./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a053a782decb11d2f285c3ec51c61736c730fd1e4c1a5a335f84feb7be146afe --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-12 18:08:58,290 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 18:08:58,376 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 18:08:58,384 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 18:08:58,385 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 18:08:58,418 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 18:08:58,420 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 18:08:58,421 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 18:08:58,422 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 18:08:58,422 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 18:08:58,423 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 18:08:58,423 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 18:08:58,424 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 18:08:58,427 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 18:08:58,428 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 18:08:58,428 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 18:08:58,428 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 18:08:58,429 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 18:08:58,429 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 18:08:58,429 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 18:08:58,429 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 18:08:58,433 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 18:08:58,433 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 18:08:58,434 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 18:08:58,434 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 18:08:58,434 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 18:08:58,434 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 18:08:58,434 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 18:08:58,435 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 18:08:58,435 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 18:08:58,435 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 18:08:58,435 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 18:08:58,435 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:08:58,436 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 18:08:58,436 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 18:08:58,437 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 18:08:58,438 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 18:08:58,438 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 18:08:58,439 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 18:08:58,439 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 18:08:58,439 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 18:08:58,440 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 18:08:58,440 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a053a782decb11d2f285c3ec51c61736c730fd1e4c1a5a335f84feb7be146afe Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 18:08:58,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 18:08:58,811 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 18:08:58,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 18:08:58,817 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 18:08:58,817 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 18:08:58,819 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2024-09-12 18:09:00,493 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 18:09:00,693 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 18:09:00,694 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2024-09-12 18:09:00,704 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/80da25aea/f8a60195522f462cae41d957277eb3a5/FLAG6aeb31169 [2024-09-12 18:09:01,096 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/80da25aea/f8a60195522f462cae41d957277eb3a5 [2024-09-12 18:09:01,100 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 18:09:01,102 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 18:09:01,106 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 18:09:01,108 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 18:09:01,113 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 18:09:01,114 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:09:01" (1/1) ... [2024-09-12 18:09:01,115 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@722f5619 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:09:01, skipping insertion in model container [2024-09-12 18:09:01,117 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:09:01" (1/1) ... [2024-09-12 18:09:01,141 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 18:09:01,343 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-new/gauss_sum.i.p+lhb-reducer.c[1444,1457] [2024-09-12 18:09:01,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:09:01,364 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 18:09:01,386 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-new/gauss_sum.i.p+lhb-reducer.c[1444,1457] [2024-09-12 18:09:01,388 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:09:01,411 INFO L204 MainTranslator]: Completed translation [2024-09-12 18:09:01,411 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:09:01 WrapperNode [2024-09-12 18:09:01,412 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 18:09:01,413 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 18:09:01,414 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 18:09:01,414 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 18:09:01,421 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:09:01" (1/1) ... [2024-09-12 18:09:01,427 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:09:01" (1/1) ... [2024-09-12 18:09:01,433 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 18:09:01,434 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 18:09:01,434 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 18:09:01,435 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 18:09:01,435 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 18:09:01,445 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:09:01" (1/1) ... [2024-09-12 18:09:01,445 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:09:01" (1/1) ... [2024-09-12 18:09:01,446 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:09:01" (1/1) ... [2024-09-12 18:09:01,471 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-12 18:09:01,472 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:09:01" (1/1) ... [2024-09-12 18:09:01,472 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:09:01" (1/1) ... [2024-09-12 18:09:01,479 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:09:01" (1/1) ... [2024-09-12 18:09:01,481 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:09:01" (1/1) ... [2024-09-12 18:09:01,486 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:09:01" (1/1) ... [2024-09-12 18:09:01,487 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:09:01" (1/1) ... [2024-09-12 18:09:01,491 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 18:09:01,491 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 18:09:01,491 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 18:09:01,491 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 18:09:01,492 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:09:01" (1/1) ... [2024-09-12 18:09:01,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:09:01,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:09:01,528 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-12 18:09:01,536 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-12 18:09:01,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 18:09:01,585 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 18:09:01,586 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 18:09:01,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 18:09:01,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 18:09:01,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 18:09:01,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 18:09:01,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 18:09:01,648 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 18:09:01,650 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 18:09:01,983 INFO L? ?]: Removed 60 outVars from TransFormulas that were not future-live. [2024-09-12 18:09:01,985 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 18:09:02,013 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 18:09:02,015 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-12 18:09:02,015 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:09:02 BoogieIcfgContainer [2024-09-12 18:09:02,016 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 18:09:02,018 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 18:09:02,018 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 18:09:02,022 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 18:09:02,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 06:09:01" (1/3) ... [2024-09-12 18:09:02,023 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12ebb0b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:09:02, skipping insertion in model container [2024-09-12 18:09:02,023 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:09:01" (2/3) ... [2024-09-12 18:09:02,023 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12ebb0b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:09:02, skipping insertion in model container [2024-09-12 18:09:02,024 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:09:02" (3/3) ... [2024-09-12 18:09:02,025 INFO L112 eAbstractionObserver]: Analyzing ICFG gauss_sum.i.p+lhb-reducer.c [2024-09-12 18:09:02,041 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 18:09:02,041 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 31 error locations. [2024-09-12 18:09:02,110 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 18:09:02,116 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;@38fc2dcb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 18:09:02,116 INFO L337 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2024-09-12 18:09:02,120 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 44 states have (on average 1.9090909090909092) internal successors, (84), 75 states have internal predecessors, (84), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:09:02,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-09-12 18:09:02,128 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:09:02,129 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:09:02,129 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:09:02,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:02,134 INFO L85 PathProgramCache]: Analyzing trace with hash 49432068, now seen corresponding path program 1 times [2024-09-12 18:09:02,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:09:02,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72200421] [2024-09-12 18:09:02,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:09:02,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:09:02,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:02,394 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:09:02,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:02,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:02,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:09:02,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72200421] [2024-09-12 18:09:02,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72200421] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:09:02,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:09:02,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:09:02,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092607935] [2024-09-12 18:09:02,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:09:02,425 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:09:02,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:09:02,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:09:02,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:09:02,452 INFO L87 Difference]: Start difference. First operand has 80 states, 44 states have (on average 1.9090909090909092) internal successors, (84), 75 states have internal predecessors, (84), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:02,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:09:02,766 INFO L93 Difference]: Finished difference Result 86 states and 93 transitions. [2024-09-12 18:09:02,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:09:02,768 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2024-09-12 18:09:02,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:09:02,775 INFO L225 Difference]: With dead ends: 86 [2024-09-12 18:09:02,775 INFO L226 Difference]: Without dead ends: 73 [2024-09-12 18:09:02,778 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:09:02,781 INFO L434 NwaCegarLoop]: 5 mSDtfsCounter, 78 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:09:02,781 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 11 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:09:02,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-09-12 18:09:02,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2024-09-12 18:09:02,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 42 states have (on average 1.6666666666666667) internal successors, (70), 69 states have internal predecessors, (70), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:02,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 73 transitions. [2024-09-12 18:09:02,826 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 73 transitions. Word has length 9 [2024-09-12 18:09:02,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:09:02,827 INFO L474 AbstractCegarLoop]: Abstraction has 73 states and 73 transitions. [2024-09-12 18:09:02,827 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:02,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:02,828 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 73 transitions. [2024-09-12 18:09:02,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-09-12 18:09:02,828 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:09:02,828 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:09:02,828 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 18:09:02,829 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:09:02,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:02,829 INFO L85 PathProgramCache]: Analyzing trace with hash 259578694, now seen corresponding path program 1 times [2024-09-12 18:09:02,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:09:02,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926173234] [2024-09-12 18:09:02,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:09:02,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:09:02,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:02,892 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:09:02,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:02,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:02,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:09:02,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926173234] [2024-09-12 18:09:02,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926173234] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:09:02,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:09:02,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:09:02,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946656005] [2024-09-12 18:09:02,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:09:02,903 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:09:02,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:09:02,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:09:02,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:09:02,904 INFO L87 Difference]: Start difference. First operand 73 states and 73 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:03,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:09:03,096 INFO L93 Difference]: Finished difference Result 73 states and 73 transitions. [2024-09-12 18:09:03,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:09:03,096 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-09-12 18:09:03,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:09:03,097 INFO L225 Difference]: With dead ends: 73 [2024-09-12 18:09:03,098 INFO L226 Difference]: Without dead ends: 71 [2024-09-12 18:09:03,098 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:09:03,099 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 68 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:09:03,099 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 7 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:09:03,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-09-12 18:09:03,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2024-09-12 18:09:03,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 42 states have (on average 1.619047619047619) internal successors, (68), 67 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:03,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 71 transitions. [2024-09-12 18:09:03,121 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 71 transitions. Word has length 11 [2024-09-12 18:09:03,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:09:03,121 INFO L474 AbstractCegarLoop]: Abstraction has 71 states and 71 transitions. [2024-09-12 18:09:03,121 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:03,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:03,122 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 