times [2024-09-12 17:59:36,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:36,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624439786] [2024-09-12 17:59:36,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:36,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:36,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:36,223 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:36,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:36,226 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-09-12 17:59:36,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:36,228 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 17:59:36,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:36,231 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-09-12 17:59:36,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:36,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624439786] [2024-09-12 17:59:36,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624439786] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:36,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1913608596] [2024-09-12 17:59:36,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:36,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:36,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:36,233 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 17:59:36,238 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 17:59:36,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:36,284 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 17:59:36,285 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:36,314 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-09-12 17:59:36,314 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:36,359 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-09-12 17:59:36,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1913608596] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:36,360 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:36,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-09-12 17:59:36,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657250314] [2024-09-12 17:59:36,360 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:36,360 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 17:59:36,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:36,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 17:59:36,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 17:59:36,362 INFO L87 Difference]: Start difference. First operand 144 states and 163 transitions. Second operand has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 17:59:36,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:36,416 INFO L93 Difference]: Finished difference Result 195 states and 225 transitions. [2024-09-12 17:59:36,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 17:59:36,416 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 49 [2024-09-12 17:59:36,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:36,418 INFO L225 Difference]: With dead ends: 195 [2024-09-12 17:59:36,419 INFO L226 Difference]: Without dead ends: 194 [2024-09-12 17:59:36,419 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 17:59:36,420 INFO L434 NwaCegarLoop]: 37 mSDtfsCounter, 11 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:36,420 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 148 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 17:59:36,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-09-12 17:59:36,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 186. [2024-09-12 17:59:36,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 164 states have (on average 1.1951219512195121) internal successors, (196), 169 states have internal predecessors, (196), 12 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 17:59:36,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 219 transitions. [2024-09-12 17:59:36,452 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 219 transitions. Word has length 49 [2024-09-12 17:59:36,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:36,453 INFO L474 AbstractCegarLoop]: Abstraction has 186 states and 219 transitions. [2024-09-12 17:59:36,453 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 17:59:36,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:36,453 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 219 transitions. [2024-09-12 17:59:36,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-09-12 17:59:36,454 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:36,454 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:36,471 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-12 17:59:36,658 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:36,659 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 17:59:36,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:36,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1463823851, now seen corresponding path program 2 times [2024-09-12 17:59:36,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:36,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869104789] [2024-09-12 17:59:36,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:36,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:36,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:36,760 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:36,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:36,763 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-09-12 17:59:36,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:36,766 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 17:59:36,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:36,769 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 17:59:36,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:36,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869104789] [2024-09-12 17:59:36,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869104789] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:36,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654489775] [2024-09-12 17:59:36,769 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 17:59:36,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:36,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:36,772 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 17:59:36,773 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 17:59:36,819 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 17:59:36,820 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:36,821 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 17:59:36,822 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:36,890 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 14 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 17:59:36,890 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:36,997 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 14 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 17:59:36,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [654489775] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:36,998 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:36,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 10 [2024-09-12 17:59:36,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009161696] [2024-09-12 17:59:36,998 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:36,999 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 17:59:36,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:36,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 17:59:36,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-09-12 17:59:36,999 INFO L87 Difference]: Start difference. First operand 186 states and 219 transitions. Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 8 states have internal predecessors, (57), 4 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 17:59:37,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:37,084 INFO L93 Difference]: Finished difference Result 193 states and 224 transitions. [2024-09-12 17:59:37,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 17:59:37,084 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 8 states have internal predecessors, (57), 4 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 55 [2024-09-12 17:59:37,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:37,086 INFO L225 Difference]: With dead ends: 193 [2024-09-12 17:59:37,086 INFO L226 Difference]: Without dead ends: 190 [2024-09-12 17:59:37,086 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 109 SyntacticMatches, 7 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-09-12 17:59:37,087 INFO L434 NwaCegarLoop]: 39 mSDtfsCounter, 16 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:37,087 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 215 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:37,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-09-12 17:59:37,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2024-09-12 17:59:37,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 167 states have (on average 1.1796407185628743) internal successors, (197), 172 states have internal predecessors, (197), 12 states have call successors, (12), 6 states have call predecessors, (12), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 17:59:37,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 220 transitions. [2024-09-12 17:59:37,111 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 220 transitions. Word has length 55 [2024-09-12 17:59:37,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:37,111 INFO L474 AbstractCegarLoop]: Abstraction has 190 states and 220 transitions. [2024-09-12 17:59:37,111 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 8 states have internal predecessors, (57), 4 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 17:59:37,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:37,112 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 220 transitions. [2024-09-12 17:59:37,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-09-12 17:59:37,112 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:37,113 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:37,129 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 17:59:37,313 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:37,314 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 17:59:37,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:37,314 INFO L85 PathProgramCache]: Analyzing trace with hash -894707215, now seen corresponding path program 1 times [2024-09-12 17:59:37,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:37,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544410391] [2024-09-12 17:59:37,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:37,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:37,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:37,402 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:37,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:37,405 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-09-12 17:59:37,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:37,408 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 17:59:37,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:37,413 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 17:59:37,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:37,415 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 4 proven. 25 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 17:59:37,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:37,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544410391] [2024-09-12 17:59:37,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544410391] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:37,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662001908] [2024-09-12 17:59:37,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:37,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:37,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:37,418 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 17:59:37,419 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 17:59:37,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:37,466 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 17:59:37,467 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:37,517 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 10 proven. 19 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 17:59:37,517 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:37,607 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 10 proven. 19 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 17:59:37,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1662001908] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:37,608 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:37,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2024-09-12 17:59:37,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086707615] [2024-09-12 17:59:37,608 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:37,609 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 17:59:37,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:37,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 17:59:37,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=38, Unknown=0, NotChecked=0, Total=72 [2024-09-12 17:59:37,610 INFO L87 Difference]: Start difference. First operand 190 states and 220 transitions. Second operand has 9 states, 8 states have (on average 10.625) internal successors, (85), 9 states have internal predecessors, (85), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 17:59:37,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:37,730 INFO L93 Difference]: Finished difference Result 241 states and 280 transitions. [2024-09-12 17:59:37,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 17:59:37,731 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.625) internal successors, (85), 9 states have internal predecessors, (85), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 59 [2024-09-12 17:59:37,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:37,733 INFO L225 Difference]: With dead ends: 241 [2024-09-12 17:59:37,733 INFO L226 Difference]: Without dead ends: 240 [2024-09-12 17:59:37,733 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 123 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=38, Unknown=0, NotChecked=0, Total=72 [2024-09-12 17:59:37,734 INFO L434 NwaCegarLoop]: 33 mSDtfsCounter, 61 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:37,734 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 118 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:37,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2024-09-12 17:59:37,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 220. [2024-09-12 17:59:37,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 193 states have (on average 1.1761658031088082) internal successors, (227), 198 states have internal predecessors, (227), 16 states have call successors, (16), 6 states have call predecessors, (16), 5 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-09-12 17:59:37,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 258 transitions. [2024-09-12 17:59:37,778 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 258 transitions. Word has length 59 [2024-09-12 17:59:37,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:37,779 INFO L474 AbstractCegarLoop]: Abstraction has 220 states and 258 transitions. [2024-09-12 17:59:37,779 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.625) internal successors, (85), 9 states have internal predecessors, (85), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 17:59:37,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:37,780 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 258 transitions. [2024-09-12 17:59:37,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-09-12 17:59:37,781 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:37,781 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:37,797 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:37,981 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-12 17:59:37,981 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 17:59:37,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:37,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1742257514, now seen corresponding path program 3 times [2024-09-12 17:59:37,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:37,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133412076] [2024-09-12 17:59:37,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:37,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:37,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:38,116 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:38,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:38,119 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-09-12 17:59:38,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:38,123 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 17:59:38,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:38,127 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 17:59:38,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:38,129 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 23 proven. 26 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 17:59:38,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:38,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133412076] [2024-09-12 17:59:38,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133412076] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:38,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141387096] [2024-09-12 17:59:38,130 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 17:59:38,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:38,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:38,133 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 17:59:38,134 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 17:59:38,181 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-09-12 17:59:38,182 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:38,183 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 17:59:38,184 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:38,339 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 39 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 17:59:38,339 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:38,442 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 39 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 17:59:38,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [141387096] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:38,443 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:38,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2024-09-12 17:59:38,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300011482] [2024-09-12 17:59:38,443 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:38,444 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 17:59:38,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:38,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 17:59:38,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2024-09-12 17:59:38,445 INFO L87 Difference]: Start difference. First operand 220 states and 258 transitions. Second operand has 17 states, 17 states have (on average 6.294117647058823) internal successors, (107), 17 states have internal predecessors, (107), 10 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 17:59:38,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:38,742 INFO L93 Difference]: Finished difference Result 341 states and 399 transitions. [2024-09-12 17:59:38,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-12 17:59:38,743 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.294117647058823) internal successors, (107), 17 states have internal predecessors, (107), 10 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 68 [2024-09-12 17:59:38,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:38,745 INFO L225 Difference]: With dead ends: 341 [2024-09-12 17:59:38,746 INFO L226 Difference]: Without dead ends: 240 [2024-09-12 17:59:38,747 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 134 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=224, Invalid=588, Unknown=0, NotChecked=0, Total=812 [2024-09-12 17:59:38,748 INFO L434 NwaCegarLoop]: 29 mSDtfsCounter, 57 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:38,749 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 190 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:38,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2024-09-12 17:59:38,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 220. [2024-09-12 17:59:38,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 193 states have (on average 1.16580310880829) internal successors, (225), 198 states have internal predecessors, (225), 16 states have call successors, (16), 6 states have call predecessors, (16), 5 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-09-12 17:59:38,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 256 transitions. [2024-09-12 17:59:38,776 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 256 transitions. Word has length 68 [2024-09-12 17:59:38,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:38,776 INFO L474 AbstractCegarLoop]: Abstraction has 220 states and 256 transitions. [2024-09-12 17:59:38,776 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.294117647058823) internal successors, (107), 17 states have internal predecessors, (107), 10 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 17:59:38,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:38,777 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 256 transitions. [2024-09-12 17:59:38,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-09-12 17:59:38,777 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:38,777 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:38,793 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-09-12 17:59:38,978 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-12 17:59:38,978 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 17:59:38,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:38,979 INFO L85 PathProgramCache]: Analyzing trace with hash -746937242, now seen corresponding path program 3 times [2024-09-12 17:59:38,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:38,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825993056] [2024-09-12 17:59:38,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:38,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:38,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:39,157 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:39,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:39,160 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:39,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:39,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825993056] [2024-09-12 17:59:39,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825993056] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:39,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650463418] [2024-09-12 17:59:39,160 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 17:59:39,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:39,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:39,162 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 17:59:39,164 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 17:59:39,223 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-09-12 17:59:39,223 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:39,224 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 17:59:39,226 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:39,309 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:39,310 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:39,559 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:39,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [650463418] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:39,560 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:39,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2024-09-12 17:59:39,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733143011] [2024-09-12 17:59:39,560 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:39,560 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-09-12 17:59:39,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:39,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-09-12 17:59:39,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2024-09-12 17:59:39,562 INFO L87 Difference]: Start difference. First operand 220 states and 256 transitions. Second operand has 25 states, 24 states have (on average 6.416666666666667) internal successors, (154), 25 states have internal predecessors, (154), 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 17:59:39,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:39,912 INFO L93 Difference]: Finished difference Result 1143 states and 1432 transitions. [2024-09-12 17:59:39,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-09-12 17:59:39,913 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 6.416666666666667) internal successors, (154), 25 states have internal predecessors, (154), 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 75 [2024-09-12 17:59:39,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:39,920 INFO L225 Difference]: With dead ends: 1143 [2024-09-12 17:59:39,920 INFO L226 Difference]: Without dead ends: 1141 [2024-09-12 17:59:39,921 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2024-09-12 17:59:39,921 INFO L434 NwaCegarLoop]: 62 mSDtfsCounter, 382 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:39,921 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 492 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:59:39,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1141 states. [2024-09-12 17:59:39,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1141 to 292. [2024-09-12 17:59:39,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 265 states have (on average 1.1660377358490566) internal successors, (309), 270 states have internal predecessors, (309), 16 states have call successors, (16), 6 states have call predecessors, (16), 5 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-09-12 17:59:39,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 340 transitions. [2024-09-12 17:59:39,989 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 340 transitions. Word has length 75 [2024-09-12 17:59:39,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:39,989 INFO L474 AbstractCegarLoop]: Abstraction has 292 states and 340 transitions. [2024-09-12 17:59:39,990 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 6.416666666666667) internal successors, (154), 25 states have internal predecessors, (154), 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 17:59:39,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:39,990 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 340 transitions. [2024-09-12 17:59:39,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-09-12 17:59:39,993 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:39,993 INFO L216 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:40,006 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:40,196 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-09-12 17:59:40,196 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 17:59:40,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:40,197 INFO L85 PathProgramCache]: Analyzing trace with hash 307359748, now seen corresponding path program 4 times [2024-09-12 17:59:40,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:40,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377810165] [2024-09-12 17:59:40,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:40,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:40,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:40,364 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:40,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:40,367 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 17:59:40,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:40,371 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-09-12 17:59:40,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:40,373 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 17:59:40,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:40,375 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 30 proven. 53 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 17:59:40,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:40,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377810165] [2024-09-12 17:59:40,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377810165] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:40,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [314572878] [2024-09-12 17:59:40,376 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 17:59:40,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:40,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:40,378 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:40,380 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-12 17:59:40,434 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 17:59:40,434 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:40,437 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 17:59:40,438 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:40,531 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 50 proven. 33 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 17:59:40,531 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:40,656 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 50 proven. 33 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 17:59:40,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [314572878] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:40,657 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:40,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 13 [2024-09-12 17:59:40,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447570756] [2024-09-12 17:59:40,657 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:40,658 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 17:59:40,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:40,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 17:59:40,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-09-12 17:59:40,659 INFO L87 Difference]: Start difference. First operand 292 states and 340 transitions. Second operand has 13 states, 13 states have (on average 7.538461538461538) internal successors, (98), 11 states have internal predecessors, (98), 6 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 17:59:40,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:40,808 INFO L93 Difference]: Finished difference Result 300 states and 345 transitions. [2024-09-12 17:59:40,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 17:59:40,809 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.538461538461538) internal successors, (98), 11 states have internal predecessors, (98), 6 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 80 [2024-09-12 17:59:40,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:40,811 INFO L225 Difference]: With dead ends: 300 [2024-09-12 17:59:40,811 INFO L226 Difference]: Without dead ends: 297 [2024-09-12 17:59:40,811 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 161 SyntacticMatches, 7 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-09-12 17:59:40,812 INFO L434 NwaCegarLoop]: 47 mSDtfsCounter, 23 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:40,812 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 311 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:40,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2024-09-12 17:59:40,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 296. [2024-09-12 17:59:40,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 268 states have (on average 1.1417910447761195) internal successors, (306), 273 states have internal predecessors, (306), 16 states have call successors, (16), 7 states have call predecessors, (16), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-09-12 17:59:40,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 337 transitions. [2024-09-12 17:59:40,863 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 337 transitions. Word has length 80 [2024-09-12 17:59:40,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:40,863 INFO L474 AbstractCegarLoop]: Abstraction has 296 states and 337 transitions. [2024-09-12 17:59:40,863 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.538461538461538) internal successors, (98), 11 states have internal predecessors, (98), 6 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 17:59:40,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:40,864 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 337 transitions. [2024-09-12 17:59:40,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-09-12 17:59:40,864 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:40,864 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:40,884 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:41,065 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-09-12 17:59:41,065 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 17:59:41,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:41,066 INFO L85 PathProgramCache]: Analyzing trace with hash 847876482, now seen corresponding path program 2 times [2024-09-12 17:59:41,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:41,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889555982] [2024-09-12 17:59:41,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:41,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:41,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:41,158 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:41,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:41,161 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 17:59:41,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:41,164 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-09-12 17:59:41,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:41,166 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 17:59:41,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:41,169 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 17:59:41,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:41,172 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 17:59:41,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:41,174 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 17:59:41,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:41,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889555982] [2024-09-12 17:59:41,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889555982] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:41,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2144141993] [2024-09-12 17:59:41,174 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 17:59:41,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:41,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:41,176 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:41,178 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-12 17:59:41,245 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 17:59:41,245 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:41,246 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 17:59:41,248 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:41,302 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 17:59:41,303 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:41,413 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 17:59:41,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2144141993] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:41,414 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:41,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-09-12 17:59:41,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147154822] [2024-09-12 17:59:41,414 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:41,415 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 17:59:41,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:41,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 17:59:41,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-09-12 17:59:41,417 INFO L87 Difference]: Start difference. First operand 296 states and 337 transitions. Second operand has 13 states, 12 states have (on average 8.666666666666666) internal successors, (104), 13 states have internal predecessors, (104), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 17:59:41,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:41,536 INFO L93 Difference]: Finished difference Result 393 states and 453 transitions. [2024-09-12 17:59:41,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 17:59:41,536 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.666666666666666) internal successors, (104), 13 states have internal predecessors, (104), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 100 [2024-09-12 17:59:41,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:41,538 INFO L225 Difference]: With dead ends: 393 [2024-09-12 17:59:41,538 INFO L226 Difference]: Without dead ends: 392 [2024-09-12 17:59:41,539 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-09-12 17:59:41,539 INFO L434 NwaCegarLoop]: 37 mSDtfsCounter, 41 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:41,539 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 164 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:41,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-09-12 17:59:41,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 374. [2024-09-12 17:59:41,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 338 states have (on average 1.165680473372781) internal successors, (394), 343 states have internal predecessors, (394), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 17:59:41,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 441 transitions. [2024-09-12 17:59:41,606 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 441 transitions. Word has length 100 [2024-09-12 17:59:41,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:41,606 INFO L474 AbstractCegarLoop]: Abstraction has 374 states and 441 transitions. [2024-09-12 17:59:41,607 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.666666666666666) internal successors, (104), 13 states have internal predecessors, (104), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 17:59:41,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:41,607 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 441 transitions. [2024-09-12 17:59:41,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-09-12 17:59:41,608 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:41,608 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:41,625 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:41,809 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:41,809 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 17:59:41,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:41,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1774120164, now seen corresponding path program 5 times [2024-09-12 17:59:41,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:41,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593068591] [2024-09-12 17:59:41,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:41,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:41,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:41,979 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:41,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:41,981 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 17:59:41,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:41,983 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-09-12 17:59:41,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:41,986 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 17:59:41,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:41,988 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 17:59:41,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:41,990 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 17:59:41,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:41,992 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 78 proven. 76 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 17:59:41,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:41,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593068591] [2024-09-12 17:59:41,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593068591] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:41,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1353613471] [2024-09-12 17:59:41,993 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 17:59:41,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:41,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:41,994 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:41,996 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-12 17:59:42,066 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2024-09-12 17:59:42,066 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:42,067 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 17:59:42,068 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:42,309 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 110 proven. 44 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 17:59:42,309 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:42,485 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 110 proven. 