./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops-crafted-1/mono-crafted_7.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/loops-crafted-1/mono-crafted_7.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 ae51dc9203c351522c25ee3116b2cda704928bb61769972b6b90792bfdf57f19 --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 18:17:03,908 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 18:17:03,987 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 18:17:03,994 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 18:17:03,995 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 18:17:04,027 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 18:17:04,028 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 18:17:04,028 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 18:17:04,029 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 18:17:04,030 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 18:17:04,031 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 18:17:04,031 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 18:17:04,032 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 18:17:04,032 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 18:17:04,032 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 18:17:04,033 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 18:17:04,035 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 18:17:04,036 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 18:17:04,036 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 18:17:04,036 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 18:17:04,036 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 18:17:04,037 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 18:17:04,037 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 18:17:04,038 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 18:17:04,038 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 18:17:04,038 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 18:17:04,038 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 18:17:04,039 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 18:17:04,039 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 18:17:04,039 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 18:17:04,040 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 18:17:04,040 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 18:17:04,041 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:17:04,041 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 18:17:04,041 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 18:17:04,042 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 18:17:04,042 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 18:17:04,042 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 18:17:04,043 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 18:17:04,043 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 18:17:04,043 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 18:17:04,044 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 18:17:04,044 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae51dc9203c351522c25ee3116b2cda704928bb61769972b6b90792bfdf57f19 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 18:17:04,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 18:17:04,381 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 18:17:04,384 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 18:17:04,385 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 18:17:04,386 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 18:17:04,387 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loops-crafted-1/mono-crafted_7.c [2024-09-12 18:17:06,472 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 18:17:06,681 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 18:17:06,682 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loops-crafted-1/mono-crafted_7.c [2024-09-12 18:17:06,688 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/2f248982e/a96d407108134d76a1c1889dc09455e0/FLAG429d321b1 [2024-09-12 18:17:07,070 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/2f248982e/a96d407108134d76a1c1889dc09455e0 [2024-09-12 18:17:07,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 18:17:07,074 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 18:17:07,075 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 18:17:07,075 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 18:17:07,080 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 18:17:07,081 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:17:07" (1/1) ... [2024-09-12 18:17:07,082 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a4bb3a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:17:07, skipping insertion in model container [2024-09-12 18:17:07,082 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:17:07" (1/1) ... [2024-09-12 18:17:07,098 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 18:17:07,264 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loops-crafted-1/mono-crafted_7.c[318,331] [2024-09-12 18:17:07,284 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:17:07,292 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 18:17:07,302 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loops-crafted-1/mono-crafted_7.c[318,331] [2024-09-12 18:17:07,305 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:17:07,325 INFO L204 MainTranslator]: Completed translation [2024-09-12 18:17:07,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:17:07 WrapperNode [2024-09-12 18:17:07,326 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 18:17:07,327 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 18:17:07,327 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 18:17:07,327 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 18:17:07,333 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:17:07" (1/1) ... [2024-09-12 18:17:07,339 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:17:07" (1/1) ... [2024-09-12 18:17:07,344 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 18:17:07,345 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 18:17:07,345 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 18:17:07,346 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 18:17:07,346 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 18:17:07,356 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:17:07" (1/1) ... [2024-09-12 18:17:07,357 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:17:07" (1/1) ... [2024-09-12 18:17:07,358 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:17:07" (1/1) ... [2024-09-12 18:17:07,367 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 18:17:07,368 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:17:07" (1/1) ... [2024-09-12 18:17:07,368 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:17:07" (1/1) ... [2024-09-12 18:17:07,370 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:17:07" (1/1) ... [2024-09-12 18:17:07,373 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:17:07" (1/1) ... [2024-09-12 18:17:07,374 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:17:07" (1/1) ... [2024-09-12 18:17:07,375 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:17:07" (1/1) ... [2024-09-12 18:17:07,378 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 18:17:07,379 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 18:17:07,379 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 18:17:07,379 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 18:17:07,380 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:17:07" (1/1) ... [2024-09-12 18:17:07,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:17:07,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:17:07,414 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 18:17:07,423 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 18:17:07,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 18:17:07,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 18:17:07,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 18:17:07,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 18:17:07,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 18:17:07,469 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 18:17:07,469 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 18:17:07,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 18:17:07,469 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 18:17:07,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 18:17:07,527 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 18:17:07,529 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 18:17:07,653 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-09-12 18:17:07,654 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 18:17:07,675 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 18:17:07,676 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-12 18:17:07,676 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:17:07 BoogieIcfgContainer [2024-09-12 18:17:07,676 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 18:17:07,684 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 18:17:07,684 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 18:17:07,691 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 18:17:07,692 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 06:17:07" (1/3) ... [2024-09-12 18:17:07,696 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@574ea7fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:17:07, skipping insertion in model container [2024-09-12 18:17:07,696 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:17:07" (2/3) ... [2024-09-12 18:17:07,697 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@574ea7fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:17:07, skipping insertion in model container [2024-09-12 18:17:07,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:17:07" (3/3) ... [2024-09-12 18:17:07,698 INFO L112 eAbstractionObserver]: Analyzing ICFG mono-crafted_7.c [2024-09-12 18:17:07,735 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 18:17:07,736 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2024-09-12 18:17:07,853 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 18:17:07,874 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;@59063762, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 18:17:07,875 INFO L337 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-09-12 18:17:07,883 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 21 states have (on average 1.8095238095238095) internal successors, (38), 32 states have internal predecessors, (38), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:17:07,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-09-12 18:17:07,898 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:17:07,899 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:17:07,904 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:17:07,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:07,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1899532730, now seen corresponding path program 1 times [2024-09-12 18:17:07,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:17:07,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844141766] [2024-09-12 18:17:07,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:17:07,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:17:08,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:08,135 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:17:08,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:08,151 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 18:17:08,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:17:08,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844141766] [2024-09-12 18:17:08,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844141766] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:17:08,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:17:08,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:17:08,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793580679] [2024-09-12 18:17:08,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:17:08,159 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-12 18:17:08,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:17:08,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-12 18:17:08,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 18:17:08,187 INFO L87 Difference]: Start difference. First operand has 39 states, 21 states have (on average 1.8095238095238095) internal successors, (38), 32 states have internal predecessors, (38), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:08,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:17:08,222 INFO L93 Difference]: Finished difference Result 59 states and 67 transitions. [2024-09-12 18:17:08,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-12 18:17:08,229 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 8 [2024-09-12 18:17:08,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:17:08,243 INFO L225 Difference]: With dead ends: 59 [2024-09-12 18:17:08,243 INFO L226 Difference]: Without dead ends: 33 [2024-09-12 18:17:08,246 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 18:17:08,254 INFO L434 NwaCegarLoop]: 39 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:17:08,255 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:17:08,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2024-09-12 18:17:08,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2024-09-12 18:17:08,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 28 states have internal predecessors, (31), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:08,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2024-09-12 18:17:08,318 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 8 [2024-09-12 18:17:08,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:17:08,318 INFO L474 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2024-09-12 18:17:08,318 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:08,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:08,319 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2024-09-12 18:17:08,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-09-12 18:17:08,320 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:17:08,320 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:17:08,321 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 18:17:08,321 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:17:08,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:08,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1899553872, now seen corresponding path program 1 times [2024-09-12 18:17:08,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:17:08,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901831847] [2024-09-12 18:17:08,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:17:08,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:17:08,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:08,412 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:17:08,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:08,423 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 18:17:08,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:17:08,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901831847] [2024-09-12 