71 transitions. [2024-09-12 18:09:03,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-09-12 18:09:03,126 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:09:03,127 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:09:03,127 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 18:09:03,127 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:09:03,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:03,128 INFO L85 PathProgramCache]: Analyzing trace with hash -2127173422, now seen corresponding path program 1 times [2024-09-12 18:09:03,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:09:03,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765345206] [2024-09-12 18:09:03,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:09:03,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:09:03,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:03,290 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:09:03,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:03,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:03,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:09:03,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765345206] [2024-09-12 18:09:03,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765345206] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:09:03,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:09:03,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:09:03,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621663220] [2024-09-12 18:09:03,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:09:03,297 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:09:03,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:09:03,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:09:03,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:09:03,299 INFO L87 Difference]: Start difference. First operand 71 states and 71 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:03,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:09:03,529 INFO L93 Difference]: Finished difference Result 71 states and 71 transitions. [2024-09-12 18:09:03,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:09:03,530 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2024-09-12 18:09:03,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:09:03,532 INFO L225 Difference]: With dead ends: 71 [2024-09-12 18:09:03,532 INFO L226 Difference]: Without dead ends: 70 [2024-09-12 18:09:03,533 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:09:03,535 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 67 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:09:03,536 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 13 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:09:03,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-09-12 18:09:03,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2024-09-12 18:09:03,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 42 states have (on average 1.5952380952380953) internal successors, (67), 66 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:03,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 70 transitions. [2024-09-12 18:09:03,553 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 70 transitions. Word has length 14 [2024-09-12 18:09:03,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:09:03,554 INFO L474 AbstractCegarLoop]: Abstraction has 70 states and 70 transitions. [2024-09-12 18:09:03,554 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:03,554 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:03,555 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 70 transitions. [2024-09-12 18:09:03,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-09-12 18:09:03,555 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:09:03,555 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:09:03,556 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-12 18:09:03,559 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:09:03,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:03,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1517866581, now seen corresponding path program 1 times [2024-09-12 18:09:03,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:09:03,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978520236] [2024-09-12 18:09:03,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:09:03,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:09:03,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:03,681 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:09:03,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:03,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:03,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:09:03,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978520236] [2024-09-12 18:09:03,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978520236] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:09:03,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:09:03,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:09:03,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359846515] [2024-09-12 18:09:03,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:09:03,692 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:09:03,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:09:03,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:09:03,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:09:03,694 INFO L87 Difference]: Start difference. First operand 70 states and 70 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:03,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:09:03,835 INFO L93 Difference]: Finished difference Result 70 states and 70 transitions. [2024-09-12 18:09:03,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:09:03,836 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2024-09-12 18:09:03,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:09:03,837 INFO L225 Difference]: With dead ends: 70 [2024-09-12 18:09:03,837 INFO L226 Difference]: Without dead ends: 69 [2024-09-12 18:09:03,838 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:09:03,839 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 65 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:09:03,839 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 7 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:09:03,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-09-12 18:09:03,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2024-09-12 18:09:03,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 42 states have (on average 1.5714285714285714) internal successors, (66), 65 states have internal predecessors, (66), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:03,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 69 transitions. [2024-09-12 18:09:03,852 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 69 transitions. Word has length 15 [2024-09-12 18:09:03,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:09:03,852 INFO L474 AbstractCegarLoop]: Abstraction has 69 states and 69 transitions. [2024-09-12 18:09:03,852 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:03,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:03,853 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 69 transitions. [2024-09-12 18:09:03,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-09-12 18:09:03,853 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:09:03,854 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:09:03,854 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-12 18:09:03,854 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:09:03,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:03,855 INFO L85 PathProgramCache]: Analyzing trace with hash 190776308, now seen corresponding path program 1 times [2024-09-12 18:09:03,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:09:03,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358818851] [2024-09-12 18:09:03,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:09:03,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:09:03,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:03,895 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:09:03,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:03,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:03,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:09:03,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358818851] [2024-09-12 18:09:03,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358818851] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:09:03,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:09:03,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:09:03,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500176062] [2024-09-12 18:09:03,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:09:03,901 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:09:03,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:09:03,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:09:03,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:09:03,913 INFO L87 Difference]: Start difference. First operand 69 states and 69 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:04,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:09:04,064 INFO L93 Difference]: Finished difference Result 69 states and 69 transitions. [2024-09-12 18:09:04,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:09:04,065 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2024-09-12 18:09:04,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:09:04,067 INFO L225 Difference]: With dead ends: 69 [2024-09-12 18:09:04,068 INFO L226 Difference]: Without dead ends: 64 [2024-09-12 18:09:04,068 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:09:04,070 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 77 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:09:04,070 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 10 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:09:04,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-09-12 18:09:04,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2024-09-12 18:09:04,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 60 states have internal predecessors, (61), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:04,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 64 transitions. [2024-09-12 18:09:04,088 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 64 transitions. Word has length 16 [2024-09-12 18:09:04,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:09:04,088 INFO L474 AbstractCegarLoop]: Abstraction has 64 states and 64 transitions. [2024-09-12 18:09:04,089 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:04,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:04,089 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 64 transitions. [2024-09-12 18:09:04,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-09-12 18:09:04,090 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:09:04,090 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:09:04,090 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-09-12 18:09:04,090 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:09:04,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:04,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1619098317, now seen corresponding path program 1 times [2024-09-12 18:09:04,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:09:04,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196501072] [2024-09-12 18:09:04,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:09:04,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:09:04,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:04,164 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:09:04,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:04,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:04,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:09:04,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196501072] [2024-09-12 18:09:04,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196501072] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:09:04,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:09:04,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:09:04,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174272502] [2024-09-12 18:09:04,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:09:04,174 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:09:04,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:09:04,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:09:04,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:09:04,175 INFO L87 Difference]: Start difference. First operand 64 states and 64 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:04,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:09:04,339 INFO L93 Difference]: Finished difference Result 64 states and 64 transitions. [2024-09-12 18:09:04,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:09:04,340 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-09-12 18:09:04,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:09:04,341 INFO L225 Difference]: With dead ends: 64 [2024-09-12 18:09:04,342 INFO L226 Difference]: Without dead ends: 63 [2024-09-12 18:09:04,343 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:09:04,343 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 59 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:09:04,344 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 10 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:09:04,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-09-12 18:09:04,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2024-09-12 18:09:04,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 59 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:04,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 63 transitions. [2024-09-12 18:09:04,367 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 63 transitions. Word has length 17 [2024-09-12 18:09:04,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:09:04,368 INFO L474 AbstractCegarLoop]: Abstraction has 63 states and 63 transitions. [2024-09-12 18:09:04,368 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:04,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:04,368 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 63 transitions. [2024-09-12 18:09:04,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-09-12 18:09:04,369 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:09:04,369 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:09:04,369 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-09-12 18:09:04,370 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:09:04,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:04,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1175323663, now seen corresponding path program 1 times [2024-09-12 18:09:04,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:09:04,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311894011] [2024-09-12 18:09:04,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:09:04,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:09:04,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:04,509 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:09:04,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:04,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:04,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:09:04,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311894011] [2024-09-12 18:09:04,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311894011] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:09:04,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:09:04,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-09-12 18:09:04,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091328621] [2024-09-12 18:09:04,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:09:04,519 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:09:04,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:09:04,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:09:04,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:09:04,520 INFO L87 Difference]: Start difference. First operand 63 states and 63 transitions. Second operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:04,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:09:04,771 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2024-09-12 18:09:04,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:09:04,772 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2024-09-12 18:09:04,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:09:04,773 INFO L225 Difference]: With dead ends: 63 [2024-09-12 18:09:04,773 INFO L226 Difference]: Without dead ends: 62 [2024-09-12 18:09:04,773 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:09:04,774 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 60 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:09:04,774 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 16 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:09:04,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-09-12 18:09:04,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2024-09-12 18:09:04,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 42 states have (on average 1.4047619047619047) internal successors, (59), 58 states have internal predecessors, (59), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:04,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 62 transitions. [2024-09-12 18:09:04,783 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 62 transitions. Word has length 19 [2024-09-12 18:09:04,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:09:04,783 INFO L474 AbstractCegarLoop]: Abstraction has 62 states and 62 transitions. [2024-09-12 18:09:04,783 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:04,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:04,784 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 62 transitions. [2024-09-12 18:09:04,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-09-12 18:09:04,784 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:09:04,785 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] [2024-09-12 18:09:04,785 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-12 18:09:04,785 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:09:04,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:04,785 INFO L85 PathProgramCache]: Analyzing trace with hash 2075295257, now seen corresponding path program 1 times [2024-09-12 18:09:04,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:09:04,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113442031] [2024-09-12 18:09:04,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:09:04,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:09:04,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:04,873 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:09:04,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:04,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:04,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:09:04,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113442031] [2024-09-12 18:09:04,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113442031] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:09:04,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:09:04,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-09-12 18:09:04,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125737360] [2024-09-12 18:09:04,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:09:04,884 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:09:04,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:09:04,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:09:04,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:09:04,884 INFO L87 Difference]: Start difference. First operand 62 states and 62 transitions. Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:05,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:09:05,133 INFO L93 Difference]: Finished difference Result 62 states and 62 transitions. [2024-09-12 18:09:05,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:09:05,134 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2024-09-12 18:09:05,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:09:05,135 INFO L225 Difference]: With dead ends: 62 [2024-09-12 18:09:05,135 INFO L226 Difference]: Without dead ends: 61 [2024-09-12 18:09:05,135 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=95, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:09:05,136 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 59 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:09:05,136 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 16 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:09:05,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-09-12 18:09:05,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2024-09-12 18:09:05,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 42 states have (on average 1.380952380952381) internal successors, (58), 57 states have internal predecessors, (58), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:05,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 61 transitions. [2024-09-12 18:09:05,145 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 61 transitions. Word has length 20 [2024-09-12 18:09:05,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:09:05,145 INFO L474 AbstractCegarLoop]: Abstraction has 61 states and 61 transitions. [2024-09-12 18:09:05,145 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:05,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:05,146 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2024-09-12 18:09:05,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-09-12 18:09:05,146 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:09:05,147 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] [2024-09-12 18:09:05,147 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-09-12 18:09:05,147 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:09:05,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:05,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1493919003, now seen corresponding path program 1 times [2024-09-12 18:09:05,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:09:05,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118846922] [2024-09-12 18:09:05,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:09:05,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:09:05,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:05,211 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:09:05,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:05,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:05,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:09:05,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118846922] [2024-09-12 18:09:05,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118846922] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:09:05,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:09:05,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:09:05,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659382213] [2024-09-12 18:09:05,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:09:05,219 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:09:05,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:09:05,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:09:05,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:09:05,220 INFO L87 Difference]: Start difference. First operand 61 states and 61 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:05,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:09:05,328 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2024-09-12 18:09:05,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:09:05,329 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2024-09-12 18:09:05,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:09:05,330 INFO L225 Difference]: With dead ends: 61 [2024-09-12 18:09:05,330 INFO L226 Difference]: Without dead ends: 56 [2024-09-12 18:09:05,330 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:09:05,331 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 102 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:09:05,331 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 10 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:09:05,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-09-12 18:09:05,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2024-09-12 18:09:05,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 42 states have (on average 1.2619047619047619) internal successors, (53), 52 states have internal predecessors, (53), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:05,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 56 transitions. [2024-09-12 18:09:05,342 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 56 transitions. Word has length 22 [2024-09-12 18:09:05,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:09:05,343 INFO L474 AbstractCegarLoop]: Abstraction has 56 states and 56 transitions. [2024-09-12 18:09:05,343 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:05,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:05,343 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 56 transitions. [2024-09-12 18:09:05,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-09-12 18:09:05,344 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:09:05,344 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, 1] [2024-09-12 18:09:05,345 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-09-12 18:09:05,345 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:09:05,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:05,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1137087549, now seen corresponding path program 1 times [2024-09-12 18:09:05,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:09:05,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622110856] [2024-09-12 18:09:05,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:09:05,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:09:05,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:05,470 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:09:05,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:05,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:05,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:09:05,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622110856] [2024-09-12 18:09:05,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622110856] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:09:05,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:09:05,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-09-12 18:09:05,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725921841] [2024-09-12 18:09:05,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:09:05,475 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:09:05,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:09:05,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:09:05,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:09:05,476 INFO L87 Difference]: Start difference. First operand 56 states and 56 transitions. Second operand has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:05,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:09:05,754 INFO L93 Difference]: Finished difference Result 56 states and 56 transitions. [2024-09-12 18:09:05,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:09:05,755 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2024-09-12 18:09:05,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:09:05,755 INFO L225 Difference]: With dead ends: 56 [2024-09-12 18:09:05,755 INFO L226 Difference]: Without dead ends: 55 [2024-09-12 18:09:05,756 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:09:05,756 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 53 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:09:05,757 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 22 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:09:05,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-09-12 18:09:05,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2024-09-12 18:09:05,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 42 states have (on average 1.2380952380952381) internal successors, (52), 51 states have internal predecessors, (52), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:05,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 55 transitions. [2024-09-12 18:09:05,777 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 55 transitions. Word has length 24 [2024-09-12 18:09:05,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:09:05,778 INFO L474 AbstractCegarLoop]: Abstraction has 55 states and 55 transitions. [2024-09-12 18:09:05,778 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:05,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:05,778 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2024-09-12 18:09:05,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-09-12 18:09:05,779 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:09:05,779 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, 1, 1] [2024-09-12 18:09:05,779 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-09-12 18:09:05,779 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:09:05,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:05,782 INFO L85 PathProgramCache]: Analyzing trace with hash 889975734, now seen corresponding path program 1 times [2024-09-12 18:09:05,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:09:05,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382637196] [2024-09-12 18:09:05,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:09:05,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:09:05,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:05,908 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:09:05,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:05,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:05,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:09:05,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382637196] [2024-09-12 18:09:05,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382637196] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:09:05,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:09:05,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-09-12 18:09:05,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308830254] [2024-09-12 18:09:05,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:09:05,912 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:09:05,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:09:05,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:09:05,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:09:05,913 INFO L87 Difference]: Start difference. First operand 55 states and 55 transitions. Second operand has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:06,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:09:06,203 INFO L93 Difference]: Finished difference Result 55 states and 55 transitions. [2024-09-12 18:09:06,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 18:09:06,207 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-09-12 18:09:06,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:09:06,208 INFO L225 Difference]: With dead ends: 55 [2024-09-12 18:09:06,208 INFO L226 Difference]: Without dead ends: 54 [2024-09-12 18:09:06,209 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2024-09-12 18:09:06,209 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 68 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:09:06,209 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 19 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:09:06,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-09-12 18:09:06,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-09-12 18:09:06,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 42 states have (on average 1.2142857142857142) internal successors, (51), 50 states have internal predecessors, (51), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:06,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2024-09-12 18:09:06,225 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 25 [2024-09-12 18:09:06,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:09:06,226 INFO L474 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2024-09-12 18:09:06,226 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:06,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:06,226 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2024-09-12 18:09:06,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-09-12 18:09:06,228 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:09:06,228 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, 1, 1, 1, 1, 1, 1] [2024-09-12 18:09:06,228 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-09-12 18:09:06,228 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:09:06,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:06,230 INFO L85 PathProgramCache]: Analyzing trace with hash 570891802, now seen corresponding path program 1 times [2024-09-12 18:09:06,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:09:06,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048188761] [2024-09-12 18:09:06,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:09:06,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:09:06,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:06,424 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:09:06,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:06,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:06,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:09:06,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048188761] [2024-09-12 18:09:06,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048188761] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:09:06,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:09:06,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-09-12 18:09:06,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889844683] [2024-09-12 18:09:06,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:09:06,431 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:09:06,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:09:06,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:09:06,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:09:06,432 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:06,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:09:06,739 INFO L93 Difference]: Finished difference Result 54 states and 54 transitions. [2024-09-12 18:09:06,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:09:06,740 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2024-09-12 18:09:06,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:09:06,741 INFO L225 Difference]: With dead ends: 54 [2024-09-12 18:09:06,741 INFO L226 Difference]: Without dead ends: 53 [2024-09-12 18:09:06,741 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2024-09-12 18:09:06,742 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 51 