44 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 17:59:42,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1353613471] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:42,485 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:42,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 23 [2024-09-12 17:59:42,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130749179] [2024-09-12 17:59:42,486 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:42,486 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-09-12 17:59:42,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:42,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-09-12 17:59:42,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=376, Unknown=0, NotChecked=0, Total=506 [2024-09-12 17:59:42,488 INFO L87 Difference]: Start difference. First operand 374 states and 441 transitions. Second operand has 23 states, 23 states have (on average 6.565217391304348) internal successors, (151), 23 states have internal predecessors, (151), 14 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 17:59:42,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:42,981 INFO L93 Difference]: Finished difference Result 562 states and 663 transitions. [2024-09-12 17:59:42,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-09-12 17:59:42,982 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 6.565217391304348) internal successors, (151), 23 states have internal predecessors, (151), 14 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Word has length 106 [2024-09-12 17:59:42,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:42,985 INFO L225 Difference]: With dead ends: 562 [2024-09-12 17:59:42,985 INFO L226 Difference]: Without dead ends: 404 [2024-09-12 17:59:42,987 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 208 SyntacticMatches, 7 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 497 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=486, Invalid=1320, Unknown=0, NotChecked=0, Total=1806 [2024-09-12 17:59:42,989 INFO L434 NwaCegarLoop]: 39 mSDtfsCounter, 119 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:42,989 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 241 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:59:42,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2024-09-12 17:59:43,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 374. [2024-09-12 17:59:43,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 338 states have (on average 1.1597633136094674) internal successors, (392), 343 states have internal predecessors, (392), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 17:59:43,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 439 transitions. [2024-09-12 17:59:43,058 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 439 transitions. Word has length 106 [2024-09-12 17:59:43,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:43,058 INFO L474 AbstractCegarLoop]: Abstraction has 374 states and 439 transitions. [2024-09-12 17:59:43,059 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 6.565217391304348) internal successors, (151), 23 states have internal predecessors, (151), 14 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 17:59:43,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:43,059 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 439 transitions. [2024-09-12 17:59:43,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-09-12 17:59:43,062 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:43,062 INFO L216 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:43,080 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:43,266 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:43,267 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 17:59:43,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:43,268 INFO L85 PathProgramCache]: Analyzing trace with hash -102098990, now seen corresponding path program 6 times [2024-09-12 17:59:43,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:43,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4558235] [2024-09-12 17:59:43,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:43,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:43,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:43,501 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:43,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:43,504 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 17:59:43,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:43,506 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-09-12 17:59:43,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:43,509 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-09-12 17:59:43,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:43,514 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 17:59:43,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:43,517 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-09-12 17:59:43,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:43,519 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 80 proven. 132 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 17:59:43,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:43,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4558235] [2024-09-12 17:59:43,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4558235] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:43,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996851096] [2024-09-12 17:59:43,520 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 17:59:43,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:43,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:43,522 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:43,526 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-12 17:59:43,596 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-09-12 17:59:43,596 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:43,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 17:59:43,599 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:43,735 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 112 proven. 100 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 17:59:43,735 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:43,931 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 112 proven. 100 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 17:59:43,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1996851096] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:43,932 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:43,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 15 [2024-09-12 17:59:43,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865115051] [2024-09-12 17:59:43,932 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:43,932 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 17:59:43,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:43,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 17:59:43,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2024-09-12 17:59:43,933 INFO L87 Difference]: Start difference. First operand 374 states and 439 transitions. Second operand has 15 states, 15 states have (on average 8.4) internal successors, (126), 13 states have internal predecessors, (126), 8 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 17:59:44,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:44,098 INFO L93 Difference]: Finished difference Result 382 states and 444 transitions. [2024-09-12 17:59:44,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 17:59:44,098 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 8.4) internal successors, (126), 13 states have internal predecessors, (126), 8 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 118 [2024-09-12 17:59:44,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:44,101 INFO L225 Difference]: With dead ends: 382 [2024-09-12 17:59:44,101 INFO L226 Difference]: Without dead ends: 379 [2024-09-12 17:59:44,101 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 237 SyntacticMatches, 13 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-09-12 17:59:44,102 INFO L434 NwaCegarLoop]: 55 mSDtfsCounter, 24 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:44,102 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 375 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:44,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-09-12 17:59:44,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 378. [2024-09-12 17:59:44,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 341 states have (on average 1.1466275659824048) internal successors, (391), 346 states have internal predecessors, (391), 24 states have call successors, (24), 8 states have call predecessors, (24), 7 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 17:59:44,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 438 transitions. [2024-09-12 17:59:44,172 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 438 transitions. Word has length 118 [2024-09-12 17:59:44,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:44,172 INFO L474 AbstractCegarLoop]: Abstraction has 378 states and 438 transitions. [2024-09-12 17:59:44,172 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.4) internal successors, (126), 13 states have internal predecessors, (126), 8 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 17:59:44,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:44,173 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 438 transitions. [2024-09-12 17:59:44,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-09-12 17:59:44,174 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:44,174 INFO L216 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:44,190 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:44,375 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-09-12 17:59:44,375 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 17:59:44,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:44,375 INFO L85 PathProgramCache]: Analyzing trace with hash 967929301, now seen corresponding path program 2 times [2024-09-12 17:59:44,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:44,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331694725] [2024-09-12 17:59:44,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:44,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:44,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:44,528 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:44,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:44,530 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 17:59:44,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:44,533 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-09-12 17:59:44,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:44,536 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-09-12 17:59:44,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:44,538 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 17:59:44,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:44,539 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-09-12 17:59:44,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:44,542 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-09-12 17:59:44,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:44,544 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-09-12 17:59:44,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:44,547 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-09-12 17:59:44,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:44,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331694725] [2024-09-12 17:59:44,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331694725] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:44,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1128836757] [2024-09-12 17:59:44,548 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 17:59:44,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:44,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:44,550 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:44,551 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-09-12 17:59:44,618 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 17:59:44,619 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:44,620 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 17:59:44,622 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:44,780 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 102 proven. 165 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 17:59:44,780 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:44,989 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 102 proven. 165 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 17:59:44,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1128836757] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:44,989 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:44,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 22 [2024-09-12 17:59:44,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555098711] [2024-09-12 17:59:44,990 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:44,990 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-09-12 17:59:44,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:44,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-09-12 17:59:44,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=308, Unknown=0, NotChecked=0, Total=506 [2024-09-12 17:59:44,991 INFO L87 Difference]: Start difference. First operand 378 states and 438 transitions. Second operand has 23 states, 22 states have (on average 11.0) internal successors, (242), 23 states have internal predecessors, (242), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-09-12 17:59:45,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:45,321 INFO L93 Difference]: Finished difference Result 582 states and 688 transitions. [2024-09-12 17:59:45,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-09-12 17:59:45,322 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 11.0) internal successors, (242), 23 states have internal predecessors, (242), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Word has length 135 [2024-09-12 17:59:45,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:45,325 INFO L225 Difference]: With dead ends: 582 [2024-09-12 17:59:45,325 INFO L226 Difference]: Without dead ends: 581 [2024-09-12 17:59:45,326 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 273 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=263, Invalid=387, Unknown=0, NotChecked=0, Total=650 [2024-09-12 17:59:45,326 INFO L434 NwaCegarLoop]: 46 mSDtfsCounter, 137 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:45,326 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 345 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:59:45,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2024-09-12 17:59:45,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 516. [2024-09-12 17:59:45,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 463 states have (on average 1.1727861771058314) internal successors, (543), 468 states have internal predecessors, (543), 40 states have call successors, (40), 8 states have call predecessors, (40), 7 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-09-12 17:59:45,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 622 transitions. [2024-09-12 17:59:45,416 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 622 transitions. Word has length 135 [2024-09-12 17:59:45,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:45,416 INFO L474 AbstractCegarLoop]: Abstraction has 516 states and 622 transitions. [2024-09-12 17:59:45,417 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 11.0) internal successors, (242), 23 states have internal predecessors, (242), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-09-12 17:59:45,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:45,417 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 622 transitions. [2024-09-12 17:59:45,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-09-12 17:59:45,418 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:45,418 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:45,438 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:45,622 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:45,623 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 17:59:45,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:45,623 INFO L85 PathProgramCache]: Analyzing trace with hash -65024206, now seen corresponding path program 7 times [2024-09-12 17:59:45,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:45,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086063617] [2024-09-12 17:59:45,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:45,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:45,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:45,883 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:45,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:45,886 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 17:59:45,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:45,889 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-09-12 17:59:45,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:45,891 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-09-12 17:59:45,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:45,893 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 17:59:45,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:45,894 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-09-12 17:59:45,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:45,897 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-09-12 17:59:45,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:45,899 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-09-12 17:59:45,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:45,901 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 169 proven. 150 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 17:59:45,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:45,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086063617] [2024-09-12 17:59:45,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086063617] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:45,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99887377] [2024-09-12 17:59:45,902 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 17:59:45,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:45,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:45,904 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:45,906 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-09-12 17:59:45,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:45,974 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 17:59:45,976 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:46,288 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 237 proven. 102 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-09-12 17:59:46,289 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:46,494 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 215 proven. 102 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-09-12 17:59:46,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [99887377] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:46,495 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:46,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 16] total 26 [2024-09-12 17:59:46,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969535811] [2024-09-12 17:59:46,496 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:46,496 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-09-12 17:59:46,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:46,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-09-12 17:59:46,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=494, Unknown=0, NotChecked=0, Total=650 [2024-09-12 17:59:46,497 INFO L87 Difference]: Start difference. First operand 516 states and 622 transitions. Second operand has 26 states, 26 states have (on average 6.923076923076923) internal successors, (180), 26 states have internal predecessors, (180), 16 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2024-09-12 17:59:46,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:46,870 INFO L93 Difference]: Finished difference Result 732 states and 886 transitions. [2024-09-12 17:59:46,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-12 17:59:46,870 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 6.923076923076923) internal successors, (180), 26 states have internal predecessors, (180), 16 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) Word has length 144 [2024-09-12 17:59:46,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:46,873 INFO L225 Difference]: With dead ends: 732 [2024-09-12 17:59:46,873 INFO L226 Difference]: Without dead ends: 551 [2024-09-12 17:59:46,874 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 284 SyntacticMatches, 12 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=393, Invalid=1089, Unknown=0, NotChecked=0, Total=1482 [2024-09-12 17:59:46,875 INFO L434 NwaCegarLoop]: 49 mSDtfsCounter, 129 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:46,875 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 284 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:59:46,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2024-09-12 17:59:46,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 516. [2024-09-12 17:59:46,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 463 states have (on average 1.1706263498920086) internal successors, (542), 468 states have internal predecessors, (542), 40 states have call successors, (40), 8 states have call predecessors, (40), 7 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-09-12 17:59:46,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 621 transitions. [2024-09-12 17:59:46,944 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 621 transitions. Word has length 144 [2024-09-12 17:59:46,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:46,944 INFO L474 AbstractCegarLoop]: Abstraction has 516 states and 621 transitions. [2024-09-12 17:59:46,944 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 6.923076923076923) internal successors, (180), 26 states have internal predecessors, (180), 16 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2024-09-12 17:59:46,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:46,945 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 621 transitions. [2024-09-12 17:59:46,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-09-12 17:59:46,946 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:46,946 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:46,962 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:47,150 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,18 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:47,150 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 17:59:47,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:47,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1484557815, now seen corresponding path program 8 times [2024-09-12 17:59:47,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:47,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981196809] [2024-09-12 17:59:47,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:47,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:47,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:47,440 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:47,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:47,442 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-09-12 17:59:47,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:47,444 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-09-12 17:59:47,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:47,446 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 17:59:47,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:47,447 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-09-12 17:59:47,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:47,449 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-09-12 17:59:47,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:47,450 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 17:59:47,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:47,452 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-09-12 17:59:47,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:47,454 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 169 proven. 188 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 17:59:47,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:47,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981196809] [2024-09-12 17:59:47,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981196809] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:47,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [14754820] [2024-09-12 17:59:47,455 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 17:59:47,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:47,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:47,457 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:47,459 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-09-12 17:59:47,529 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 17:59:47,530 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:47,532 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-12 17:59:47,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:47,775 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 154 proven. 203 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 17:59:47,775 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:48,157 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 154 proven. 203 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 17:59:48,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [14754820] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:48,158 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:48,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 12, 12] total 28 [2024-09-12 17:59:48,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643864869] [2024-09-12 17:59:48,158 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:48,159 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-09-12 17:59:48,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:48,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-09-12 17:59:48,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=626, Unknown=0, NotChecked=0, Total=756 [2024-09-12 17:59:48,160 INFO L87 Difference]: Start difference. First operand 516 states and 621 transitions. Second operand has 28 states, 28 states have (on average 7.964285714285714) internal successors, (223), 27 states have internal predecessors, (223), 17 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-09-12 17:59:49,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:49,054 INFO L93 Difference]: Finished difference Result 737 states and 893 transitions. [2024-09-12 17:59:49,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-09-12 17:59:49,054 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 7.964285714285714) internal successors, (223), 27 states have internal predecessors, (223), 17 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Word has length 150 [2024-09-12 17:59:49,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:49,057 INFO L225 Difference]: With dead ends: 737 [2024-09-12 17:59:49,057 INFO L226 Difference]: Without dead ends: 560 [2024-09-12 17:59:49,058 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 298 SyntacticMatches, 17 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1664 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=866, Invalid=4104, Unknown=0, NotChecked=0, Total=4970 [2024-09-12 17:59:49,059 INFO L434 NwaCegarLoop]: 34 mSDtfsCounter, 195 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 1053 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 1093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1053 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:49,059 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 354 Invalid, 1093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1053 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 17:59:49,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-09-12 17:59:49,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 520. [2024-09-12 17:59:49,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 466 states have (on average 1.167381974248927) internal successors, (544), 471 states have internal predecessors, (544), 40 states have call successors, (40), 9 states have call predecessors, (40), 8 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-09-12 17:59:49,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 623 transitions. [2024-09-12 17:59:49,153 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 623 transitions. Word has length 150 [2024-09-12 17:59:49,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:49,153 INFO L474 AbstractCegarLoop]: Abstraction has 520 states and 623 transitions. [2024-09-12 17:59:49,153 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 7.964285714285714) internal successors, (223), 27 states have internal predecessors, (223), 17 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-09-12 17:59:49,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:49,154 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 623 transitions. [2024-09-12 17:59:49,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-09-12 17:59:49,155 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:49,155 INFO L216 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:49,172 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:49,359 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-09-12 17:59:49,359 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 17:59:49,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:49,360 INFO L85 PathProgramCache]: Analyzing trace with hash -497975214, now seen corresponding path program 4 times [2024-09-12 17:59:49,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:49,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880390540] [2024-09-12 17:59:49,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:49,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:49,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:49,846 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:49,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:49,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1518 backedges. 0 proven. 1518 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:49,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:49,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880390540] [2024-09-12 17:59:49,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880390540] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:49,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510280022] [2024-09-12 17:59:49,851 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 17:59:49,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:49,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:49,853 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:49,867 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-09-12 17:59:49,943 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 17:59:49,944 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:49,945 INFO L262 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-12 17:59:49,948 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:50,088 INFO L134 CoverageAnalysis]: Checked inductivity of 1518 backedges. 0 proven. 1518 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:50,089 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:50,776 INFO L134 CoverageAnalysis]: Checked inductivity of 1518 backedges. 0 proven. 1518 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:50,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510280022] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:50,777 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:50,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 48 [2024-09-12 17:59:50,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238213844] [2024-09-12 17:59:50,777 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:50,778 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-09-12 17:59:50,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:50,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-09-12 17:59:50,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2024-09-12 17:59:50,780 INFO L87 Difference]: Start difference. First operand 520 states and 623 transitions. Second operand has 49 states, 48 states have (on average 6.208333333333333) internal successors, (298), 49 states have internal predecessors, (298), 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 17:59:52,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:52,006 INFO L93 Difference]: Finished difference Result 4885 states and 6127 transitions. [2024-09-12 17:59:52,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-09-12 17:59:52,007 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 48 states have (on average 6.208333333333333) internal successors, (298), 49 states have internal predecessors, (298), 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 147 [2024-09-12 17:59:52,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:52,027 INFO L225 Difference]: With dead ends: 4885 [2024-09-12 17:59:52,027 INFO L226 Difference]: Without dead ends: 4883 [2024-09-12 17:59:52,029 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2024-09-12 17:59:52,030 INFO L434 NwaCegarLoop]: 94 mSDtfsCounter, 1015 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1061 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:52,030 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1061 Valid, 905 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 17:59:52,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4883 states. [2024-09-12 17:59:52,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4883 to 664. [2024-09-12 17:59:52,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 610 states have (on average 1.1672131147540983) internal successors, (712), 615 states have internal predecessors, (712), 40 states have call successors, (40), 9 states have call predecessors, (40), 8 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-09-12 17:59:52,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 791 transitions. [2024-09-12 17:59:52,263 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 791 transitions. Word has length 147 [2024-09-12 17:59:52,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:52,264 INFO L474 AbstractCegarLoop]: Abstraction has 664 states and 791 transitions. [2024-09-12 17:59:52,265 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 48 states have (on average 6.208333333333333) internal successors, (298), 49 states have internal predecessors, (298), 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 17:59:52,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:52,265 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 791 transitions. [2024-09-12 17:59:52,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-09-12 17:59:52,266 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:52,267 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:52,283 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:52,470 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-09-12 17:59:52,471 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 17:59:52,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:52,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1144149739, now seen corresponding path program 9 times [2024-09-12 17:59:52,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:52,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044006662] [2024-09-12 17:59:52,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:52,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:52,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:52,796 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:52,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:52,798 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 17:59:52,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:52,800 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 17:59:52,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:52,802 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-09-12 17:59:52,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:52,804 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-09-12 17:59:52,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:52,805 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-09-12 17:59:52,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:52,807 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-09-12 17:59:52,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:52,808 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-09-12 17:59:52,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:52,809 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-09-12 17:59:52,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:52,812 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 228 proven. 240 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 17:59:52,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:52,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044006662] [2024-09-12 17:59:52,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044006662] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:52,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1483564366] [2024-09-12 17:59:52,812 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 17:59:52,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:52,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:52,814 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:52,815 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-09-12 17:59:52,902 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-09-12 17:59:52,902 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:52,904 INFO L262 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-09-12 17:59:52,906 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:53,287 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 284 proven. 184 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 17:59:53,287 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:53,519 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 284 proven. 184 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 17:59:53,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1483564366] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:53,519 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:53,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 31 [2024-09-12 17:59:53,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653970232] [2024-09-12 17:59:53,519 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:53,520 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-09-12 17:59:53,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:53,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-09-12 17:59:53,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=707, Unknown=0, NotChecked=0, Total=930 [2024-09-12 17:59:53,521 INFO L87 Difference]: Start difference. First operand 664 states and 791 transitions. Second operand has 31 states, 31 states have (on average 6.645161290322581) internal successors, (206), 31 states have internal predecessors, (206), 19 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-09-12 17:59:54,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:54,076 INFO L93 Difference]: Finished difference Result 886 states and 1066 transitions. [2024-09-12 17:59:54,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-09-12 17:59:54,077 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 6.645161290322581) internal successors, (206), 31 states have internal predecessors, (206), 19 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Word has length 169 [2024-09-12 17:59:54,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:54,080 INFO L225 Difference]: With dead ends: 886 [2024-09-12 17:59:54,080 INFO L226 Difference]: Without dead ends: 709 [2024-09-12 17:59:54,081 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 330 SyntacticMatches, 16 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 644 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=616, Invalid=1640, Unknown=0, NotChecked=0, Total=2256 [2024-09-12 17:59:54,082 INFO L434 NwaCegarLoop]: 59 mSDtfsCounter, 136 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:54,082 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 420 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:59:54,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2024-09-12 17:59:54,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 664. [2024-09-12 17:59:54,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 610 states have (on average 1.1655737704918032) internal successors, (711), 615 states have internal predecessors, (711), 40 states have call successors, (40), 9 states have call predecessors, (40), 8 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-09-12 17:59:54,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 790 transitions. [2024-09-12 17:59:54,280 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 790 transitions. Word has length 169 [2024-09-12 17:59:54,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:54,281 INFO L474 AbstractCegarLoop]: Abstraction has 664 states and 790 transitions. [2024-09-12 17:59:54,281 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 6.645161290322581) internal successors, (206), 31 states have internal predecessors, (206), 19 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-09-12 17:59:54,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:54,281 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 790 transitions. [2024-09-12 17:59:54,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-09-12 17:59:54,283 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:54,284 INFO L216 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:54,300 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:54,487 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-09-12 17:59:54,488 INFO L399 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 17:59:54,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:54,488 INFO L85 PathProgramCache]: Analyzing trace with hash 843957236, now seen corresponding path program 10 times [2024-09-12 17:59:54,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:54,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831519964] [2024-09-12 17:59:54,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:54,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:54,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:54,798 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:54,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:54,800 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-09-12 17:59:54,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:54,801 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-09-12 17:59:54,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:54,803 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 17:59:54,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:54,805 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-09-12 17:59:54,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:54,807 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 17:59:54,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:54,809 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-09-12 17:59:54,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:54,811 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-09-12 17:59:54,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:54,812 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-09-12 17:59:54,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:54,816 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 200 proven. 318 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 17:59:54,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:54,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831519964] [2024-09-12 17:59:54,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831519964] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:54,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978821248] [2024-09-12 17:59:54,818 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 17:59:54,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:54,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:54,820 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:54,823 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-09-12 17:59:54,912 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 17:59:54,912 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:54,914 INFO L262 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-12 17:59:54,916 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:55,100 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 250 proven. 268 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 17:59:55,100 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:55,317 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 250 proven. 