18:17:08,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901831847] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:17:08,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:17:08,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:17:08,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535666944] [2024-09-12 18:17:08,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:17:08,427 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:17:08,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:17:08,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:17:08,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:17:08,429 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:08,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:17:08,473 INFO L93 Difference]: Finished difference Result 63 states and 69 transitions. [2024-09-12 18:17:08,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:17:08,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 8 [2024-09-12 18:17:08,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:17:08,477 INFO L225 Difference]: With dead ends: 63 [2024-09-12 18:17:08,477 INFO L226 Difference]: Without dead ends: 35 [2024-09-12 18:17:08,478 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:17:08,478 INFO L434 NwaCegarLoop]: 32 mSDtfsCounter, 1 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:17:08,479 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 55 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:17:08,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-09-12 18:17:08,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-09-12 18:17:08,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 20 states have (on average 1.65) internal successors, (33), 30 states have internal predecessors, (33), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:08,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2024-09-12 18:17:08,491 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 8 [2024-09-12 18:17:08,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:17:08,492 INFO L474 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2024-09-12 18:17:08,492 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:08,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:08,493 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2024-09-12 18:17:08,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-09-12 18:17:08,493 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:17:08,493 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:17:08,494 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 18:17:08,494 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:17:08,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:08,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1899552782, now seen corresponding path program 1 times [2024-09-12 18:17:08,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:17:08,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430981026] [2024-09-12 18:17:08,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:17:08,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:17:08,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:08,590 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:17:08,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:08,601 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 18:17:08,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:17:08,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430981026] [2024-09-12 18:17:08,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430981026] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:17:08,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:17:08,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:17:08,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170235281] [2024-09-12 18:17:08,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:17:08,607 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:17:08,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:17:08,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:17:08,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:17:08,609 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:08,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:17:08,663 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2024-09-12 18:17:08,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:17:08,663 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 8 [2024-09-12 18:17:08,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:17:08,664 INFO L225 Difference]: With dead ends: 39 [2024-09-12 18:17:08,677 INFO L226 Difference]: Without dead ends: 37 [2024-09-12 18:17:08,678 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:17:08,679 INFO L434 NwaCegarLoop]: 30 mSDtfsCounter, 1 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:17:08,679 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 80 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:17:08,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-09-12 18:17:08,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-09-12 18:17:08,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 32 states have internal predecessors, (35), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:08,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2024-09-12 18:17:08,695 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 8 [2024-09-12 18:17:08,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:17:08,695 INFO L474 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2024-09-12 18:17:08,696 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:08,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:08,698 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2024-09-12 18:17:08,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-09-12 18:17:08,698 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:17:08,699 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:17:08,699 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-12 18:17:08,699 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:17:08,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:08,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1786139477, now seen corresponding path program 1 times [2024-09-12 18:17:08,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:17:08,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133984045] [2024-09-12 18:17:08,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:17:08,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:17:08,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:08,763 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:17:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:08,769 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 18:17:08,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:17:08,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133984045] [2024-09-12 18:17:08,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133984045] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:17:08,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [628144150] [2024-09-12 18:17:08,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:17:08,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:17:08,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:17:08,772 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 18:17:08,774 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 18:17:08,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:08,817 INFO L262 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-09-12 18:17:08,822 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:17:08,852 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 18:17:08,852 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:17:08,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [628144150] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:17:08,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:17:08,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-09-12 18:17:08,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155867426] [2024-09-12 18:17:08,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:17:08,853 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:17:08,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:17:08,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:17:08,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:17:08,854 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:08,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:17:08,896 INFO L93 Difference]: Finished difference Result 56 states and 61 transitions. [2024-09-12 18:17:08,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:17:08,897 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2024-09-12 18:17:08,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:17:08,898 INFO L225 Difference]: With dead ends: 56 [2024-09-12 18:17:08,898 INFO L226 Difference]: Without dead ends: 50 [2024-09-12 18:17:08,898 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:17:08,899 INFO L434 NwaCegarLoop]: 29 mSDtfsCounter, 7 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:17:08,900 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 54 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:17:08,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-09-12 18:17:08,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 43. [2024-09-12 18:17:08,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 28 states have (on average 1.6071428571428572) internal successors, (45), 38 states have internal predecessors, (45), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:08,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2024-09-12 18:17:08,916 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 12 [2024-09-12 18:17:08,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:17:08,917 INFO L474 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2024-09-12 18:17:08,917 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:08,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:08,918 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2024-09-12 18:17:08,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-09-12 18:17:08,919 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:17:08,919 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:17:08,936 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-12 18:17:09,123 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:17:09,124 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:17:09,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:09,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1786138387, now seen corresponding path program 1 times [2024-09-12 18:17:09,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:17:09,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180484937] [2024-09-12 18:17:09,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:17:09,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:17:09,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:09,191 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:17:09,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:09,196 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:17:09,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:17:09,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180484937] [2024-09-12 18:17:09,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180484937] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:17:09,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456997059] [2024-09-12 18:17:09,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:17:09,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:17:09,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:17:09,200 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 18:17:09,213 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 18:17:09,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:09,247 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:17:09,248 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:17:09,308 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:17:09,308 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:17:09,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1456997059] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:17:09,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:17:09,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-09-12 18:17:09,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379436642] [2024-09-12 18:17:09,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:17:09,310 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:17:09,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:17:09,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:17:09,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:17:09,311 INFO L87 Difference]: Start difference. First operand 43 states and 49 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:09,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:17:09,365 INFO L93 Difference]: Finished difference Result 55 states and 66 transitions. [2024-09-12 18:17:09,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:17:09,365 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2024-09-12 18:17:09,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:17:09,367 INFO L225 Difference]: With dead ends: 55 [2024-09-12 18:17:09,367 INFO L226 Difference]: Without dead ends: 54 [2024-09-12 18:17:09,368 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:17:09,369 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 9 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:17:09,369 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 98 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:17:09,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-09-12 18:17:09,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 46. [2024-09-12 18:17:09,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 31 states have (on average 1.5806451612903225) internal successors, (49), 41 states have internal predecessors, (49), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:09,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2024-09-12 18:17:09,378 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 53 transitions. Word has length 12 [2024-09-12 18:17:09,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:17:09,378 INFO L474 AbstractCegarLoop]: Abstraction has 46 states and 53 transitions. [2024-09-12 18:17:09,378 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:09,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:09,379 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2024-09-12 18:17:09,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-09-12 18:17:09,379 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:17:09,379 INFO L216 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:17:09,398 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-12 18:17:09,584 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:17:09,584 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:17:09,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:09,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1786138195, now seen corresponding path program 1 times [2024-09-12 18:17:09,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:17:09,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730827733] [2024-09-12 