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:09:06,742 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 28 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:09:06,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-09-12 18:09:06,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2024-09-12 18:09:06,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 42 states have (on average 1.1904761904761905) internal successors, (50), 49 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:06,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 53 transitions. [2024-09-12 18:09:06,756 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 53 transitions. Word has length 29 [2024-09-12 18:09:06,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:09:06,756 INFO L474 AbstractCegarLoop]: Abstraction has 53 states and 53 transitions. [2024-09-12 18:09:06,757 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:06,757 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:06,757 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 53 transitions. [2024-09-12 18:09:06,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-09-12 18:09:06,759 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:09:06,759 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, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:09:06,759 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-09-12 18:09:06,759 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:09:06,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:06,760 INFO L85 PathProgramCache]: Analyzing trace with hash 517776772, now seen corresponding path program 1 times [2024-09-12 18:09:06,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:09:06,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505887860] [2024-09-12 18:09:06,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:09:06,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:09:06,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:06,951 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:09:06,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:06,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:06,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:09:06,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505887860] [2024-09-12 18:09:06,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505887860] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:09:06,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:09:06,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-09-12 18:09:06,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519236237] [2024-09-12 18:09:06,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:09:06,957 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 18:09:06,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:09:06,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 18:09:06,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:09:06,958 INFO L87 Difference]: Start difference. First operand 53 states and 53 transitions. Second operand has 13 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:07,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:09:07,355 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2024-09-12 18:09:07,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:09:07,356 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2024-09-12 18:09:07,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:09:07,357 INFO L225 Difference]: With dead ends: 53 [2024-09-12 18:09:07,357 INFO L226 Difference]: Without dead ends: 52 [2024-09-12 18:09:07,357 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=188, Invalid=412, Unknown=0, NotChecked=0, Total=600 [2024-09-12 18:09:07,358 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 77 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:09:07,358 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 28 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:09:07,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-09-12 18:09:07,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-09-12 18:09:07,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 42 states have (on average 1.1666666666666667) internal successors, (49), 48 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:07,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2024-09-12 18:09:07,372 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 30 [2024-09-12 18:09:07,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:09:07,372 INFO L474 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2024-09-12 18:09:07,373 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:07,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:07,373 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2024-09-12 18:09:07,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-09-12 18:09:07,373 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:09:07,374 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:09:07,374 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-09-12 18:09:07,374 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:09:07,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:07,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1836279048, now seen corresponding path program 1 times [2024-09-12 18:09:07,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:09:07,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19830047] [2024-09-12 18:09:07,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:09:07,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:09:07,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:07,538 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:09:07,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:07,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:07,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:09:07,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19830047] [2024-09-12 18:09:07,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19830047] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:09:07,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:09:07,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-09-12 18:09:07,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122565572] [2024-09-12 18:09:07,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:09:07,546 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 18:09:07,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:09:07,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 18:09:07,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:09:07,548 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:07,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:09:07,864 INFO L93 Difference]: Finished difference Result 64 states and 68 transitions. [2024-09-12 18:09:07,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 18:09:07,864 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2024-09-12 18:09:07,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:09:07,865 INFO L225 Difference]: With dead ends: 64 [2024-09-12 18:09:07,865 INFO L226 Difference]: Without dead ends: 63 [2024-09-12 18:09:07,866 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=434, Unknown=0, NotChecked=0, Total=506 [2024-09-12 18:09:07,866 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 72 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:09:07,866 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 28 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:09:07,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-09-12 18:09:07,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 54. [2024-09-12 18:09:07,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 44 states have (on average 1.1818181818181819) internal successors, (52), 50 states have internal predecessors, (52), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:07,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2024-09-12 18:09:07,884 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 34 [2024-09-12 18:09:07,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:09:07,884 INFO L474 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2024-09-12 18:09:07,884 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:07,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:07,885 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2024-09-12 18:09:07,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-09-12 18:09:07,886 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:09:07,886 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:09:07,886 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-09-12 18:09:07,887 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:09:07,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:07,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1836278728, now seen corresponding path program 1 times [2024-09-12 18:09:07,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:09:07,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598927798] [2024-09-12 18:09:07,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:09:07,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:09:07,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:08,080 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:09:08,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:08,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:08,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:09:08,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598927798] [2024-09-12 18:09:08,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598927798] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:09:08,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:09:08,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-09-12 18:09:08,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070097294] [2024-09-12 18:09:08,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:09:08,086 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 18:09:08,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:09:08,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 18:09:08,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:09:08,087 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:08,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:09:08,468 INFO L93 Difference]: Finished difference Result 57 states and 59 transitions. [2024-09-12 18:09:08,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 18:09:08,469 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2024-09-12 18:09:08,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:09:08,469 INFO L225 Difference]: With dead ends: 57 [2024-09-12 18:09:08,469 INFO L226 Difference]: Without dead ends: 56 [2024-09-12 18:09:08,470 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2024-09-12 18:09:08,470 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 54 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:09:08,470 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 34 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:09:08,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-09-12 18:09:08,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 55. [2024-09-12 18:09:08,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 45 states have (on average 1.1777777777777778) internal successors, (53), 51 states have internal predecessors, (53), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:08,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 56 transitions. [2024-09-12 18:09:08,487 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 56 transitions. Word has length 34 [2024-09-12 18:09:08,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:09:08,488 INFO L474 AbstractCegarLoop]: Abstraction has 55 states and 56 transitions. [2024-09-12 18:09:08,489 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:08,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:08,489 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 56 transitions. [2024-09-12 18:09:08,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-09-12 18:09:08,490 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:09:08,490 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:09:08,490 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-09-12 18:09:08,490 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:09:08,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:08,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1090075756, now seen corresponding path program 1 times [2024-09-12 18:09:08,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:09:08,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401934144] [2024-09-12 18:09:08,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:09:08,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:09:08,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:08,666 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:09:08,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:08,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:08,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:09:08,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401934144] [2024-09-12 18:09:08,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401934144] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:09:08,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:09:08,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-09-12 18:09:08,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670008576] [2024-09-12 18:09:08,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:09:08,671 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 18:09:08,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:09:08,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 18:09:08,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:09:08,672 INFO L87 Difference]: Start difference. First operand 55 states and 56 transitions. Second operand has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:09,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:09:09,105 INFO L93 Difference]: Finished difference Result 64 states and 66 transitions. [2024-09-12 18:09:09,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 18:09:09,105 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2024-09-12 18:09:09,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:09:09,106 INFO L225 Difference]: With dead ends: 64 [2024-09-12 18:09:09,106 INFO L226 Difference]: Without dead ends: 63 [2024-09-12 18:09:09,107 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=219, Invalid=483, Unknown=0, NotChecked=0, Total=702 [2024-09-12 18:09:09,107 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 117 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:09:09,108 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 31 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:09:09,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-09-12 18:09:09,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 56. [2024-09-12 18:09:09,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 46 states have (on average 1.173913043478261) internal successors, (54), 52 states have internal predecessors, (54), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:09,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 57 transitions. [2024-09-12 18:09:09,119 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 57 transitions. Word has length 35 [2024-09-12 18:09:09,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:09:09,120 INFO L474 AbstractCegarLoop]: Abstraction has 56 states and 57 transitions. [2024-09-12 18:09:09,120 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:09,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:09,120 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 57 transitions. [2024-09-12 18:09:09,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-09-12 18:09:09,120 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:09:09,121 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:09:09,121 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-09-12 18:09:09,121 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:09:09,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:09,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1090065826, now seen corresponding path program 1 times [2024-09-12 18:09:09,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:09:09,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455643328] [2024-09-12 18:09:09,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:09:09,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:09:09,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:09,350 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:09:09,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:09,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:09,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:09:09,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455643328] [2024-09-12 18:09:09,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455643328] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:09:09,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:09:09,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-09-12 18:09:09,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517093018] [2024-09-12 18:09:09,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:09:09,356 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 18:09:09,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:09:09,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 18:09:09,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:09:09,357 INFO L87 Difference]: Start difference. First operand 56 states and 57 transitions. Second operand has 15 