268 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 17:59:55,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978821248] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:55,317 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:55,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 18 [2024-09-12 17:59:55,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260586574] [2024-09-12 17:59:55,317 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:55,318 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-12 17:59:55,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:55,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-12 17:59:55,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2024-09-12 17:59:55,319 INFO L87 Difference]: Start difference. First operand 664 states and 790 transitions. Second operand has 18 states, 18 states have (on average 9.333333333333334) internal successors, (168), 16 states have internal predecessors, (168), 11 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 17:59:55,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:55,531 INFO L93 Difference]: Finished difference Result 671 states and 795 transitions. [2024-09-12 17:59:55,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 17:59:55,532 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 9.333333333333334) internal successors, (168), 16 states have internal predecessors, (168), 11 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Word has length 175 [2024-09-12 17:59:55,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:55,535 INFO L225 Difference]: With dead ends: 671 [2024-09-12 17:59:55,535 INFO L226 Difference]: Without dead ends: 668 [2024-09-12 17:59:55,535 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 356 SyntacticMatches, 17 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2024-09-12 17:59:55,536 INFO L434 NwaCegarLoop]: 67 mSDtfsCounter, 23 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:55,536 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 402 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:55,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2024-09-12 17:59:55,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 668. [2024-09-12 17:59:55,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 613 states have (on average 1.1549755301794453) internal successors, (708), 618 states have internal predecessors, (708), 40 states have call successors, (40), 10 states have call predecessors, (40), 9 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-09-12 17:59:55,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 787 transitions. [2024-09-12 17:59:55,683 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 787 transitions. Word has length 175 [2024-09-12 17:59:55,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:55,683 INFO L474 AbstractCegarLoop]: Abstraction has 668 states and 787 transitions. [2024-09-12 17:59:55,684 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 9.333333333333334) internal successors, (168), 16 states have internal predecessors, (168), 11 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 17:59:55,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:55,684 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 787 transitions. [2024-09-12 17:59:55,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-09-12 17:59:55,686 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:55,686 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:55,702 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:55,890 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-09-12 17:59:55,891 INFO L399 AbstractCegarLoop]: === Iteration 28 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 17:59:55,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:55,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1027033900, now seen corresponding path program 11 times [2024-09-12 17:59:55,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:55,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80565032] [2024-09-12 17:59:55,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:55,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:55,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:56,307 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:56,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:56,308 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-09-12 17:59:56,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:56,310 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-09-12 17:59:56,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:56,312 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 17:59:56,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:56,313 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-09-12 17:59:56,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:56,315 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 17:59:56,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:56,316 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-09-12 17:59:56,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:56,318 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-09-12 17:59:56,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:56,319 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-09-12 17:59:56,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:56,320 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-09-12 17:59:56,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:56,323 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-09-12 17:59:56,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:56,325 INFO L134 CoverageAnalysis]: Checked inductivity of 859 backedges. 373 proven. 306 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 17:59:56,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:56,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80565032] [2024-09-12 17:59:56,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80565032] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:56,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044396453] [2024-09-12 17:59:56,326 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 17:59:56,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:56,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:56,328 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:56,328 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-09-12 17:59:56,428 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-09-12 17:59:56,429 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:56,430 INFO L262 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-12 17:59:56,434 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:56,875 INFO L134 CoverageAnalysis]: Checked inductivity of 859 backedges. 445 proven. 234 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 17:59:56,875 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:57,181 INFO L134 CoverageAnalysis]: Checked inductivity of 859 backedges. 445 proven. 234 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 17:59:57,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1044396453] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:57,182 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:57,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 38 [2024-09-12 17:59:57,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107995102] [2024-09-12 17:59:57,182 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:57,183 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-09-12 17:59:57,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:57,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-09-12 17:59:57,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=340, Invalid=1066, Unknown=0, NotChecked=0, Total=1406 [2024-09-12 17:59:57,184 INFO L87 Difference]: Start difference. First operand 668 states and 787 transitions. Second operand has 38 states, 38 states have (on average 6.868421052631579) internal successors, (261), 38 states have internal predecessors, (261), 24 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 17:59:58,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:58,334 INFO L93 Difference]: Finished difference Result 995 states and 1177 transitions. [2024-09-12 17:59:58,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-09-12 17:59:58,334 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 6.868421052631579) internal successors, (261), 38 states have internal predecessors, (261), 24 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Word has length 201 [2024-09-12 17:59:58,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:58,338 INFO L225 Difference]: With dead ends: 995 [2024-09-12 17:59:58,338 INFO L226 Difference]: Without dead ends: 723 [2024-09-12 17:59:58,340 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 393 SyntacticMatches, 17 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1795 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1596, Invalid=4410, Unknown=0, NotChecked=0, Total=6006 [2024-09-12 17:59:58,340 INFO L434 NwaCegarLoop]: 64 mSDtfsCounter, 249 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:58,340 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 465 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 17:59:58,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2024-09-12 17:59:58,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 668. [2024-09-12 17:59:58,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 613 states have (on average 1.1517128874388254) internal successors, (706), 618 states have internal predecessors, (706), 40 states have call successors, (40), 10 states have call predecessors, (40), 9 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-09-12 17:59:58,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 785 transitions. [2024-09-12 17:59:58,503 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 785 transitions. Word has length 201 [2024-09-12 17:59:58,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:58,503 INFO L474 AbstractCegarLoop]: Abstraction has 668 states and 785 transitions. [2024-09-12 17:59:58,504 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 6.868421052631579) internal successors, (261), 38 states have internal predecessors, (261), 24 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 17:59:58,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:58,504 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 785 transitions. [2024-09-12 17:59:58,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-09-12 17:59:58,505 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:58,505 INFO L216 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:58,522 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-09-12 17:59:58,709 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-09-12 17:59:58,710 INFO L399 AbstractCegarLoop]: === Iteration 29 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 17:59:58,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:58,710 INFO L85 PathProgramCache]: Analyzing trace with hash -927982554, now seen corresponding path program 12 times [2024-09-12 17:59:58,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:58,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193844369] [2024-09-12 17:59:58,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:58,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:58,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:59,091 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:59,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:59,093 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 17:59:59,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:59,094 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-12 17:59:59,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:59,096 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 17:59:59,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:59,097 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-09-12 17:59:59,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:59,099 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-09-12 17:59:59,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:59,100 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-09-12 17:59:59,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:59,102 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 17:59:59,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:59,103 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 17:59:59,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:59,105 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 17:59:59,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:59,106 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-09-12 17:59:59,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:59,108 INFO L134 CoverageAnalysis]: Checked inductivity of 977 backedges. 310 proven. 487 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 17:59:59,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:59,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193844369] [2024-09-12 17:59:59,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193844369] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:59,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951190733] [2024-09-12 17:59:59,109 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 17:59:59,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:59,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:59,111 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:59,113 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-09-12 17:59:59,214 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2024-09-12 17:59:59,215 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:59,217 INFO L262 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-09-12 17:59:59,223 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:59,460 INFO L134 CoverageAnalysis]: Checked inductivity of 977 backedges. 372 proven. 425 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 17:59:59,460 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:59,800 INFO L134 CoverageAnalysis]: Checked inductivity of 977 backedges. 372 proven. 425 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 17:59:59,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951190733] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:59,800 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:59,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 20 [2024-09-12 17:59:59,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053311531] [2024-09-12 17:59:59,801 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:59,801 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-09-12 17:59:59,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:59,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-09-12 17:59:59,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2024-09-12 17:59:59,802 INFO L87 Difference]: Start difference. First operand 668 states and 785 transitions. Second operand has 20 states, 20 states have (on average 9.8) internal successors, (196), 18 states have internal predecessors, (196), 13 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 18:00:00,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:00:00,023 INFO L93 Difference]: Finished difference Result 677 states and 790 transitions. [2024-09-12 18:00:00,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-12 18:00:00,024 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 9.8) internal successors, (196), 18 states have internal predecessors, (196), 13 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 213 [2024-09-12 18:00:00,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:00:00,026 INFO L225 Difference]: With dead ends: 677 [2024-09-12 18:00:00,027 INFO L226 Difference]: Without dead ends: 674 [2024-09-12 18:00:00,027 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 432 SyntacticMatches, 23 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=125, Invalid=295, Unknown=0, NotChecked=0, Total=420 [2024-09-12 18:00:00,027 INFO L434 NwaCegarLoop]: 75 mSDtfsCounter, 28 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:00:00,027 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 532 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:00:00,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2024-09-12 18:00:00,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 672. [2024-09-12 18:00:00,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 616 states have (on average 1.1444805194805194) internal successors, (705), 621 states have internal predecessors, (705), 40 states have call successors, (40), 11 states have call predecessors, (40), 10 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-09-12 18:00:00,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 784 transitions. [2024-09-12 18:00:00,159 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 784 transitions. Word has length 213 [2024-09-12 18:00:00,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:00:00,159 INFO L474 AbstractCegarLoop]: Abstraction has 672 states and 784 transitions. [2024-09-12 18:00:00,159 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 9.8) internal successors, (196), 18 states have internal predecessors, (196), 13 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 18:00:00,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:00,160 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 784 transitions. [2024-09-12 18:00:00,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-09-12 18:00:00,161 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:00:00,161 INFO L216 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:00:00,174 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-09-12 18:00:00,361 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-09-12 18:00:00,362 INFO L399 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:00:00,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:00,362 INFO L85 PathProgramCache]: Analyzing trace with hash 595920259, now seen corresponding path program 3 times [2024-09-12 18:00:00,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:00:00,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334693092] [2024-09-12 18:00:00,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:00:00,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:00:00,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,550 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:00:00,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,551 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:00:00,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,553 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-12 18:00:00,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,554 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 18:00:00,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,556 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-09-12 18:00:00,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,557 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-09-12 18:00:00,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,559 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-09-12 18:00:00,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,560 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 18:00:00,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,561 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 18:00:00,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,563 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 18:00:00,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,564 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-09-12 18:00:00,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,565 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-09-12 18:00:00,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:00,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1057 backedges. 0 proven. 485 refuted. 0 times theorem prover too weak. 572 trivial. 0 not checked. [2024-09-12 18:00:00,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:00:00,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334693092] [2024-09-12 18:00:00,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334693092] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:00:00,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [678391085] [2024-09-12 18:00:00,568 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:00:00,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:00,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:00:00,570 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:00:00,571 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-09-12 18:00:00,630 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 18:00:00,630 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:00:00,631 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:00:00,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:00:00,771 INFO L134 CoverageAnalysis]: Checked inductivity of 1057 backedges. 62 proven. 80 refuted. 0 times theorem prover too weak. 915 trivial. 0 not checked. [2024-09-12 18:00:00,771 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:00:00,954 INFO L134 CoverageAnalysis]: Checked inductivity of 1057 backedges. 62 proven. 80 refuted. 0 times theorem prover too weak. 915 trivial. 0 not checked. [2024-09-12 18:00:00,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [678391085] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:00:00,954 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:00:00,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5] total 20 [2024-09-12 18:00:00,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728617597] [2024-09-12 18:00:00,956 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:00:00,957 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-09-12 18:00:00,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:00:00,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-09-12 18:00:00,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2024-09-12 18:00:00,958 INFO L87 Difference]: Start difference. First operand 672 states and 784 transitions. Second operand has 21 states, 20 states have (on average 7.6) internal successors, (152), 21 states have internal predecessors, (152), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 18:00:01,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:00:01,355 INFO L93 Difference]: Finished difference Result 686 states and 789 transitions. [2024-09-12 18:00:01,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-12 18:00:01,355 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 7.6) internal successors, (152), 21 states have internal predecessors, (152), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Word has length 220 [2024-09-12 18:00:01,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:00:01,358 INFO L225 Difference]: With dead ends: 686 [2024-09-12 18:00:01,359 INFO L226 Difference]: Without dead ends: 685 [2024-09-12 18:00:01,359 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 490 GetRequests, 456 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=437, Invalid=823, Unknown=0, NotChecked=0, Total=1260 [2024-09-12 18:00:01,360 INFO L434 NwaCegarLoop]: 28 mSDtfsCounter, 257 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:00:01,360 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 224 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:00:01,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2024-09-12 18:00:01,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 671. [2024-09-12 18:00:01,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 616 states have (on average 1.1185064935064934) internal successors, (689), 620 states have internal predecessors, (689), 40 states have call successors, (40), 11 states have call predecessors, (40), 10 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-09-12 18:00:01,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 768 transitions. [2024-09-12 18:00:01,507 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 768 transitions. Word has length 220 [2024-09-12 18:00:01,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:00:01,507 INFO L474 AbstractCegarLoop]: Abstraction has 671 states and 768 transitions. [2024-09-12 18:00:01,508 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 7.6) internal successors, (152), 21 states have internal predecessors, (152), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 18:00:01,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:01,508 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 768 transitions. [2024-09-12 18:00:01,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2024-09-12 18:00:01,509 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:00:01,509 INFO L216 NwaCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:00:01,520 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-09-12 18:00:01,709 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,25 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:01,710 INFO L399 AbstractCegarLoop]: === Iteration 31 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:00:01,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:01,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1380078214, now seen corresponding path program 13 times [2024-09-12 18:00:01,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:00:01,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911384548] [2024-09-12 18:00:01,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:00:01,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:00:01,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:02,228 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:00:02,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:02,230 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:00:02,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:02,232 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-12 18:00:02,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:02,233 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 18:00:02,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:02,235 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-09-12 18:00:02,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:02,236 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-09-12 18:00:02,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:02,238 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-09-12 18:00:02,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:02,240 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 18:00:02,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:02,241 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 18:00:02,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:02,243 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 18:00:02,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:02,244 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-09-12 18:00:02,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:02,248 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-09-12 18:00:02,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:02,249 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-09-12 18:00:02,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:02,252 INFO L134 CoverageAnalysis]: Checked inductivity of 1258 backedges. 554 proven. 440 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-09-12 18:00:02,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:00:02,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911384548] [2024-09-12 18:00:02,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911384548] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:00:02,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [775717219] [2024-09-12 18:00:02,254 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 18:00:02,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:02,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:00:02,256 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:00:02,258 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-09-12 18:00:02,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:02,352 INFO L262 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-09-12 18:00:02,355 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:00:02,867 INFO L134 CoverageAnalysis]: Checked inductivity of 1258 backedges. 682 proven. 352 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-09-12 18:00:02,867 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:00:03,231 INFO L134 CoverageAnalysis]: Checked inductivity of 1258 backedges. 640 proven. 352 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2024-09-12 18:00:03,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [775717219] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:00:03,231 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:00:03,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 26, 26] total 41 [2024-09-12 18:00:03,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926113361] [2024-09-12 18:00:03,232 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:00:03,232 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-09-12 18:00:03,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:00:03,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-09-12 18:00:03,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=381, Invalid=1259, Unknown=0, NotChecked=0, Total=1640 [2024-09-12 18:00:03,234 INFO L87 Difference]: Start difference. First operand 671 states and 768 transitions. Second operand has 41 states, 41 states have (on average 7.073170731707317) internal successors, (290), 41 states have internal predecessors, (290), 26 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 26 states have call predecessors, (27), 26 states have call successors, (27) [2024-09-12 18:00:04,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:00:04,036 INFO L93 Difference]: Finished difference Result 911 states and 1054 transitions. [2024-09-12 18:00:04,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-09-12 18:00:04,036 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 7.073170731707317) internal successors, (290), 41 states have internal predecessors, (290), 26 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 26 states have call predecessors, (27), 26 states have call successors, (27) Word has length 239 [2024-09-12 18:00:04,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:00:04,040 INFO L225 Difference]: With dead ends: 911 [2024-09-12 18:00:04,040 INFO L226 Difference]: Without dead ends: 731 [2024-09-12 18:00:04,042 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 553 GetRequests, 469 SyntacticMatches, 22 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1179 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1083, Invalid=2949, Unknown=0, NotChecked=0, Total=4032 [2024-09-12 18:00:04,042 INFO L434 NwaCegarLoop]: 73 mSDtfsCounter, 174 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:00:04,042 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 584 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:00:04,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2024-09-12 18:00:04,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 671. [2024-09-12 18:00:04,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 616 states have (on average 1.1168831168831168) internal successors, (688), 620 states have internal predecessors, (688), 40 states have call successors, (40), 11 states have call predecessors, (40), 10 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-09-12 18:00:04,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 767 transitions. [2024-09-12 18:00:04,229 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 767 transitions. Word has length 239 [2024-09-12 18:00:04,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:00:04,230 INFO L474 AbstractCegarLoop]: Abstraction has 671 states and 767 transitions. [2024-09-12 18:00:04,230 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 7.073170731707317) internal successors, (290), 41 states have internal predecessors, (290), 26 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 26 states have call predecessors, (27), 26 states have call successors, (27) [2024-09-12 18:00:04,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:04,231 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 767 transitions. [2024-09-12 18:00:04,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2024-09-12 18:00:04,232 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:00:04,232 INFO L216 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:00:04,249 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-09-12 18:00:04,433 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-09-12 18:00:04,433 INFO L399 AbstractCegarLoop]: === Iteration 32 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:00:04,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:04,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1073302735, now seen corresponding path program 14 times [2024-09-12 18:00:04,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:00:04,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414216897] [2024-09-12 18:00:04,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:00:04,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:00:04,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:05,009 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:00:05,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:05,011 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-09-12 18:00:05,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:05,012 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 18:00:05,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:05,013 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-09-12 18:00:05,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:05,015 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-09-12 18:00:05,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:05,016 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-09-12 18:00:05,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:05,017 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-09-12 18:00:05,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:05,018 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-09-12 18:00:05,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:05,020 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-09-12 18:00:05,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:05,021 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-09-12 18:00:05,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:05,023 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-09-12 18:00:05,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:05,024 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-09-12 18:00:05,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:05,026 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-09-12 18:00:05,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:05,029 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 554 proven. 508 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-09-12 18:00:05,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:00:05,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414216897] [2024-09-12 18:00:05,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414216897] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:00:05,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660478906] [2024-09-12 18:00:05,029 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:00:05,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:05,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:00:05,031 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:00:05,033 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-09-12 18:00:05,134 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:00:05,135 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:00:05,141 INFO L262 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-09-12 18:00:05,145 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:00:05,573 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 444 proven. 618 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-09-12 18:00:05,573 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:00:06,174 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 444 proven. 618 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-09-12 18:00:06,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1660478906] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:00:06,175 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:00:06,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 17, 17] total 43 [2024-09-12 18:00:06,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558381188] [2024-09-12 18:00:06,175 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:00:06,176 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-09-12 18:00:06,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:00:06,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-09-12 18:00:06,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=305, Invalid=1501, Unknown=0, NotChecked=0, Total=1806 [2024-09-12 18:00:06,178 INFO L87 Difference]: Start difference. First operand 671 states and 767 transitions. Second operand has 43 states, 43 states have (on average 8.44186046511628) internal successors, (363), 42 states have internal predecessors, (363), 27 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-09-12 18:00:07,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:00:07,847 INFO L93 Difference]: Finished difference Result 916 states and 1061 transitions. [2024-09-12 18:00:07,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2024-09-12 18:00:07,847 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 8.44186046511628) internal successors, (363), 42 states have internal predecessors, (363), 27 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Word has length 245 [2024-09-12 18:00:07,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:00:07,851 INFO L225 Difference]: With dead ends: 916 [2024-09-12 18:00:07,851 INFO L226 Difference]: Without dead ends: 740 [2024-09-12 18:00:07,855 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 629 GetRequests, 488 SyntacticMatches, 27 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4927 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=2171, Invalid=11169, Unknown=0, NotChecked=0, Total=13340 [2024-09-12 18:00:07,855 INFO L434 NwaCegarLoop]: 48 mSDtfsCounter, 397 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 2002 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 2092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 2002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:00:07,855 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 538 Invalid, 2092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 2002 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:00:07,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2024-09-12 18:00:08,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 675. [2024-09-12 18:00:08,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 619 states have (on average 1.1147011308562198) internal successors, (690), 623 states have internal predecessors, (690), 40 states have call successors, (40), 12 states have call predecessors, (40), 11 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-09-12 18:00:08,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 769 transitions. [2024-09-12 18:00:08,032 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 769 transitions. Word has length 245 [2024-09-12 18:00:08,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:00:08,032 INFO L474 AbstractCegarLoop]: Abstraction has 675 states and 769 transitions. [2024-09-12 18:00:08,033 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 8.44186046511628) internal successors, (363), 42 states have internal predecessors, (363), 27 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-09-12 18:00:08,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:08,033 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 769 transitions. [2024-09-12 18:00:08,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-09-12 18:00:08,035 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:00:08,035 INFO L216 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:00:08,052 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-09-12 18:00:08,236 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,27 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:08,236 INFO L399 AbstractCegarLoop]: === Iteration 33 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:00:08,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:08,237 INFO L85 PathProgramCache]: Analyzing trace with hash -2049872589, now seen corresponding path program 15 times [2024-09-12 18:00:08,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:00:08,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459474620] [2024-09-12 18:00:08,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:00:08,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:00:08,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:08,884 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:00:08,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:08,886 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-12 18:00:08,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:08,888 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 18:00:08,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:08,890 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-09-12 18:00:08,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:08,891 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-09-12 18:00:08,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:08,892 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 18:00:08,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:08,894 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-09-12 18:00:08,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:08,896 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-09-12 18:00:08,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:08,898 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-09-12 18:00:08,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:08,899 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-09-12 18:00:08,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:08,901 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-09-12 18:00:08,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:08,903 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-09-12 18:00:08,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:08,904 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-09-12 18:00:08,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:08,906 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2024-09-12 18:00:08,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:08,909 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 658 proven. 590 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-09-12 18:00:08,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:00:08,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459474620] [2024-09-12 18:00:08,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459474620] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:00:08,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1034510964] [2024-09-12 18:00:08,910 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:00:08,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:08,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:00:08,913 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:00:08,915 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-09-12 18:00:09,047 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2024-09-12 18:00:09,048 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:00:09,051 INFO L262 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-09-12 18:00:09,055 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:00:09,668 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 754 proven. 494 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-09-12 18:00:09,669 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:00:10,100 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 754 proven. 