18:17:09,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:17:09,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:17:09,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:09,672 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:17:09,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:09,680 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:17:09,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:17:09,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730827733] [2024-09-12 18:17:09,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730827733] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:17:09,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [316106483] [2024-09-12 18:17:09,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:17:09,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:17:09,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:17:09,683 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 18:17:09,685 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 18:17:09,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:09,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:17:09,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:17:09,740 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:17:09,741 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:17:09,778 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:17:09,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [316106483] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:17:09,779 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:17:09,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-09-12 18:17:09,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022396072] [2024-09-12 18:17:09,780 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:17:09,780 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:17:09,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:17:09,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:17:09,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:17:09,781 INFO L87 Difference]: Start difference. First operand 46 states and 53 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 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 18:17:09,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:17:09,857 INFO L93 Difference]: Finished difference Result 85 states and 101 transitions. [2024-09-12 18:17:09,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:17:09,858 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2024-09-12 18:17:09,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:17:09,858 INFO L225 Difference]: With dead ends: 85 [2024-09-12 18:17:09,859 INFO L226 Difference]: Without dead ends: 52 [2024-09-12 18:17:09,859 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:17:09,860 INFO L434 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:17:09,864 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 136 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:17:09,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-09-12 18:17:09,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-09-12 18:17:09,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 37 states have (on average 1.4864864864864864) internal successors, (55), 47 states have internal predecessors, (55), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:09,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 59 transitions. [2024-09-12 18:17:09,880 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 59 transitions. Word has length 12 [2024-09-12 18:17:09,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:17:09,882 INFO L474 AbstractCegarLoop]: Abstraction has 52 states and 59 transitions. [2024-09-12 18:17:09,883 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 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 18:17:09,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:09,883 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 59 transitions. [2024-09-12 18:17:09,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-09-12 18:17:09,884 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:17:09,884 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1] [2024-09-12 18:17:09,902 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-12 18:17:10,084 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-12 18:17:10,085 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:17:10,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:10,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1683243211, now seen corresponding path program 1 times [2024-09-12 18:17:10,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:17:10,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321557521] [2024-09-12 18:17:10,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:17:10,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:17:10,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:10,135 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:17:10,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:10,139 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 18:17:10,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:17:10,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321557521] [2024-09-12 18:17:10,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321557521] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:17:10,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:17:10,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:17:10,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070144727] [2024-09-12 18:17:10,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:17:10,142 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:17:10,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:17:10,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:17:10,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:17:10,144 INFO L87 Difference]: Start difference. First operand 52 states and 59 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:10,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:17:10,165 INFO L93 Difference]: Finished difference Result 52 states and 59 transitions. [2024-09-12 18:17:10,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:17:10,169 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-09-12 18:17:10,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:17:10,170 INFO L225 Difference]: With dead ends: 52 [2024-09-12 18:17:10,170 INFO L226 Difference]: Without dead ends: 51 [2024-09-12 18:17:10,170 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:17:10,171 INFO L434 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:17:10,171 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 59 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:17:10,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-09-12 18:17:10,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2024-09-12 18:17:10,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 37 states have (on average 1.4324324324324325) internal successors, (53), 46 states have internal predecessors, (53), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:10,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 57 transitions. [2024-09-12 18:17:10,179 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 57 transitions. Word has length 17 [2024-09-12 18:17:10,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:17:10,180 INFO L474 AbstractCegarLoop]: Abstraction has 51 states and 57 transitions. [2024-09-12 18:17:10,180 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:10,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:10,180 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 57 transitions. [2024-09-12 18:17:10,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-09-12 18:17:10,181 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:17:10,181 INFO L216 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:17:10,181 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-12 18:17:10,181 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:17:10,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:10,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1755362083, now seen corresponding path program 2 times [2024-09-12 18:17:10,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:17:10,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053515264] [2024-09-12 18:17:10,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:17:10,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:17:10,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:10,229 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:17:10,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:10,232 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-09-12 18:17:10,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:17:10,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053515264] [2024-09-12 18:17:10,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053515264] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:17:10,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:17:10,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:17:10,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664255767] [2024-09-12 18:17:10,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:17:10,234 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:17:10,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:17:10,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:17:10,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:17:10,235 INFO L87 Difference]: Start difference. First operand 51 states and 57 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:10,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:17:10,249 INFO L93 Difference]: Finished difference Result 51 states and 57 transitions. [2024-09-12 18:17:10,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:17:10,251 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2024-09-12 18:17:10,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:17:10,252 INFO L225 Difference]: With dead ends: 51 [2024-09-12 18:17:10,252 INFO L226 Difference]: Without dead ends: 50 [2024-09-12 18:17:10,253 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:17:10,253 INFO L434 NwaCegarLoop]: 29 mSDtfsCounter, 1 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:17:10,253 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 57 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:17:10,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-09-12 18:17:10,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2024-09-12 18:17:10,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 37 states have (on average 1.4054054054054055) internal successors, (52), 45 states have internal predecessors, (52), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:10,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 56 transitions. [2024-09-12 18:17:10,269 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 56 transitions. Word has length 20 [2024-09-12 18:17:10,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:17:10,269 INFO L474 AbstractCegarLoop]: Abstraction has 50 states and 56 transitions. [2024-09-12 18:17:10,269 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:10,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:10,270 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 56 transitions. [2024-09-12 18:17:10,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-09-12 18:17:10,271 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:17:10,271 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:17:10,271 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-09-12 18:17:10,271 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:17:10,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:10,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1418389940, now seen corresponding path program 1 times [2024-09-12 18:17:10,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:17:10,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547294094] [2024-09-12 18:17:10,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:17:10,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:17:10,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:10,301 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:17:10,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:10,305 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 18:17:10,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:17:10,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547294094] [2024-09-12 18:17:10,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547294094] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:17:10,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:17:10,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:17:10,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010868126] [2024-09-12 18:17:10,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:17:10,307 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:17:10,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:17:10,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:17:10,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:17:10,311 INFO L87 Difference]: Start difference. First operand 50 states and 56 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:10,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:17:10,342 INFO L93 Difference]: Finished difference Result 61 states and 69 transitions. [2024-09-12 18:17:10,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:17:10,343 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2024-09-12 18:17:10,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:17:10,344 INFO L225 Difference]: With dead ends: 61 [2024-09-12 18:17:10,344 INFO L226 Difference]: Without dead ends: 60 [2024-09-12 18:17:10,344 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:17:10,345 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 7 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:17:10,345 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 49 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:17:10,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-09-12 18:17:10,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 55. [2024-09-12 18:17:10,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 50 states have internal predecessors, (61), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:10,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 65 transitions. [2024-09-12 18:17:10,353 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 65 transitions. Word has length 21 [2024-09-12 18:17:10,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:17:10,354 INFO L474 AbstractCegarLoop]: Abstraction has 55 states and 65 transitions. [2024-09-12 18:17:10,354 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:10,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:10,354 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 65 transitions. [2024-09-12 18:17:10,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-09-12 18:17:10,355 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:17:10,355 INFO L216 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:17:10,355 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-09-12 18:17:10,355 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:17:10,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:10,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1418350218, now seen corresponding path program 