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:09,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:09:09,839 INFO L93 Difference]: Finished difference Result 58 states and 59 transitions. [2024-09-12 18:09:09,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 18:09:09,840 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2024-09-12 18:09:09,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:09:09,840 INFO L225 Difference]: With dead ends: 58 [2024-09-12 18:09:09,841 INFO L226 Difference]: Without dead ends: 57 [2024-09-12 18:09:09,841 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=242, Invalid=570, Unknown=0, NotChecked=0, Total=812 [2024-09-12 18:09:09,842 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 120 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:09:09,842 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 31 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:09:09,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-09-12 18:09:09,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2024-09-12 18:09:09,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 47 states have (on average 1.1702127659574468) internal successors, (55), 53 states have internal predecessors, (55), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:09,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 58 transitions. [2024-09-12 18:09:09,854 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 58 transitions. Word has length 35 [2024-09-12 18:09:09,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:09:09,855 INFO L474 AbstractCegarLoop]: Abstraction has 57 states and 58 transitions. [2024-09-12 18:09:09,855 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:09,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:09,855 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 58 transitions. [2024-09-12 18:09:09,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-09-12 18:09:09,856 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:09:09,856 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:09:09,856 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-09-12 18:09:09,856 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:09:09,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:09,857 INFO L85 PathProgramCache]: Analyzing trace with hash -567389814, now seen corresponding path program 1 times [2024-09-12 18:09:09,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:09:09,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286174147] [2024-09-12 18:09:09,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:09:09,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:09:09,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:09,898 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:09:09,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:09,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:09,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:09:09,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286174147] [2024-09-12 18:09:09,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286174147] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:09:09,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:09:09,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:09:09,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670942649] [2024-09-12 18:09:09,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:09:09,902 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:09:09,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:09:09,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:09:09,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:09:09,903 INFO L87 Difference]: Start difference. First operand 57 states and 58 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:09,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:09:09,979 INFO L93 Difference]: Finished difference Result 57 states and 58 transitions. [2024-09-12 18:09:09,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:09:09,979 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2024-09-12 18:09:09,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:09:09,980 INFO L225 Difference]: With dead ends: 57 [2024-09-12 18:09:09,980 INFO L226 Difference]: Without dead ends: 56 [2024-09-12 18:09:09,980 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:09:09,981 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 59 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:09:09,981 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 7 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:09:09,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-09-12 18:09:09,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2024-09-12 18:09:09,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 47 states have (on average 1.148936170212766) internal successors, (54), 52 states have internal predecessors, (54), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:09,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 57 transitions. [2024-09-12 18:09:09,994 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 57 transitions. Word has length 36 [2024-09-12 18:09:09,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:09:09,995 INFO L474 AbstractCegarLoop]: Abstraction has 56 states and 57 transitions. [2024-09-12 18:09:09,995 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:09,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:09,995 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 57 transitions. [2024-09-12 18:09:09,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-09-12 18:09:09,996 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:09:09,996 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:09:09,996 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-09-12 18:09:09,996 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:09:09,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:09,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1881447408, now seen corresponding path program 1 times [2024-09-12 18:09:09,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:09:09,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891909643] [2024-09-12 18:09:09,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:09:09,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:09:10,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:09:10,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1264280397] [2024-09-12 18:09:10,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:09:10,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:09:10,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:09:10,009 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:09:10,013 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-12 18:09:10,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:10,071 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:09:10,076 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:09:10,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:10,230 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:09:10,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:09:10,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891909643] [2024-09-12 18:09:10,231 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:09:10,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264280397] [2024-09-12 18:09:10,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264280397] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:09:10,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:09:10,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:09:10,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988349738] [2024-09-12 18:09:10,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:09:10,232 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:09:10,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:09:10,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:09:10,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:09:10,233 INFO L87 Difference]: Start difference. First operand 56 states and 57 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 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 18:09:10,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:09:10,281 INFO L93 Difference]: Finished difference Result 56 states and 57 transitions. [2024-09-12 18:09:10,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:09:10,282 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 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 18:09:10,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:09:10,283 INFO L225 Difference]: With dead ends: 56 [2024-09-12 18:09:10,283 INFO L226 Difference]: Without dead ends: 55 [2024-09-12 18:09:10,283 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:09:10,283 INFO L434 NwaCegarLoop]: 37 mSDtfsCounter, 18 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:09:10,284 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 42 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:09:10,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-09-12 18:09:10,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2024-09-12 18:09:10,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 47 states have (on average 1.127659574468085) internal successors, (53), 51 states have internal predecessors, (53), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:10,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 56 transitions. [2024-09-12 18:09:10,306 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 56 transitions. Word has length 39 [2024-09-12 18:09:10,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:09:10,307 INFO L474 AbstractCegarLoop]: Abstraction has 55 states and 56 transitions. [2024-09-12 18:09:10,307 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 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 18:09:10,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:10,307 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 56 transitions. [2024-09-12 18:09:10,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-09-12 18:09:10,308 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:09:10,308 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:09:10,325 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-12 18:09:10,509 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:09:10,510 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:09:10,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:10,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1300510630, now seen corresponding path program 1 times [2024-09-12 18:09:10,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:09:10,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35117621] [2024-09-12 18:09:10,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:09:10,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:09:10,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:10,699 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:09:10,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:10,703 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:10,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:09:10,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35117621] [2024-09-12 18:09:10,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35117621] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:09:10,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [68956040] [2024-09-12 18:09:10,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:09:10,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:09:10,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:09:10,705 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:09:10,713 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-12 18:09:10,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:10,754 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 18:09:10,756 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:09:11,078 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:11,078 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:09:11,350 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:11,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [68956040] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:09:11,350 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:09:11,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 13] total 37 [2024-09-12 18:09:11,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872189229] [2024-09-12 18:09:11,351 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:09:11,351 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-09-12 18:09:11,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:09:11,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-09-12 18:09:11,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=345, Invalid=1061, Unknown=0, NotChecked=0, Total=1406 [2024-09-12 18:09:11,353 INFO L87 Difference]: Start difference. First operand 55 states and 56 transitions. Second operand has 38 states, 37 states have (on average 2.675675675675676) internal successors, (99), 37 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:11,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:09:11,883 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions. [2024-09-12 18:09:11,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-12 18:09:11,884 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 2.675675675675676) internal successors, (99), 37 states have internal predecessors, (99), 1 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 39 [2024-09-12 18:09:11,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:09:11,884 INFO L225 Difference]: With dead ends: 59 [2024-09-12 18:09:11,885 INFO L226 Difference]: Without dead ends: 57 [2024-09-12 18:09:11,886 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=764, Invalid=1992, Unknown=0, NotChecked=0, Total=2756 [2024-09-12 18:09:11,886 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 79 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:09:11,887 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 46 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:09:11,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-09-12 18:09:11,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 53. [2024-09-12 18:09:11,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 47 states have (on average 1.0851063829787233) internal successors, (51), 49 states have internal predecessors, (51), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:11,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2024-09-12 18:09:11,905 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 39 [2024-09-12 18:09:11,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:09:11,905 INFO L474 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2024-09-12 18:09:11,905 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 2.675675675675676) internal successors, (99), 37 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:11,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:11,906 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2024-09-12 18:09:11,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-09-12 18:09:11,906 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:09:11,907 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:09:11,924 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-09-12 18:09:12,110 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:09:12,111 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:09:12,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:12,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1661123982, now seen corresponding path program 1 times [2024-09-12 18:09:12,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:09:12,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171691003] [2024-09-12 18:09:12,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:09:12,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:09:12,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:12,327 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:09:12,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:12,331 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:12,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:09:12,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171691003] [2024-09-12 18:09:12,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171691003] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:09:12,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581187901] [2024-09-12 18:09:12,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:09:12,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:09:12,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:09:12,334 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:09:12,347 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-12 18:09:12,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:12,391 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 18:09:12,393 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:09:12,741 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:12,741 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:09:13,069 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:13,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [581187901] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:09:13,069 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:09:13,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 13] total 39 [2024-09-12 18:09:13,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165694971] [2024-09-12 18:09:13,070 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:09:13,070 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-09-12 