494 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-09-12 18:00:10,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1034510964] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:00:10,101 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:00:10,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30, 30] total 46 [2024-09-12 18:00:10,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038533204] [2024-09-12 18:00:10,101 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:00:10,102 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-09-12 18:00:10,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:00:10,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-09-12 18:00:10,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=483, Invalid=1587, Unknown=0, NotChecked=0, Total=2070 [2024-09-12 18:00:10,105 INFO L87 Difference]: Start difference. First operand 675 states and 769 transitions. Second operand has 46 states, 46 states have (on average 6.869565217391305) internal successors, (316), 46 states have internal predecessors, (316), 29 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-09-12 18:00:11,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:00:11,003 INFO L93 Difference]: Finished difference Result 921 states and 1066 transitions. [2024-09-12 18:00:11,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-09-12 18:00:11,004 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 6.869565217391305) internal successors, (316), 46 states have internal predecessors, (316), 29 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Word has length 264 [2024-09-12 18:00:11,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:00:11,007 INFO L225 Difference]: With dead ends: 921 [2024-09-12 18:00:11,007 INFO L226 Difference]: Without dead ends: 745 [2024-09-12 18:00:11,009 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 612 GetRequests, 515 SyntacticMatches, 26 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1509 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1441, Invalid=3815, Unknown=0, NotChecked=0, Total=5256 [2024-09-12 18:00:11,009 INFO L434 NwaCegarLoop]: 83 mSDtfsCounter, 231 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:00:11,009 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 539 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:00:11,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2024-09-12 18:00:11,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 675. [2024-09-12 18:00:11,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 619 states have (on average 1.1130856219709209) internal successors, (689), 623 states have internal predecessors, (689), 40 states have call successors, (40), 12 states have call predecessors, (40), 11 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-09-12 18:00:11,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 768 transitions. [2024-09-12 18:00:11,160 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 768 transitions. Word has length 264 [2024-09-12 18:00:11,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:00:11,160 INFO L474 AbstractCegarLoop]: Abstraction has 675 states and 768 transitions. [2024-09-12 18:00:11,160 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 6.869565217391305) internal successors, (316), 46 states have internal predecessors, (316), 29 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-09-12 18:00:11,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:11,160 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 768 transitions. [2024-09-12 18:00:11,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-09-12 18:00:11,162 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:00:11,162 INFO L216 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:00:11,176 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-09-12 18:00:11,362 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,28 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:11,363 INFO L399 AbstractCegarLoop]: === Iteration 34 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:00:11,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:11,364 INFO L85 PathProgramCache]: Analyzing trace with hash 318793482, now seen corresponding path program 16 times [2024-09-12 18:00:11,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:00:11,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450542791] [2024-09-12 18:00:11,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:00:11,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:00:11,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:11,884 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:00:11,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:11,885 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 18:00:11,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:11,887 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-09-12 18:00:11,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:11,889 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 18:00:11,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:11,890 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-09-12 18:00:11,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:11,892 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-09-12 18:00:11,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:11,893 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-09-12 18:00:11,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:11,895 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 18:00:11,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:11,896 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-09-12 18:00:11,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:11,898 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-09-12 18:00:11,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:11,899 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-09-12 18:00:11,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:11,901 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-09-12 18:00:11,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:11,903 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-09-12 18:00:11,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:11,904 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-09-12 18:00:11,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:11,907 INFO L134 CoverageAnalysis]: Checked inductivity of 1640 backedges. 520 proven. 808 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-09-12 18:00:11,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:00:11,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450542791] [2024-09-12 18:00:11,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450542791] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:00:11,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [809979666] [2024-09-12 18:00:11,908 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 18:00:11,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:11,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:00:11,910 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:00:11,912 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-09-12 18:00:12,019 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 18:00:12,019 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:00:12,022 INFO L262 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-09-12 18:00:12,025 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:00:12,245 INFO L134 CoverageAnalysis]: Checked inductivity of 1640 backedges. 600 proven. 728 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-09-12 18:00:12,245 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:00:12,624 INFO L134 CoverageAnalysis]: Checked inductivity of 1640 backedges. 600 proven. 728 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-09-12 18:00:12,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [809979666] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:00:12,624 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:00:12,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 23 [2024-09-12 18:00:12,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331758770] [2024-09-12 18:00:12,624 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:00:12,625 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-09-12 18:00:12,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:00:12,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-09-12 18:00:12,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=339, Unknown=0, NotChecked=0, Total=506 [2024-09-12 18:00:12,626 INFO L87 Difference]: Start difference. First operand 675 states and 768 transitions. Second operand has 23 states, 23 states have (on average 10.347826086956522) internal successors, (238), 21 states have internal predecessors, (238), 16 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-09-12 18:00:12,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:00:12,917 INFO L93 Difference]: Finished difference Result 682 states and 773 transitions. [2024-09-12 18:00:12,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-09-12 18:00:12,918 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 10.347826086956522) internal successors, (238), 21 states have internal predecessors, (238), 16 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Word has length 270 [2024-09-12 18:00:12,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:00:12,921 INFO L225 Difference]: With dead ends: 682 [2024-09-12 18:00:12,921 INFO L226 Difference]: Without dead ends: 679 [2024-09-12 18:00:12,922 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 600 GetRequests, 551 SyntacticMatches, 27 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=173, Invalid=379, Unknown=0, NotChecked=0, Total=552 [2024-09-12 18:00:12,922 INFO L434 NwaCegarLoop]: 86 mSDtfsCounter, 19 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:00:12,923 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 728 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:00:12,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2024-09-12 18:00:13,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 679. [2024-09-12 18:00:13,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 622 states have (on average 1.1028938906752412) internal successors, (686), 626 states have internal predecessors, (686), 40 states have call successors, (40), 13 states have call predecessors, (40), 12 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-09-12 18:00:13,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 765 transitions. [2024-09-12 18:00:13,110 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 765 transitions. Word has length 270 [2024-09-12 18:00:13,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:00:13,113 INFO L474 AbstractCegarLoop]: Abstraction has 679 states and 765 transitions. [2024-09-12 18:00:13,113 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 10.347826086956522) internal successors, (238), 21 states have internal predecessors, (238), 16 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-09-12 18:00:13,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:13,113 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 765 transitions. [2024-09-12 18:00:13,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2024-09-12 18:00:13,115 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:00:13,115 INFO L216 NwaCegarLoop]: trace histogram [16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:00:13,134 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-09-12 18:00:13,316 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-09-12 18:00:13,316 INFO L399 AbstractCegarLoop]: === Iteration 35 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:00:13,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:13,317 INFO L85 PathProgramCache]: Analyzing trace with hash -744683414, now seen corresponding path program 17 times [2024-09-12 18:00:13,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:00:13,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828452854] [2024-09-12 18:00:13,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:00:13,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:00:13,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:13,996 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:00:13,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:13,998 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 18:00:13,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:14,000 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-09-12 18:00:14,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:14,001 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 18:00:14,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:14,002 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-09-12 18:00:14,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:14,004 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-09-12 18:00:14,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:14,005 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-09-12 18:00:14,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:14,007 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 18:00:14,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:14,008 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-09-12 18:00:14,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:14,010 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-09-12 18:00:14,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:14,011 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-09-12 18:00:14,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:14,012 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-09-12 18:00:14,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:14,013 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-09-12 18:00:14,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:14,015 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-09-12 18:00:14,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:14,016 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2024-09-12 18:00:14,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:14,018 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2024-09-12 18:00:14,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:14,020 INFO L134 CoverageAnalysis]: Checked inductivity of 1999 backedges. 893 proven. 686 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-09-12 18:00:14,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:00:14,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828452854] [2024-09-12 18:00:14,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828452854] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:00:14,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951595024] [2024-09-12 18:00:14,021 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 18:00:14,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:14,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:00:14,025 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:00:14,026 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-09-12 18:00:14,168 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2024-09-12 18:00:14,168 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:00:14,171 INFO L262 TraceCheckSpWp]: Trace formula consists of 596 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-09-12 18:00:14,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:00:14,864 INFO L134 CoverageAnalysis]: Checked inductivity of 1999 backedges. 1005 proven. 574 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-09-12 18:00:14,864 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:00:15,386 INFO L134 CoverageAnalysis]: Checked inductivity of 1999 backedges. 1005 proven. 574 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-09-12 18:00:15,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1951595024] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:00:15,387 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:00:15,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 53 [2024-09-12 18:00:15,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419170963] [2024-09-12 18:00:15,387 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:00:15,388 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2024-09-12 18:00:15,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:00:15,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2024-09-12 18:00:15,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=650, Invalid=2106, Unknown=0, NotChecked=0, Total=2756 [2024-09-12 18:00:15,389 INFO L87 Difference]: Start difference. First operand 679 states and 765 transitions. Second operand has 53 states, 53 states have (on average 7.0) internal successors, (371), 53 states have internal predecessors, (371), 34 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-09-12 18:00:17,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:00:17,126 INFO L93 Difference]: Finished difference Result 1075 states and 1227 transitions. [2024-09-12 18:00:17,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2024-09-12 18:00:17,127 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 7.0) internal successors, (371), 53 states have internal predecessors, (371), 34 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Word has length 296 [2024-09-12 18:00:17,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:00:17,131 INFO L225 Difference]: With dead ends: 1075 [2024-09-12 18:00:17,131 INFO L226 Difference]: Without dead ends: 759 [2024-09-12 18:00:17,135 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 716 GetRequests, 578 SyntacticMatches, 27 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3853 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=3356, Invalid=9300, Unknown=0, NotChecked=0, Total=12656 [2024-09-12 18:00:17,135 INFO L434 NwaCegarLoop]: 88 mSDtfsCounter, 343 mSDsluCounter, 939 mSDsCounter, 0 mSdLazyCounter, 1336 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 1429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:00:17,135 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 1027 Invalid, 1429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1336 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:00:17,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2024-09-12 18:00:17,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 679. [2024-09-12 18:00:17,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 622 states have (on average 1.0996784565916398) internal successors, (684), 626 states have internal predecessors, (684), 40 states have call successors, (40), 13 states have call predecessors, (40), 12 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-09-12 18:00:17,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 763 transitions. [2024-09-12 18:00:17,333 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 763 transitions. Word has length 296 [2024-09-12 18:00:17,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:00:17,333 INFO L474 AbstractCegarLoop]: Abstraction has 679 states and 763 transitions. [2024-09-12 18:00:17,334 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 7.0) internal successors, (371), 53 states have internal predecessors, (371), 34 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-09-12 18:00:17,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:17,334 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 763 transitions. [2024-09-12 18:00:17,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2024-09-12 18:00:17,336 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:00:17,336 INFO L216 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 47, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:00:17,354 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-09-12 18:00:17,536 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-09-12 18:00:17,537 INFO L399 AbstractCegarLoop]: === Iteration 36 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:00:17,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:17,537 INFO L85 PathProgramCache]: Analyzing trace with hash 569185322, now seen corresponding path program 5 times [2024-09-12 18:00:17,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:00:17,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697954228] [2024-09-12 18:00:17,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:00:17,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:00:17,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:18,956 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:00:18,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:18,960 INFO L134 CoverageAnalysis]: Checked inductivity of 6486 backedges. 0 proven. 6486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:00:18,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:00:18,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697954228] [2024-09-12 18:00:18,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697954228] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:00:18,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [959375399] [2024-09-12 18:00:18,961 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 18:00:18,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:18,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:00:18,962 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:00:18,963 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-09-12 18:00:19,114 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2024-09-12 18:00:19,114 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:00:19,116 INFO L262 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-09-12 18:00:19,120 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:00:19,340 INFO L134 CoverageAnalysis]: Checked inductivity of 6486 backedges. 0 proven. 6486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:00:19,340 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:00:21,697 INFO L134 CoverageAnalysis]: Checked inductivity of 6486 backedges. 0 proven. 6486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:00:21,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [959375399] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:00:21,697 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:00:21,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 96 [2024-09-12 18:00:21,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718371356] [2024-09-12 18:00:21,698 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:00:21,698 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2024-09-12 18:00:21,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:00:21,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2024-09-12 18:00:21,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2024-09-12 18:00:21,701 INFO L87 Difference]: Start difference. First operand 679 states and 763 transitions. Second operand has 97 states, 96 states have (on average 6.104166666666667) internal successors, (586), 97 states have internal predecessors, (586), 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 18:00:27,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:00:27,147 INFO L93 Difference]: Finished difference Result 12624 states and 15119 transitions. [2024-09-12 18:00:27,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2024-09-12 18:00:27,148 INFO L78 Accepts]: Start accepts. Automaton has has 97 states, 96 states have (on average 6.104166666666667) internal successors, (586), 97 states have internal predecessors, (586), 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 291 [2024-09-12 18:00:27,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:00:27,197 INFO L225 Difference]: With dead ends: 12624 [2024-09-12 18:00:27,197 INFO L226 Difference]: Without dead ends: 12622 [2024-09-12 18:00:27,203 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 631 GetRequests, 536 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2024-09-12 18:00:27,203 INFO L434 NwaCegarLoop]: 157 mSDtfsCounter, 1998 mSDsluCounter, 1751 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2092 SdHoareTripleChecker+Valid, 1908 SdHoareTripleChecker+Invalid, 956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:00:27,204 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2092 Valid, 1908 Invalid, 956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:00:27,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12622 states. [2024-09-12 18:00:27,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12622 to 967. [2024-09-12 18:00:27,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 967 states, 910 states have (on average 1.120879120879121) internal successors, (1020), 914 states have internal predecessors, (1020), 40 states have call successors, (40), 13 states have call predecessors, (40), 12 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-09-12 18:00:27,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 967 states and 1099 transitions. [2024-09-12 18:00:27,782 INFO L78 Accepts]: Start accepts. Automaton has 967 states and 1099 transitions. Word has length 291 [2024-09-12 18:00:27,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:00:27,782 INFO L474 AbstractCegarLoop]: Abstraction has 967 states and 1099 transitions. [2024-09-12 18:00:27,783 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 96 states have (on average 6.104166666666667) internal successors, (586), 97 states have internal predecessors, (586), 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 18:00:27,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:27,783 INFO L276 IsEmpty]: Start isEmpty. Operand 967 states and 1099 transitions. [2024-09-12 18:00:27,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2024-09-12 18:00:27,786 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:00:27,787 INFO L216 NwaCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:00:27,811 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-09-12 18:00:27,987 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-09-12 18:00:27,988 INFO L399 AbstractCegarLoop]: === Iteration 37 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:00:27,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:27,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1445804328, now seen corresponding path program 18 times [2024-09-12 18:00:27,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:00:27,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099904814] [2024-09-12 18:00:27,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:00:27,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:00:28,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:28,640 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:00:28,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:28,642 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 18:00:28,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:28,643 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-09-12 18:00:28,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:28,645 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-09-12 18:00:28,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:28,646 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-09-12 18:00:28,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:28,647 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 18:00:28,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:28,649 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-09-12 18:00:28,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:28,650 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-09-12 18:00:28,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:28,651 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-09-12 18:00:28,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:28,652 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-09-12 18:00:28,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:28,654 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-09-12 18:00:28,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:28,656 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2024-09-12 18:00:28,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:28,657 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2024-09-12 18:00:28,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:28,658 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-09-12 18:00:28,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:28,660 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2024-09-12 18:00:28,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:28,661 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2024-09-12 18:00:28,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:28,663 INFO L134 CoverageAnalysis]: Checked inductivity of 2177 backedges. 690 proven. 1067 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-09-12 18:00:28,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:00:28,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099904814] [2024-09-12 18:00:28,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099904814] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:00:28,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162054308] [2024-09-12 18:00:28,663 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 18:00:28,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:28,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:00:28,665 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:00:28,667 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-09-12 18:00:28,810 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 17 check-sat command(s) [2024-09-12 18:00:28,810 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:00:28,813 INFO L262 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-09-12 18:00:28,818 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:00:29,045 INFO L134 CoverageAnalysis]: Checked inductivity of 2177 backedges. 782 proven. 975 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-09-12 18:00:29,045 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:00:29,467 INFO L134 CoverageAnalysis]: Checked inductivity of 2177 backedges. 782 proven. 975 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-09-12 18:00:29,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162054308] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:00:29,467 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:00:29,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 25 [2024-09-12 18:00:29,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850287401] [2024-09-12 18:00:29,467 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:00:29,468 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-09-12 18:00:29,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:00:29,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-09-12 18:00:29,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=204, Invalid=396, Unknown=0, NotChecked=0, Total=600 [2024-09-12 18:00:29,469 INFO L87 Difference]: Start difference. First operand 967 states and 1099 transitions. Second operand has 25 states, 25 states have (on average 10.64) internal successors, (266), 23 states have internal predecessors, (266), 18 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 18:00:29,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:00:29,972 INFO L93 Difference]: Finished difference Result 974 states and 1104 transitions. [2024-09-12 18:00:29,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-09-12 18:00:29,972 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.64) internal successors, (266), 23 states have internal predecessors, (266), 18 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Word has length 308 [2024-09-12 18:00:29,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:00:29,976 INFO L225 Difference]: With dead ends: 974 [2024-09-12 18:00:29,976 INFO L226 Difference]: Without dead ends: 971 [2024-09-12 18:00:29,977 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 684 GetRequests, 627 SyntacticMatches, 33 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 535 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=210, Invalid=440, Unknown=0, NotChecked=0, Total=650 [2024-09-12 18:00:29,977 INFO L434 NwaCegarLoop]: 94 mSDtfsCounter, 22 mSDsluCounter, 785 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:00:29,977 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 879 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:00:29,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2024-09-12 18:00:30,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 971. [2024-09-12 18:00:30,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 971 states, 913 states have (on average 1.1161007667031764) internal successors, (1019), 917 states have internal predecessors, (1019), 40 states have call successors, (40), 14 states have call predecessors, (40), 13 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-09-12 18:00:30,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 971 states to 971 states and 1098 transitions. [2024-09-12 18:00:30,282 INFO L78 Accepts]: Start accepts. Automaton has 971 states and 1098 transitions. Word has length 308 [2024-09-12 18:00:30,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:00:30,282 INFO L474 AbstractCegarLoop]: Abstraction has 971 states and 1098 transitions. [2024-09-12 18:00:30,282 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.64) internal successors, (266), 23 states have internal predecessors, (266), 18 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 18:00:30,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:30,283 INFO L276 IsEmpty]: Start isEmpty. Operand 971 states and 1098 transitions. [2024-09-12 18:00:30,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2024-09-12 18:00:30,284 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:00:30,285 INFO L216 NwaCegarLoop]: trace histogram [18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:00:30,302 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-09-12 18:00:30,485 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-09-12 18:00:30,485 INFO L399 AbstractCegarLoop]: === Iteration 38 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:00:30,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:30,486 INFO L85 PathProgramCache]: Analyzing trace with hash -597548360, now seen corresponding path program 19 times [2024-09-12 18:00:30,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:00:30,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054359466] [2024-09-12 18:00:30,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:00:30,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:00:30,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:31,208 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:00:31,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:31,210 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 18:00:31,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:31,211 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-09-12 18:00:31,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:31,212 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-09-12 18:00:31,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:31,213 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-09-12 18:00:31,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:31,214 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 18:00:31,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:31,216 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-09-12 18:00:31,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:31,217 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-09-12 18:00:31,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:31,218 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-09-12 18:00:31,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:31,219 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-09-12 18:00:31,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:31,221 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-09-12 18:00:31,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:31,223 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2024-09-12 18:00:31,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:31,224 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2024-09-12 18:00:31,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:31,226 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-09-12 18:00:31,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:31,227 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2024-09-12 18:00:31,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:31,228 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2024-09-12 18:00:31,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:31,229 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2024-09-12 18:00:31,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:31,230 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2024-09-12 18:00:31,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:31,232 INFO L134 CoverageAnalysis]: Checked inductivity of 2588 backedges. 1164 proven. 880 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-09-12 18:00:31,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:00:31,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054359466] [2024-09-12 18:00:31,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054359466] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:00:31,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702185872] [2024-09-12 18:00:31,233 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 18:00:31,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:31,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:00:31,235 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:00:31,236 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-09-12 18:00:31,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:31,354 INFO L262 TraceCheckSpWp]: Trace formula consists of 670 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-09-12 18:00:31,358 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:00:32,145 INFO L134 CoverageAnalysis]: Checked inductivity of 2588 backedges. 1352 proven. 752 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2024-09-12 18:00:32,145 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:00:32,708 INFO L134 CoverageAnalysis]: Checked inductivity of 2588 backedges. 1290 proven. 752 refuted. 0 times theorem prover too weak. 546 trivial. 0 not checked. [2024-09-12 18:00:32,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1702185872] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:00:32,708 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:00:32,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 36, 36] total 56 [2024-09-12 18:00:32,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635543013] [2024-09-12 18:00:32,708 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:00:32,709 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2024-09-12 18:00:32,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:00:32,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2024-09-12 18:00:32,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=706, Invalid=2374, Unknown=0, NotChecked=0, Total=3080 [2024-09-12 18:00:32,711 INFO L87 Difference]: Start difference. First operand 971 states and 1098 transitions. Second operand has 56 states, 56 states have (on average 7.142857142857143) internal successors, (400), 56 states have internal predecessors, (400), 36 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (37), 36 states have call predecessors, (37), 36 states have call successors, (37) [2024-09-12 18:00:34,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:00:34,460 INFO L93 Difference]: Finished difference Result 1236 states and 1414 transitions. [2024-09-12 18:00:34,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-09-12 18:00:34,461 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 56 states have (on average 7.142857142857143) internal successors, (400), 56 states have internal predecessors, (400), 36 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (37), 36 states have call predecessors, (37), 36 states have call successors, (37) Word has length 334 [2024-09-12 18:00:34,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:00:34,464 INFO L225 Difference]: With dead ends: 1236 [2024-09-12 18:00:34,464 INFO L226 Difference]: Without dead ends: 1056 [2024-09-12 18:00:34,466 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 773 GetRequests, 654 SyntacticMatches, 32 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2279 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=2123, Invalid=5709, Unknown=0, NotChecked=0, Total=7832 [2024-09-12 18:00:34,466 INFO L434 NwaCegarLoop]: 98 mSDtfsCounter, 236 mSDsluCounter, 916 mSDsCounter, 0 mSdLazyCounter, 1141 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 1014 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:00:34,467 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 1014 Invalid, 1204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1141 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:00:34,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2024-09-12 18:00:34,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 971. [2024-09-12 18:00:34,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 971 states, 913 states have (on average 1.1150054764512596) internal successors, (1018), 917 states have internal predecessors, (1018), 40 states have call successors, (40), 14 states have call predecessors, (40), 13 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-09-12 18:00:34,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 971 states to 971 states and 1097 transitions. [2024-09-12 18:00:34,779 INFO L78 Accepts]: Start accepts. Automaton has 971 states and 1097 transitions. Word has length 334 [2024-09-12 18:00:34,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:00:34,779 INFO L474 AbstractCegarLoop]: Abstraction has 971 states and 1097 transitions. [2024-09-12 18:00:34,780 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 7.142857142857143) internal successors, (400), 56 states have internal predecessors, (400), 36 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (37), 36 states have call predecessors, (37), 36 states have call successors, (37) [2024-09-12 18:00:34,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:34,780 INFO L276 IsEmpty]: Start isEmpty. Operand 971 states and 1097 transitions. [2024-09-12 18:00:34,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2024-09-12 18:00:34,782 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:00:34,782 INFO L216 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:00:34,794 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-09-12 18:00:34,982 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-09-12 18:00:34,982 INFO L399 AbstractCegarLoop]: === Iteration 39 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:00:34,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:34,983 INFO L85 PathProgramCache]: Analyzing trace with hash 706602831, now seen corresponding path program 20 times [2024-09-12 18:00:34,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:00:34,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420345700] [2024-09-12 18:00:34,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:00:34,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:00:35,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:35,690 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:00:35,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:35,691 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-09-12 18:00:35,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:35,693 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-09-12 18:00:35,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:35,694 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-09-12 18:00:35,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:35,695 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-09-12 18:00:35,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:35,696 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-09-12 18:00:35,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:35,697 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-09-12 18:00:35,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:35,698 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-09-12 18:00:35,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:35,699 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-09-12 18:00:35,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:35,700 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-09-12 18:00:35,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:35,701 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-09-12 18:00:35,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:35,702 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2024-09-12 18:00:35,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:35,703 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2024-09-12 18:00:35,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:35,704 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2024-09-12 18:00:35,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:35,705 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2024-09-12 18:00:35,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:35,707 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2024-09-12 18:00:35,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:35,708 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2024-09-12 18:00:35,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:35,709 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2024-09-12 18:00:35,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:35,710 INFO L134 CoverageAnalysis]: Checked inductivity of 2686 backedges. 