1 times [2024-09-12 18:17:10,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:17:10,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576349289] [2024-09-12 18:17:10,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:17:10,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:17:10,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:10,389 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:17:10,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:10,397 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 18:17:10,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:17:10,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576349289] [2024-09-12 18:17:10,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576349289] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:17:10,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:17:10,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:17:10,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490741360] [2024-09-12 18:17:10,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:17:10,399 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:17:10,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:17:10,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:17:10,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:17:10,400 INFO L87 Difference]: Start difference. First operand 55 states and 65 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:10,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:17:10,425 INFO L93 Difference]: Finished difference Result 55 states and 65 transitions. [2024-09-12 18:17:10,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:17:10,426 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2024-09-12 18:17:10,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:17:10,427 INFO L225 Difference]: With dead ends: 55 [2024-09-12 18:17:10,427 INFO L226 Difference]: Without dead ends: 54 [2024-09-12 18:17:10,427 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:17:10,428 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:17:10,428 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:17:10,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-09-12 18:17:10,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-09-12 18:17:10,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 49 states have internal predecessors, (60), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:10,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2024-09-12 18:17:10,435 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 21 [2024-09-12 18:17:10,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:17:10,436 INFO L474 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2024-09-12 18:17:10,436 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:10,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:10,436 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2024-09-12 18:17:10,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-09-12 18:17:10,437 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:17:10,437 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:17:10,437 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-09-12 18:17:10,437 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:17:10,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:10,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1020415101, now seen corresponding path program 1 times [2024-09-12 18:17:10,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:17:10,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052526525] [2024-09-12 18:17:10,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:17:10,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:17:10,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:10,465 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:17:10,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:10,468 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 18:17:10,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:17:10,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052526525] [2024-09-12 18:17:10,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052526525] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:17:10,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:17:10,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:17:10,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443387251] [2024-09-12 18:17:10,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:17:10,470 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:17:10,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:17:10,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:17:10,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:17:10,471 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:10,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:17:10,490 INFO L93 Difference]: Finished difference Result 66 states and 80 transitions. [2024-09-12 18:17:10,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:17:10,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2024-09-12 18:17:10,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:17:10,492 INFO L225 Difference]: With dead ends: 66 [2024-09-12 18:17:10,492 INFO L226 Difference]: Without dead ends: 65 [2024-09-12 18:17:10,492 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:17:10,493 INFO L434 NwaCegarLoop]: 31 mSDtfsCounter, 4 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:17:10,493 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 52 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:17:10,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-09-12 18:17:10,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 60. [2024-09-12 18:17:10,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 48 states have (on average 1.4375) internal successors, (69), 55 states have internal predecessors, (69), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:10,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 73 transitions. [2024-09-12 18:17:10,513 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 73 transitions. Word has length 22 [2024-09-12 18:17:10,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:17:10,513 INFO L474 AbstractCegarLoop]: Abstraction has 60 states and 73 transitions. [2024-09-12 18:17:10,513 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:10,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:10,514 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 73 transitions. [2024-09-12 18:17:10,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-09-12 18:17:10,514 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:17:10,514 INFO L216 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:17:10,515 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-09-12 18:17:10,515 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:17:10,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:10,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1019183739, now seen corresponding path program 1 times [2024-09-12 18:17:10,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:17:10,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047948744] [2024-09-12 18:17:10,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:17:10,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:17:10,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:10,547 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:17:10,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:10,550 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-09-12 18:17:10,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:17:10,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047948744] [2024-09-12 18:17:10,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047948744] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:17:10,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:17:10,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:17:10,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773966498] [2024-09-12 18:17:10,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:17:10,552 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:17:10,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:17:10,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:17:10,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:17:10,553 INFO L87 Difference]: Start difference. First operand 60 states and 73 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:10,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:17:10,579 INFO L93 Difference]: Finished difference Result 66 states and 77 transitions. [2024-09-12 18:17:10,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:17:10,580 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2024-09-12 18:17:10,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:17:10,581 INFO L225 Difference]: With dead ends: 66 [2024-09-12 18:17:10,581 INFO L226 Difference]: Without dead ends: 59 [2024-09-12 18:17:10,581 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:17:10,582 INFO L434 NwaCegarLoop]: 22 mSDtfsCounter, 5 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:17:10,582 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 55 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:17:10,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-09-12 18:17:10,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2024-09-12 18:17:10,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 48 states have (on average 1.375) internal successors, (66), 54 states have internal predecessors, (66), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:10,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 70 transitions. [2024-09-12 18:17:10,589 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 70 transitions. Word has length 22 [2024-09-12 18:17:10,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:17:10,590 INFO L474 AbstractCegarLoop]: Abstraction has 59 states and 70 transitions. [2024-09-12 18:17:10,590 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:10,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:10,591 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 70 transitions. [2024-09-12 18:17:10,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-09-12 18:17:10,591 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:17:10,591 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:17:10,591 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-09-12 18:17:10,591 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:17:10,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:10,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1568096978, now seen corresponding path program 1 times [2024-09-12 18:17:10,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:17:10,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390813867] [2024-09-12 18:17:10,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:17:10,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:17:10,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:10,615 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:17:10,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:10,618 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:17:10,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:17:10,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390813867] [2024-09-12 18:17:10,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390813867] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:17:10,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:17:10,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:17:10,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748579248] [2024-09-12 18:17:10,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:17:10,620 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:17:10,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:17:10,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:17:10,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:17:10,621 INFO L87 Difference]: Start difference. First operand 59 states and 70 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 18:17:10,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:17:10,644 INFO L93 Difference]: Finished difference Result 59 states and 70 transitions. [2024-09-12 18:17:10,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:17:10,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 23 [2024-09-12 18:17:10,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:17:10,645 INFO L225 Difference]: With dead ends: 59 [2024-09-12 18:17:10,646 INFO L226 Difference]: Without dead ends: 58 [2024-09-12 18:17:10,646 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:17:10,646 INFO L434 NwaCegarLoop]: 22 mSDtfsCounter, 7 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:17:10,647 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 32 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:17:10,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-09-12 18:17:10,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2024-09-12 18:17:10,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 48 states have (on average 1.3333333333333333) internal successors, (64), 53 states have internal predecessors, (64), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:10,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 68 transitions. [2024-09-12 18:17:10,664 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 68 transitions. Word has length 23 [2024-09-12 18:17:10,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:17:10,664 INFO L474 AbstractCegarLoop]: Abstraction has 58 states and 68 transitions. [2024-09-12 18:17:10,664 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 18:17:10,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:10,665 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 68 transitions. [2024-09-12 18:17:10,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-09-12 18:17:10,665 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:17:10,665 INFO L216 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:17:10,665 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-09-12 18:17:10,665 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:17:10,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:10,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1529924776, now seen corresponding path program 1 times [2024-09-12 18:17:10,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:17:10,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543581071] [2024-09-12 18:17:10,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:17:10,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:17:10,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:10,726 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:17:10,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:10,732 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-09-12 18:17:10,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:17:10,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543581071] [2024-09-12 18:17:10,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543581071] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:17:10,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:17:10,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:17:10,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210467891] [2024-09-12 18:17:10,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:17:10,733 