18:09:13,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:09:13,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-09-12 18:09:13,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=331, Invalid=1229, Unknown=0, NotChecked=0, Total=1560 [2024-09-12 18:09:13,072 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand has 40 states, 39 states have (on average 2.717948717948718) internal successors, (106), 39 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:14,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:09:14,164 INFO L93 Difference]: Finished difference Result 97 states and 110 transitions. [2024-09-12 18:09:14,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-09-12 18:09:14,165 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 2.717948717948718) internal successors, (106), 39 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2024-09-12 18:09:14,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:09:14,167 INFO L225 Difference]: With dead ends: 97 [2024-09-12 18:09:14,167 INFO L226 Difference]: Without dead ends: 95 [2024-09-12 18:09:14,169 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 816 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1025, Invalid=3007, Unknown=0, NotChecked=0, Total=4032 [2024-09-12 18:09:14,170 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 276 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:09:14,170 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 61 Invalid, 676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:09:14,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-09-12 18:09:14,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 81. [2024-09-12 18:09:14,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 75 states have (on average 1.1333333333333333) internal successors, (85), 77 states have internal predecessors, (85), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:14,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 88 transitions. [2024-09-12 18:09:14,193 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 88 transitions. Word has length 40 [2024-09-12 18:09:14,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:09:14,194 INFO L474 AbstractCegarLoop]: Abstraction has 81 states and 88 transitions. [2024-09-12 18:09:14,194 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 2.717948717948718) internal successors, (106), 39 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:14,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:14,194 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 88 transitions. [2024-09-12 18:09:14,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-09-12 18:09:14,195 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:09:14,195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:09:14,212 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-12 18:09:14,399 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-09-12 18:09:14,400 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr30ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:09:14,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:14,402 INFO L85 PathProgramCache]: Analyzing trace with hash -110268462, now seen corresponding path program 1 times [2024-09-12 18:09:14,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:09:14,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461625605] [2024-09-12 18:09:14,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:09:14,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:09:14,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:09:14,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [240338198] [2024-09-12 18:09:14,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:09:14,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:09:14,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:09:14,423 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:09:14,425 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-12 18:09:14,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:14,472 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-09-12 18:09:14,474 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:09:14,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:14,780 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:09:14,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:09:14,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461625605] [2024-09-12 18:09:14,780 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:09:14,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240338198] [2024-09-12 18:09:14,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [240338198] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:09:14,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:09:14,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-09-12 18:09:14,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173518813] [2024-09-12 18:09:14,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:09:14,782 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 18:09:14,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:09:14,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 18:09:14,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:09:14,785 INFO L87 Difference]: Start difference. First operand 81 states and 88 transitions. Second operand has 17 states, 17 states have (on average 2.235294117647059) internal successors, (38), 17 states have internal predecessors, (38), 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 18:09:15,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:09:15,035 INFO L93 Difference]: Finished difference Result 90 states and 96 transitions. [2024-09-12 18:09:15,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 18:09:15,037 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.235294117647059) internal successors, (38), 17 states have internal predecessors, (38), 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 41 [2024-09-12 18:09:15,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:09:15,038 INFO L225 Difference]: With dead ends: 90 [2024-09-12 18:09:15,038 INFO L226 Difference]: Without dead ends: 81 [2024-09-12 18:09:15,038 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:09:15,039 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 16 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:09:15,039 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 58 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:09:15,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-09-12 18:09:15,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2024-09-12 18:09:15,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 75 states have (on average 1.12) internal successors, (84), 77 states have internal predecessors, (84), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:15,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 87 transitions. [2024-09-12 18:09:15,062 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 87 transitions. Word has length 41 [2024-09-12 18:09:15,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:09:15,063 INFO L474 AbstractCegarLoop]: Abstraction has 81 states and 87 transitions. [2024-09-12 18:09:15,063 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.235294117647059) internal successors, (38), 17 states have internal predecessors, (38), 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 18:09:15,063 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:15,063 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 87 transitions. [2024-09-12 18:09:15,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-09-12 18:09:15,064 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:09:15,064 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, 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 18:09:15,086 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-09-12 18:09:15,267 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:09:15,268 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr30ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:09:15,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:15,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1155133580, now seen corresponding path program 1 times [2024-09-12 18:09:15,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:09:15,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411226527] [2024-09-12 18:09:15,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:09:15,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:09:15,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:09:15,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [789858912] [2024-09-12 18:09:15,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:09:15,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:09:15,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:09:15,286 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:09:15,287 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-12 18:09:15,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:15,335 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-09-12 18:09:15,338 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:09:15,713 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:15,713 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:09:16,258 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:16,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:09:16,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411226527] [2024-09-12 18:09:16,258 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:09:16,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789858912] [2024-09-12 18:09:16,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789858912] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:09:16,258 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:09:16,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 18] total 35 [2024-09-12 18:09:16,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871137956] [2024-09-12 18:09:16,259 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:09:16,259 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-09-12 18:09:16,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:09:16,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-09-12 18:09:16,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1004, Unknown=0, NotChecked=0, Total=1190 [2024-09-12 18:09:16,260 INFO L87 Difference]: Start difference. First operand 81 states and 87 transitions. Second operand has 35 states, 35 states have (on average 2.342857142857143) internal successors, (82), 35 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 18:09:18,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:09:18,108 INFO L93 Difference]: Finished difference Result 101 states and 109 transitions. [2024-09-12 18:09:18,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-09-12 18:09:18,108 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.342857142857143) internal successors, (82), 35 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 46 [2024-09-12 18:09:18,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:09:18,109 INFO L225 Difference]: With dead ends: 101 [2024-09-12 18:09:18,109 INFO L226 Difference]: Without dead ends: 86 [2024-09-12 18:09:18,111 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 895 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=672, Invalid=3360, Unknown=0, NotChecked=0, Total=4032 [2024-09-12 18:09:18,113 INFO L434 NwaCegarLoop]: 7 mSDtfsCounter, 129 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 802 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:09:18,113 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 93 Invalid, 851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 802 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:09:18,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-09-12 18:09:18,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-09-12 18:09:18,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 80 states have (on average 1.0625) internal successors, (85), 82 states have internal predecessors, (85), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:18,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 88 transitions. [2024-09-12 18:09:18,154 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 88 transitions. Word has length 46 [2024-09-12 18:09:18,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:09:18,154 INFO L474 AbstractCegarLoop]: Abstraction has 86 states and 88 transitions. [2024-09-12 18:09:18,154 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 2.342857142857143) internal successors, (82), 35 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 18:09:18,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:18,155 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 88 transitions. [2024-09-12 18:09:18,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-09-12 18:09:18,155 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:09:18,155 INFO L216 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 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, 1, 1, 1, 1, 1] [2024-09-12 18:09:18,179 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-12 18:09:18,360 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-09-12 18:09:18,361 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:09:18,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:18,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1720937118, now seen corresponding path program 1 times [2024-09-12 18:09:18,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:09:18,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804334467] [2024-09-12 18:09:18,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:09:18,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:09:18,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:18,861 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:09:18,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:18,865 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:18,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:09:18,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804334467] [2024-09-12 18:09:18,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804334467] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:09:18,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1645122525] [2024-09-12 18:09:18,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:09:18,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:09:18,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:09:18,867 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:09:18,869 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-12 18:09:18,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:18,912 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-09-12 18:09:18,914 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:09:19,770 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:19,770 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:09:20,608 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:20,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1645122525] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:09:20,609 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:09:20,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 24, 24] total 72 [2024-09-12 18:09:20,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234290429] [2024-09-12 18:09:20,609 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:09:20,610 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2024-09-12 18:09:20,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:09:20,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2024-09-12 18:09:20,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=967, Invalid=4289, Unknown=0, NotChecked=0, Total=5256 [2024-09-12 18:09:20,612 INFO L87 Difference]: Start difference. First operand 86 states and 88 transitions. Second operand has 73 states, 72 states have (on average 2.513888888888889) internal successors, (181), 72 states have internal predecessors, (181), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:23,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:09:23,755 INFO L93 Difference]: Finished difference Result 139 states and 161 transitions. [2024-09-12 18:09:23,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-09-12 18:09:23,755 INFO L78 Accepts]: Start accepts. Automaton has has 73 states, 72 states have (on average 2.513888888888889) internal successors, (181), 72 states have internal predecessors, (181), 1 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 65 [2024-09-12 18:09:23,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:09:23,757 INFO L225 Difference]: With dead ends: 139 [2024-09-12 18:09:23,757 INFO L226 Difference]: Without dead ends: 138 [2024-09-12 18:09:23,760 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2600 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=3383, Invalid=10423, Unknown=0, NotChecked=0, Total=13806 [2024-09-12 18:09:23,762 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 614 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 1023 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 1265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 1023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:09:23,762 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [614 Valid, 121 Invalid, 1265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 1023 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:09:23,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-09-12 18:09:23,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2024-09-12 18:09:23,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 132 states have (on average 