1164 proven. 978 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-09-12 18:00:35,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:00:35,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420345700] [2024-09-12 18:00:35,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420345700] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:00:35,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1251058744] [2024-09-12 18:00:35,711 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:00:35,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:35,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:00:35,712 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:00:35,713 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-09-12 18:00:35,828 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:00:35,828 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:00:35,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-09-12 18:00:35,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:00:36,427 INFO L134 CoverageAnalysis]: Checked inductivity of 2686 backedges. 884 proven. 1258 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-09-12 18:00:36,427 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:00:37,358 INFO L134 CoverageAnalysis]: Checked inductivity of 2686 backedges. 884 proven. 1258 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-09-12 18:00:37,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1251058744] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:00:37,358 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:00:37,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 22, 22] total 58 [2024-09-12 18:00:37,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647324431] [2024-09-12 18:00:37,359 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:00:37,359 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2024-09-12 18:00:37,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:00:37,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2024-09-12 18:00:37,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=555, Invalid=2751, Unknown=0, NotChecked=0, Total=3306 [2024-09-12 18:00:37,362 INFO L87 Difference]: Start difference. First operand 971 states and 1097 transitions. Second operand has 58 states, 58 states have (on average 8.672413793103448) internal successors, (503), 57 states have internal predecessors, (503), 37 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-09-12 18:00:40,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:00:40,337 INFO L93 Difference]: Finished difference Result 1241 states and 1421 transitions. [2024-09-12 18:00:40,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2024-09-12 18:00:40,338 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 8.672413793103448) internal successors, (503), 57 states have internal predecessors, (503), 37 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Word has length 340 [2024-09-12 18:00:40,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:00:40,341 INFO L225 Difference]: With dead ends: 1241 [2024-09-12 18:00:40,341 INFO L226 Difference]: Without dead ends: 1065 [2024-09-12 18:00:40,344 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 874 GetRequests, 678 SyntacticMatches, 37 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9924 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=4051, Invalid=21709, Unknown=0, NotChecked=0, Total=25760 [2024-09-12 18:00:40,345 INFO L434 NwaCegarLoop]: 63 mSDtfsCounter, 629 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 2798 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 630 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 2946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 2798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:00:40,345 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [630 Valid, 788 Invalid, 2946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 2798 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-09-12 18:00:40,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2024-09-12 18:00:40,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 975. [2024-09-12 18:00:40,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 975 states, 916 states have (on average 1.1135371179039302) internal successors, (1020), 920 states have internal predecessors, (1020), 40 states have call successors, (40), 15 states have call predecessors, (40), 14 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-09-12 18:00:40,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 975 states to 975 states and 1099 transitions. [2024-09-12 18:00:40,665 INFO L78 Accepts]: Start accepts. Automaton has 975 states and 1099 transitions. Word has length 340 [2024-09-12 18:00:40,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:00:40,665 INFO L474 AbstractCegarLoop]: Abstraction has 975 states and 1099 transitions. [2024-09-12 18:00:40,665 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 8.672413793103448) internal successors, (503), 57 states have internal predecessors, (503), 37 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-09-12 18:00:40,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:40,666 INFO L276 IsEmpty]: Start isEmpty. Operand 975 states and 1099 transitions. [2024-09-12 18:00:40,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2024-09-12 18:00:40,667 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:00:40,668 INFO L216 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:00:40,681 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-09-12 18:00:40,868 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-09-12 18:00:40,868 INFO L399 AbstractCegarLoop]: === Iteration 40 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:00:40,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:40,869 INFO L85 PathProgramCache]: Analyzing trace with hash -800183899, now seen corresponding path program 21 times [2024-09-12 18:00:40,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:00:40,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126162842] [2024-09-12 18:00:40,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:00:40,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:00:40,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:41,686 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:00:41,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:41,688 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-09-12 18:00:41,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:41,689 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 18:00:41,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:41,691 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-09-12 18:00:41,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:41,692 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-09-12 18:00:41,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:41,693 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-12 18:00:41,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:41,694 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-09-12 18:00:41,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:41,695 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-09-12 18:00:41,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:41,696 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-09-12 18:00:41,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:41,697 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2024-09-12 18:00:41,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:41,698 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2024-09-12 18:00:41,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:41,700 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2024-09-12 18:00:41,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:41,701 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-09-12 18:00:41,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:41,703 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2024-09-12 18:00:41,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:41,704 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2024-09-12 18:00:41,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:41,705 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2024-09-12 18:00:41,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:41,706 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2024-09-12 18:00:41,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:41,707 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2024-09-12 18:00:41,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:41,708 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-09-12 18:00:41,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:41,709 INFO L134 CoverageAnalysis]: Checked inductivity of 3015 backedges. 1313 proven. 1090 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 18:00:41,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:00:41,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126162842] [2024-09-12 18:00:41,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126162842] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:00:41,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842828195] [2024-09-12 18:00:41,710 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:00:41,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:41,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:00:41,711 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:00:41,712 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-09-12 18:00:41,854 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2024-09-12 18:00:41,854 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:00:41,857 INFO L262 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-09-12 18:00:41,860 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:00:42,553 INFO L134 CoverageAnalysis]: Checked inductivity of 3015 backedges. 990 proven. 1413 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 18:00:42,553 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:00:43,621 INFO L134 CoverageAnalysis]: Checked inductivity of 3015 backedges. 990 proven. 1413 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 18:00:43,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [842828195] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:00:43,622 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:00:43,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 23, 23] total 61 [2024-09-12 18:00:43,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603327467] [2024-09-12 18:00:43,622 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:00:43,623 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2024-09-12 18:00:43,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:00:43,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2024-09-12 18:00:43,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=614, Invalid=3046, Unknown=0, NotChecked=0, Total=3660 [2024-09-12 18:00:43,625 INFO L87 Difference]: Start difference. First operand 975 states and 1099 transitions. Second operand has 61 states, 61 states have (on average 8.704918032786885) internal successors, (531), 60 states have internal predecessors, (531), 39 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-09-12 18:00:46,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:00:46,446 INFO L93 Difference]: Finished difference Result 1270 states and 1455 transitions. [2024-09-12 18:00:46,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2024-09-12 18:00:46,447 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 61 states have (on average 8.704918032786885) internal successors, (531), 60 states have internal predecessors, (531), 39 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Word has length 359 [2024-09-12 18:00:46,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:00:46,451 INFO L225 Difference]: With dead ends: 1270 [2024-09-12 18:00:46,451 INFO L226 Difference]: Without dead ends: 1090 [2024-09-12 18:00:46,454 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 923 GetRequests, 716 SyntacticMatches, 39 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11131 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=4496, Invalid=24234, Unknown=0, NotChecked=0, Total=28730 [2024-09-12 18:00:46,455 INFO L434 NwaCegarLoop]: 66 mSDtfsCounter, 673 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 2789 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 674 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 2948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 2789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:00:46,455 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [674 Valid, 706 Invalid, 2948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 2789 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-09-12 18:00:46,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1090 states. [2024-09-12 18:00:46,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1090 to 993. [2024-09-12 18:00:46,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 993 states, 931 states have (on average 1.1106337271750806) internal successors, (1034), 935 states have internal predecessors, (1034), 42 states have call successors, (42), 16 states have call predecessors, (42), 15 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-09-12 18:00:46,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1117 transitions. [2024-09-12 18:00:46,791 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1117 transitions. Word has length 359 [2024-09-12 18:00:46,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:00:46,791 INFO L474 AbstractCegarLoop]: Abstraction has 993 states and 1117 transitions. [2024-09-12 18:00:46,792 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 61 states have (on average 8.704918032786885) internal successors, (531), 60 states have internal predecessors, (531), 39 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-09-12 18:00:46,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:46,792 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1117 transitions. [2024-09-12 18:00:46,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2024-09-12 18:00:46,794 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:00:46,795 INFO L216 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:00:46,813 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-09-12 18:00:46,995 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-09-12 18:00:46,995 INFO L399 AbstractCegarLoop]: === Iteration 41 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:00:46,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:46,996 INFO L85 PathProgramCache]: Analyzing trace with hash 378003530, now seen corresponding path program 3 times [2024-09-12 18:00:46,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:00:46,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382271450] [2024-09-12 18:00:46,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:00:46,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:00:47,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:47,533 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:00:47,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:47,535 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-09-12 18:00:47,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:47,536 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-09-12 18:00:47,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:47,538 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-09-12 18:00:47,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:47,539 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-09-12 18:00:47,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:47,540 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-09-12 18:00:47,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:47,541 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-09-12 18:00:47,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:47,543 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-09-12 18:00:47,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:47,544 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-09-12 18:00:47,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:47,545 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-09-12 18:00:47,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:47,546 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-09-12 18:00:47,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:47,548 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-09-12 18:00:47,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:47,549 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2024-09-12 18:00:47,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:47,550 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2024-09-12 18:00:47,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:47,552 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-09-12 18:00:47,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:47,553 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2024-09-12 18:00:47,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:47,555 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2024-09-12 18:00:47,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:47,556 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2024-09-12 18:00:47,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:47,558 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2024-09-12 18:00:47,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:47,559 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2024-09-12 18:00:47,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:47,561 INFO L134 CoverageAnalysis]: Checked inductivity of 3215 backedges. 0 proven. 1467 refuted. 0 times theorem prover too weak. 1748 trivial. 0 not checked. [2024-09-12 18:00:47,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:00:47,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382271450] [2024-09-12 18:00:47,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382271450] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:00:47,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753989266] [2024-09-12 18:00:47,562 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:00:47,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:47,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:00:47,564 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:00:47,566 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-09-12 18:00:47,714 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2024-09-12 18:00:47,714 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:00:47,716 INFO L262 TraceCheckSpWp]: Trace formula consists of 726 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-12 18:00:47,720 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:00:47,912 INFO L134 CoverageAnalysis]: Checked inductivity of 3215 backedges. 0 proven. 1467 refuted. 0 times theorem prover too weak. 1748 trivial. 0 not checked. [2024-09-12 18:00:47,912 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:00:48,601 INFO L134 CoverageAnalysis]: Checked inductivity of 3215 backedges. 0 proven. 1467 refuted. 0 times theorem prover too weak. 1748 trivial. 0 not checked. [2024-09-12 18:00:48,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [753989266] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:00:48,601 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:00:48,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 46 [2024-09-12 18:00:48,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241622428] [2024-09-12 18:00:48,601 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:00:48,602 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2024-09-12 18:00:48,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:00:48,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2024-09-12 18:00:48,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=806, Invalid=1356, Unknown=0, NotChecked=0, Total=2162 [2024-09-12 18:00:48,603 INFO L87 Difference]: Start difference. First operand 993 states and 1117 transitions. Second operand has 47 states, 46 states have (on average 7.021739130434782) internal successors, (323), 47 states have internal predecessors, (323), 40 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-09-12 18:00:49,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:00:49,422 INFO L93 Difference]: Finished difference Result 1402 states and 1606 transitions. [2024-09-12 18:00:49,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-09-12 18:00:49,423 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 46 states have (on average 7.021739130434782) internal successors, (323), 47 states have internal predecessors, (323), 40 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Word has length 369 [2024-09-12 18:00:49,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:00:49,426 INFO L225 Difference]: With dead ends: 1402 [2024-09-12 18:00:49,426 INFO L226 Difference]: Without dead ends: 1401 [2024-09-12 18:00:49,427 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 806 GetRequests, 754 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1118, Invalid=1744, Unknown=0, NotChecked=0, Total=2862 [2024-09-12 18:00:49,427 INFO L434 NwaCegarLoop]: 31 mSDtfsCounter, 289 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:00:49,427 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 373 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:00:49,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1401 states. [2024-09-12 18:00:49,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1401 to 1339. [2024-09-12 18:00:49,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1339 states, 1239 states have (on average 1.1299435028248588) internal successors, (1400), 1243 states have internal predecessors, (1400), 80 states have call successors, (80), 16 states have call predecessors, (80), 15 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-09-12 18:00:49,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 1559 transitions. [2024-09-12 18:00:49,940 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 1559 transitions. Word has length 369 [2024-09-12 18:00:49,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:00:49,940 INFO L474 AbstractCegarLoop]: Abstraction has 1339 states and 1559 transitions. [2024-09-12 18:00:49,940 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 46 states have (on average 7.021739130434782) internal successors, (323), 47 states have internal predecessors, (323), 40 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-09-12 18:00:49,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:49,940 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 1559 transitions. [2024-09-12 18:00:49,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2024-09-12 18:00:49,942 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:00:49,942 INFO L216 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:00:49,955 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2024-09-12 18:00:50,142 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2024-09-12 18:00:50,143 INFO L399 AbstractCegarLoop]: === Iteration 42 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:00:50,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:50,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1980084131, now seen corresponding path program 22 times [2024-09-12 18:00:50,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:00:50,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351567036] [2024-09-12 18:00:50,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:00:50,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:00:50,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:51,089 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:00:51,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:51,091 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-09-12 18:00:51,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:51,093 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-09-12 18:00:51,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:51,094 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-09-12 18:00:51,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:51,096 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-09-12 18:00:51,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:51,097 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-09-12 18:00:51,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:51,099 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-09-12 18:00:51,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:51,100 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-09-12 18:00:51,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:51,102 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-09-12 18:00:51,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:51,103 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-09-12 18:00:51,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:51,105 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-09-12 18:00:51,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:51,106 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-09-12 18:00:51,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:51,108 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2024-09-12 18:00:51,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:51,109 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2024-09-12 18:00:51,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:51,111 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-09-12 18:00:51,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:51,112 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2024-09-12 18:00:51,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:51,114 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2024-09-12 18:00:51,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:51,115 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2024-09-12 18:00:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:51,117 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2024-09-12 18:00:51,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:51,118 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2024-09-12 18:00:51,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:51,121 INFO L134 CoverageAnalysis]: Checked inductivity of 3363 backedges. 1471 proven. 1208 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-09-12 18:00:51,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:00:51,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351567036] [2024-09-12 18:00:51,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351567036] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:00:51,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855141981] [2024-09-12 18:00:51,122 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 18:00:51,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:51,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:00:51,124 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:00:51,125 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-09-12 18:00:51,270 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 18:00:51,270 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:00:51,273 INFO L262 TraceCheckSpWp]: Trace formula consists of 758 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-09-12 18:00:51,278 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:00:52,228 INFO L134 CoverageAnalysis]: Checked inductivity of 3363 backedges. 1615 proven. 1064 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-09-12 18:00:52,228 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:00:52,941 INFO L134 CoverageAnalysis]: Checked inductivity of 3363 backedges. 1615 proven. 1064 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-09-12 18:00:52,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855141981] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:00:52,941 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:00:52,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42, 42] total 64 [2024-09-12 18:00:52,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954122602] [2024-09-12 18:00:52,941 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:00:52,942 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2024-09-12 18:00:52,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:00:52,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2024-09-12 18:00:52,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=927, Invalid=3105, Unknown=0, NotChecked=0, Total=4032 [2024-09-12 18:00:52,944 INFO L87 Difference]: Start difference. First operand 1339 states and 1559 transitions. Second operand has 64 states, 64 states have (on average 7.0) internal successors, (448), 64 states have internal predecessors, (448), 41 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-09-12 18:00:54,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:00:54,892 INFO L93 Difference]: Finished difference Result 1795 states and 2112 transitions. [2024-09-12 18:00:54,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-09-12 18:00:54,893 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 7.0) internal successors, (448), 64 states have internal predecessors, (448), 41 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Word has length 378 [2024-09-12 18:00:54,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:00:54,897 INFO L225 Difference]: With dead ends: 1795 [2024-09-12 18:00:54,897 INFO L226 Difference]: Without dead ends: 1439 [2024-09-12 18:00:54,899 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 876 GetRequests, 737 SyntacticMatches, 38 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3009 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=2893, Invalid=7613, Unknown=0, NotChecked=0, Total=10506 [2024-09-12 18:00:54,899 INFO L434 NwaCegarLoop]: 113 mSDtfsCounter, 358 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 1210 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 890 SdHoareTripleChecker+Invalid, 1305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:00:54,900 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 890 Invalid, 1305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1210 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:00:54,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1439 states. [2024-09-12 18:00:55,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1439 to 1339. [2024-09-12 18:00:55,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1339 states, 1239 states have (on average 1.129136400322841) internal successors, (1399), 1243 states have internal predecessors, (1399), 80 states have call successors, (80), 16 states have call predecessors, (80), 15 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-09-12 18:00:55,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 1558 transitions. [2024-09-12 18:00:55,456 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 1558 transitions. Word has length 378 [2024-09-12 18:00:55,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:00:55,456 INFO L474 AbstractCegarLoop]: Abstraction has 1339 states and 1558 transitions. [2024-09-12 18:00:55,456 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 7.0) internal successors, (448), 64 states have internal predecessors, (448), 41 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-09-12 18:00:55,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:55,457 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 1558 transitions. [2024-09-12 18:00:55,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2024-09-12 18:00:55,459 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:00:55,459 INFO L216 NwaCegarLoop]: trace histogram [21, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:00:55,475 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2024-09-12 18:00:55,660 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,37 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:55,661 INFO L399 AbstractCegarLoop]: === Iteration 43 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:00:55,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:55,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1259155852, now seen corresponding path program 23 times [2024-09-12 18:00:55,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:00:55,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135299610] [2024-09-12 18:00:55,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:00:55,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:00:55,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:56,371 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:00:56,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:56,373 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-09-12 18:00:56,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:56,374 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 18:00:56,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:56,374 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-09-12 18:00:56,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:56,375 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-09-12 18:00:56,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:56,376 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-09-12 18:00:56,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:56,378 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-09-12 18:00:56,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:56,379 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-09-12 18:00:56,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:56,381 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-09-12 18:00:56,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:56,382 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-09-12 18:00:56,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:56,383 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2024-09-12 18:00:56,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:56,385 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2024-09-12 18:00:56,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:56,387 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2024-09-12 18:00:56,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:56,388 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2024-09-12 18:00:56,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:56,389 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2024-09-12 18:00:56,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:56,391 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2024-09-12 18:00:56,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:56,392 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2024-09-12 18:00:56,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:56,396 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2024-09-12 18:00:56,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:56,398 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2024-09-12 18:00:56,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:56,399 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2024-09-12 18:00:56,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:56,401 INFO L134 CoverageAnalysis]: Checked inductivity of 3479 backedges. 1102 proven. 1693 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-09-12 18:00:56,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:00:56,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135299610] [2024-09-12 18:00:56,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135299610] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:00:56,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124740970] [2024-09-12 18:00:56,402 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 18:00:56,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:56,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:00:56,404 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:00:56,405 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-09-12 18:00:56,563 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 21 check-sat command(s) [2024-09-12 18:00:56,563 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:00:56,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-09-12 18:00:56,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:00:56,848 INFO L134 CoverageAnalysis]: Checked inductivity of 3479 backedges. 1218 proven. 1577 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-09-12 18:00:56,848 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:00:57,424 INFO L134 CoverageAnalysis]: Checked inductivity of 3479 backedges. 1218 proven. 1577 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-09-12 18:00:57,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [124740970] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:00:57,424 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:00:57,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 29 [2024-09-12 18:00:57,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026056398] [2024-09-12 18:00:57,425 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:00:57,425 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-09-12 18:00:57,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:00:57,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-09-12 18:00:57,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=290, Invalid=522, Unknown=0, NotChecked=0, Total=812 [2024-09-12 18:00:57,426 INFO L87 Difference]: Start difference. First operand 1339 states and 1558 transitions. Second operand has 29 states, 29 states have (on average 11.10344827586207) internal successors, (322), 27 states have internal predecessors, (322), 22 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 18:00:58,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:00:58,153 INFO L93 Difference]: Finished difference Result 1346 states and 1563 transitions. [2024-09-12 18:00:58,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-09-12 18:00:58,153 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 11.10344827586207) internal successors, (322), 27 states have internal predecessors, (322), 22 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Word has length 384 [2024-09-12 18:00:58,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:00:58,157 INFO L225 Difference]: With dead ends: 1346 [2024-09-12 18:00:58,157 INFO L226 Difference]: Without dead ends: 1343 [2024-09-12 18:00:58,158 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 852 GetRequests, 783 SyntacticMatches, 41 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 751 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=296, Invalid=574, Unknown=0, NotChecked=0, Total=870 [2024-09-12 18:00:58,158 INFO L434 NwaCegarLoop]: 110 mSDtfsCounter, 31 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:00:58,159 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 814 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:00:58,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1343 states. [2024-09-12 18:00:58,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1343 to 1343. [2024-09-12 18:00:58,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1343 states, 1242 states have (on average 1.1239935587761676) internal successors, (1396), 1246 states have internal predecessors, (1396), 80 states have call successors, (80), 17 states have call predecessors, (80), 16 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-09-12 18:00:58,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1343 states to 1343 states and 1555 transitions. [2024-09-12 18:00:58,658 INFO L78 Accepts]: Start accepts. Automaton has 1343 states and 1555 transitions. Word has length 384 [2024-09-12 18:00:58,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:00:58,659 INFO L474 AbstractCegarLoop]: Abstraction has 1343 states and 1555 transitions. [2024-09-12 18:00:58,659 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 11.10344827586207) internal successors, (322), 27 states have internal predecessors, (322), 22 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 18:00:58,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:58,659 INFO L276 IsEmpty]: Start isEmpty. Operand 1343 states and 1555 transitions. [2024-09-12 18:00:58,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2024-09-12 18:00:58,662 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:00:58,662 INFO L216 NwaCegarLoop]: trace histogram [22, 22, 22, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:00:58,677 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2024-09-12 18:00:58,862 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,38 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:58,863 INFO L399 AbstractCegarLoop]: === Iteration 44 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:00:58,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:58,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1683857236, now seen corresponding path program 24 times [2024-09-12 18:00:58,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:00:58,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708511600] [2024-09-12 18:00:58,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:00:58,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:00:58,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:59,931 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:00:59,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:59,932 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-09-12 18:00:59,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:59,934 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 18:00:59,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:59,935 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-09-12 18:00:59,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:59,936 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-09-12 18:00:59,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:59,937 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-09-12 18:00:59,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:59,939 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-09-12 18:00:59,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:59,940 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-09-12 18:00:59,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:59,944 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-09-12 18:00:59,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:59,946 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-09-12 18:00:59,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:59,947 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2024-09-12 18:00:59,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:59,950 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2024-09-12 18:00:59,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:59,953 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2024-09-12 18:00:59,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:59,954 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2024-09-12 18:00:59,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:59,955 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2024-09-12 18:00:59,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:59,956 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2024-09-12 18:00:59,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:59,957 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2024-09-12 18:00:59,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:59,958 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2024-09-12 18:00:59,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:59,959 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2024-09-12 18:00:59,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:59,960 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2024-09-12 18:00:59,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:59,961 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2024-09-12 18:00:59,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:59,962 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2024-09-12 18:00:59,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:59,964 INFO L134 CoverageAnalysis]: Checked inductivity of 3994 backedges. 