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:17:10,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:17:10,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:17:10,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:17:10,733 INFO L87 Difference]: Start difference. First operand 58 states and 68 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:10,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:17:10,768 INFO L93 Difference]: Finished difference Result 64 states and 73 transitions. [2024-09-12 18:17:10,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:17:10,769 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2024-09-12 18:17:10,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:17:10,769 INFO L225 Difference]: With dead ends: 64 [2024-09-12 18:17:10,769 INFO L226 Difference]: Without dead ends: 63 [2024-09-12 18:17:10,770 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:17:10,770 INFO L434 NwaCegarLoop]: 21 mSDtfsCounter, 6 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:17:10,770 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 60 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:17:10,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-09-12 18:17:10,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 62. [2024-09-12 18:17:10,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 52 states have (on average 1.3076923076923077) internal successors, (68), 57 states have internal predecessors, (68), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:10,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 72 transitions. [2024-09-12 18:17:10,787 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 72 transitions. Word has length 23 [2024-09-12 18:17:10,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:17:10,790 INFO L474 AbstractCegarLoop]: Abstraction has 62 states and 72 transitions. [2024-09-12 18:17:10,790 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:10,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:10,790 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 72 transitions. [2024-09-12 18:17:10,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-09-12 18:17:10,791 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:17:10,791 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:17:10,791 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-09-12 18:17:10,791 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:17:10,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:10,792 INFO L85 PathProgramCache]: Analyzing trace with hash 592327376, now seen corresponding path program 1 times [2024-09-12 18:17:10,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:17:10,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850910674] [2024-09-12 18:17:10,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:17:10,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:17:10,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:10,844 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:17:10,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:10,847 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 18:17:10,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:17:10,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850910674] [2024-09-12 18:17:10,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850910674] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:17:10,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:17:10,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:17:10,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188132156] [2024-09-12 18:17:10,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:17:10,848 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:17:10,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:17:10,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:17:10,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:17:10,849 INFO L87 Difference]: Start difference. First operand 62 states and 72 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 18:17:10,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:17:10,876 INFO L93 Difference]: Finished difference Result 62 states and 72 transitions. [2024-09-12 18:17:10,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:17:10,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-09-12 18:17:10,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:17:10,877 INFO L225 Difference]: With dead ends: 62 [2024-09-12 18:17:10,878 INFO L226 Difference]: Without dead ends: 61 [2024-09-12 18:17:10,878 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:17:10,878 INFO L434 NwaCegarLoop]: 23 mSDtfsCounter, 8 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:17:10,879 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 43 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:17:10,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-09-12 18:17:10,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2024-09-12 18:17:10,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 52 states have (on average 1.2692307692307692) internal successors, (66), 56 states have internal predecessors, (66), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:10,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 70 transitions. [2024-09-12 18:17:10,891 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 70 transitions. Word has length 25 [2024-09-12 18:17:10,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:17:10,891 INFO L474 AbstractCegarLoop]: Abstraction has 61 states and 70 transitions. [2024-09-12 18:17:10,891 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 18:17:10,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:10,892 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 70 transitions. [2024-09-12 18:17:10,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-09-12 18:17:10,892 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:17:10,892 INFO L216 NwaCegarLoop]: trace histogram [5, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:17:10,893 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-09-12 18:17:10,893 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:17:10,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:10,893 INFO L85 PathProgramCache]: Analyzing trace with hash 203987126, now seen corresponding path program 1 times [2024-09-12 18:17:10,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:17:10,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520057817] [2024-09-12 18:17:10,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:17:10,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:17:10,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:10,969 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:17:10,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:10,972 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 11 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:17:10,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:17:10,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520057817] [2024-09-12 18:17:10,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520057817] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:17:10,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132825345] [2024-09-12 18:17:10,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:17:10,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:17:10,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:17:10,978 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 18:17:10,982 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 18:17:11,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:11,020 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:17:11,021 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:17:11,056 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 11 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:17:11,057 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:17:11,147 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 11 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:17:11,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132825345] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:17:11,148 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:17:11,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-09-12 18:17:11,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656182079] [2024-09-12 18:17:11,148 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:17:11,149 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-12 18:17:11,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:17:11,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-12 18:17:11,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:17:11,150 INFO L87 Difference]: Start difference. First operand 61 states and 70 transitions. Second operand has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 18 states have internal predecessors, (43), 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 18:17:11,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:17:11,226 INFO L93 Difference]: Finished difference Result 119 states and 143 transitions. [2024-09-12 18:17:11,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:17:11,227 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 18 states have internal predecessors, (43), 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 26 [2024-09-12 18:17:11,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:17:11,228 INFO L225 Difference]: With dead ends: 119 [2024-09-12 18:17:11,228 INFO L226 Difference]: Without dead ends: 77 [2024-09-12 18:17:11,228 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:17:11,229 INFO L434 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:17:11,229 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 98 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:17:11,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-09-12 18:17:11,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-09-12 18:17:11,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 68 states have (on average 1.2058823529411764) internal successors, (82), 72 states have internal predecessors, (82), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:11,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 86 transitions. [2024-09-12 18:17:11,242 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 86 transitions. Word has length 26 [2024-09-12 18:17:11,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:17:11,242 INFO L474 AbstractCegarLoop]: Abstraction has 77 states and 86 transitions. [2024-09-12 18:17:11,242 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 18 states have internal predecessors, (43), 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 18:17:11,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:11,243 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 86 transitions. [2024-09-12 18:17:11,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-09-12 18:17:11,244 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:17:11,244 INFO L216 NwaCegarLoop]: trace histogram [9, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:17:11,265 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 18:17:11,445 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:17:11,445 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:17:11,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:11,446 INFO L85 PathProgramCache]: Analyzing trace with hash 769243298, now seen corresponding path program 2 times [2024-09-12 18:17:11,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:17:11,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740353359] [2024-09-12 18:17:11,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:17:11,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:17:11,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:11,645 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:17:11,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:11,648 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 23 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:17:11,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:17:11,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740353359] [2024-09-12 18:17:11,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740353359] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:17:11,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381658869] [2024-09-12 18:17:11,649 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:17:11,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:17:11,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:17:11,651 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 18:17:11,653 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 18:17:11,694 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:17:11,694 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:17:11,695 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 18:17:11,697 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:17:11,766 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 23 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:17:11,766 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:17:12,092 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 23 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:17:12,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1381658869] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:17:12,093 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:17:12,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-09-12 18:17:12,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033419824] [2024-09-12 18:17:12,093 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:17:12,093 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-09-12 18:17:12,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:17:12,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-09-12 18:17:12,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-09-12 18:17:12,095 INFO L87 Difference]: Start difference. First operand 77 states and 86 transitions. Second operand has 34 states, 34 states have (on average 2.2058823529411766) internal successors, (75), 34 states have internal predecessors, (75), 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 18:17:12,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:17:12,205 INFO L93 Difference]: Finished difference Result 151 states and 183 transitions. [2024-09-12 18:17:12,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-09-12 18:17:12,209 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.2058823529411766) internal successors, (75), 34 states have internal predecessors, (75), 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 42 [2024-09-12 18:17:12,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:17:12,209 INFO L225 Difference]: With dead ends: 151 [2024-09-12 18:17:12,209 INFO L226 Difference]: Without dead ends: 109 [2024-09-12 18:17:12,210 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-09-12 18:17:12,211 INFO L434 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:17:12,211 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 104 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:17:12,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-09-12 18:17:12,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-09-12 18:17:12,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 100 states have (on average 1.14) internal successors, (114), 104 states have internal predecessors, (114), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:12,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 118 transitions. [2024-09-12 18:17:12,222 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 118 transitions. Word has length 42 [2024-09-12 18:17:12,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:17:12,223 INFO L474 AbstractCegarLoop]: Abstraction has 109 states and 118 transitions. [2024-09-12 18:17:12,223 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.2058823529411766) internal successors, (75), 34 states have internal predecessors, (75), 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 18:17:12,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:12,223 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 118 transitions. [2024-09-12 18:17:12,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-09-12 18:17:12,225 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:17:12,225 INFO L216 NwaCegarLoop]: trace histogram [17, 16, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:17:12,242 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 18:17:12,429 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-09-12 18:17:12,430 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:17:12,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:12,431 INFO L85 PathProgramCache]: Analyzing trace with hash -61083526, now seen corresponding path program 3 times [2024-09-12 18:17:12,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:17:12,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723607780] [2024-09-12 18:17:12,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:17:12,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:17:12,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:13,134 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:17:13,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:13,137 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 47 proven. 