1.106060606060606) internal successors, (146), 134 states have internal predecessors, (146), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:23,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 149 transitions. [2024-09-12 18:09:23,834 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 149 transitions. Word has length 65 [2024-09-12 18:09:23,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:09:23,835 INFO L474 AbstractCegarLoop]: Abstraction has 138 states and 149 transitions. [2024-09-12 18:09:23,835 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 72 states have (on average 2.513888888888889) internal successors, (181), 72 states have internal predecessors, (181), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:23,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:23,836 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 149 transitions. [2024-09-12 18:09:23,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-09-12 18:09:23,836 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:09:23,836 INFO L216 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:09:23,854 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-12 18:09:24,037 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-09-12 18:09:24,037 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:09:24,038 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:24,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1502156238, now seen corresponding path program 2 times [2024-09-12 18:09:24,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:09:24,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094511982] [2024-09-12 18:09:24,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:09:24,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:09:24,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:24,558 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:09:24,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:24,562 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:24,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:09:24,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094511982] [2024-09-12 18:09:24,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094511982] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:09:24,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607470588] [2024-09-12 18:09:24,563 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:09:24,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:09:24,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:09:24,564 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:09:24,566 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-12 18:09:24,612 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:09:24,612 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:09:24,614 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-09-12 18:09:24,618 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:09:25,496 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:25,496 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:09:26,384 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:26,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607470588] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:09:26,385 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:09:26,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 25, 25] total 75 [2024-09-12 18:09:26,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966752937] [2024-09-12 18:09:26,385 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:09:26,386 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2024-09-12 18:09:26,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:09:26,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2024-09-12 18:09:26,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1048, Invalid=4652, Unknown=0, NotChecked=0, Total=5700 [2024-09-12 18:09:26,388 INFO L87 Difference]: Start difference. First operand 138 states and 149 transitions. Second operand has 76 states, 75 states have (on average 2.6133333333333333) internal successors, (196), 75 states have internal predecessors, (196), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:29,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:09:29,507 INFO L93 Difference]: Finished difference Result 146 states and 159 transitions. [2024-09-12 18:09:29,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-09-12 18:09:29,508 INFO L78 Accepts]: Start accepts. Automaton has has 76 states, 75 states have (on average 2.6133333333333333) internal successors, (196), 75 states have internal predecessors, (196), 1 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 70 [2024-09-12 18:09:29,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:09:29,509 INFO L225 Difference]: With dead ends: 146 [2024-09-12 18:09:29,509 INFO L226 Difference]: Without dead ends: 143 [2024-09-12 18:09:29,513 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2891 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=3690, Invalid=11316, Unknown=0, NotChecked=0, Total=15006 [2024-09-12 18:09:29,513 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 652 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 1128 mSolverCounterSat, 246 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 652 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 1374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 246 IncrementalHoareTripleChecker+Valid, 1128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:09:29,514 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [652 Valid, 127 Invalid, 1374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [246 Valid, 1128 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:09:29,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-09-12 18:09:29,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 141. [2024-09-12 18:09:29,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 135 states have (on average 1.1037037037037036) internal successors, (149), 137 states have internal predecessors, (149), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:29,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 152 transitions. [2024-09-12 18:09:29,582 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 152 transitions. Word has length 70 [2024-09-12 18:09:29,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:09:29,582 INFO L474 AbstractCegarLoop]: Abstraction has 141 states and 152 transitions. [2024-09-12 18:09:29,582 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 76 states, 75 states have (on average 2.6133333333333333) internal successors, (196), 75 states have internal predecessors, (196), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:29,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:29,583 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 152 transitions. [2024-09-12 18:09:29,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-09-12 18:09:29,583 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:09:29,584 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:09:29,607 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-12 18:09:29,784 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:09:29,785 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr30ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:09:29,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:29,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1973033774, now seen corresponding path program 2 times [2024-09-12 18:09:29,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:09:29,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844728550] [2024-09-12 18:09:29,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:09:29,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:09:29,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:09:29,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [593912588] [2024-09-12 18:09:29,801 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:09:29,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:09:29,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:09:29,809 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:09:29,822 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-12 18:09:29,882 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:09:29,882 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:09:29,884 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-09-12 18:09:29,887 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:09:30,644 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:30,644 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:09:31,786 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:31,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:09:31,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844728550] [2024-09-12 18:09:31,787 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:09:31,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [593912588] [2024-09-12 18:09:31,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [593912588] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:09:31,787 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:09:31,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 32] total 62 [2024-09-12 18:09:31,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199823140] [2024-09-12 18:09:31,787 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:09:31,788 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2024-09-12 18:09:31,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:09:31,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2024-09-12 18:09:31,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=507, Invalid=3275, Unknown=0, NotChecked=0, Total=3782 [2024-09-12 18:09:31,789 INFO L87 Difference]: Start difference. First operand 141 states and 152 transitions. Second operand has 62 states, 62 states have (on average 2.4516129032258065) internal successors, (152), 62 states have internal predecessors, (152), 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 18:09:39,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:09:39,496 INFO L93 Difference]: Finished difference Result 171 states and 188 transitions. [2024-09-12 18:09:39,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2024-09-12 18:09:39,497 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 62 states have (on average 2.4516129032258065) internal successors, (152), 62 states have internal predecessors, (152), 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 81 [2024-09-12 18:09:39,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:09:39,498 INFO L225 Difference]: With dead ends: 171 [2024-09-12 18:09:39,498 INFO L226 Difference]: Without dead ends: 156 [2024-09-12 18:09:39,502 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 100 SyntacticMatches, 1 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4204 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=2610, Invalid=15750, Unknown=0, NotChecked=0, Total=18360 [2024-09-12 18:09:39,503 INFO L434 NwaCegarLoop]: 7 mSDtfsCounter, 202 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 2471 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 2520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 2471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:09:39,503 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 163 Invalid, 2520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 2471 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-09-12 18:09:39,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-09-12 18:09:39,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2024-09-12 18:09:39,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 150 states have (on average 1.06) internal successors, (159), 152 states have internal predecessors, (159), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:09:39,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 162 transitions. [2024-09-12 18:09:39,621 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 162 transitions. Word has length 81 [2024-09-12 18:09:39,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:09:39,622 INFO L474 AbstractCegarLoop]: Abstraction has 156 states and 162 transitions. [2024-09-12 18:09:39,622 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 2.4516129032258065) internal successors, (152), 62 states have internal predecessors, (152), 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 18:09:39,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:39,622 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 162 transitions. [2024-09-12 18:09:39,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-09-12 18:09:39,623 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:09:39,624 INFO L216 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 18, 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, 1, 1, 1, 1, 1] [2024-09-12 18:09:39,645 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-09-12 18:09:39,827 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:09:39,828 INFO L399 AbstractCegarLoop]: === Iteration 27 === Targeting mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:09:39,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:09:39,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1252432670, now seen corresponding path program 2 times [2024-09-12 18:09:39,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:09:39,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38335046] [2024-09-12 18:09:39,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:09:39,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:09:39,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:41,341 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:09:41,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:09:41,345 INFO L134 CoverageAnalysis]: Checked inductivity of 819 backedges. 0 proven. 819 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:41,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:09:41,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38335046] [2024-09-12 18:09:41,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38335046] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:09:41,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421207999] [2024-09-12 18:09:41,346 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:09:41,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:09:41,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:09:41,349 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:09:41,353 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-12 18:09:41,412 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:09:41,412 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:09:41,414 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-09-12 18:09:41,417 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:09:44,349 INFO L134 CoverageAnalysis]: Checked inductivity of 819 backedges. 0 proven. 819 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:44,350 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:09:47,731 INFO L134 CoverageAnalysis]: Checked inductivity of 819 backedges. 0 proven. 819 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:09:47,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [421207999] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:09:47,731 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:09:47,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 48, 48] total 144 [2024-09-12 18:09:47,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577639045] [2024-09-12 18:09:47,732 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:09:47,743 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 145 states [2024-09-12 18:09:47,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:09:47,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 145 interpolants. [2024-09-12 18:09:47,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5401, Invalid=15479, Unknown=0, NotChecked=0, Total=20880 [2024-09-12 18:09:47,748 INFO L87 Difference]: Start difference. First operand 156 states and 162 transitions. Second operand has 145 states, 144 states have (on average 2.5069444444444446) internal successors, (361), 144 states have internal predecessors, (361), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:10:10,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:10:10,240 INFO L93 Difference]: Finished difference Result 371 states and 435 transitions. [2024-09-12 18:10:10,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 139 states. [2024-09-12 18:10:10,242 INFO L78 Accepts]: Start accepts. Automaton has has 145 states, 144 states have (on average 2.5069444444444446) internal successors, (361), 144 states have internal predecessors, (361), 1 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 125 [2024-09-12 18:10:10,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:10:10,244 INFO L225 Difference]: With dead ends: 371 [2024-09-12 18:10:10,244 INFO L226 Difference]: Without dead ends: 370 [2024-09-12 18:10:10,253 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 279 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19378 ImplicationChecksByTransitivity, 27.5s TimeCoverageRelationStatistics Valid=22091, Invalid=56589, Unknown=0, NotChecked=0, Total=78680 [2024-09-12 18:10:10,254 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 2817 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 1896 mSolverCounterSat, 461 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2817 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 2357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 461 IncrementalHoareTripleChecker+Valid, 1896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:10:10,254 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2817 Valid, 253 Invalid, 2357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [461 Valid, 1896 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-09-12 18:10:10,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2024-09-12 18:10:10,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 258. [2024-09-12 18:10:10,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 252 states have (on average 1.1031746031746033) internal successors, (278), 254 states have internal predecessors, (278), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:10:10,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 281 transitions. [2024-09-12 18:10:10,394 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 281 transitions. Word has length 125 [2024-09-12 18:10:10,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:10:10,394 INFO L474 AbstractCegarLoop]: Abstraction has 258 states and 281 transitions. [2024-09-12 18:10:10,395 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 145 states, 144 states have (on average 2.5069444444444446) internal successors, (361), 144 states have internal predecessors, (361), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:10:10,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:10:10,395 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 281 transitions. [2024-09-12 18:10:10,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-09-12 18:10:10,396 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:10:10,396 INFO L216 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 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, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:10:10,414 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-12 18:10:10,596 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-09-12 18:10:10,597 INFO L399 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:10:10,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:10:10,597 INFO L85 PathProgramCache]: Analyzing trace with hash -424544690, now seen corresponding path program 3 times [2024-09-12 18:10:10,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:10:10,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009312607] [2024-09-12 18:10:10,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:10:10,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:10:10,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:10:12,209 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:10:12,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:10:12,212 INFO L134 CoverageAnalysis]: Checked inductivity of 874 backedges. 