1814 proven. 1340 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-09-12 18:00:59,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:00:59,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708511600] [2024-09-12 18:00:59,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708511600] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:00:59,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1158178323] [2024-09-12 18:00:59,964 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 18:00:59,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:59,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:00:59,965 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:00:59,966 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-09-12 18:01:00,129 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 22 check-sat command(s) [2024-09-12 18:01:00,129 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:01:00,132 INFO L262 TraceCheckSpWp]: Trace formula consists of 818 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-09-12 18:01:00,137 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:01,208 INFO L134 CoverageAnalysis]: Checked inductivity of 3994 backedges. 1974 proven. 1180 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-09-12 18:01:01,208 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:01:02,034 INFO L134 CoverageAnalysis]: Checked inductivity of 3994 backedges. 1974 proven. 1180 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-09-12 18:01:02,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1158178323] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:01:02,034 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:01:02,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45, 45] total 71 [2024-09-12 18:01:02,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002250485] [2024-09-12 18:01:02,035 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:01:02,035 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2024-09-12 18:01:02,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:02,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2024-09-12 18:01:02,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1154, Invalid=3816, Unknown=0, NotChecked=0, Total=4970 [2024-09-12 18:01:02,038 INFO L87 Difference]: Start difference. First operand 1343 states and 1555 transitions. Second operand has 71 states, 71 states have (on average 7.084507042253521) internal successors, (503), 71 states have internal predecessors, (503), 46 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-09-12 18:01:05,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:05,276 INFO L93 Difference]: Finished difference Result 2003 states and 2333 transitions. [2024-09-12 18:01:05,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2024-09-12 18:01:05,277 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 71 states have (on average 7.084507042253521) internal successors, (503), 71 states have internal predecessors, (503), 46 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) Word has length 410 [2024-09-12 18:01:05,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:05,282 INFO L225 Difference]: With dead ends: 2003 [2024-09-12 18:01:05,283 INFO L226 Difference]: Without dead ends: 1453 [2024-09-12 18:01:05,286 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 992 GetRequests, 800 SyntacticMatches, 39 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7329 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=6326, Invalid=17544, Unknown=0, NotChecked=0, Total=23870 [2024-09-12 18:01:05,287 INFO L434 NwaCegarLoop]: 118 mSDtfsCounter, 556 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 556 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 1540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:05,287 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [556 Valid, 966 Invalid, 1540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:01:05,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1453 states. [2024-09-12 18:01:05,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1453 to 1343. [2024-09-12 18:01:05,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1343 states, 1242 states have (on average 1.1223832528180355) internal successors, (1394), 1246 states have internal predecessors, (1394), 80 states have call successors, (80), 17 states have call predecessors, (80), 16 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-09-12 18:01:05,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1343 states to 1343 states and 1553 transitions. [2024-09-12 18:01:05,781 INFO L78 Accepts]: Start accepts. Automaton has 1343 states and 1553 transitions. Word has length 410 [2024-09-12 18:01:05,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:05,781 INFO L474 AbstractCegarLoop]: Abstraction has 1343 states and 1553 transitions. [2024-09-12 18:01:05,781 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 71 states have (on average 7.084507042253521) internal successors, (503), 71 states have internal predecessors, (503), 46 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-09-12 18:01:05,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:05,781 INFO L276 IsEmpty]: Start isEmpty. Operand 1343 states and 1553 transitions. [2024-09-12 18:01:05,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2024-09-12 18:01:05,795 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:05,796 INFO L216 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:01:05,812 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2024-09-12 18:01:05,996 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-09-12 18:01:05,996 INFO L399 AbstractCegarLoop]: === Iteration 45 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:01:05,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:05,997 INFO L85 PathProgramCache]: Analyzing trace with hash -436193726, now seen corresponding path program 25 times [2024-09-12 18:01:05,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:05,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446668977] [2024-09-12 18:01:05,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:05,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:06,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:06,794 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:06,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:06,795 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-09-12 18:01:06,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:06,797 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-09-12 18:01:06,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:06,798 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-09-12 18:01:06,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:06,799 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-09-12 18:01:06,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:06,801 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-09-12 18:01:06,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:06,802 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-09-12 18:01:06,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:06,803 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-09-12 18:01:06,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:06,804 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2024-09-12 18:01:06,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:06,805 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-09-12 18:01:06,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:06,806 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2024-09-12 18:01:06,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:06,807 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2024-09-12 18:01:06,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:06,808 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2024-09-12 18:01:06,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:06,809 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2024-09-12 18:01:06,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:06,810 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2024-09-12 18:01:06,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:06,811 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2024-09-12 18:01:06,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:06,811 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2024-09-12 18:01:06,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:06,813 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2024-09-12 18:01:06,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:06,814 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2024-09-12 18:01:06,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:06,815 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2024-09-12 18:01:06,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:06,816 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2024-09-12 18:01:06,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:06,818 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2024-09-12 18:01:06,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:06,820 INFO L134 CoverageAnalysis]: Checked inductivity of 4244 backedges. 1344 proven. 2060 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-09-12 18:01:06,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:06,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446668977] [2024-09-12 18:01:06,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446668977] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:01:06,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1699711957] [2024-09-12 18:01:06,820 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 18:01:06,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:06,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:06,822 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:01:06,823 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-09-12 18:01:06,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:06,973 INFO L262 TraceCheckSpWp]: Trace formula consists of 846 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-09-12 18:01:06,977 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:07,359 INFO L134 CoverageAnalysis]: Checked inductivity of 4244 backedges. 1472 proven. 1932 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-09-12 18:01:07,360 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:01:08,030 INFO L134 CoverageAnalysis]: Checked inductivity of 4244 backedges. 1472 proven. 1932 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-09-12 18:01:08,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1699711957] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:01:08,031 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:01:08,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27] total 31 [2024-09-12 18:01:08,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995923384] [2024-09-12 18:01:08,031 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:01:08,032 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-09-12 18:01:08,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:08,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-09-12 18:01:08,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=339, Invalid=591, Unknown=0, NotChecked=0, Total=930 [2024-09-12 18:01:08,033 INFO L87 Difference]: Start difference. First operand 1343 states and 1553 transitions. Second operand has 31 states, 31 states have (on average 11.290322580645162) internal successors, (350), 29 states have internal predecessors, (350), 24 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 18:01:08,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:08,822 INFO L93 Difference]: Finished difference Result 1350 states and 1558 transitions. [2024-09-12 18:01:08,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-09-12 18:01:08,823 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 11.290322580645162) internal successors, (350), 29 states have internal predecessors, (350), 24 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Word has length 422 [2024-09-12 18:01:08,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:08,827 INFO L225 Difference]: With dead ends: 1350 [2024-09-12 18:01:08,828 INFO L226 Difference]: Without dead ends: 1347 [2024-09-12 18:01:08,828 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 936 GetRequests, 861 SyntacticMatches, 45 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 871 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=345, Invalid=647, Unknown=0, NotChecked=0, Total=992 [2024-09-12 18:01:08,828 INFO L434 NwaCegarLoop]: 118 mSDtfsCounter, 27 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 971 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:08,828 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 971 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:01:08,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1347 states. [2024-09-12 18:01:09,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1347 to 1347. [2024-09-12 18:01:09,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1347 states, 1245 states have (on average 1.118875502008032) internal successors, (1393), 1249 states have internal predecessors, (1393), 80 states have call successors, (80), 18 states have call predecessors, (80), 17 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-09-12 18:01:09,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1347 states to 1347 states and 1552 transitions. [2024-09-12 18:01:09,392 INFO L78 Accepts]: Start accepts. Automaton has 1347 states and 1552 transitions. Word has length 422 [2024-09-12 18:01:09,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:09,393 INFO L474 AbstractCegarLoop]: Abstraction has 1347 states and 1552 transitions. [2024-09-12 18:01:09,393 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 11.290322580645162) internal successors, (350), 29 states have internal predecessors, (350), 24 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 18:01:09,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:09,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1347 states and 1552 transitions. [2024-09-12 18:01:09,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2024-09-12 18:01:09,395 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:09,395 INFO L216 NwaCegarLoop]: trace histogram [24, 24, 24, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:01:09,414 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2024-09-12 18:01:09,596 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-09-12 18:01:09,596 INFO L399 AbstractCegarLoop]: === Iteration 46 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:01:09,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:09,597 INFO L85 PathProgramCache]: Analyzing trace with hash -333200990, now seen corresponding path program 26 times [2024-09-12 18:01:09,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:09,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677024926] [2024-09-12 18:01:09,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:09,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:09,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,817 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:10,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,818 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-09-12 18:01:10,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,820 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-09-12 18:01:10,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,820 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-09-12 18:01:10,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,821 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-09-12 18:01:10,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,822 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-09-12 18:01:10,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,824 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-09-12 18:01:10,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,825 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-09-12 18:01:10,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,826 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2024-09-12 18:01:10,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,827 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-09-12 18:01:10,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,828 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2024-09-12 18:01:10,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,829 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2024-09-12 18:01:10,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,830 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2024-09-12 18:01:10,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,831 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2024-09-12 18:01:10,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,832 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2024-09-12 18:01:10,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,833 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2024-09-12 18:01:10,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,834 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2024-09-12 18:01:10,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,835 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2024-09-12 18:01:10,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,836 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2024-09-12 18:01:10,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,837 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2024-09-12 18:01:10,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,838 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2024-09-12 18:01:10,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,839 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2024-09-12 18:01:10,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,840 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2024-09-12 18:01:10,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,841 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2024-09-12 18:01:10,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,843 INFO L134 CoverageAnalysis]: Checked inductivity of 4811 backedges. 2193 proven. 1606 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-09-12 18:01:10,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:10,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677024926] [2024-09-12 18:01:10,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677024926] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:01:10,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265101285] [2024-09-12 18:01:10,844 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:01:10,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:10,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:10,845 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:01:10,846 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-09-12 18:01:10,998 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:01:10,998 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:01:11,001 INFO L262 TraceCheckSpWp]: Trace formula consists of 892 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-09-12 18:01:11,005 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:12,181 INFO L134 CoverageAnalysis]: Checked inductivity of 4811 backedges. 2453 proven. 1430 refuted. 0 times theorem prover too weak. 928 trivial. 0 not checked. [2024-09-12 18:01:12,181 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:01:13,075 INFO L134 CoverageAnalysis]: Checked inductivity of 4811 backedges. 2367 proven. 1430 refuted. 0 times theorem prover too weak. 1014 trivial. 0 not checked. [2024-09-12 18:01:13,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [265101285] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:01:13,076 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:01:13,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 48, 48] total 74 [2024-09-12 18:01:13,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402785802] [2024-09-12 18:01:13,076 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:01:13,077 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2024-09-12 18:01:13,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:13,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2024-09-12 18:01:13,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1228, Invalid=4174, Unknown=0, NotChecked=0, Total=5402 [2024-09-12 18:01:13,079 INFO L87 Difference]: Start difference. First operand 1347 states and 1552 transitions. Second operand has 74 states, 74 states have (on average 7.1891891891891895) internal successors, (532), 74 states have internal predecessors, (532), 48 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (49), 48 states have call predecessors, (49), 48 states have call successors, (49) [2024-09-12 18:01:15,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:15,376 INFO L93 Difference]: Finished difference Result 1822 states and 2124 transitions. [2024-09-12 18:01:15,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2024-09-12 18:01:15,377 INFO L78 Accepts]: Start accepts. Automaton has has 74 states, 74 states have (on average 7.1891891891891895) internal successors, (532), 74 states have internal predecessors, (532), 48 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (49), 48 states have call predecessors, (49), 48 states have call successors, (49) Word has length 448 [2024-09-12 18:01:15,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:15,384 INFO L225 Difference]: With dead ends: 1822 [2024-09-12 18:01:15,384 INFO L226 Difference]: Without dead ends: 1462 [2024-09-12 18:01:15,388 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1037 GetRequests, 876 SyntacticMatches, 44 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4061 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=3833, Invalid=10209, Unknown=0, NotChecked=0, Total=14042 [2024-09-12 18:01:15,389 INFO L434 NwaCegarLoop]: 128 mSDtfsCounter, 419 mSDsluCounter, 1035 mSDsCounter, 0 mSdLazyCounter, 1490 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 1600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:15,389 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 1163 Invalid, 1600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1490 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:01:15,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1462 states. [2024-09-12 18:01:15,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1462 to 1347. [2024-09-12 18:01:15,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1347 states, 1245 states have (on average 1.1180722891566266) internal successors, (1392), 1249 states have internal predecessors, (1392), 80 states have call successors, (80), 18 states have call predecessors, (80), 17 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-09-12 18:01:15,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1347 states to 1347 states and 1551 transitions. [2024-09-12 18:01:15,911 INFO L78 Accepts]: Start accepts. Automaton has 1347 states and 1551 transitions. Word has length 448 [2024-09-12 18:01:15,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:15,912 INFO L474 AbstractCegarLoop]: Abstraction has 1347 states and 1551 transitions. [2024-09-12 18:01:15,912 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 74 states have (on average 7.1891891891891895) internal successors, (532), 74 states have internal predecessors, (532), 48 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (49), 48 states have call predecessors, (49), 48 states have call successors, (49) [2024-09-12 18:01:15,912 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:15,912 INFO L276 IsEmpty]: Start isEmpty. Operand 1347 states and 1551 transitions. [2024-09-12 18:01:15,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2024-09-12 18:01:15,915 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:15,915 INFO L216 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:01:15,936 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2024-09-12 18:01:16,115 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-09-12 18:01:16,116 INFO L399 AbstractCegarLoop]: === Iteration 47 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:01:16,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:16,116 INFO L85 PathProgramCache]: Analyzing trace with hash 675469945, now seen corresponding path program 27 times [2024-09-12 18:01:16,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:16,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279566602] [2024-09-12 18:01:16,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:16,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:16,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:17,421 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:17,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:17,422 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-09-12 18:01:17,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:17,424 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-09-12 18:01:17,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:17,425 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-09-12 18:01:17,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:17,426 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-09-12 18:01:17,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:17,427 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-09-12 18:01:17,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:17,428 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-09-12 18:01:17,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:17,429 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2024-09-12 18:01:17,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:17,430 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-09-12 18:01:17,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:17,431 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2024-09-12 18:01:17,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:17,432 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2024-09-12 18:01:17,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:17,433 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2024-09-12 18:01:17,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:17,435 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2024-09-12 18:01:17,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:17,436 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2024-09-12 18:01:17,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:17,437 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2024-09-12 18:01:17,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:17,439 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2024-09-12 18:01:17,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:17,441 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2024-09-12 18:01:17,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:17,442 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2024-09-12 18:01:17,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:17,444 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2024-09-12 18:01:17,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:17,445 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2024-09-12 18:01:17,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:17,446 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2024-09-12 18:01:17,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:17,448 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2024-09-12 18:01:17,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:17,449 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2024-09-12 18:01:17,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:17,451 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2024-09-12 18:01:17,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:17,453 INFO L134 CoverageAnalysis]: Checked inductivity of 4945 backedges. 2193 proven. 1740 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-09-12 18:01:17,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:17,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279566602] [2024-09-12 18:01:17,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279566602] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:01:17,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [34307226] [2024-09-12 18:01:17,454 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:01:17,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:17,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:17,456 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:01:17,458 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-09-12 18:01:17,638 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 24 check-sat command(s) [2024-09-12 18:01:17,638 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:01:17,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 906 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-09-12 18:01:17,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:18,885 INFO L134 CoverageAnalysis]: Checked inductivity of 4945 backedges. 2369 proven. 1564 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-09-12 18:01:18,885 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:01:19,840 INFO L134 CoverageAnalysis]: Checked inductivity of 4945 backedges. 2369 proven. 1564 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-09-12 18:01:19,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [34307226] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:01:19,840 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:01:19,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50, 50] total 76 [2024-09-12 18:01:19,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540055065] [2024-09-12 18:01:19,841 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:01:19,841 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2024-09-12 18:01:19,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:19,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2024-09-12 18:01:19,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1303, Invalid=4397, Unknown=0, NotChecked=0, Total=5700 [2024-09-12 18:01:19,843 INFO L87 Difference]: Start difference. First operand 1347 states and 1551 transitions. Second operand has 76 states, 76 states have (on average 7.052631578947368) internal successors, (536), 76 states have internal predecessors, (536), 49 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-09-12 18:01:22,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:22,249 INFO L93 Difference]: Finished difference Result 1823 states and 2127 transitions. [2024-09-12 18:01:22,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2024-09-12 18:01:22,249 INFO L78 Accepts]: Start accepts. Automaton has has 76 states, 76 states have (on average 7.052631578947368) internal successors, (536), 76 states have internal predecessors, (536), 49 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Word has length 454 [2024-09-12 18:01:22,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:22,254 INFO L225 Difference]: With dead ends: 1823 [2024-09-12 18:01:22,254 INFO L226 Difference]: Without dead ends: 1467 [2024-09-12 18:01:22,258 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1052 GetRequests, 885 SyntacticMatches, 46 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4289 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=4141, Invalid=10865, Unknown=0, NotChecked=0, Total=15006 [2024-09-12 18:01:22,258 INFO L434 NwaCegarLoop]: 133 mSDtfsCounter, 422 mSDsluCounter, 1083 mSDsCounter, 0 mSdLazyCounter, 1505 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 1216 SdHoareTripleChecker+Invalid, 1617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:22,258 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 1216 Invalid, 1617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1505 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:01:22,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1467 states. [2024-09-12 18:01:22,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1467 to 1347. [2024-09-12 18:01:22,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1347 states, 1245 states have (on average 1.1172690763052209) internal successors, (1391), 1249 states have internal predecessors, (1391), 80 states have call successors, (80), 18 states have call predecessors, (80), 17 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-09-12 18:01:22,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1347 states to 1347 states and 1550 transitions. [2024-09-12 18:01:22,878 INFO L78 Accepts]: Start accepts. Automaton has 1347 states and 1550 transitions. Word has length 454 [2024-09-12 18:01:22,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:22,879 INFO L474 AbstractCegarLoop]: Abstraction has 1347 states and 1550 transitions. [2024-09-12 18:01:22,879 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 76 states, 76 states have (on average 7.052631578947368) internal successors, (536), 76 states have internal predecessors, (536), 49 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-09-12 18:01:22,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:22,879 INFO L276 IsEmpty]: Start isEmpty. Operand 1347 states and 1550 transitions. [2024-09-12 18:01:22,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2024-09-12 18:01:22,882 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:22,882 INFO L216 NwaCegarLoop]: trace histogram [25, 24, 24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:01:22,902 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2024-09-12 18:01:23,083 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,42 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:23,083 INFO L399 AbstractCegarLoop]: === Iteration 48 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:01:23,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:23,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1811171824, now seen corresponding path program 28 times [2024-09-12 18:01:23,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:23,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048140215] [2024-09-12 18:01:23,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:23,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:23,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:24,120 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:24,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:24,121 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 18:01:24,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:24,123 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 18:01:24,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:24,124 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 18:01:24,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:24,125 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-09-12 18:01:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:24,126 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-09-12 18:01:24,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:24,127 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-09-12 18:01:24,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:24,128 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2024-09-12 18:01:24,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:24,129 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-09-12 18:01:24,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:24,131 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2024-09-12 18:01:24,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:24,132 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2024-09-12 18:01:24,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:24,133 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2024-09-12 18:01:24,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:24,133 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2024-09-12 18:01:24,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:24,134 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2024-09-12 18:01:24,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:24,135 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2024-09-12 18:01:24,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:24,136 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2024-09-12 18:01:24,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:24,137 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-09-12 18:01:24,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:24,138 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2024-09-12 18:01:24,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:24,139 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2024-09-12 18:01:24,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:24,140 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2024-09-12 18:01:24,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:24,142 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2024-09-12 18:01:24,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:24,143 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2024-09-12 18:01:24,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:24,143 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2024-09-12 18:01:24,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:24,144 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2024-09-12 18:01:24,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:24,146 INFO L134 CoverageAnalysis]: Checked inductivity of 5085 backedges. 1610 proven. 2463 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-09-12 18:01:24,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:24,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048140215] [2024-09-12 18:01:24,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048140215] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:01:24,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456726340] [2024-09-12 18:01:24,146 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 18:01:24,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:24,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:24,148 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:01:24,149 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-09-12 18:01:24,326 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 18:01:24,326 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:01:24,332 INFO L262 TraceCheckSpWp]: Trace formula consists of 920 conjuncts, 54 conjuncts are in the unsatisfiable core [2024-09-12 18:01:24,338 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:24,665 INFO L134 CoverageAnalysis]: Checked inductivity of 5085 backedges. 1750 proven. 2323 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-09-12 18:01:24,666 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:01:25,398 INFO L134 CoverageAnalysis]: Checked inductivity of 5085 backedges. 1750 proven. 