450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:17:13,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:17:13,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723607780] [2024-09-12 18:17:13,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723607780] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:17:13,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2144007332] [2024-09-12 18:17:13,138 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:17:13,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:17:13,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:17:13,139 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 18:17:13,141 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 18:17:13,174 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 18:17:13,174 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:17:13,175 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:17:13,176 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:17:13,245 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2024-09-12 18:17:13,245 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:17:13,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2144007332] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:17:13,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:17:13,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [33] total 36 [2024-09-12 18:17:13,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742522200] [2024-09-12 18:17:13,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:17:13,246 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:17:13,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:17:13,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:17:13,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=294, Invalid=966, Unknown=0, NotChecked=0, Total=1260 [2024-09-12 18:17:13,247 INFO L87 Difference]: Start difference. First operand 109 states and 118 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 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 18:17:13,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:17:13,298 INFO L93 Difference]: Finished difference Result 135 states and 146 transitions. [2024-09-12 18:17:13,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:17:13,299 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 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 74 [2024-09-12 18:17:13,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:17:13,300 INFO L225 Difference]: With dead ends: 135 [2024-09-12 18:17:13,300 INFO L226 Difference]: Without dead ends: 106 [2024-09-12 18:17:13,301 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=294, Invalid=966, Unknown=0, NotChecked=0, Total=1260 [2024-09-12 18:17:13,302 INFO L434 NwaCegarLoop]: 23 mSDtfsCounter, 6 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:17:13,302 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 78 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:17:13,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-09-12 18:17:13,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 103. [2024-09-12 18:17:13,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 95 states have (on average 1.105263157894737) internal successors, (105), 98 states have internal predecessors, (105), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:13,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 109 transitions. [2024-09-12 18:17:13,324 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 109 transitions. Word has length 74 [2024-09-12 18:17:13,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:17:13,324 INFO L474 AbstractCegarLoop]: Abstraction has 103 states and 109 transitions. [2024-09-12 18:17:13,324 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 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 18:17:13,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:13,325 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 109 transitions. [2024-09-12 18:17:13,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-09-12 18:17:13,326 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:17:13,326 INFO L216 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:17:13,343 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 18:17:13,526 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-09-12 18:17:13,527 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:17:13,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:13,528 INFO L85 PathProgramCache]: Analyzing trace with hash 968454929, now seen corresponding path program 1 times [2024-09-12 18:17:13,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:17:13,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753035468] [2024-09-12 18:17:13,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:17:13,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:17:13,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:13,593 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:17:13,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:13,596 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-09-12 18:17:13,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:17:13,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753035468] [2024-09-12 18:17:13,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753035468] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:17:13,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041936613] [2024-09-12 18:17:13,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:17:13,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:17:13,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:17:13,600 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 18:17:13,609 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 18:17:13,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:13,663 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-09-12 18:17:13,665 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:17:14,694 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 18:17:14,695 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:17:15,634 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 18:17:15,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1041936613] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:17:15,635 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:17:15,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 33, 33] total 66 [2024-09-12 18:17:15,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111432241] [2024-09-12 18:17:15,635 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:17:15,635 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2024-09-12 18:17:15,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:17:15,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2024-09-12 18:17:15,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1061, Invalid=3229, Unknown=0, NotChecked=0, Total=4290 [2024-09-12 18:17:15,639 INFO L87 Difference]: Start difference. First operand 103 states and 109 transitions. Second operand has 66 states, 66 states have (on average 2.212121212121212) internal successors, (146), 66 states have internal predecessors, (146), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:16,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:17:16,319 INFO L93 Difference]: Finished difference Result 134 states and 144 transitions. [2024-09-12 18:17:16,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-09-12 18:17:16,319 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 2.212121212121212) internal successors, (146), 66 states have internal predecessors, (146), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 76 [2024-09-12 18:17:16,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:17:16,320 INFO L225 Difference]: With dead ends: 134 [2024-09-12 18:17:16,320 INFO L226 Difference]: Without dead ends: 98 [2024-09-12 18:17:16,323 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2177 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=2216, Invalid=7486, Unknown=0, NotChecked=0, Total=9702 [2024-09-12 18:17:16,323 INFO L434 NwaCegarLoop]: 21 mSDtfsCounter, 5 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:17:16,323 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 179 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:17:16,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-09-12 18:17:16,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-09-12 18:17:16,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 90 states have (on average 1.0777777777777777) internal successors, (97), 93 states have internal predecessors, (97), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:16,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 101 transitions. [2024-09-12 18:17:16,332 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 101 transitions. Word has length 76 [2024-09-12 18:17:16,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:17:16,332 INFO L474 AbstractCegarLoop]: Abstraction has 98 states and 101 transitions. [2024-09-12 18:17:16,332 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 2.212121212121212) internal successors, (146), 66 states have internal predecessors, (146), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:16,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:16,333 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 101 transitions. [2024-09-12 18:17:16,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-09-12 18:17:16,333 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:17:16,334 INFO L216 NwaCegarLoop]: trace histogram [17, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:17:16,350 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 18:17:16,534 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:17:16,535 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:17:16,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:16,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1189837882, now seen corresponding path program 1 times [2024-09-12 18:17:16,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:17:16,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108148553] [2024-09-12 18:17:16,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:17:16,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:17:16,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:16,570 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:17:16,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:16,573 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-09-12 18:17:16,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:17:16,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108148553] [2024-09-12 18:17:16,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108148553] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:17:16,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:17:16,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:17:16,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437709759] [2024-09-12 18:17:16,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:17:16,574 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:17:16,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:17:16,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:17:16,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:17:16,585 INFO L87 Difference]: Start difference. First operand 98 states and 101 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 18:17:16,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:17:16,602 INFO L93 Difference]: Finished difference Result 98 states and 101 transitions. [2024-09-12 18:17:16,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:17:16,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 79 [2024-09-12 18:17:16,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:17:16,603 INFO L225 Difference]: With dead ends: 98 [2024-09-12 18:17:16,603 INFO L226 Difference]: Without dead ends: 97 [2024-09-12 18:17:16,604 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:17:16,604 INFO L434 NwaCegarLoop]: 21 mSDtfsCounter, 9 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:17:16,604 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 30 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:17:16,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-09-12 18:17:16,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2024-09-12 18:17:16,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 90 states have (on average 1.0555555555555556) internal successors, (95), 92 states have internal predecessors, (95), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:16,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 99 transitions. [2024-09-12 18:17:16,613 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 99 transitions. Word has length 79 [2024-09-12 18:17:16,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:17:16,613 INFO L474 AbstractCegarLoop]: Abstraction has 97 states and 99 transitions. [2024-09-12 18:17:16,613 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 18:17:16,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:16,614 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 99 transitions. [2024-09-12 18:17:16,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-09-12 18:17:16,614 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:17:16,614 INFO L216 NwaCegarLoop]: trace histogram [18, 16, 16, 16, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:17:16,615 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-09-12 18:17:16,615 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:17:16,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:16,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1011078598, now seen corresponding path program 1 times [2024-09-12 18:17:16,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:17:16,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072349799] [2024-09-12 18:17:16,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:17:16,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:17:16,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:16,673 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:17:16,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:16,675 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-09-12 18:17:16,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:17:16,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072349799] [2024-09-12 18:17:16,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072349799] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:17:16,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303608289] [2024-09-12 18:17:16,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:17:16,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:17:16,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:17:16,680 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 18:17:16,690 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 18:17:16,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:16,733 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-09-12 18:17:16,735 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:17:17,280 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 34 proven. 