0 proven. 874 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:10:12,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:10:12,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009312607] [2024-09-12 18:10:12,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009312607] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:10:12,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151398909] [2024-09-12 18:10:12,213 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:10:12,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:10:12,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:10:12,214 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:10:12,215 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-12 18:10:12,284 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 20 check-sat command(s) [2024-09-12 18:10:12,285 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:10:12,287 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-09-12 18:10:12,289 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:10:15,129 INFO L134 CoverageAnalysis]: Checked inductivity of 874 backedges. 0 proven. 874 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:10:15,129 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:10:18,515 INFO L134 CoverageAnalysis]: Checked inductivity of 874 backedges. 0 proven. 874 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:10:18,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [151398909] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:10:18,515 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:10:18,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 49, 49] total 147 [2024-09-12 18:10:18,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176164331] [2024-09-12 18:10:18,515 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:10:18,516 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 148 states [2024-09-12 18:10:18,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:10:18,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 148 interpolants. [2024-09-12 18:10:18,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3670, Invalid=18086, Unknown=0, NotChecked=0, Total=21756 [2024-09-12 18:10:18,520 INFO L87 Difference]: Start difference. First operand 258 states and 281 transitions. Second operand has 148 states, 147 states have (on average 2.557823129251701) internal successors, (376), 147 states have internal predecessors, (376), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:10:32,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:10:32,966 INFO L93 Difference]: Finished difference Result 268 states and 293 transitions. [2024-09-12 18:10:32,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2024-09-12 18:10:32,967 INFO L78 Accepts]: Start accepts. Automaton has has 148 states, 147 states have (on average 2.557823129251701) internal successors, (376), 147 states have internal predecessors, (376), 1 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 130 [2024-09-12 18:10:32,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:10:32,968 INFO L225 Difference]: With dead ends: 268 [2024-09-12 18:10:32,968 INFO L226 Difference]: Without dead ends: 263 [2024-09-12 18:10:32,972 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 241 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11117 ImplicationChecksByTransitivity, 19.6s TimeCoverageRelationStatistics Valid=14124, Invalid=44682, Unknown=0, NotChecked=0, Total=58806 [2024-09-12 18:10:32,972 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 2084 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 2090 mSolverCounterSat, 928 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2084 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 3018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 928 IncrementalHoareTripleChecker+Valid, 2090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:10:32,972 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2084 Valid, 271 Invalid, 3018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [928 Valid, 2090 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-09-12 18:10:32,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2024-09-12 18:10:33,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 261. [2024-09-12 18:10:33,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 255 states have (on average 1.0941176470588236) internal successors, (279), 257 states have internal predecessors, (279), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:10:33,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 282 transitions. [2024-09-12 18:10:33,120 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 282 transitions. Word has length 130 [2024-09-12 18:10:33,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:10:33,121 INFO L474 AbstractCegarLoop]: Abstraction has 261 states and 282 transitions. [2024-09-12 18:10:33,121 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 148 states, 147 states have (on average 2.557823129251701) internal successors, (376), 147 states have internal predecessors, (376), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:10:33,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:10:33,122 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 282 transitions. [2024-09-12 18:10:33,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-09-12 18:10:33,122 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:10:33,122 INFO L216 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 22, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:10:33,139 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-09-12 18:10:33,323 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-09-12 18:10:33,323 INFO L399 AbstractCegarLoop]: === Iteration 29 === Targeting mainErr30ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:10:33,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:10:33,324 INFO L85 PathProgramCache]: Analyzing trace with hash -166426222, now seen corresponding path program 3 times [2024-09-12 18:10:33,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:10:33,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631929038] [2024-09-12 18:10:33,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:10:33,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:10:33,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:10:33,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1027863359] [2024-09-12 18:10:33,359 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:10:33,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:10:33,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:10:33,361 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:10:33,362 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-12 18:10:33,461 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 23 check-sat command(s) [2024-09-12 18:10:33,462 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:10:33,465 INFO L262 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 116 conjuncts are in the unsatisfiable core [2024-09-12 18:10:33,468 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:10:35,056 INFO L134 CoverageAnalysis]: Checked inductivity of 1177 backedges. 0 proven. 1177 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:10:35,056 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:10:35,628 INFO L134 CoverageAnalysis]: Checked inductivity of 1177 backedges. 0 proven. 106 refuted. 0 times theorem prover too weak. 1071 trivial. 0 not checked. [2024-09-12 18:10:35,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:10:35,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631929038] [2024-09-12 18:10:35,628 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:10:35,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027863359] [2024-09-12 18:10:35,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1027863359] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:10:35,628 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:10:35,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 9] total 66 [2024-09-12 18:10:35,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517255533] [2024-09-12 18:10:35,628 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:10:35,629 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2024-09-12 18:10:35,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:10:35,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2024-09-12 18:10:35,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=4093, Unknown=0, NotChecked=0, Total=4290 [2024-09-12 18:10:35,631 INFO L87 Difference]: Start difference. First operand 261 states and 282 transitions. Second operand has 66 states, 66 states have (on average 2.893939393939394) internal successors, (191), 66 states have internal predecessors, (191), 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 18:10:41,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:10:41,150 INFO L93 Difference]: Finished difference Result 267 states and 288 transitions. [2024-09-12 18:10:41,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2024-09-12 18:10:41,150 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 2.893939393939394) internal successors, (191), 66 states have internal predecessors, (191), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 151 [2024-09-12 18:10:41,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:10:41,152 INFO L225 Difference]: With dead ends: 267 [2024-09-12 18:10:41,152 INFO L226 Difference]: Without dead ends: 252 [2024-09-12 18:10:41,154 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 236 SyntacticMatches, 1 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3517 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=802, Invalid=21250, Unknown=0, NotChecked=0, Total=22052 [2024-09-12 18:10:41,155 INFO L434 NwaCegarLoop]: 6 mSDtfsCounter, 67 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 8654 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 8670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 8654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:10:41,155 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 237 Invalid, 8670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 8654 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-09-12 18:10:41,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2024-09-12 18:10:41,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2024-09-12 18:10:41,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 247 states have (on average 1.008097165991903) internal successors, (249), 248 states have internal predecessors, (249), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:10:41,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 252 transitions. [2024-09-12 18:10:41,330 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 252 transitions. Word has length 151 [2024-09-12 18:10:41,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:10:41,330 INFO L474 AbstractCegarLoop]: Abstraction has 252 states and 252 transitions. [2024-09-12 18:10:41,331 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 2.893939393939394) internal successors, (191), 66 states have internal predecessors, (191), 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 18:10:41,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:10:41,331 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 252 transitions. [2024-09-12 18:10:41,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2024-09-12 18:10:41,332 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:10:41,332 INFO L216 NwaCegarLoop]: trace histogram [43, 43, 42, 42, 42, 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, 1, 1, 1, 1, 1] [2024-09-12 18:10:41,350 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 18:10:41,532 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-09-12 18:10:41,533 INFO L399 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:10:41,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:10:41,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1176878110, now seen corresponding path program 3 times [2024-09-12 18:10:41,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:10:41,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990726545] [2024-09-12 18:10:41,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:10:41,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:10:41,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:10:46,894 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:10:46,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:10:46,899 INFO L134 CoverageAnalysis]: Checked inductivity of 4431 backedges. 0 proven. 4431 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:10:46,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:10:46,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990726545] [2024-09-12 18:10:46,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990726545] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:10:46,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545555734] [2024-09-12 18:10:46,900 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:10:46,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:10:46,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:10:46,901 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:10:46,902 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-12 18:10:47,142 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 43 check-sat command(s) [2024-09-12 18:10:47,142 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:10:47,146 INFO L262 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 98 conjuncts are in the unsatisfiable core [2024-09-12 18:10:47,151 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:10:54,841 INFO L134 CoverageAnalysis]: Checked inductivity of 4431 backedges. 0 proven. 4431 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:10:54,841 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:11:08,556 INFO L134 CoverageAnalysis]: Checked inductivity of 4431 backedges. 0 proven. 4431 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:11:08,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1545555734] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:11:08,557 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:11:08,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [98, 96, 96] total 288 [2024-09-12 18:11:08,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899033829] [2024-09-12 18:11:08,557 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:11:08,558 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 289 states [2024-09-12 18:11:08,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:11:08,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 289 interpolants. [2024-09-12 18:11:08,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10882, Invalid=72350, Unknown=0, NotChecked=0, Total=83232 [2024-09-12 18:11:08,566 INFO L87 Difference]: Start difference. First operand 252 states and 252 transitions. Second operand has 289 states, 288 states have (on average 2.5034722222222223) internal successors, (721), 288 states have internal predecessors, (721), 1 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)