2323 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-09-12 18:01:25,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1456726340] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:01:25,399 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:01:25,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29, 29] total 33 [2024-09-12 18:01:25,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511414772] [2024-09-12 18:01:25,399 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:01:25,400 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-09-12 18:01:25,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:25,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-09-12 18:01:25,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=392, Invalid=664, Unknown=0, NotChecked=0, Total=1056 [2024-09-12 18:01:25,401 INFO L87 Difference]: Start difference. First operand 1347 states and 1550 transitions. Second operand has 33 states, 33 states have (on average 11.454545454545455) internal successors, (378), 31 states have internal predecessors, (378), 26 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-09-12 18:01:26,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:26,167 INFO L93 Difference]: Finished difference Result 1354 states and 1555 transitions. [2024-09-12 18:01:26,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-09-12 18:01:26,168 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 11.454545454545455) internal successors, (378), 31 states have internal predecessors, (378), 26 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Word has length 460 [2024-09-12 18:01:26,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:26,172 INFO L225 Difference]: With dead ends: 1354 [2024-09-12 18:01:26,173 INFO L226 Difference]: Without dead ends: 1351 [2024-09-12 18:01:26,173 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1020 GetRequests, 941 SyntacticMatches, 47 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 949 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=398, Invalid=724, Unknown=0, NotChecked=0, Total=1122 [2024-09-12 18:01:26,173 INFO L434 NwaCegarLoop]: 126 mSDtfsCounter, 26 mSDsluCounter, 925 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 1051 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:26,174 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 1051 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:01:26,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1351 states. [2024-09-12 18:01:26,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1351 to 1351. [2024-09-12 18:01:26,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1351 states, 1248 states have (on average 1.1137820512820513) internal successors, (1390), 1252 states have internal predecessors, (1390), 80 states have call successors, (80), 19 states have call predecessors, (80), 18 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-09-12 18:01:26,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1351 states to 1351 states and 1549 transitions. [2024-09-12 18:01:26,696 INFO L78 Accepts]: Start accepts. Automaton has 1351 states and 1549 transitions. Word has length 460 [2024-09-12 18:01:26,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:26,696 INFO L474 AbstractCegarLoop]: Abstraction has 1351 states and 1549 transitions. [2024-09-12 18:01:26,697 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 11.454545454545455) internal successors, (378), 31 states have internal predecessors, (378), 26 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-09-12 18:01:26,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:26,697 INFO L276 IsEmpty]: Start isEmpty. Operand 1351 states and 1549 transitions. [2024-09-12 18:01:26,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2024-09-12 18:01:26,699 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:26,699 INFO L216 NwaCegarLoop]: trace histogram [26, 26, 26, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:01:26,714 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2024-09-12 18:01:26,899 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,43 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:26,900 INFO L399 AbstractCegarLoop]: === Iteration 49 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:01:26,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:26,900 INFO L85 PathProgramCache]: Analyzing trace with hash 687471600, now seen corresponding path program 29 times [2024-09-12 18:01:26,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:26,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379801499] [2024-09-12 18:01:26,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:26,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:26,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:28,386 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:28,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:28,387 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 18:01:28,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:28,389 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 18:01:28,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:28,390 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 18:01:28,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:28,392 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-09-12 18:01:28,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:28,393 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-09-12 18:01:28,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:28,394 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-09-12 18:01:28,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:28,395 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2024-09-12 18:01:28,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:28,396 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-09-12 18:01:28,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:28,397 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2024-09-12 18:01:28,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:28,398 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2024-09-12 18:01:28,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:28,399 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2024-09-12 18:01:28,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:28,401 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2024-09-12 18:01:28,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:28,402 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2024-09-12 18:01:28,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:28,403 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2024-09-12 18:01:28,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:28,404 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2024-09-12 18:01:28,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:28,405 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-09-12 18:01:28,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:28,406 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2024-09-12 18:01:28,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:28,407 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2024-09-12 18:01:28,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:28,408 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2024-09-12 18:01:28,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:28,409 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2024-09-12 18:01:28,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:28,410 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2024-09-12 18:01:28,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:28,411 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2024-09-12 18:01:28,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:28,412 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2024-09-12 18:01:28,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:28,413 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2024-09-12 18:01:28,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:28,414 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 469 [2024-09-12 18:01:28,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:28,416 INFO L134 CoverageAnalysis]: Checked inductivity of 5704 backedges. 2608 proven. 1896 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-09-12 18:01:28,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:28,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379801499] [2024-09-12 18:01:28,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379801499] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:01:28,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669792910] [2024-09-12 18:01:28,416 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 18:01:28,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:28,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:28,418 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:01:28,419 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-09-12 18:01:28,611 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 26 check-sat command(s) [2024-09-12 18:01:28,611 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:01:28,615 INFO L262 TraceCheckSpWp]: Trace formula consists of 966 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-09-12 18:01:28,620 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:30,007 INFO L134 CoverageAnalysis]: Checked inductivity of 5704 backedges. 2800 proven. 1704 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-09-12 18:01:30,008 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:01:31,077 INFO L134 CoverageAnalysis]: Checked inductivity of 5704 backedges. 2800 proven. 1704 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-09-12 18:01:31,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669792910] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:01:31,078 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:01:31,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53, 53] total 83 [2024-09-12 18:01:31,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111752433] [2024-09-12 18:01:31,078 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:01:31,079 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2024-09-12 18:01:31,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:31,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2024-09-12 18:01:31,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1570, Invalid=5236, Unknown=0, NotChecked=0, Total=6806 [2024-09-12 18:01:31,081 INFO L87 Difference]: Start difference. First operand 1351 states and 1549 transitions. Second operand has 83 states, 83 states have (on average 7.120481927710843) internal successors, (591), 83 states have internal predecessors, (591), 54 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-09-12 18:01:35,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:35,281 INFO L93 Difference]: Finished difference Result 2067 states and 2391 transitions. [2024-09-12 18:01:35,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2024-09-12 18:01:35,281 INFO L78 Accepts]: Start accepts. Automaton has has 83 states, 83 states have (on average 7.120481927710843) internal successors, (591), 83 states have internal predecessors, (591), 54 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) Word has length 486 [2024-09-12 18:01:35,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:35,286 INFO L225 Difference]: With dead ends: 2067 [2024-09-12 18:01:35,286 INFO L226 Difference]: Without dead ends: 1481 [2024-09-12 18:01:35,290 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1176 GetRequests, 948 SyntacticMatches, 47 SemanticMatches, 181 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10257 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=8826, Invalid=24480, Unknown=0, NotChecked=0, Total=33306 [2024-09-12 18:01:35,290 INFO L434 NwaCegarLoop]: 138 mSDtfsCounter, 653 mSDsluCounter, 1340 mSDsCounter, 0 mSdLazyCounter, 2140 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 1478 SdHoareTripleChecker+Invalid, 2315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 2140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:35,290 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 1478 Invalid, 2315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 2140 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 18:01:35,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1481 states. [2024-09-12 18:01:35,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1481 to 1351. [2024-09-12 18:01:35,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1351 states, 1248 states have (on average 1.1121794871794872) internal successors, (1388), 1252 states have internal predecessors, (1388), 80 states have call successors, (80), 19 states have call predecessors, (80), 18 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-09-12 18:01:35,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1351 states to 1351 states and 1547 transitions. [2024-09-12 18:01:35,810 INFO L78 Accepts]: Start accepts. Automaton has 1351 states and 1547 transitions. Word has length 486 [2024-09-12 18:01:35,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:35,811 INFO L474 AbstractCegarLoop]: Abstraction has 1351 states and 1547 transitions. [2024-09-12 18:01:35,811 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 83 states have (on average 7.120481927710843) internal successors, (591), 83 states have internal predecessors, (591), 54 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-09-12 18:01:35,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:35,811 INFO L276 IsEmpty]: Start isEmpty. Operand 1351 states and 1547 transitions. [2024-09-12 18:01:35,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2024-09-12 18:01:35,813 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:35,813 INFO L216 NwaCegarLoop]: trace histogram [27, 26, 26, 26, 26, 26, 26, 26, 26, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:01:35,827 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2024-09-12 18:01:36,014 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-09-12 18:01:36,014 INFO L399 AbstractCegarLoop]: === Iteration 50 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:01:36,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:36,014 INFO L85 PathProgramCache]: Analyzing trace with hash -172675618, now seen corresponding path program 30 times [2024-09-12 18:01:36,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:36,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958713729] [2024-09-12 18:01:36,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:36,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:36,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,109 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:37,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,110 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-09-12 18:01:37,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,111 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-09-12 18:01:37,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,112 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-09-12 18:01:37,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,113 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-09-12 18:01:37,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,114 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-09-12 18:01:37,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,115 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-09-12 18:01:37,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,116 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2024-09-12 18:01:37,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,117 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-09-12 18:01:37,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,118 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2024-09-12 18:01:37,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,119 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2024-09-12 18:01:37,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,120 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2024-09-12 18:01:37,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,121 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2024-09-12 18:01:37,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,122 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2024-09-12 18:01:37,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,123 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2024-09-12 18:01:37,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,124 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2024-09-12 18:01:37,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,125 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-09-12 18:01:37,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,126 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2024-09-12 18:01:37,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,127 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2024-09-12 18:01:37,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,127 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2024-09-12 18:01:37,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,128 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2024-09-12 18:01:37,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,129 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2024-09-12 18:01:37,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,130 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2024-09-12 18:01:37,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,131 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2024-09-12 18:01:37,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,132 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2024-09-12 18:01:37,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,133 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 481 [2024-09-12 18:01:37,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:37,134 INFO L134 CoverageAnalysis]: Checked inductivity of 6002 backedges. 1900 proven. 2902 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-09-12 18:01:37,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:37,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958713729] [2024-09-12 18:01:37,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958713729] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:01:37,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510594285] [2024-09-12 18:01:37,134 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 18:01:37,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:37,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:37,136 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:01:37,137 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-09-12 18:01:37,329 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 27 check-sat command(s) [2024-09-12 18:01:37,329 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:01:37,332 INFO L262 TraceCheckSpWp]: Trace formula consists of 994 conjuncts, 55 conjuncts are in the unsatisfiable core [2024-09-12 18:01:37,337 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:37,699 INFO L134 CoverageAnalysis]: Checked inductivity of 6002 backedges. 2052 proven. 2750 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-09-12 18:01:37,699 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:01:38,569 INFO L134 CoverageAnalysis]: Checked inductivity of 6002 backedges. 2052 proven. 2750 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-09-12 18:01:38,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510594285] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:01:38,570 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:01:38,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31, 31] total 35 [2024-09-12 18:01:38,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657261529] [2024-09-12 18:01:38,570 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:01:38,571 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-09-12 18:01:38,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:38,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-09-12 18:01:38,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=449, Invalid=741, Unknown=0, NotChecked=0, Total=1190 [2024-09-12 18:01:38,572 INFO L87 Difference]: Start difference. First operand 1351 states and 1547 transitions. Second operand has 35 states, 35 states have (on average 11.6) internal successors, (406), 33 states have internal predecessors, (406), 28 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-09-12 18:01:39,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:39,314 INFO L93 Difference]: Finished difference Result 1358 states and 1552 transitions. [2024-09-12 18:01:39,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-09-12 18:01:39,314 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 11.6) internal successors, (406), 33 states have internal predecessors, (406), 28 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Word has length 498 [2024-09-12 18:01:39,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:39,318 INFO L225 Difference]: With dead ends: 1358 [2024-09-12 18:01:39,318 INFO L226 Difference]: Without dead ends: 1355 [2024-09-12 18:01:39,319 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1104 GetRequests, 1017 SyntacticMatches, 53 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1135 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=455, Invalid=805, Unknown=0, NotChecked=0, Total=1260 [2024-09-12 18:01:39,319 INFO L434 NwaCegarLoop]: 134 mSDtfsCounter, 22 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:39,319 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 1038 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:01:39,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1355 states. [2024-09-12 18:01:39,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1355 to 1355. [2024-09-12 18:01:39,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1355 states, 1251 states have (on average 1.108713029576339) internal successors, (1387), 1255 states have internal predecessors, (1387), 80 states have call successors, (80), 20 states have call predecessors, (80), 19 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-09-12 18:01:39,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1355 states to 1355 states and 1546 transitions. [2024-09-12 18:01:39,892 INFO L78 Accepts]: Start accepts. Automaton has 1355 states and 1546 transitions. Word has length 498 [2024-09-12 18:01:39,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:39,893 INFO L474 AbstractCegarLoop]: Abstraction has 1355 states and 1546 transitions. [2024-09-12 18:01:39,893 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 11.6) internal successors, (406), 33 states have internal predecessors, (406), 28 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-09-12 18:01:39,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:39,893 INFO L276 IsEmpty]: Start isEmpty. Operand 1355 states and 1546 transitions. [2024-09-12 18:01:39,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2024-09-12 18:01:39,895 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:39,895 INFO L216 NwaCegarLoop]: trace histogram [28, 28, 28, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 26, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:01:39,909 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2024-09-12 18:01:40,096 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-09-12 18:01:40,096 INFO L399 AbstractCegarLoop]: === Iteration 51 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:01:40,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:40,096 INFO L85 PathProgramCache]: Analyzing trace with hash 661139006, now seen corresponding path program 31 times [2024-09-12 18:01:40,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:40,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917023085] [2024-09-12 18:01:40,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:40,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:40,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,760 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:41,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,761 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-09-12 18:01:41,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,762 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-09-12 18:01:41,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,763 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-09-12 18:01:41,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,764 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-09-12 18:01:41,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,765 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-09-12 18:01:41,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,766 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-09-12 18:01:41,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,767 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2024-09-12 18:01:41,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,768 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-09-12 18:01:41,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,769 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2024-09-12 18:01:41,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,770 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2024-09-12 18:01:41,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,771 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2024-09-12 18:01:41,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,772 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2024-09-12 18:01:41,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,773 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2024-09-12 18:01:41,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,774 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2024-09-12 18:01:41,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,775 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2024-09-12 18:01:41,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,776 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-09-12 18:01:41,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,777 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2024-09-12 18:01:41,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,778 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2024-09-12 18:01:41,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,779 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2024-09-12 18:01:41,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,780 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2024-09-12 18:01:41,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,781 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2024-09-12 18:01:41,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,782 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2024-09-12 18:01:41,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,783 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2024-09-12 18:01:41,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,783 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2024-09-12 18:01:41,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,785 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 481 [2024-09-12 18:01:41,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,786 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2024-09-12 18:01:41,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,787 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 507 [2024-09-12 18:01:41,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,789 INFO L134 CoverageAnalysis]: Checked inductivity of 6673 backedges. 3059 proven. 2210 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-09-12 18:01:41,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:41,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917023085] [2024-09-12 18:01:41,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917023085] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:01:41,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1300268258] [2024-09-12 18:01:41,790 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 18:01:41,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:41,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:41,791 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:01:41,792 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-09-12 18:01:41,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:41,965 INFO L262 TraceCheckSpWp]: Trace formula consists of 1040 conjuncts, 56 conjuncts are in the unsatisfiable core [2024-09-12 18:01:41,970 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:43,538 INFO L134 CoverageAnalysis]: Checked inductivity of 6673 backedges. 3367 proven. 2002 refuted. 0 times theorem prover too weak. 1304 trivial. 0 not checked. [2024-09-12 18:01:43,538 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:01:44,789 INFO L134 CoverageAnalysis]: Checked inductivity of 6673 backedges. 3265 proven. 2002 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2024-09-12 18:01:44,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1300268258] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:01:44,789 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:01:44,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 56, 56] total 86 [2024-09-12 18:01:44,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294861098] [2024-09-12 18:01:44,790 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:01:44,791 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2024-09-12 18:01:44,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:44,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2024-09-12 18:01:44,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1656, Invalid=5654, Unknown=0, NotChecked=0, Total=7310 [2024-09-12 18:01:44,793 INFO L87 Difference]: Start difference. First operand 1355 states and 1546 transitions. Second operand has 86 states, 86 states have (on average 7.209302325581396) internal successors, (620), 86 states have internal predecessors, (620), 56 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (57), 56 states have call predecessors, (57), 56 states have call successors, (57) [2024-09-12 18:01:47,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:47,614 INFO L93 Difference]: Finished difference Result 1850 states and 2142 transitions. [2024-09-12 18:01:47,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2024-09-12 18:01:47,614 INFO L78 Accepts]: Start accepts. Automaton has has 86 states, 86 states have (on average 7.209302325581396) internal successors, (620), 86 states have internal predecessors, (620), 56 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (57), 56 states have call predecessors, (57), 56 states have call successors, (57) Word has length 524 [2024-09-12 18:01:47,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:47,619 INFO L225 Difference]: With dead ends: 1850 [2024-09-12 18:01:47,620 INFO L226 Difference]: Without dead ends: 1490 [2024-09-12 18:01:47,623 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1213 GetRequests, 1024 SyntacticMatches, 52 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5529 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=5253, Invalid=13929, Unknown=0, NotChecked=0, Total=19182 [2024-09-12 18:01:47,624 INFO L434 NwaCegarLoop]: 148 mSDtfsCounter, 513 mSDsluCounter, 1100 mSDsCounter, 0 mSdLazyCounter, 1554 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 1689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 1554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:47,624 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 1248 Invalid, 1689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 1554 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:01:47,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1490 states. [2024-09-12 18:01:48,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1490 to 1355. [2024-09-12 18:01:48,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1355 states, 1251 states have (on average 1.1079136690647482) internal successors, (1386), 1255 states have internal predecessors, (1386), 80 states have call successors, (80), 20 states have call predecessors, (80), 19 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-09-12 18:01:48,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1355 states to 1355 states and 1545 transitions. [2024-09-12 18:01:48,177 INFO L78 Accepts]: Start accepts. Automaton has 1355 states and 1545 transitions. Word has length 524 [2024-09-12 18:01:48,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:48,177 INFO L474 AbstractCegarLoop]: Abstraction has 1355 states and 1545 transitions. [2024-09-12 18:01:48,177 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 86 states have (on average 7.209302325581396) internal successors, (620), 86 states have internal predecessors, (620), 56 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (57), 56 states have call predecessors, (57), 56 states have call successors, (57) [2024-09-12 18:01:48,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:48,178 INFO L276 IsEmpty]: Start isEmpty. Operand 1355 states and 1545 transitions. [2024-09-12 18:01:48,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2024-09-12 18:01:48,180 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:48,180 INFO L216 NwaCegarLoop]: trace histogram [28, 28, 28, 28, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:01:48,194 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2024-09-12 18:01:48,381 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,46 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:48,381 INFO L399 AbstractCegarLoop]: === Iteration 52 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:01:48,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:48,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1102084971, now seen corresponding path program 32 times [2024-09-12 18:01:48,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:48,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142673029] [2024-09-12 18:01:48,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:48,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:48,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,135 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:50,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,136 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 18:01:50,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,138 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-09-12 18:01:50,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,138 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-09-12 18:01:50,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,139 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-09-12 18:01:50,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,140 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-09-12 18:01:50,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,141 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-09-12 18:01:50,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,143 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-09-12 18:01:50,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,144 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2024-09-12 18:01:50,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,147 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2024-09-12 18:01:50,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,148 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2024-09-12 18:01:50,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,149 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2024-09-12 18:01:50,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,149 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2024-09-12 18:01:50,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,150 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2024-09-12 18:01:50,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,151 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2024-09-12 18:01:50,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,152 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2024-09-12 18:01:50,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,153 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2024-09-12 18:01:50,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,154 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2024-09-12 18:01:50,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,155 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2024-09-12 18:01:50,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,156 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2024-09-12 18:01:50,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,157 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2024-09-12 18:01:50,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,158 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 435 [2024-09-12 18:01:50,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,159 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2024-09-12 18:01:50,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,160 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 461 [2024-09-12 18:01:50,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,161 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2024-09-12 18:01:50,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,162 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2024-09-12 18:01:50,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,163 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 500 [2024-09-12 18:01:50,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,164 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 513 [2024-09-12 18:01:50,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,166 INFO L134 CoverageAnalysis]: Checked inductivity of 6831 backedges. 3059 proven. 2368 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-09-12 18:01:50,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:50,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142673029] [2024-09-12 18:01:50,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142673029] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:01:50,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482191370] [2024-09-12 18:01:50,166 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:01:50,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:50,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:50,168 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:01:50,169 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-09-12 18:01:50,347 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:01:50,347 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:01:50,351 INFO L262 TraceCheckSpWp]: Trace formula consists of 1054 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-09-12 18:01:50,356 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:51,562 INFO L134 CoverageAnalysis]: Checked inductivity of 6831 backedges. 2214 proven. 3213 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-09-12 18:01:51,562 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:01:53,536 INFO L134 CoverageAnalysis]: Checked inductivity of 6831 backedges. 2214 proven. 3213 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-09-12 18:01:53,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [482191370] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:01:53,536 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:01:53,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 32, 32] total 88 [2024-09-12 18:01:53,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484104005] [2024-09-12 18:01:53,537 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:01:53,538 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2024-09-12 18:01:53,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:53,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2024-09-12 18:01:53,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1280, Invalid=6376, Unknown=0, NotChecked=0, Total=7656 [2024-09-12 18:01:53,540 INFO L87 Difference]: Start difference. First operand 1355 states and 1545 transitions. Second operand has 88 states, 88 states have (on average 8.897727272727273) internal successors, (783), 87 states have internal predecessors, (783), 57 states have call successors, (58), 3 states have call predecessors, (58), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-09-12 18:01:58,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:58,482 INFO L93 Difference]: Finished difference Result 1855 states and 2149 transitions. [2024-09-12 18:01:58,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 194 states. [2024-09-12 18:01:58,483 INFO L78 Accepts]: Start accepts. Automaton has has 88 states, 88 states have (on average 8.897727272727273) internal successors, (783), 87 states have internal predecessors, (783), 57 states have call successors, (58), 3 states have call predecessors, (58), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) Word has length 530 [2024-09-12 18:01:58,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:58,488 INFO L225 Difference]: With dead ends: 1855 [2024-09-12 18:01:58,488 INFO L226 Difference]: Without dead ends: 1499 [2024-09-12 18:01:58,494 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1364 GetRequests, 1058 SyntacticMatches, 57 SemanticMatches, 249 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25117 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=9536, Invalid=53214, Unknown=0, NotChecked=0, Total=62750 [2024-09-12 18:01:58,495 INFO L434 NwaCegarLoop]: 93 mSDtfsCounter, 948 mSDsluCounter, 1456 mSDsCounter, 0 mSdLazyCounter, 5785 mSolverCounterSat, 225 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 949 SdHoareTripleChecker+Valid, 1549 SdHoareTripleChecker+Invalid, 6010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 225 IncrementalHoareTripleChecker+Valid, 5785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:58,495 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [949 Valid, 1549 Invalid, 6010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [225 Valid, 5785 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-09-12 18:01:58,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1499 states. [2024-09-12 18:01:59,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1499 to 1359. [2024-09-12 18:01:59,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1359 states, 1254 states have (on average 1.1068580542264752) internal successors, (1388), 1258 states have internal predecessors, (1388), 80 states have call successors, (80), 21 states have call predecessors, (80), 20 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-09-12 18:01:59,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1359 states to 1359 states and 1547 transitions. [2024-09-12 18:01:59,059 INFO L78 Accepts]: Start accepts. Automaton has 1359 states and 1547 transitions. Word has length 530 [2024-09-12 18:01:59,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:59,059 INFO L474 AbstractCegarLoop]: Abstraction has 1359 states and 1547 transitions. [2024-09-12 18:01:59,060 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 88 states have (on average 8.897727272727273) internal successors, (783), 87 states have internal predecessors, (783), 57 states have call successors, (58), 3 states have call predecessors, (58), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-09-12 18:01:59,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:59,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1359 states and 1547 transitions. [2024-09-12 18:01:59,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2024-09-12 18:01:59,062 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:59,063 INFO L216 NwaCegarLoop]: trace histogram [29, 29, 29, 29, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:01:59,078 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2024-09-12 18:01:59,263 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,47 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:59,264 INFO L399 AbstractCegarLoop]: === Iteration 53 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:01:59,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:59,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1748343713, now seen corresponding path program 33 times [2024-09-12 18:01:59,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:59,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123700759] [2024-09-12 18:01:59,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:59,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:59,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:01,254 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:02:01,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:01,255 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-09-12 18:02:01,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:01,256 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-09-12 18:02:01,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:01,257 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-09-12 18:02:01,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:01,258 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-09-12 18:02:01,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:01,260 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-09-12 18:02:01,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:01,261 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2024-09-12 18:02:01,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:01,261 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-09-12 18:02:01,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:01,262 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2024-09-12 18:02:01,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:01,263 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2024-09-12 18:02:01,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:01,265 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2024-09-12 18:02:01,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:01,266 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2024-09-12 18:02:01,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:01,267 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2024-09-12 18:02:01,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:01,268 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2024-09-12 18:02:01,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:01,269 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-09-12 18:02:01,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:01,270 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2024-09-12 18:02:01,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:01,271 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2024-09-12 18:02:01,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:01,272 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2024-09-12 18:02:01,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:01,272 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2024-09-12 18:02:01,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:01,274 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2024-09-12 18:02:01,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:01,275 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2024-09-12 18:02:01,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:01,276 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2024-09-12 18:02:01,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:01,277 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2024-09-12 18:02:01,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:01,278 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 467 [2024-09-12 18:02:01,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:01,279 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2024-09-12 18:02:01,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:01,280 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 493 [2024-09-12 18:02:01,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:01,281 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 506 [2024-09-12 18:02:01,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:01,282 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2024-09-12 18:02:01,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:01,304 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 532 [2024-09-12 18:02:01,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:01,306 INFO L134 CoverageAnalysis]: Checked inductivity of 7350 backedges. 3298 proven. 2540 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-09-12 18:02:01,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:02:01,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123700759] [2024-09-12 18:02:01,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123700759] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:02:01,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566488184] [2024-09-12 18:02:01,307 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:02:01,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:02:01,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:02:01,308 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:02:01,309 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-09-12 18:02:01,529 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 29 check-sat command(s) [2024-09-12 18:02:01,530 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:02:01,533 INFO L262 TraceCheckSpWp]: Trace formula consists of 1091 conjuncts, 60 conjuncts are in the unsatisfiable core [2024-09-12 18:02:01,539 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:02:02,802 INFO L134 CoverageAnalysis]: Checked inductivity of 7350 backedges. 2380 proven. 3458 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-09-12 18:02:02,802 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:02:04,931 INFO L134 CoverageAnalysis]: Checked inductivity of 7350 backedges. 2380 proven. 3458 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-09-12 18:02:04,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566488184] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:02:04,932 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:02:04,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 33, 33] total 91 [2024-09-12 18:02:04,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785591355] [2024-09-12 18:02:04,932 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:02:04,933 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 91 states [2024-09-12 18:02:04,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:02:04,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2024-09-12 18:02:04,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1369, Invalid=6821, Unknown=0, NotChecked=0, Total=8190 [2024-09-12 18:02:04,936 INFO L87 Difference]: Start difference. First operand 1359 states and 1547 transitions. Second operand has 91 states, 91 states have (on average 8.912087912087912) internal successors, (811), 90 states have internal predecessors, (811), 59 states have call successors, (60), 3 states have call predecessors, (60), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-09-12 18:02:10,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:02:10,187 INFO L93 Difference]: Finished difference Result 1864 states and 2158 transitions. [2024-09-12 18:02:10,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 201 states. [2024-09-12 18:02:10,188 INFO L78 Accepts]: Start accepts. Automaton has has 91 states, 91 states have (on average 8.912087912087912) internal successors, (811), 90 states have internal predecessors, (811), 59 states have call successors, (60), 3 states have call predecessors, (60), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) Word has length 549 [2024-09-12 18:02:10,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:02:10,193 INFO L225 Difference]: With dead ends: 1864 [2024-09-12 18:02:10,193 INFO L226 Difference]: Without dead ends: 1508 [2024-09-12 18:02:10,198 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1413 GetRequests, 1096 SyntacticMatches, 59 SemanticMatches, 258 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27018 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=10211, Invalid=57129, Unknown=0, NotChecked=0, Total=67340 [2024-09-12 18:02:10,198 INFO L434 NwaCegarLoop]: 96 mSDtfsCounter, 1096 mSDsluCounter, 1230 mSDsCounter, 0 mSdLazyCounter, 5562 mSolverCounterSat, 265 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1097 SdHoareTripleChecker+Valid, 1326 SdHoareTripleChecker+Invalid, 5827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 265 IncrementalHoareTripleChecker+Valid, 5562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:02:10,198 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1097 Valid, 1326 Invalid, 5827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [265 Valid, 5562 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-09-12 18:02:10,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2024-09-12 18:02:10,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 1363. [2024-09-12 18:02:10,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1363 states, 1257 states have (on average 1.1042163882259348) internal successors, (1388), 1261 states have internal predecessors, (1388), 80 states have call successors, (80), 22 states have call predecessors, (80), 21 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-09-12 18:02:10,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1363 states to 1363 states and 1547 transitions. [2024-09-12 18:02:10,825 INFO L78 Accepts]: Start accepts. Automaton has 1363 states and 1547 transitions. Word has length 549 [2024-09-12 18:02:10,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:02:10,825 INFO L474 AbstractCegarLoop]: Abstraction has 1363 states and 1547 transitions. [2024-09-12 18:02:10,826 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 91 states, 91 states have (on average 8.912087912087912) internal successors, (811), 90 states have internal predecessors, (811), 59 states have call successors, (60), 3 states have call predecessors, (60), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-09-12 18:02:10,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:02:10,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1363 states and 1547 transitions. [2024-09-12 18:02:10,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 569 [2024-09-12 18:02:10,828 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:02:10,828 INFO L216 NwaCegarLoop]: trace histogram [30, 30, 30, 30, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:02:10,842 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2024-09-12 18:02:11,029 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,48 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:02:11,029 INFO L399 AbstractCegarLoop]: === Iteration 54 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:02:11,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:02:11,029 INFO L85 PathProgramCache]: Analyzing trace with hash -2071915101, now seen corresponding path program 34 times [2024-09-12 18:02:11,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:02:11,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351172259] [2024-09-12 18:02:11,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:02:11,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:02:11,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:12,973 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:02:12,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:12,974 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-09-12 18:02:12,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:12,975 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-09-12 18:02:12,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:12,976 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-09-12 18:02:12,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:12,977 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-09-12 18:02:12,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:12,978 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2024-09-12 18:02:12,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:12,979 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2024-09-12 18:02:12,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:12,980 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-09-12 18:02:12,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:12,981 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2024-09-12 18:02:12,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:12,982 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2024-09-12 18:02:12,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:12,983 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2024-09-12 18:02:12,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:12,984 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2024-09-12 18:02:12,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:12,985 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2024-09-12 18:02:12,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:12,986 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2024-09-12 18:02:12,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:12,986 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2024-09-12 18:02:12,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:12,987 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2024-09-12 18:02:12,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:12,988 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2024-09-12 18:02:12,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:12,989 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2024-09-12 18:02:12,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:12,990 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2024-09-12 18:02:12,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:12,991 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2024-09-12 18:02:12,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:12,992 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2024-09-12 18:02:12,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:12,993 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2024-09-12 18:02:12,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:12,994 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2024-09-12 18:02:12,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:12,995 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 473 [2024-09-12 18:02:12,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:12,996 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2024-09-12 18:02:12,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:12,996 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 499 [2024-09-12 18:02:12,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:12,997 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 512 [2024-09-12 18:02:12,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:12,998 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 525 [2024-09-12 18:02:12,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:13,000 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2024-09-12 18:02:13,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:13,001 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2024-09-12 18:02:13,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:13,003 INFO L134 CoverageAnalysis]: Checked inductivity of 7888 backedges. 3546 proven. 2718 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2024-09-12 18:02:13,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:02:13,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351172259] [2024-09-12 18:02:13,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351172259] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:02:13,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993154098] [2024-09-12 18:02:13,004 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 18:02:13,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:02:13,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:02:13,006 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:02:13,008 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-09-12 18:02:13,205 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 18:02:13,206 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:02:13,208 INFO L262 TraceCheckSpWp]: Trace formula consists of 1128 conjuncts, 62 conjuncts are in the unsatisfiable core [2024-09-12 18:02:13,212 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:02:14,965 INFO L134 CoverageAnalysis]: Checked inductivity of 7888 backedges. 3770 proven. 2494 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2024-09-12 18:02:14,965 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:02:16,297 INFO L134 CoverageAnalysis]: Checked inductivity of 7888 backedges. 3770 proven. 2494 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2024-09-12 18:02:16,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993154098] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:02:16,297 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:02:16,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 62, 62] total 94 [2024-09-12 18:02:16,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326570443] [2024-09-12 18:02:16,298 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:02:16,299 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2024-09-12 18:02:16,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:02:16,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2024-09-12 18:02:16,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1987, Invalid=6755, Unknown=0, NotChecked=0, Total=8742 [2024-09-12 18:02:16,302 INFO L87 Difference]: Start difference. First operand 1363 states and 1547 transitions. Second operand has 94 states, 94 states have (on average 7.1063829787234045) internal successors, (668), 94 states have internal predecessors, (668), 61 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-09-12 18:02:19,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:02:19,495 INFO L93 Difference]: Finished difference Result 1869 states and 2160 transitions. [2024-09-12 18:02:19,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2024-09-12 18:02:19,496 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 94 states have (on average 7.1063829787234045) internal successors, (668), 94 states have internal predecessors, (668), 61 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) Word has length 568 [2024-09-12 18:02:19,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:02:19,500 INFO L225 Difference]: With dead ends: 1869 [2024-09-12 18:02:19,501 INFO L226 Difference]: Without dead ends: 1513 [2024-09-12 18:02:19,503 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1316 GetRequests, 1107 SyntacticMatches, 58 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6629 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=6433, Invalid=16823, Unknown=0, NotChecked=0, Total=23256 [2024-09-12 18:02:19,503 INFO L434 NwaCegarLoop]: 163 mSDtfsCounter, 524 mSDsluCounter, 1421 mSDsCounter, 0 mSdLazyCounter, 2080 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 1584 SdHoareTripleChecker+Invalid, 2218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 2080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:02:19,503 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 1584 Invalid, 2218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 2080 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:02:19,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-09-12 18:02:20,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1363. [2024-09-12 18:02:20,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1363 states, 1257 states have (on average 1.1034208432776451) internal successors, (1387), 1261 states have internal predecessors, (1387), 80 states have call successors, (80), 22 states have call predecessors, (80), 21 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-09-12 18:02:20,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1363 states to 1363 states and 1546 transitions. [2024-09-12 18:02:20,026 INFO L78 Accepts]: Start accepts. Automaton has 1363 states and 1546 transitions. Word has length 568 [2024-09-12 18:02:20,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:02:20,026 INFO L474 AbstractCegarLoop]: Abstraction has 1363 states and 1546 transitions. [2024-09-12 18:02:20,027 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 94 states have (on average 7.1063829787234045) internal successors, (668), 94 states have internal predecessors, (668), 61 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-09-12 18:02:20,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:02:20,027 INFO L276 IsEmpty]: Start isEmpty. Operand 1363 states and 1546 transitions. [2024-09-12 18:02:20,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2024-09-12 18:02:20,029 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:02:20,029 INFO L216 NwaCegarLoop]: trace histogram [31, 30, 30, 30, 30, 30, 30, 30, 30, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:02:20,043 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2024-09-12 18:02:20,230 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2024-09-12 18:02:20,230 INFO L399 AbstractCegarLoop]: === Iteration 55 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:02:20,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:02:20,230 INFO L85 PathProgramCache]: Analyzing trace with hash 719422842, now seen corresponding path program 35 times [2024-09-12 18:02:20,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:02:20,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604903641] [2024-09-12 18:02:20,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:02:20,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:02:20,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:21,626 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:02:21,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:21,627 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-09-12 18:02:21,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:21,628 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-09-12 18:02:21,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:21,629 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-09-12 18:02:21,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:21,630 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-09-12 18:02:21,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:21,631 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2024-09-12 18:02:21,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:21,632 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2024-09-12 18:02:21,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:21,633 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2024-09-12 18:02:21,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:21,633 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2024-09-12 18:02:21,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:21,634 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2024-09-12 18:02:21,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:21,635 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2024-09-12 18:02:21,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:21,636 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2024-09-12 18:02:21,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:21,637 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2024-09-12 18:02:21,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:21,638 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2024-09-12 18:02:21,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:21,639 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2024-09-12 18:02:21,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:21,640 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2024-09-12 18:02:21,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:21,641 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2024-09-12 18:02:21,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:21,641 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2024-09-12 18:02:21,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:21,642 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2024-09-12 18:02:21,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:21,643 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2024-09-12 18:02:21,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:21,645 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2024-09-12 18:02:21,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:21,646 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 453 [2024-09-12 18:02:21,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:21,647 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2024-09-12 18:02:21,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:21,648 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2024-09-12 18:02:21,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:21,649 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 492 [2024-09-12 18:02:21,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:21,649 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 505 [2024-09-12 18:02:21,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:21,650 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2024-09-12 18:02:21,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:21,651 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 531 [2024-09-12 18:02:21,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:21,652 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 544 [2024-09-12 18:02:21,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:21,654 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 557 [2024-09-12 18:02:21,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:21,656 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 2552 proven. 3888 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2024-09-12 18:02:21,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:02:21,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604903641] [2024-09-12 18:02:21,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604903641] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:02:21,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493917155] [2024-09-12 18:02:21,656 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 18:02:21,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:02:21,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:02:21,658 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:02:21,660 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-09-12 18:02:21,895 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 31 check-sat command(s) [2024-09-12 18:02:21,895 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:02:21,899 INFO L262 TraceCheckSpWp]: Trace formula consists of 1142 conjuncts, 63 conjuncts are in the unsatisfiable core [2024-09-12 18:02:21,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:02:22,279 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 2728 proven. 3712 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2024-09-12 18:02:22,279 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:02:23,310 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 2728 proven. 3712 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2024-09-12 18:02:23,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493917155] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:02:23,311 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:02:23,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35, 35] total 39 [2024-09-12 18:02:23,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522839042] [2024-09-12 18:02:23,311 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:02:23,312 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-09-12 18:02:23,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:02:23,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-09-12 18:02:23,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=575, Invalid=907, Unknown=0, NotChecked=0, Total=1482 [2024-09-12 18:02:23,314 INFO L87 Difference]: Start difference. First operand 1363 states and 1546 transitions. Second operand has 39 states, 39 states have (on average 11.846153846153847) internal successors, (462), 37 states have internal predecessors, (462), 32 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-09-12 18:02:24,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:02:24,154 INFO L93 Difference]: Finished difference Result 1370 states and 1551 transitions. [2024-09-12 18:02:24,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-09-12 18:02:24,155 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 11.846153846153847) internal successors, (462), 37 states have internal predecessors, (462), 32 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Word has length 574 [2024-09-12 18:02:24,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:02:24,160 INFO L225 Difference]: With dead ends: 1370 [2024-09-12 18:02:24,160 INFO L226 Difference]: Without dead ends: 1367 [2024-09-12 18:02:24,161 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1272 GetRequests, 1173 SyntacticMatches, 61 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1431 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=581, Invalid=979, Unknown=0, NotChecked=0, Total=1560 [2024-09-12 18:02:24,161 INFO L434 NwaCegarLoop]: 150 mSDtfsCounter, 24 mSDsluCounter, 1242 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 1392 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:02:24,161 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 1392 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:02:24,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2024-09-12 18:02:24,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1367. [2024-09-12 18:02:24,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1367 states, 1260 states have (on average 1.0984126984126985) internal successors, (1384), 1264 states have internal predecessors, (1384), 80 states have call successors, (80), 23 states have call predecessors, (80), 22 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-09-12 18:02:24,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 1543 transitions. [2024-09-12 18:02:24,683 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 1543 transitions. Word has length 574 [2024-09-12 18:02:24,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:02:24,683 INFO L474 AbstractCegarLoop]: Abstraction has 1367 states and 1543 transitions. [2024-09-12 18:02:24,684 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 11.846153846153847) internal successors, (462), 37 states have internal predecessors, (462), 32 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-09-12 18:02:24,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:02:24,684 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 1543 transitions. [2024-09-12 18:02:24,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 601 [2024-09-12 18:02:24,686 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:02:24,687 INFO L216 NwaCegarLoop]: trace histogram [32, 32, 32, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 30, 30, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:02:24,700 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2024-09-12 18:02:24,887 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2024-09-12 18:02:24,887 INFO L399 AbstractCegarLoop]: === Iteration 56 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:02:24,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:02:24,888 INFO L85 PathProgramCache]: Analyzing trace with hash 2007759578, now seen corresponding path program 36 times [2024-09-12 18:02:24,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:02:24,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672620720] [2024-09-12 18:02:24,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:02:24,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:02:24,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:27,060 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:02:27,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:27,061 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-09-12 18:02:27,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:27,063 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-09-12 18:02:27,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:27,063 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-09-12 18:02:27,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:27,064 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-09-12 18:02:27,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:27,065 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2024-09-12 18:02:27,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:27,066 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2024-09-12 18:02:27,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:27,067 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2024-09-12 18:02:27,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:27,068 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2024-09-12 18:02:27,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:27,069 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2024-09-12 18:02:27,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:27,070 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2024-09-12 18:02:27,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:27,071 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2024-09-12 18:02:27,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:27,071 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2024-09-12 18:02:27,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:27,072 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2024-09-12 18:02:27,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:27,073 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2024-09-12 18:02:27,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:27,074 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2024-09-12 18:02:27,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:27,075 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2024-09-12 18:02:27,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:27,076 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2024-09-12 18:02:27,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:27,077 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2024-09-12 18:02:27,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:27,078 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2024-09-12 18:02:27,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:27,079 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2024-09-12 18:02:27,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:27,080 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 453 [2024-09-12 18:02:27,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:27,081 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2024-09-12 18:02:27,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:27,082 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2024-09-12 18:02:27,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:27,083 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 492 [2024-09-12 18:02:27,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:27,084 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 505 [2024-09-12 18:02:27,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:27,085 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2024-09-12 18:02:27,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:27,086 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 531 [2024-09-12 18:02:27,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:27,087 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 544 [2024-09-12 18:02:27,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:27,088 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 557 [2024-09-12 18:02:27,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:27,089 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 570 [2024-09-12 18:02:27,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:27,090 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2024-09-12 18:02:27,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:27,092 INFO L134 CoverageAnalysis]: Checked inductivity of 8839 backedges. 4069 proven. 2910 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-09-12 18:02:27,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:02:27,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672620720] [2024-09-12 18:02:27,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672620720] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:02:27,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [644530110] [2024-09-12 18:02:27,092 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 18:02:27,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:02:27,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:02:27,094 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:02:27,095 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2024-09-12 18:02:27,332 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 32 check-sat command(s) [2024-09-12 18:02:27,332 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:02:27,336 INFO L262 TraceCheckSpWp]: Trace formula consists of 1188 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-09-12 18:02:27,341 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:02:29,228 INFO L134 CoverageAnalysis]: Checked inductivity of 8839 backedges. 4309 proven. 2670 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-09-12 18:02:29,228 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:02:30,693 INFO L134 CoverageAnalysis]: Checked inductivity of 8839 backedges. 4309 proven. 2670 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-09-12 18:02:30,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [644530110] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:02:30,694 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:02:30,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 101 [2024-09-12 18:02:30,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88979] [2024-09-12 18:02:30,694 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:02:30,695 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 101 states [2024-09-12 18:02:30,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:02:30,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2024-09-12 18:02:30,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2314, Invalid=7786, Unknown=0, NotChecked=0, Total=10100 [2024-09-12 18:02:30,698 INFO L87 Difference]: Start difference. First operand 1367 states and 1543 transitions. Second operand has 101 states, 101 states have (on average 7.158415841584159) internal successors, (723), 101 states have internal predecessors, (723), 66 states have call successors, (67), 2 states have call predecessors, (67), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-09-12 18:02:36,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:02:36,335 INFO L93 Difference]: Finished difference Result 2167 states and 2481 transitions. [2024-09-12 18:02:36,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 158 states. [2024-09-12 18:02:36,335 INFO L78 Accepts]: Start accepts. Automaton has has 101 states, 101 states have (on average 7.158415841584159) internal successors, (723), 101 states have internal predecessors, (723), 66 states have call successors, (67), 2 states have call predecessors, (67), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) Word has length 600 [2024-09-12 18:02:36,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:02:36,340 INFO L225 Difference]: With dead ends: 2167 [2024-09-12 18:02:36,340 INFO L226 Difference]: Without dead ends: 1527 [2024-09-12 18:02:36,343 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1452 GetRequests, 1170 SyntacticMatches, 59 SemanticMatches, 223 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15557 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=13356, Invalid=37044, Unknown=0, NotChecked=0, Total=50400 [2024-09-12 18:02:36,343 INFO L434 NwaCegarLoop]: 168 mSDtfsCounter, 795 mSDsluCounter, 1659 mSDsCounter, 0 mSdLazyCounter, 2701 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 795 SdHoareTripleChecker+Valid, 1827 SdHoareTripleChecker+Invalid, 2916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 2701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:02:36,343 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [795 Valid, 1827 Invalid, 2916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 2701 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-09-12 18:02:36,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1527 states. [2024-09-12 18:02:36,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1527 to 1367. [2024-09-12 18:02:36,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1367 states, 1260 states have (on average 1.096825396825397) internal successors, (1382), 1264 states have internal predecessors, (1382), 80 states have call successors, (80), 23 states have call predecessors, (80), 22 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-09-12 18:02:36,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 1541 transitions. [2024-09-12 18:02:36,861 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 1541 transitions. Word has length 600 [2024-09-12 18:02:36,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:02:36,861 INFO L474 AbstractCegarLoop]: Abstraction has 1367 states and 1541 transitions. [2024-09-12 18:02:36,861 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 101 states, 101 states have (on average 7.158415841584159) internal successors, (723), 101 states have internal predecessors, (723), 66 states have call successors, (67), 2 states have call predecessors, (67), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-09-12 18:02:36,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:02:36,862 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 1541 transitions. [2024-09-12 18:02:36,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 580 [2024-09-12 18:02:36,864 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:02:36,864 INFO L216 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 95, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:02:36,878 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2024-09-12 18:02:37,064 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2024-09-12 18:02:37,065 INFO L399 AbstractCegarLoop]: === Iteration 57 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:02:37,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:02:37,065 INFO L85 PathProgramCache]: Analyzing trace with hash -39080998, now seen corresponding path program 6 times [2024-09-12 18:02:37,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:02:37,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365753926] [2024-09-12 18:02:37,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:02:37,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:02:37,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:42,097 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:02:42,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:42,100 INFO L134 CoverageAnalysis]: Checked inductivity of 26790 backedges. 0 proven. 26790 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:02:42,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:02:42,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365753926] [2024-09-12 18:02:42,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365753926] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:02:42,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481161602] [2024-09-12 18:02:42,100 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 18:02:42,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:02:42,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:02:42,101 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:02:42,102 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2024-09-12 18:02:42,438 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2024-09-12 18:02:42,438 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:02:42,442 INFO L262 TraceCheckSpWp]: Trace formula consists of 1366 conjuncts, 96 conjuncts are in the unsatisfiable core [2024-09-12 18:02:42,446 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:02:42,889 INFO L134 CoverageAnalysis]: Checked inductivity of 26790 backedges. 0 proven. 26790 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:02:42,889 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:02:51,834 INFO L134 CoverageAnalysis]: Checked inductivity of 26790 backedges. 0 proven. 26790 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:02:51,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481161602] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:02:51,835 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:02:51,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 192 [2024-09-12 18:02:51,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937339043] [2024-09-12 18:02:51,835 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:02:51,836 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 193 states [2024-09-12 18:02:51,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:02:51,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 193 interpolants. [2024-09-12 18:02:51,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18528, Invalid=18528, Unknown=0, NotChecked=0, Total=37056 [2024-09-12 18:02:51,841 INFO L87 Difference]: Start difference. First operand 1367 states and 1541 transitions. Second operand has 193 states, 192 states have (on average 6.052083333333333) internal successors, (1162), 193 states have internal predecessors, (1162), 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)