512 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:17:17,280 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:17:18,378 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 34 proven. 512 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:17:18,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [303608289] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:17:18,379 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:17:18,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 35, 35] total 72 [2024-09-12 18:17:18,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809413067] [2024-09-12 18:17:18,380 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:17:18,380 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2024-09-12 18:17:18,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:17:18,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2024-09-12 18:17:18,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1200, Invalid=3912, Unknown=0, NotChecked=0, Total=5112 [2024-09-12 18:17:18,383 INFO L87 Difference]: Start difference. First operand 97 states and 99 transitions. Second operand has 72 states, 72 states have (on average 2.1944444444444446) internal successors, (158), 72 states have internal predecessors, (158), 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 18:17:20,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:17:20,089 INFO L93 Difference]: Finished difference Result 207 states and 230 transitions. [2024-09-12 18:17:20,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-09-12 18:17:20,090 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 72 states have (on average 2.1944444444444446) internal successors, (158), 72 states have internal predecessors, (158), 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 18:17:20,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:17:20,091 INFO L225 Difference]: With dead ends: 207 [2024-09-12 18:17:20,091 INFO L226 Difference]: Without dead ends: 181 [2024-09-12 18:17:20,095 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4708 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=3590, Invalid=15042, Unknown=0, NotChecked=0, Total=18632 [2024-09-12 18:17:20,096 INFO L434 NwaCegarLoop]: 15 mSDtfsCounter, 8 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:17:20,096 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 185 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:17:20,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-09-12 18:17:20,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 171. [2024-09-12 18:17:20,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 164 states have (on average 1.0365853658536586) internal successors, (170), 166 states have internal predecessors, (170), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:20,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 174 transitions. [2024-09-12 18:17:20,110 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 174 transitions. Word has length 81 [2024-09-12 18:17:20,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:17:20,110 INFO L474 AbstractCegarLoop]: Abstraction has 171 states and 174 transitions. [2024-09-12 18:17:20,111 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 72 states have (on average 2.1944444444444446) internal successors, (158), 72 states have internal predecessors, (158), 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 18:17:20,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:20,111 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 174 transitions. [2024-09-12 18:17:20,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-09-12 18:17:20,112 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:17:20,112 INFO L216 NwaCegarLoop]: trace histogram [34, 33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:17:20,128 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-09-12 18:17:20,316 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:17:20,317 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:17:20,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:20,318 INFO L85 PathProgramCache]: Analyzing trace with hash -948042742, now seen corresponding path program 1 times [2024-09-12 18:17:20,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:17:20,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938188923] [2024-09-12 18:17:20,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:17:20,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:17:20,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:22,543 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:17:22,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:22,553 INFO L134 CoverageAnalysis]: Checked inductivity of 2213 backedges. 34 proven. 2178 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 18:17:22,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:17:22,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938188923] [2024-09-12 18:17:22,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938188923] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:17:22,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212952426] [2024-09-12 18:17:22,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:17:22,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:17:22,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:17:22,560 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 18:17:22,562 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 18:17:22,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:22,636 INFO L262 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 68 conjuncts are in the unsatisfiable core [2024-09-12 18:17:22,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:17:22,873 INFO L134 CoverageAnalysis]: Checked inductivity of 2213 backedges. 34 proven. 2178 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 18:17:22,873 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:17:26,464 INFO L134 CoverageAnalysis]: Checked inductivity of 2213 backedges. 34 proven. 2178 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 18:17:26,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1212952426] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:17:26,464 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:17:26,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [69, 69, 69] total 138 [2024-09-12 18:17:26,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942170873] [2024-09-12 18:17:26,464 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:17:26,465 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 138 states [2024-09-12 18:17:26,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:17:26,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 138 interpolants. [2024-09-12 18:17:26,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4830, Invalid=14076, Unknown=0, NotChecked=0, Total=18906 [2024-09-12 18:17:26,479 INFO L87 Difference]: Start difference. First operand 171 states and 174 transitions. Second operand has 138 states, 138 states have (on average 2.101449275362319) internal successors, (290), 138 states have internal predecessors, (290), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:27,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:17:27,095 INFO L93 Difference]: Finished difference Result 339 states and 378 transitions. [2024-09-12 18:17:27,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2024-09-12 18:17:27,099 INFO L78 Accepts]: Start accepts. Automaton has has 138 states, 138 states have (on average 2.101449275362319) internal successors, (290), 138 states have internal predecessors, (290), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2024-09-12 18:17:27,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:17:27,101 INFO L225 Difference]: With dead ends: 339 [2024-09-12 18:17:27,101 INFO L226 Difference]: Without dead ends: 307 [2024-09-12 18:17:27,109 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5872 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=4830, Invalid=14076, Unknown=0, NotChecked=0, Total=18906 [2024-09-12 18:17:27,109 INFO L434 NwaCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:17:27,110 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 236 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:17:27,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2024-09-12 18:17:27,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 307. [2024-09-12 18:17:27,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 300 states have (on average 1.02) internal successors, (306), 302 states have internal predecessors, (306), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:27,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 310 transitions. [2024-09-12 18:17:27,184 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 310 transitions. Word has length 154 [2024-09-12 18:17:27,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:17:27,184 INFO L474 AbstractCegarLoop]: Abstraction has 307 states and 310 transitions. [2024-09-12 18:17:27,185 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 138 states, 138 states have (on average 2.101449275362319) internal successors, (290), 138 states have internal predecessors, (290), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:27,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:27,186 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 310 transitions. [2024-09-12 18:17:27,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2024-09-12 18:17:27,189 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:17:27,189 INFO L216 NwaCegarLoop]: trace histogram [68, 67, 67, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:17:27,206 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-09-12 18:17:27,393 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-09-12 18:17:27,394 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:17:27,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:27,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1766531488, now seen corresponding path program 2 times [2024-09-12 18:17:27,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:17:27,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635196587] [2024-09-12 18:17:27,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:17:27,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:17:27,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:35,015 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:17:35,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:17:35,026 INFO L134 CoverageAnalysis]: Checked inductivity of 9047 backedges. 68 proven. 8978 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 18:17:35,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:17:35,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635196587] [2024-09-12 18:17:35,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635196587] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:17:35,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388281047] [2024-09-12 18:17:35,030 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:17:35,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:17:35,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:17:35,033 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 18:17:35,034 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 18:17:35,187 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:17:35,188 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:17:35,193 INFO L262 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 136 conjuncts are in the unsatisfiable core [2024-09-12 18:17:35,199 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:17:35,780 INFO L134 CoverageAnalysis]: Checked inductivity of 9047 backedges. 68 proven. 8978 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 18:17:35,784 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:17:47,708 INFO L134 CoverageAnalysis]: Checked inductivity of 9047 backedges. 68 proven. 8978 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 18:17:47,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1388281047] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:17:47,708 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:17:47,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [137, 137, 137] total 274 [2024-09-12 18:17:47,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954016069] [2024-09-12 18:17:47,710 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:17:47,716 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 274 states [2024-09-12 18:17:47,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:17:47,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 274 interpolants. [2024-09-12 18:17:47,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18906, Invalid=55896, Unknown=0, NotChecked=0, Total=74802 [2024-09-12 18:17:47,737 INFO L87 Difference]: Start difference. First operand 307 states and 310 transitions. Second operand has 274 states, 274 states have (on average 2.051094890510949) internal successors, (562), 274 states have internal predecessors, (562), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:49,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:17:49,208 INFO L93 Difference]: Finished difference Result 611 states and 684 transitions. [2024-09-12 18:17:49,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 271 states. [2024-09-12 18:17:49,209 INFO L78 Accepts]: Start accepts. Automaton has has 274 states, 274 states have (on average 2.051094890510949) internal successors, (562), 274 states have internal predecessors, (562), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 290 [2024-09-12 18:17:49,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:17:49,214 INFO L225 Difference]: With dead ends: 611 [2024-09-12 18:17:49,214 INFO L226 Difference]: Without dead ends: 579 [2024-09-12 18:17:49,220 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 718 GetRequests, 446 SyntacticMatches, 0 SemanticMatches, 272 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23314 ImplicationChecksByTransitivity, 16.3s TimeCoverageRelationStatistics Valid=18906, Invalid=55896, Unknown=0, NotChecked=0, Total=74802 [2024-09-12 18:17:49,221 INFO L434 NwaCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:17:49,221 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 303 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:17:49,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2024-09-12 18:17:49,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 579. [2024-09-12 18:17:49,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 572 states have (on average 1.0104895104895104) internal successors, (578), 574 states have internal predecessors, (578), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:49,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 582 transitions. [2024-09-12 18:17:49,321 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 582 transitions. Word has length 290 [2024-09-12 18:17:49,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:17:49,323 INFO L474 AbstractCegarLoop]: Abstraction has 579 states and 582 transitions. [2024-09-12 18:17:49,324 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 274 states, 274 states have (on average 2.051094890510949) internal successors, (562), 274 states have internal predecessors, (562), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:17:49,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:49,324 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 582 transitions. [2024-09-12 18:17:49,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 563 [2024-09-12 18:17:49,334 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:17:49,335 INFO L216 NwaCegarLoop]: trace histogram [136, 135, 135, 135, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:17:49,350 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 18:17:49,535 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-09-12 18:17:49,536 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:17:49,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:17:49,536 INFO L85 PathProgramCache]: Analyzing trace with hash -718253812, now seen corresponding path program 3 times [2024-09-12 18:17:49,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:17:49,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059472952] [2024-09-12 18:17:49,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:17:49,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:17:49,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:18:24,097 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:18:24,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:18:24,113 INFO L134 CoverageAnalysis]: Checked inductivity of 36587 backedges. 136 proven. 36450 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 18:18:24,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:18:24,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059472952] [2024-09-12 18:18:24,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059472952] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:18:24,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [152510832] [2024-09-12 18:18:24,114 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:18:24,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:18:24,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:18:24,116 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 18:18:24,117 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 18:18:24,193 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 18:18:24,193 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:18:24,195 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:18:24,201 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:18:25,144 INFO L134 CoverageAnalysis]: Checked inductivity of 36587 backedges. 136 proven. 1 refuted. 0 times theorem prover too weak. 36450 trivial. 0 not checked. [2024-09-12 18:18:25,144 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:18:26,109 INFO L134 CoverageAnalysis]: Checked inductivity of 36587 backedges. 136 proven. 1 refuted. 0 times theorem prover too weak. 36450 trivial. 0 not checked. [2024-09-12 18:18:26,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [152510832] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:18:26,110 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:18:26,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [273, 6, 6] total 281 [2024-09-12 18:18:26,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757026803] [2024-09-12 18:18:26,111 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:18:26,112 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 281 states [2024-09-12 18:18:26,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:18:26,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 281 interpolants. [2024-09-12 18:18:26,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18800, Invalid=59880, Unknown=0, NotChecked=0, Total=78680 [2024-09-12 18:18:26,126 INFO L87 Difference]: Start difference. First operand 579 states and 582 transitions. Second operand has 281 states, 281 states have (on average 2.106761565836299) internal successors, (592), 281 states have internal predecessors, (592), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:18:58,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:18:58,474 INFO L93 Difference]: Finished difference Result 629 states and 638 transitions. [2024-09-12 18:18:58,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 279 states. [2024-09-12 18:18:58,475 INFO L78 Accepts]: Start accepts. Automaton has has 281 states, 281 states have (on average 2.106761565836299) internal successors, (592), 281 states have internal predecessors, (592), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 562 [2024-09-12 18:18:58,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:18:58,478 INFO L225 Difference]: With dead ends: 629 [2024-09-12 18:18:58,478 INFO L226 Difference]: Without dead ends: 597 [2024-09-12 18:18:58,491 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1669 GetRequests, 1119 SyntacticMatches, 0 SemanticMatches, 550 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56841 ImplicationChecksByTransitivity, 52.1s TimeCoverageRelationStatistics Valid=57418, Invalid=246734, Unknown=0, NotChecked=0, Total=304152 [2024-09-12 18:18:58,492 INFO L434 NwaCegarLoop]: 18 mSDtfsCounter, 15 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:18:58,493 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 208 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:18:58,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2024-09-12 18:18:58,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 595. [2024-09-12 18:18:58,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 588 states have (on average 1.0136054421768708) internal successors, (596), 590 states have internal predecessors, (596), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:18:58,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 600 transitions. [2024-09-12 18:18:58,543 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 600 transitions. Word has length 562 [2024-09-12 18:18:58,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:18:58,544 INFO L474 AbstractCegarLoop]: Abstraction has 595 states and 600 transitions. [2024-09-12 18:18:58,545 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 281 states, 281 states have (on average 2.106761565836299) internal successors, (592), 281 states have internal predecessors, (592), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:18:58,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:18:58,545 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 600 transitions. [2024-09-12 18:18:58,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2024-09-12 18:18:58,560 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:18:58,560 INFO L216 NwaCegarLoop]: trace histogram [137, 136, 136, 136, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:18:58,581 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-09-12 18:18:58,760 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:18:58,761 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:18:58,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:18:58,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1342593736, now seen corresponding path program 1 times [2024-09-12 18:18:58,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:18:58,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154244841] [2024-09-12 18:18:58,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:18:58,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:18:58,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:18:58,904 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:18:58,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:18:58,907 INFO L134 CoverageAnalysis]: Checked inductivity of 37133 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 37129 trivial. 0 not checked. [2024-09-12 18:18:58,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:18:58,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154244841] [2024-09-12 18:18:58,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154244841] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:18:58,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39691986] [2024-09-12 18:18:58,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:18:58,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:18:58,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:18:58,910 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 18:18:58,911 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 18:18:59,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:18:59,113 INFO L262 TraceCheckSpWp]: Trace formula consists of 1152 conjuncts, 274 conjuncts are in the unsatisfiable core [2024-09-12 18:18:59,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:19:20,602 INFO L134 CoverageAnalysis]: Checked inductivity of 37133 backedges. 137 proven. 36992 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:19:20,602 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:20:17,844 INFO L134 CoverageAnalysis]: Checked inductivity of 37133 backedges. 137 proven. 36992 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:20:17,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [39691986] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:20:17,844 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:20:17,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 275, 275] total 550 [2024-09-12 18:20:17,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656450116] [2024-09-12 18:20:17,845 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:20:17,847 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 550 states [2024-09-12 18:20:17,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:20:17,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 550 interpolants. [2024-09-12 18:20:17,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75355, Invalid=226595, Unknown=0, NotChecked=0, Total=301950 [2024-09-12 18:20:17,885 INFO L87 Difference]: Start difference. First operand 595 states and 600 transitions. Second operand has 550 states, 550 states have (on average 2.0472727272727274) internal successors, (1126), 550 states have internal predecessors, (1126), 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 18:20:23,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:20:23,929 INFO L93 Difference]: Finished difference Result 1187 states and 1333 transitions. [2024-09-12 18:20:23,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 549 states. [2024-09-12 18:20:23,930 INFO L78 Accepts]: Start accepts. Automaton has has 550 states, 550 states have (on average 2.0472727272727274) internal successors, (1126), 550 states have internal predecessors, (1126), 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 565 [2024-09-12 18:20:23,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:20:23,935 INFO L225 Difference]: With dead ends: 1187 [2024-09-12 18:20:23,935 INFO L226 Difference]: Without dead ends: 1143 [2024-09-12 18:20:23,947 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1134 GetRequests, 586 SyntacticMatches, 0 SemanticMatches, 548 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92889 ImplicationChecksByTransitivity, 77.4s TimeCoverageRelationStatistics Valid=75355, Invalid=226595, Unknown=0, NotChecked=0, Total=301950 [2024-09-12 18:20:23,948 INFO L434 NwaCegarLoop]: 20 mSDtfsCounter, 1 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 1227 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 1227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:20:23,948 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 390 Invalid, 1227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1227 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-09-12 18:20:23,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1143 states. [2024-09-12 18:20:24,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1143 to 1143. [2024-09-12 18:20:24,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1143 states, 1136 states have (on average 1.006161971830986) internal successors, (1143), 1138 states have internal predecessors, (1143), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:20:24,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1143 states to 1143 states and 1147 transitions. [2024-09-12 18:20:24,036 INFO L78 Accepts]: Start accepts. Automaton has 1143 states and 1147 transitions. Word has length 565 [2024-09-12 18:20:24,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:20:24,037 INFO L474 AbstractCegarLoop]: Abstraction has 1143 states and 1147 transitions. [2024-09-12 18:20:24,038 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 550 states, 550 states have (on average 2.0472727272727274) internal successors, (1126), 550 states have internal predecessors, (1126), 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 18:20:24,038 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:20:24,038 INFO L276 IsEmpty]: Start isEmpty. Operand 1143 states and 1147 transitions. [2024-09-12 18:20:24,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1116 [2024-09-12 18:20:24,047 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:20:24,047 INFO L216 NwaCegarLoop]: trace histogram [276, 273, 273, 273, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1] [2024-09-12 18:20:24,065 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-09-12 18:20:24,247 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-09-12 18:20:24,248 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-09-12 18:20:24,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:20:24,249 INFO L85 PathProgramCache]: Analyzing trace with hash 334534328, now seen corresponding path program 2 times [2024-09-12 18:20:24,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:20:24,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985285426] [2024-09-12 18:20:24,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:20:24,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:20:25,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat