./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-lit/hh2012-ex3.i --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-lit/hh2012-ex3.i -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3c7177334f88b94ca4ee99044935e396702561856a6f48616f98f91aafc609bb --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-12 18:06:00,419 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 18:06:00,501 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 18:06:00,509 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 18:06:00,510 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 18:06:00,544 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 18:06:00,546 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 18:06:00,547 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 18:06:00,547 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 18:06:00,547 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 18:06:00,548 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 18:06:00,548 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 18:06:00,551 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 18:06:00,551 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 18:06:00,552 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 18:06:00,552 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 18:06:00,552 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 18:06:00,552 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 18:06:00,553 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 18:06:00,553 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 18:06:00,553 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 18:06:00,557 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 18:06:00,557 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 18:06:00,557 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 18:06:00,558 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 18:06:00,558 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 18:06:00,558 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 18:06:00,558 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 18:06:00,559 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 18:06:00,559 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 18:06:00,559 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 18:06:00,559 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 18:06:00,559 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:06:00,560 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 18:06:00,560 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 18:06:00,563 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 18:06:00,564 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 18:06:00,564 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 18:06:00,564 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 18:06:00,565 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 18:06:00,565 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 18:06:00,566 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 18:06:00,566 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c7177334f88b94ca4ee99044935e396702561856a6f48616f98f91aafc609bb Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 18:06:00,901 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 18:06:00,933 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 18:06:00,937 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 18:06:00,938 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 18:06:00,939 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 18:06:00,940 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loop-lit/hh2012-ex3.i [2024-09-12 18:06:02,705 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 18:06:02,863 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 18:06:02,863 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/hh2012-ex3.i [2024-09-12 18:06:02,870 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/d782a984e/58e2da97de2940ce937beace18f4bd74/FLAG09fde00d5 [2024-09-12 18:06:02,889 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/d782a984e/58e2da97de2940ce937beace18f4bd74 [2024-09-12 18:06:02,893 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 18:06:02,894 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 18:06:02,896 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 18:06:02,897 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 18:06:02,903 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 18:06:02,904 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:06:02" (1/1) ... [2024-09-12 18:06:02,905 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@387e3bca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:02, skipping insertion in model container [2024-09-12 18:06:02,905 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:06:02" (1/1) ... [2024-09-12 18:06:02,926 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 18:06:03,096 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/hh2012-ex3.i[799,812] [2024-09-12 18:06:03,119 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:06:03,132 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 18:06:03,143 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/hh2012-ex3.i[799,812] [2024-09-12 18:06:03,152 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:06:03,170 INFO L204 MainTranslator]: Completed translation [2024-09-12 18:06:03,171 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:03 WrapperNode [2024-09-12 18:06:03,171 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 18:06:03,172 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 18:06:03,173 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 18:06:03,173 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 18:06:03,180 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:03" (1/1) ... [2024-09-12 18:06:03,186 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:03" (1/1) ... [2024-09-12 18:06:03,192 INFO L138 Inliner]: procedures = 14, calls = 14, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 18:06:03,193 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 18:06:03,193 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 18:06:03,193 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 18:06:03,194 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 18:06:03,204 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:03" (1/1) ... [2024-09-12 18:06:03,204 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:03" (1/1) ... [2024-09-12 18:06:03,209 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:03" (1/1) ... [2024-09-12 18:06:03,227 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-12 18:06:03,228 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:03" (1/1) ... [2024-09-12 18:06:03,228 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:03" (1/1) ... [2024-09-12 18:06:03,231 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:03" (1/1) ... [2024-09-12 18:06:03,234 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:03" (1/1) ... [2024-09-12 18:06:03,235 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:03" (1/1) ... [2024-09-12 18:06:03,236 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:03" (1/1) ... [2024-09-12 18:06:03,237 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 18:06:03,238 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 18:06:03,238 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 18:06:03,238 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 18:06:03,239 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:03" (1/1) ... [2024-09-12 18:06:03,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:06:03,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:06:03,276 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-12 18:06:03,286 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-12 18:06:03,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 18:06:03,337 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 18:06:03,338 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 18:06:03,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 18:06:03,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 18:06:03,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 18:06:03,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 18:06:03,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 18:06:03,339 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 18:06:03,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 18:06:03,429 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 18:06:03,432 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 18:06:03,577 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-09-12 18:06:03,577 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 18:06:03,598 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 18:06:03,598 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-12 18:06:03,599 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:06:03 BoogieIcfgContainer [2024-09-12 18:06:03,599 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 18:06:03,601 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 18:06:03,601 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 18:06:03,605 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 18:06:03,605 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 06:06:02" (1/3) ... [2024-09-12 18:06:03,606 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@128b42d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:06:03, skipping insertion in model container [2024-09-12 18:06:03,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:06:03" (2/3) ... [2024-09-12 18:06:03,608 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@128b42d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:06:03, skipping insertion in model container [2024-09-12 18:06:03,609 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:06:03" (3/3) ... [2024-09-12 18:06:03,610 INFO L112 eAbstractionObserver]: Analyzing ICFG hh2012-ex3.i [2024-09-12 18:06:03,629 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 18:06:03,630 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2024-09-12 18:06:03,697 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 18:06:03,705 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;@674feef2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 18:06:03,705 INFO L337 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-09-12 18:06:03,710 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 22 states have (on average 1.8181818181818181) internal successors, (40), 36 states have internal predecessors, (40), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 18:06:03,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-09-12 18:06:03,717 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:03,718 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:03,719 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:06:03,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:03,727 INFO L85 PathProgramCache]: Analyzing trace with hash 714895296, now seen corresponding path program 1 times [2024-09-12 18:06:03,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:03,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240498367] [2024-09-12 18:06:03,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:03,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:03,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:03,979 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:03,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:03,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:03,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:03,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240498367] [2024-09-12 18:06:03,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240498367] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:06:03,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:06:03,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:06:04,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967368707] [2024-09-12 18:06:04,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:06:04,010 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:06:04,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:04,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:06:04,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:06:04,037 INFO L87 Difference]: Start difference. First operand has 49 states, 22 states have (on average 1.8181818181818181) internal successors, (40), 36 states have internal predecessors, (40), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:04,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:04,124 INFO L93 Difference]: Finished difference Result 109 states and 157 transitions. [2024-09-12 18:06:04,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:06:04,128 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 8 [2024-09-12 18:06:04,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:04,136 INFO L225 Difference]: With dead ends: 109 [2024-09-12 18:06:04,136 INFO L226 Difference]: Without dead ends: 61 [2024-09-12 18:06:04,140 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:06:04,144 INFO L434 NwaCegarLoop]: 43 mSDtfsCounter, 9 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:04,145 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 125 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:06:04,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-09-12 18:06:04,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 49. [2024-09-12 18:06:04,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 24 states have (on average 1.625) internal successors, (39), 37 states have internal predecessors, (39), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 18:06:04,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 58 transitions. [2024-09-12 18:06:04,184 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 58 transitions. Word has length 8 [2024-09-12 18:06:04,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:04,184 INFO L474 AbstractCegarLoop]: Abstraction has 49 states and 58 transitions. [2024-09-12 18:06:04,184 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:04,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:04,185 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 58 transitions. [2024-09-12 18:06:04,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-09-12 18:06:04,186 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:04,186 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:04,186 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 18:06:04,187 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:06:04,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:04,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1296964287, now seen corresponding path program 1 times [2024-09-12 18:06:04,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:04,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494033247] [2024-09-12 18:06:04,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:04,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:04,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:04,253 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:04,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:04,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:04,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:04,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494033247] [2024-09-12 18:06:04,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494033247] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:06:04,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:06:04,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:06:04,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748548083] [2024-09-12 18:06:04,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:06:04,264 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:06:04,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:04,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:06:04,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:06:04,265 INFO L87 Difference]: Start difference. First operand 49 states and 58 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:04,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:04,323 INFO L93 Difference]: Finished difference Result 94 states and 112 transitions. [2024-09-12 18:06:04,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:06:04,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 11 [2024-09-12 18:06:04,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:04,325 INFO L225 Difference]: With dead ends: 94 [2024-09-12 18:06:04,325 INFO L226 Difference]: Without dead ends: 54 [2024-09-12 18:06:04,326 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:06:04,327 INFO L434 NwaCegarLoop]: 52 mSDtfsCounter, 4 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:04,328 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 83 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:06:04,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-09-12 18:06:04,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 50. [2024-09-12 18:06:04,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 25 states have (on average 1.56) internal successors, (39), 37 states have internal predecessors, (39), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 18:06:04,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 58 transitions. [2024-09-12 18:06:04,353 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 58 transitions. Word has length 11 [2024-09-12 18:06:04,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:04,353 INFO L474 AbstractCegarLoop]: Abstraction has 50 states and 58 transitions. [2024-09-12 18:06:04,353 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:04,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:04,354 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 58 transitions. [2024-09-12 18:06:04,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-09-12 18:06:04,355 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:04,355 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:04,355 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 18:06:04,355 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:06:04,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:04,356 INFO L85 PathProgramCache]: Analyzing trace with hash -180386078, now seen corresponding path program 1 times [2024-09-12 18:06:04,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:04,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266093728] [2024-09-12 18:06:04,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:04,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:04,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:04,485 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:04,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:04,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:04,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:04,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266093728] [2024-09-12 18:06:04,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266093728] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:06:04,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:06:04,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:06:04,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061762867] [2024-09-12 18:06:04,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:06:04,493 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:06:04,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:04,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:06:04,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:06:04,495 INFO L87 Difference]: Start difference. First operand 50 states and 58 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:04,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:04,542 INFO L93 Difference]: Finished difference Result 58 states and 66 transitions. [2024-09-12 18:06:04,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:06:04,542 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2024-09-12 18:06:04,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:04,544 INFO L225 Difference]: With dead ends: 58 [2024-09-12 18:06:04,544 INFO L226 Difference]: Without dead ends: 56 [2024-09-12 18:06:04,545 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:06:04,546 INFO L434 NwaCegarLoop]: 50 mSDtfsCounter, 3 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:04,546 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 128 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:06:04,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-09-12 18:06:04,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 54. [2024-09-12 18:06:04,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 29 states have (on average 1.5517241379310345) internal successors, (45), 41 states have internal predecessors, (45), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 18:06:04,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2024-09-12 18:06:04,557 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 10 [2024-09-12 18:06:04,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:04,558 INFO L474 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2024-09-12 18:06:04,558 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:04,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:04,559 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2024-09-12 18:06:04,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-09-12 18:06:04,559 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:04,560 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:04,560 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-12 18:06:04,560 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:06:04,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:04,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1464202865, now seen corresponding path program 1 times [2024-09-12 18:06:04,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:04,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033776961] [2024-09-12 18:06:04,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:04,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:04,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:04,678 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:04,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:04,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:04,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:04,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033776961] [2024-09-12 18:06:04,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033776961] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:06:04,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:06:04,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-09-12 18:06:04,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777449790] [2024-09-12 18:06:04,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:06:04,687 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:06:04,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:04,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:06:04,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:06:04,689 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:04,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:04,862 INFO L93 Difference]: Finished difference Result 74 states and 87 transitions. [2024-09-12 18:06:04,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:06:04,863 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 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 15 [2024-09-12 18:06:04,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:04,864 INFO L225 Difference]: With dead ends: 74 [2024-09-12 18:06:04,864 INFO L226 Difference]: Without dead ends: 70 [2024-09-12 18:06:04,865 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:06:04,866 INFO L434 NwaCegarLoop]: 31 mSDtfsCounter, 17 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:04,867 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 160 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:06:04,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-09-12 18:06:04,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 60. [2024-09-12 18:06:04,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 33 states have (on average 1.4545454545454546) internal successors, (48), 44 states have internal predecessors, (48), 12 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 18:06:04,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 71 transitions. [2024-09-12 18:06:04,878 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 71 transitions. Word has length 15 [2024-09-12 18:06:04,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:04,879 INFO L474 AbstractCegarLoop]: Abstraction has 60 states and 71 transitions. [2024-09-12 18:06:04,879 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:06:04,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:04,880 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 71 transitions. [2024-09-12 18:06:04,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-09-12 18:06:04,880 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:04,880 INFO L216 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:04,881 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-12 18:06:04,881 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:06:04,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:04,882 INFO L85 PathProgramCache]: Analyzing trace with hash 549264946, now seen corresponding path program 1 times [2024-09-12 18:06:04,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:04,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995273164] [2024-09-12 18:06:04,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:04,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:04,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:05,026 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:05,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:05,030 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:06:05,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:05,037 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:05,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:05,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995273164] [2024-09-12 18:06:05,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995273164] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:06:05,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:06:05,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-09-12 18:06:05,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294244924] [2024-09-12 18:06:05,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:06:05,039 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:06:05,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:05,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:06:05,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:06:05,040 INFO L87 Difference]: Start difference. First operand 60 states and 71 transitions. Second operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:06:05,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:05,259 INFO L93 Difference]: Finished difference Result 87 states and 110 transitions. [2024-09-12 18:06:05,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:06:05,260 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 20 [2024-09-12 18:06:05,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:05,261 INFO L225 Difference]: With dead ends: 87 [2024-09-12 18:06:05,261 INFO L226 Difference]: Without dead ends: 83 [2024-09-12 18:06:05,262 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:06:05,263 INFO L434 NwaCegarLoop]: 31 mSDtfsCounter, 11 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:05,263 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 192 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:06:05,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-09-12 18:06:05,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 82. [2024-09-12 18:06:05,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 46 states have (on average 1.4130434782608696) internal successors, (65), 57 states have internal predecessors, (65), 20 states have call successors, (20), 5 states have call predecessors, (20), 4 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-09-12 18:06:05,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 104 transitions. [2024-09-12 18:06:05,276 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 104 transitions. Word has length 20 [2024-09-12 18:06:05,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:05,276 INFO L474 AbstractCegarLoop]: Abstraction has 82 states and 104 transitions. [2024-09-12 18:06:05,276 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:06:05,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:05,277 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 104 transitions. [2024-09-12 18:06:05,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-09-12 18:06:05,278 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:05,278 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:05,278 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-09-12 18:06:05,279 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:06:05,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:05,279 INFO L85 PathProgramCache]: Analyzing trace with hash -668544991, now seen corresponding path program 1 times [2024-09-12 18:06:05,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:05,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519168939] [2024-09-12 18:06:05,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:05,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:05,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:05,327 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:05,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:05,332 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:06:05,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:05,343 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:06:05,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:05,355 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:06:05,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:05,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519168939] [2024-09-12 18:06:05,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519168939] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:06:05,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:06:05,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:06:05,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285731374] [2024-09-12 18:06:05,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:06:05,360 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:06:05,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:05,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:06:05,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:06:05,364 INFO L87 Difference]: Start difference. First operand 82 states and 104 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:06:05,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:05,449 INFO L93 Difference]: Finished difference Result 147 states and 181 transitions. [2024-09-12 18:06:05,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:06:05,450 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2024-09-12 18:06:05,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:05,451 INFO L225 Difference]: With dead ends: 147 [2024-09-12 18:06:05,451 INFO L226 Difference]: Without dead ends: 83 [2024-09-12 18:06:05,452 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:06:05,453 INFO L434 NwaCegarLoop]: 47 mSDtfsCounter, 7 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:05,454 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 148 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:06:05,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-09-12 18:06:05,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 72. [2024-09-12 18:06:05,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 40 states have (on average 1.375) internal successors, (55), 52 states have internal predecessors, (55), 16 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2024-09-12 18:06:05,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 86 transitions. [2024-09-12 18:06:05,466 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 86 transitions. Word has length 23 [2024-09-12 18:06:05,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:05,466 INFO L474 AbstractCegarLoop]: Abstraction has 72 states and 86 transitions. [2024-09-12 18:06:05,467 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:06:05,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:05,467 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 86 transitions. [2024-09-12 18:06:05,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-09-12 18:06:05,470 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:05,470 INFO L216 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:05,470 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-09-12 18:06:05,471 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:06:05,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:05,471 INFO L85 PathProgramCache]: Analyzing trace with hash -901471599, now seen corresponding path program 1 times [2024-09-12 18:06:05,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:05,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957929845] [2024-09-12 18:06:05,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:05,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:05,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:05,594 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:05,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:05,597 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:06:05,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:05,601 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:06:05,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:05,605 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:06:05,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:05,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957929845] [2024-09-12 18:06:05,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957929845] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:06:05,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:06:05,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-09-12 18:06:05,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727789307] [2024-09-12 18:06:05,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:06:05,607 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:06:05,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:05,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:06:05,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:06:05,608 INFO L87 Difference]: Start difference. First operand 72 states and 86 transitions. Second operand has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:06:05,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:05,732 INFO L93 Difference]: Finished difference Result 83 states and 98 transitions. [2024-09-12 18:06:05,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:06:05,733 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 27 [2024-09-12 18:06:05,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:05,735 INFO L225 Difference]: With dead ends: 83 [2024-09-12 18:06:05,736 INFO L226 Difference]: Without dead ends: 81 [2024-09-12 18:06:05,737 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:06:05,737 INFO L434 NwaCegarLoop]: 43 mSDtfsCounter, 3 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:05,741 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 229 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:06:05,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-09-12 18:06:05,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 79. [2024-09-12 18:06:05,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 57 states have internal predecessors, (60), 17 states have call successors, (17), 6 states have call predecessors, (17), 5 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 18:06:05,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 93 transitions. [2024-09-12 18:06:05,771 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 93 transitions. Word has length 27 [2024-09-12 18:06:05,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:05,772 INFO L474 AbstractCegarLoop]: Abstraction has 79 states and 93 transitions. [2024-09-12 18:06:05,772 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:06:05,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:05,772 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 93 transitions. [2024-09-12 18:06:05,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-09-12 18:06:05,773 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:05,773 INFO L216 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:05,774 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-12 18:06:05,774 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:06:05,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:05,774 INFO L85 PathProgramCache]: Analyzing trace with hash 2123236848, now seen corresponding path program 1 times [2024-09-12 18:06:05,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:05,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521555950] [2024-09-12 18:06:05,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:05,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:05,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:05,893 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:05,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:05,898 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:06:05,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:05,905 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:06:05,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:05,911 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 18:06:05,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:05,919 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:06:05,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:05,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521555950] [2024-09-12 18:06:05,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521555950] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:06:05,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:06:05,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-09-12 18:06:05,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505159263] [2024-09-12 18:06:05,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:06:05,923 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:06:05,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:05,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:06:05,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:06:05,928 INFO L87 Difference]: Start difference. First operand 79 states and 93 transitions. Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:06:06,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:06,029 INFO L93 Difference]: Finished difference Result 91 states and 102 transitions. [2024-09-12 18:06:06,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:06:06,030 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 32 [2024-09-12 18:06:06,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:06,033 INFO L225 Difference]: With dead ends: 91 [2024-09-12 18:06:06,033 INFO L226 Difference]: Without dead ends: 89 [2024-09-12 18:06:06,034 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:06:06,037 INFO L434 NwaCegarLoop]: 47 mSDtfsCounter, 9 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:06,037 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 231 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:06:06,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-09-12 18:06:06,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 83. [2024-09-12 18:06:06,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 48 states have (on average 1.3125) internal successors, (63), 60 states have internal predecessors, (63), 17 states have call successors, (17), 7 states have call predecessors, (17), 6 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 18:06:06,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 96 transitions. [2024-09-12 18:06:06,050 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 96 transitions. Word has length 32 [2024-09-12 18:06:06,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:06,051 INFO L474 AbstractCegarLoop]: Abstraction has 83 states and 96 transitions. [2024-09-12 18:06:06,051 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:06:06,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:06,051 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 96 transitions. [2024-09-12 18:06:06,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-09-12 18:06:06,052 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:06,052 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:06,052 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-09-12 18:06:06,053 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:06:06,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:06,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1370420519, now seen corresponding path program 1 times [2024-09-12 18:06:06,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:06,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356724100] [2024-09-12 18:06:06,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:06,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:06,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:06,130 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:06,133 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:06:06,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:06,136 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:06:06,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:06,139 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 18:06:06,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:06,147 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:06:06,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:06,151 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:06:06,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:06,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356724100] [2024-09-12 18:06:06,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356724100] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:06:06,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392960870] [2024-09-12 18:06:06,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:06,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:06,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:06:06,154 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:06:06,159 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-12 18:06:06,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:06,208 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:06:06,212 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:06:06,266 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:06:06,266 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:06:06,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [392960870] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:06:06,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:06:06,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-09-12 18:06:06,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28254653] [2024-09-12 18:06:06,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:06:06,267 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:06:06,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:06,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:06:06,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:06:06,268 INFO L87 Difference]: Start difference. First operand 83 states and 96 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:06:06,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:06,322 INFO L93 Difference]: Finished difference Result 112 states and 140 transitions. [2024-09-12 18:06:06,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:06:06,323 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 35 [2024-09-12 18:06:06,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:06,325 INFO L225 Difference]: With dead ends: 112 [2024-09-12 18:06:06,325 INFO L226 Difference]: Without dead ends: 111 [2024-09-12 18:06:06,325 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:06:06,326 INFO L434 NwaCegarLoop]: 38 mSDtfsCounter, 12 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:06,327 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 149 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:06:06,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-09-12 18:06:06,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 96. [2024-09-12 18:06:06,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 56 states have (on average 1.375) internal successors, (77), 67 states have internal predecessors, (77), 22 states have call successors, (22), 7 states have call predecessors, (22), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 18:06:06,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 120 transitions. [2024-09-12 18:06:06,339 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 120 transitions. Word has length 35 [2024-09-12 18:06:06,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:06,340 INFO L474 AbstractCegarLoop]: Abstraction has 96 states and 120 transitions. [2024-09-12 18:06:06,340 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:06:06,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:06,340 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 120 transitions. [2024-09-12 18:06:06,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-09-12 18:06:06,341 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:06,341 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:06,363 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 18:06:06,542 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:06,542 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:06:06,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:06,543 INFO L85 PathProgramCache]: Analyzing trace with hash -466636814, now seen corresponding path program 1 times [2024-09-12 18:06:06,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:06,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64251288] [2024-09-12 18:06:06,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:06,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:06,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:06,618 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:06,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:06,621 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:06:06,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:06,624 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:06:06,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:06,629 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 18:06:06,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:06,633 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:06:06,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:06,637 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:06:06,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:06,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64251288] [2024-09-12 18:06:06,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64251288] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:06:06,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1128422420] [2024-09-12 18:06:06,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:06,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:06,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:06:06,644 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:06:06,649 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-12 18:06:06,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:06,704 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:06:06,706 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:06:06,784 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:06:06,785 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:06:06,904 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:06:06,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1128422420] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:06:06,905 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:06:06,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-09-12 18:06:06,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198350197] [2024-09-12 18:06:06,906 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:06:06,906 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:06:06,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:06,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:06:06,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:06:06,907 INFO L87 Difference]: Start difference. First operand 96 states and 120 transitions. Second operand has 12 states, 11 states have (on average 3.0) internal successors, (33), 12 states have internal predecessors, (33), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:06:07,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:07,051 INFO L93 Difference]: Finished difference Result 153 states and 207 transitions. [2024-09-12 18:06:07,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:06:07,052 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.0) internal successors, (33), 12 states have internal predecessors, (33), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 36 [2024-09-12 18:06:07,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:07,053 INFO L225 Difference]: With dead ends: 153 [2024-09-12 18:06:07,053 INFO L226 Difference]: Without dead ends: 152 [2024-09-12 18:06:07,054 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:06:07,055 INFO L434 NwaCegarLoop]: 38 mSDtfsCounter, 26 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:07,055 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 268 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:06:07,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-09-12 18:06:07,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 122. [2024-09-12 18:06:07,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 74 states have (on average 1.4189189189189189) internal successors, (105), 85 states have internal predecessors, (105), 30 states have call successors, (30), 7 states have call predecessors, (30), 6 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-09-12 18:06:07,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 164 transitions. [2024-09-12 18:06:07,096 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 164 transitions. Word has length 36 [2024-09-12 18:06:07,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:07,098 INFO L474 AbstractCegarLoop]: Abstraction has 122 states and 164 transitions. [2024-09-12 18:06:07,098 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.0) internal successors, (33), 12 states have internal predecessors, (33), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:06:07,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:07,101 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 164 transitions. [2024-09-12 18:06:07,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-09-12 18:06:07,102 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:07,102 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:07,121 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 18:06:07,303 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-09-12 18:06:07,304 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:06:07,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:07,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1580839287, now seen corresponding path program 1 times [2024-09-12 18:06:07,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:07,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869908494] [2024-09-12 18:06:07,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:07,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:07,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:07,368 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:07,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:07,371 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:06:07,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:07,374 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:06:07,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:07,377 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 18:06:07,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:07,380 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:06:07,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:07,384 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:06:07,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:07,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869908494] [2024-09-12 18:06:07,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869908494] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:06:07,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [231812157] [2024-09-12 18:06:07,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:07,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:07,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:06:07,387 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:06:07,389 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-12 18:06:07,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:07,432 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:06:07,433 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:06:07,470 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:06:07,471 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:06:07,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [231812157] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:06:07,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:06:07,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-09-12 18:06:07,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333908833] [2024-09-12 18:06:07,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:06:07,472 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:06:07,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:07,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:06:07,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:06:07,473 INFO L87 Difference]: Start difference. First operand 122 states and 164 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:06:07,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:07,540 INFO L93 Difference]: Finished difference Result 123 states and 164 transitions. [2024-09-12 18:06:07,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:06:07,541 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 37 [2024-09-12 18:06:07,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:07,542 INFO L225 Difference]: With dead ends: 123 [2024-09-12 18:06:07,542 INFO L226 Difference]: Without dead ends: 121 [2024-09-12 18:06:07,543 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:06:07,543 INFO L434 NwaCegarLoop]: 31 mSDtfsCounter, 17 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:07,543 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 112 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:06:07,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-09-12 18:06:07,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 120. [2024-09-12 18:06:07,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 74 states have (on average 1.3108108108108107) internal successors, (97), 83 states have internal predecessors, (97), 30 states have call successors, (30), 7 states have call predecessors, (30), 6 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-09-12 18:06:07,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 156 transitions. [2024-09-12 18:06:07,564 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 156 transitions. Word has length 37 [2024-09-12 18:06:07,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:07,564 INFO L474 AbstractCegarLoop]: Abstraction has 120 states and 156 transitions. [2024-09-12 18:06:07,565 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:06:07,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:07,565 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 156 transitions. [2024-09-12 18:06:07,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-09-12 18:06:07,566 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:07,566 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:07,582 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 18:06:07,770 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-09-12 18:06:07,771 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:06:07,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:07,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1761377580, now seen corresponding path program 1 times [2024-09-12 18:06:07,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:07,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831892028] [2024-09-12 18:06:07,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:07,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:07,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:07,824 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:07,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:07,830 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:06:07,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:07,833 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:06:07,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:07,835 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 18:06:07,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:07,838 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:06:07,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:07,840 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-09-12 18:06:07,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:07,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831892028] [2024-09-12 18:06:07,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831892028] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:06:07,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:06:07,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:06:07,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319936] [2024-09-12 18:06:07,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:06:07,842 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:06:07,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:07,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:06:07,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:06:07,843 INFO L87 Difference]: Start difference. First operand 120 states and 156 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:06:07,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:07,899 INFO L93 Difference]: Finished difference Result 120 states and 156 transitions. [2024-09-12 18:06:07,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:06:07,900 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 38 [2024-09-12 18:06:07,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:07,901 INFO L225 Difference]: With dead ends: 120 [2024-09-12 18:06:07,903 INFO L226 Difference]: Without dead ends: 119 [2024-09-12 18:06:07,903 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:06:07,904 INFO L434 NwaCegarLoop]: 44 mSDtfsCounter, 2 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:07,904 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 113 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:06:07,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-09-12 18:06:07,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2024-09-12 18:06:07,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 74 states have (on average 1.2567567567567568) internal successors, (93), 82 states have internal predecessors, (93), 30 states have call successors, (30), 7 states have call predecessors, (30), 6 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-09-12 18:06:07,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 152 transitions. [2024-09-12 18:06:07,921 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 152 transitions. Word has length 38 [2024-09-12 18:06:07,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:07,922 INFO L474 AbstractCegarLoop]: Abstraction has 119 states and 152 transitions. [2024-09-12 18:06:07,923 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:06:07,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:07,923 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 152 transitions. [2024-09-12 18:06:07,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-09-12 18:06:07,924 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:07,924 INFO L216 NwaCegarLoop]: trace histogram [5, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:07,925 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-09-12 18:06:07,925 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:06:07,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:07,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1856966072, now seen corresponding path program 1 times [2024-09-12 18:06:07,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:07,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454033786] [2024-09-12 18:06:07,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:07,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:07,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:08,064 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:08,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:08,067 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:06:08,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:08,070 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:06:08,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:08,075 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 18:06:08,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:08,080 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:06:08,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:08,085 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:06:08,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:08,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454033786] [2024-09-12 18:06:08,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454033786] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:06:08,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183614466] [2024-09-12 18:06:08,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:08,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:08,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:06:08,089 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:06:08,091 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-12 18:06:08,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:08,133 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:06:08,134 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:06:08,210 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:06:08,211 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:06:08,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [183614466] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:06:08,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:06:08,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 13 [2024-09-12 18:06:08,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301850404] [2024-09-12 18:06:08,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:06:08,212 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:06:08,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:08,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:06:08,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:06:08,213 INFO L87 Difference]: Start difference. First operand 119 states and 152 transitions. Second operand has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:06:08,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:08,343 INFO L93 Difference]: Finished difference Result 127 states and 157 transitions. [2024-09-12 18:06:08,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:06:08,344 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 42 [2024-09-12 18:06:08,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:08,345 INFO L225 Difference]: With dead ends: 127 [2024-09-12 18:06:08,345 INFO L226 Difference]: Without dead ends: 125 [2024-09-12 18:06:08,346 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:06:08,346 INFO L434 NwaCegarLoop]: 36 mSDtfsCounter, 24 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:08,347 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 174 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:06:08,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-09-12 18:06:08,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 123. [2024-09-12 18:06:08,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 77 states have (on average 1.2467532467532467) internal successors, (96), 85 states have internal predecessors, (96), 30 states have call successors, (30), 8 states have call predecessors, (30), 7 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-09-12 18:06:08,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 155 transitions. [2024-09-12 18:06:08,361 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 155 transitions. Word has length 42 [2024-09-12 18:06:08,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:08,361 INFO L474 AbstractCegarLoop]: Abstraction has 123 states and 155 transitions. [2024-09-12 18:06:08,362 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:06:08,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:08,362 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 155 transitions. [2024-09-12 18:06:08,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-09-12 18:06:08,363 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:08,363 INFO L216 NwaCegarLoop]: trace histogram [6, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:08,381 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-12 18:06:08,563 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:08,564 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:06:08,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:08,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1172816153, now seen corresponding path program 2 times [2024-09-12 18:06:08,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:08,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208018850] [2024-09-12 18:06:08,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:08,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:08,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:08,697 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:08,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:08,700 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:06:08,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:08,703 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:06:08,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:08,705 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 18:06:08,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:08,708 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:06:08,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:08,711 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:06:08,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:08,713 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-09-12 18:06:08,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:08,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208018850] [2024-09-12 18:06:08,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208018850] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:06:08,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608674854] [2024-09-12 18:06:08,714 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:06:08,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:08,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:06:08,736 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:06:08,743 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-12 18:06:08,785 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:06:08,785 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:06:08,786 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 18:06:08,788 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:06:09,023 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:06:09,023 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:06:09,175 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-09-12 18:06:09,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1608674854] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 18:06:09,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:06:09,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11, 12] total 21 [2024-09-12 18:06:09,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074762249] [2024-09-12 18:06:09,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:06:09,176 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:06:09,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:09,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:06:09,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2024-09-12 18:06:09,177 INFO L87 Difference]: Start difference. First operand 123 states and 155 transitions. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:06:09,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:09,326 INFO L93 Difference]: Finished difference Result 129 states and 160 transitions. [2024-09-12 18:06:09,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:06:09,326 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 47 [2024-09-12 18:06:09,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:09,327 INFO L225 Difference]: With dead ends: 129 [2024-09-12 18:06:09,328 INFO L226 Difference]: Without dead ends: 125 [2024-09-12 18:06:09,328 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 88 SyntacticMatches, 10 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2024-09-12 18:06:09,329 INFO L434 NwaCegarLoop]: 24 mSDtfsCounter, 16 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:09,329 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 128 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:06:09,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-09-12 18:06:09,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2024-09-12 18:06:09,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 80 states have (on average 1.2125) internal successors, (97), 86 states have internal predecessors, (97), 30 states have call successors, (30), 9 states have call predecessors, (30), 8 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-09-12 18:06:09,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 156 transitions. [2024-09-12 18:06:09,343 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 156 transitions. Word has length 47 [2024-09-12 18:06:09,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:09,344 INFO L474 AbstractCegarLoop]: Abstraction has 125 states and 156 transitions. [2024-09-12 18:06:09,344 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:06:09,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:09,344 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 156 transitions. [2024-09-12 18:06:09,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-09-12 18:06:09,345 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:09,345 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:09,361 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 18:06:09,546 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-09-12 18:06:09,547 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:06:09,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:09,547 INFO L85 PathProgramCache]: Analyzing trace with hash -188092454, now seen corresponding path program 1 times [2024-09-12 18:06:09,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:09,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667460712] [2024-09-12 18:06:09,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:09,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:09,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:09,607 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:09,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:09,609 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:06:09,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:09,612 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:06:09,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:09,614 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 18:06:09,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:09,617 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:06:09,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:09,620 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:06:09,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:09,623 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 18:06:09,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:09,626 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:06:09,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:09,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667460712] [2024-09-12 18:06:09,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667460712] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:06:09,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782772350] [2024-09-12 18:06:09,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:09,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:09,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:06:09,629 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:06:09,630 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-12 18:06:09,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:09,669 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:06:09,671 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:06:09,708 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:06:09,708 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:06:09,790 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:06:09,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [782772350] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:06:09,790 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:06:09,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-09-12 18:06:09,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245990677] [2024-09-12 18:06:09,791 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:06:09,791 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 18:06:09,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:09,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 18:06:09,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:06:09,792 INFO L87 Difference]: Start difference. First operand 125 states and 156 transitions. Second operand has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 14 states have internal predecessors, (41), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-09-12 18:06:09,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:09,924 INFO L93 Difference]: Finished difference Result 202 states and 249 transitions. [2024-09-12 18:06:09,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:06:09,925 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 14 states have internal predecessors, (41), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 50 [2024-09-12 18:06:09,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:09,927 INFO L225 Difference]: With dead ends: 202 [2024-09-12 18:06:09,927 INFO L226 Difference]: Without dead ends: 138 [2024-09-12 18:06:09,927 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:06:09,928 INFO L434 NwaCegarLoop]: 30 mSDtfsCounter, 19 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:09,928 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 152 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:06:09,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-09-12 18:06:09,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 132. [2024-09-12 18:06:09,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 85 states have (on average 1.1294117647058823) internal successors, (96), 89 states have internal predecessors, (96), 34 states have call successors, (34), 9 states have call predecessors, (34), 8 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-09-12 18:06:09,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 163 transitions. [2024-09-12 18:06:09,943 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 163 transitions. Word has length 50 [2024-09-12 18:06:09,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:09,944 INFO L474 AbstractCegarLoop]: Abstraction has 132 states and 163 transitions. [2024-09-12 18:06:09,944 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 14 states have internal predecessors, (41), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-09-12 18:06:09,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:09,945 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 163 transitions. [2024-09-12 18:06:09,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-09-12 18:06:09,945 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:09,945 INFO L216 NwaCegarLoop]: trace histogram [7, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:09,966 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-12 18:06:10,146 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-12 18:06:10,147 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:06:10,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:10,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1670431286, now seen corresponding path program 3 times [2024-09-12 18:06:10,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:10,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602593808] [2024-09-12 18:06:10,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:10,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:10,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:10,285 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:10,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:10,287 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:06:10,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:10,290 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:06:10,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:10,292 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 18:06:10,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:10,295 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:06:10,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:10,297 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:06:10,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:10,300 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 18:06:10,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:10,303 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-09-12 18:06:10,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:10,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602593808] [2024-09-12 18:06:10,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602593808] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:06:10,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2012070551] [2024-09-12 18:06:10,303 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:06:10,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:10,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:06:10,308 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:06:10,316 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-12 18:06:10,359 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 18:06:10,359 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:06:10,361 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 18:06:10,364 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:06:10,550 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 12 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:06:10,551 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:06:10,666 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-09-12 18:06:10,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2012070551] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 18:06:10,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:06:10,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11, 12] total 25 [2024-09-12 18:06:10,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066333061] [2024-09-12 18:06:10,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:06:10,668 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:06:10,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:10,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:06:10,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=512, Unknown=0, NotChecked=0, Total=600 [2024-09-12 18:06:10,669 INFO L87 Difference]: Start difference. First operand 132 states and 163 transitions. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:06:10,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:10,801 INFO L93 Difference]: Finished difference Result 138 states and 168 transitions. [2024-09-12 18:06:10,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:06:10,802 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 54 [2024-09-12 18:06:10,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:10,803 INFO L225 Difference]: With dead ends: 138 [2024-09-12 18:06:10,803 INFO L226 Difference]: Without dead ends: 134 [2024-09-12 18:06:10,804 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=602, Unknown=0, NotChecked=0, Total=702 [2024-09-12 18:06:10,805 INFO L434 NwaCegarLoop]: 24 mSDtfsCounter, 10 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:10,805 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 128 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:06:10,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-09-12 18:06:10,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2024-09-12 18:06:10,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 88 states have (on average 1.1022727272727273) internal successors, (97), 90 states have internal predecessors, (97), 34 states have call successors, (34), 10 states have call predecessors, (34), 9 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-09-12 18:06:10,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 164 transitions. [2024-09-12 18:06:10,848 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 164 transitions. Word has length 54 [2024-09-12 18:06:10,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:10,849 INFO L474 AbstractCegarLoop]: Abstraction has 134 states and 164 transitions. [2024-09-12 18:06:10,849 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:06:10,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:10,850 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 164 transitions. [2024-09-12 18:06:10,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-09-12 18:06:10,850 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:10,851 INFO L216 NwaCegarLoop]: trace histogram [8, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:10,870 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-09-12 18:06:11,054 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-12 18:06:11,055 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:06:11,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:11,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1460700759, now seen corresponding path program 4 times [2024-09-12 18:06:11,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:11,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832592955] [2024-09-12 18:06:11,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:11,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:11,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:11,158 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:11,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:11,161 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:06:11,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:11,164 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:06:11,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:11,167 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 18:06:11,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:11,170 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:06:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:11,173 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:06:11,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:11,175 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 18:06:11,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:11,178 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-09-12 18:06:11,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:11,181 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 14 proven. 11 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:06:11,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:11,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832592955] [2024-09-12 18:06:11,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832592955] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:06:11,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656238895] [2024-09-12 18:06:11,182 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 18:06:11,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:11,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:06:11,188 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:06:11,194 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-12 18:06:11,240 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 18:06:11,241 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:06:11,243 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:06:11,245 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:06:11,300 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-09-12 18:06:11,300 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:06:11,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [656238895] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:06:11,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:06:11,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-09-12 18:06:11,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235194875] [2024-09-12 18:06:11,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:06:11,301 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:06:11,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:11,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:06:11,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:06:11,303 INFO L87 Difference]: Start difference. First operand 134 states and 164 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:06:11,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:11,388 INFO L93 Difference]: Finished difference Result 134 states and 164 transitions. [2024-09-12 18:06:11,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:06:11,389 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 59 [2024-09-12 18:06:11,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:11,390 INFO L225 Difference]: With dead ends: 134 [2024-09-12 18:06:11,391 INFO L226 Difference]: Without dead ends: 132 [2024-09-12 18:06:11,391 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:06:11,391 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 11 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:11,392 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 124 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:06:11,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-09-12 18:06:11,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2024-09-12 18:06:11,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 87 states have (on average 1.0919540229885059) internal successors, (95), 88 states have internal predecessors, (95), 34 states have call successors, (34), 10 states have call predecessors, (34), 9 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-09-12 18:06:11,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 162 transitions. [2024-09-12 18:06:11,408 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 162 transitions. Word has length 59 [2024-09-12 18:06:11,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:11,408 INFO L474 AbstractCegarLoop]: Abstraction has 132 states and 162 transitions. [2024-09-12 18:06:11,408 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:06:11,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:11,409 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 162 transitions. [2024-09-12 18:06:11,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-09-12 18:06:11,410 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:11,410 INFO L216 NwaCegarLoop]: trace histogram [16, 16, 16, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:11,428 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 18:06:11,611 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:11,611 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:06:11,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:11,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1556384210, now seen corresponding path program 1 times [2024-09-12 18:06:11,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:11,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857839271] [2024-09-12 18:06:11,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:11,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:11,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:11,764 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:11,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:11,767 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:06:11,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:11,770 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:06:11,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:11,772 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 18:06:11,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:11,776 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:06:11,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:11,778 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:06:11,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:11,780 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 18:06:11,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:11,782 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-09-12 18:06:11,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:11,787 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-09-12 18:06:11,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:11,790 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 18:06:11,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:11,797 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:06:11,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:11,802 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-12 18:06:11,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:11,805 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-09-12 18:06:11,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:11,808 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:06:11,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:11,810 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:06:11,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:11,813 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-09-12 18:06:11,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:11,814 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 18:06:11,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:11,816 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 8 proven. 36 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-09-12 18:06:11,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:11,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857839271] [2024-09-12 18:06:11,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857839271] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:06:11,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1039868661] [2024-09-12 18:06:11,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:11,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:11,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:06:11,819 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:06:11,821 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-12 18:06:11,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:11,879 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:06:11,881 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:06:11,959 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 200 proven. 36 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-09-12 18:06:11,959 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:06:12,087 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 8 proven. 36 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-09-12 18:06:12,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1039868661] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:06:12,088 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:06:12,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 11 [2024-09-12 18:06:12,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369326459] [2024-09-12 18:06:12,089 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:06:12,089 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:06:12,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:12,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:06:12,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:06:12,090 INFO L87 Difference]: Start difference. First operand 132 states and 162 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 5 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2024-09-12 18:06:12,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:12,169 INFO L93 Difference]: Finished difference Result 218 states and 264 transitions. [2024-09-12 18:06:12,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:06:12,170 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 5 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) Word has length 117 [2024-09-12 18:06:12,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:12,172 INFO L225 Difference]: With dead ends: 218 [2024-09-12 18:06:12,172 INFO L226 Difference]: Without dead ends: 147 [2024-09-12 18:06:12,172 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 260 SyntacticMatches, 7 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:06:12,173 INFO L434 NwaCegarLoop]: 35 mSDtfsCounter, 11 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:12,173 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 158 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:06:12,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-09-12 18:06:12,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 143. [2024-09-12 18:06:12,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 94 states have (on average 1.0957446808510638) internal successors, (103), 95 states have internal predecessors, (103), 38 states have call successors, (38), 10 states have call predecessors, (38), 9 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-09-12 18:06:12,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 178 transitions. [2024-09-12 18:06:12,192 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 178 transitions. Word has length 117 [2024-09-12 18:06:12,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:12,192 INFO L474 AbstractCegarLoop]: Abstraction has 143 states and 178 transitions. [2024-09-12 18:06:12,192 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 5 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2024-09-12 18:06:12,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:12,193 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 178 transitions. [2024-09-12 18:06:12,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-09-12 18:06:12,194 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:12,194 INFO L216 NwaCegarLoop]: trace histogram [16, 16, 16, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:12,215 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-12 18:06:12,394 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-09-12 18:06:12,395 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:06:12,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:12,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1321420487, now seen corresponding path program 2 times [2024-09-12 18:06:12,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:12,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721890157] [2024-09-12 18:06:12,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:12,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:12,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:12,631 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:12,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:12,633 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:06:12,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:12,636 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:06:12,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:12,639 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 18:06:12,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:12,641 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:06:12,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:12,643 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:06:12,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:12,646 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 18:06:12,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:12,648 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-09-12 18:06:12,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:12,651 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-09-12 18:06:12,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:12,653 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 18:06:12,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:12,655 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:06:12,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:12,659 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-12 18:06:12,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:12,661 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-09-12 18:06:12,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:12,665 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-12 18:06:12,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:12,668 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 18:06:12,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:12,670 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 18:06:12,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:12,673 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 18:06:12,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:12,676 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-09-12 18:06:12,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:12,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721890157] [2024-09-12 18:06:12,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721890157] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:06:12,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [122830260] [2024-09-12 18:06:12,676 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:06:12,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:12,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:06:12,679 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:06:12,687 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-12 18:06:12,743 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:06:12,744 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:06:12,745 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 18:06:12,748 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:06:12,818 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-09-12 18:06:12,818 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:06:13,053 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-09-12 18:06:13,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [122830260] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:06:13,054 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:06:13,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2024-09-12 18:06:13,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286009352] [2024-09-12 18:06:13,054 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:06:13,055 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-12 18:06:13,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:13,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-12 18:06:13,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2024-09-12 18:06:13,056 INFO L87 Difference]: Start difference. First operand 143 states and 178 transitions. Second operand has 24 states, 23 states have (on average 3.260869565217391) internal successors, (75), 24 states have internal predecessors, (75), 9 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (33), 9 states have call predecessors, (33), 9 states have call successors, (33) [2024-09-12 18:06:13,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:13,300 INFO L93 Difference]: Finished difference Result 305 states and 422 transitions. [2024-09-12 18:06:13,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-12 18:06:13,300 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.260869565217391) internal successors, (75), 24 states have internal predecessors, (75), 9 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (33), 9 states have call predecessors, (33), 9 states have call successors, (33) Word has length 117 [2024-09-12 18:06:13,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:13,303 INFO L225 Difference]: With dead ends: 305 [2024-09-12 18:06:13,303 INFO L226 Difference]: Without dead ends: 304 [2024-09-12 18:06:13,304 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2024-09-12 18:06:13,304 INFO L434 NwaCegarLoop]: 31 mSDtfsCounter, 106 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:13,305 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 253 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:06:13,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2024-09-12 18:06:13,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 244. [2024-09-12 18:06:13,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 159 states have (on average 1.1320754716981132) internal successors, (180), 160 states have internal predecessors, (180), 74 states have call successors, (74), 10 states have call predecessors, (74), 9 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2024-09-12 18:06:13,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 327 transitions. [2024-09-12 18:06:13,339 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 327 transitions. Word has length 117 [2024-09-12 18:06:13,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:13,339 INFO L474 AbstractCegarLoop]: Abstraction has 244 states and 327 transitions. [2024-09-12 18:06:13,340 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.260869565217391) internal successors, (75), 24 states have internal predecessors, (75), 9 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (33), 9 states have call predecessors, (33), 9 states have call successors, (33) [2024-09-12 18:06:13,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:13,340 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 327 transitions. [2024-09-12 18:06:13,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-09-12 18:06:13,341 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:13,341 INFO L216 NwaCegarLoop]: trace histogram [20, 20, 20, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:13,362 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-09-12 18:06:13,542 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:13,543 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:06:13,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:13,543 INFO L85 PathProgramCache]: Analyzing trace with hash -21768245, now seen corresponding path program 2 times [2024-09-12 18:06:13,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:13,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739776725] [2024-09-12 18:06:13,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:13,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:13,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:13,806 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:13,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:13,808 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:06:13,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:13,811 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:06:13,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:13,813 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 18:06:13,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:13,815 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:06:13,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:13,817 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:06:13,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:13,819 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 18:06:13,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:13,821 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-09-12 18:06:13,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:13,824 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-09-12 18:06:13,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:13,826 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 18:06:13,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:13,829 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:06:13,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:13,832 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-12 18:06:13,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:13,834 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-09-12 18:06:13,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:13,837 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-12 18:06:13,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:13,839 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 18:06:13,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:13,842 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 18:06:13,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:13,846 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 18:06:13,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:13,849 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-09-12 18:06:13,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:13,852 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 18:06:13,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:13,854 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-09-12 18:06:13,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:13,857 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-09-12 18:06:13,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:13,860 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 814 trivial. 0 not checked. [2024-09-12 18:06:13,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:13,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739776725] [2024-09-12 18:06:13,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739776725] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:06:13,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112077658] [2024-09-12 18:06:13,861 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:06:13,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:13,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:06:13,863 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 18:06:13,865 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 18:06:13,929 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:06:13,929 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:06:13,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 18:06:13,934 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:06:14,116 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 70 proven. 10 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-09-12 18:06:14,117 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:06:14,417 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 60 proven. 20 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-09-12 18:06:14,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2112077658] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:06:14,418 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:06:14,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13, 13] total 32 [2024-09-12 18:06:14,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389727990] [2024-09-12 18:06:14,419 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:06:14,419 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-09-12 18:06:14,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:14,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-09-12 18:06:14,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=225, Invalid=831, Unknown=0, NotChecked=0, Total=1056 [2024-09-12 18:06:14,421 INFO L87 Difference]: Start difference. First operand 244 states and 327 transitions. Second operand has 33 states, 32 states have (on average 3.34375) internal successors, (107), 33 states have internal predecessors, (107), 12 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (49), 12 states have call predecessors, (49), 12 states have call successors, (49) [2024-09-12 18:06:14,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:14,833 INFO L93 Difference]: Finished difference Result 244 states and 327 transitions. [2024-09-12 18:06:14,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-12 18:06:14,834 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 3.34375) internal successors, (107), 33 states have internal predecessors, (107), 12 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (49), 12 states have call predecessors, (49), 12 states have call successors, (49) Word has length 144 [2024-09-12 18:06:14,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:14,836 INFO L225 Difference]: With dead ends: 244 [2024-09-12 18:06:14,837 INFO L226 Difference]: Without dead ends: 243 [2024-09-12 18:06:14,838 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 315 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 496 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=394, Invalid=1498, Unknown=0, NotChecked=0, Total=1892 [2024-09-12 18:06:14,838 INFO L434 NwaCegarLoop]: 47 mSDtfsCounter, 0 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:14,838 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 272 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:06:14,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2024-09-12 18:06:14,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 197. [2024-09-12 18:06:14,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 129 states have (on average 1.062015503875969) internal successors, (137), 129 states have internal predecessors, (137), 58 states have call successors, (58), 10 states have call predecessors, (58), 9 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-09-12 18:06:14,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 252 transitions. [2024-09-12 18:06:14,878 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 252 transitions. Word has length 144 [2024-09-12 18:06:14,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:14,879 INFO L474 AbstractCegarLoop]: Abstraction has 197 states and 252 transitions. [2024-09-12 18:06:14,879 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 3.34375) internal successors, (107), 33 states have internal predecessors, (107), 12 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (49), 12 states have call predecessors, (49), 12 states have call successors, (49) [2024-09-12 18:06:14,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:14,880 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 252 transitions. [2024-09-12 18:06:14,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2024-09-12 18:06:14,883 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:06:14,884 INFO L216 NwaCegarLoop]: trace histogram [40, 40, 40, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:14,900 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 18:06:15,087 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:15,088 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-09-12 18:06:15,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:15,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1772602969, now seen corresponding path program 3 times [2024-09-12 18:06:15,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:06:15,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123221041] [2024-09-12 18:06:15,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:06:15,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:06:15,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:15,639 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:06:15,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:15,642 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:06:15,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:15,644 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:06:15,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:15,647 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 18:06:15,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:15,649 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 18:06:15,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:15,651 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:06:15,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:15,653 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 18:06:15,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:15,655 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-09-12 18:06:15,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:15,657 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-09-12 18:06:15,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:15,659 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 18:06:15,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:15,661 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:06:15,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:15,663 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-12 18:06:15,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:15,664 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-09-12 18:06:15,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:15,667 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-12 18:06:15,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:15,669 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 18:06:15,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:15,671 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 18:06:15,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:15,673 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 18:06:15,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:15,675 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 18:06:15,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:15,677 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-09-12 18:06:15,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:15,679 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-09-12 18:06:15,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:15,681 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-09-12 18:06:15,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:15,683 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 18:06:15,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:15,685 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-09-12 18:06:15,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:15,687 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-09-12 18:06:15,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:15,689 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-09-12 18:06:15,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:15,691 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-12 18:06:15,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:15,693 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-09-12 18:06:15,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:15,696 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-09-12 18:06:15,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:15,698 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-09-12 18:06:15,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:15,700 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-09-12 18:06:15,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:15,702 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-09-12 18:06:15,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:15,704 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-09-12 18:06:15,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:15,706 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2024-09-12 18:06:15,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:15,708 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-09-12 18:06:15,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:15,710 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-09-12 18:06:15,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:15,712 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2024-09-12 18:06:15,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:15,714 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-09-12 18:06:15,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:15,716 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2024-09-12 18:06:15,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:15,718 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-09-12 18:06:15,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:15,720 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2024-09-12 18:06:15,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:15,722 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2024-09-12 18:06:15,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:06:15,726 INFO L134 CoverageAnalysis]: Checked inductivity of 3645 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2024-09-12 18:06:15,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:06:15,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123221041] [2024-09-12 18:06:15,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123221041] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:06:15,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [681783032] [2024-09-12 18:06:15,727 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:06:15,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:06:15,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:06:15,730 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 18:06:15,734 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 18:06:15,793 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-09-12 18:06:15,793 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:06:15,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 18:06:15,799 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:06:15,895 INFO L134 CoverageAnalysis]: Checked inductivity of 3645 backedges. 232 proven. 5 refuted. 0 times theorem prover too weak. 3408 trivial. 0 not checked. [2024-09-12 18:06:15,895 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:06:16,199 INFO L134 CoverageAnalysis]: Checked inductivity of 3645 backedges. 232 proven. 5 refuted. 0 times theorem prover too weak. 3408 trivial. 0 not checked. [2024-09-12 18:06:16,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [681783032] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:06:16,200 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:06:16,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 8, 8] total 34 [2024-09-12 18:06:16,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802282308] [2024-09-12 18:06:16,200 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:06:16,201 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-09-12 18:06:16,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:16,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-09-12 18:06:16,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=208, Invalid=982, Unknown=0, NotChecked=0, Total=1190 [2024-09-12 18:06:16,203 INFO L87 Difference]: Start difference. First operand 197 states and 252 transitions. Second operand has 35 states, 34 states have (on average 3.264705882352941) internal successors, (111), 34 states have internal predecessors, (111), 14 states have call successors, (53), 1 states have call predecessors, (53), 2 states have return successors, (52), 14 states have call predecessors, (52), 14 states have call successors, (52) [2024-09-12 18:06:17,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:06:17,542 INFO L93 Difference]: Finished difference Result 227 states and 294 transitions. [2024-09-12 18:06:17,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-09-12 18:06:17,542 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 3.264705882352941) internal successors, (111), 34 states have internal predecessors, (111), 14 states have call successors, (53), 1 states have call predecessors, (53), 2 states have return successors, (52), 14 states have call predecessors, (52), 14 states have call successors, (52) Word has length 279 [2024-09-12 18:06:17,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:06:17,546 INFO L225 Difference]: With dead ends: 227 [2024-09-12 18:06:17,546 INFO L226 Difference]: Without dead ends: 0 [2024-09-12 18:06:17,548 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 695 GetRequests, 633 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 750 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=706, Invalid=3326, Unknown=0, NotChecked=0, Total=4032 [2024-09-12 18:06:17,551 INFO L434 NwaCegarLoop]: 14 mSDtfsCounter, 103 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:06:17,552 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 165 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:06:17,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-12 18:06:17,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-12 18:06:17,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-12 18:06:17,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-12 18:06:17,556 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 279 [2024-09-12 18:06:17,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:06:17,556 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-12 18:06:17,557 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 3.264705882352941) internal successors, (111), 34 states have internal predecessors, (111), 14 states have call successors, (53), 1 states have call predecessors, (53), 2 states have return successors, (52), 14 states have call predecessors, (52), 14 states have call successors, (52) [2024-09-12 18:06:17,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:06:17,557 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-12 18:06:17,557 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-12 18:06:17,560 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2024-09-12 18:06:17,565 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-09-12 18:06:17,565 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-09-12 18:06:17,565 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-09-12 18:06:17,565 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2024-09-12 18:06:17,565 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-09-12 18:06:17,566 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2024-09-12 18:06:17,566 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2024-09-12 18:06:17,566 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2024-09-12 18:06:17,566 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-09-12 18:06:17,567 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-09-12 18:06:17,568 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-09-12 18:06:17,568 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 13 remaining) [2024-09-12 18:06:17,594 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 18:06:17,769 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-09-12 18:06:17,779 INFO L408 BasicCegarLoop]: Path program histogram: [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:06:17,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-09-12 18:06:20,049 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-12 18:06:20,096 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.09 06:06:20 BoogieIcfgContainer [2024-09-12 18:06:20,097 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-12 18:06:20,097 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-09-12 18:06:20,099 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-09-12 18:06:20,099 INFO L274 PluginConnector]: Witness Printer initialized [2024-09-12 18:06:20,100 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:06:03" (3/4) ... [2024-09-12 18:06:20,101 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-09-12 18:06:20,114 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2024-09-12 18:06:20,114 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2024-09-12 18:06:20,114 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-09-12 18:06:20,125 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-09-12 18:06:20,126 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-09-12 18:06:20,126 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-09-12 18:06:20,130 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-09-12 18:06:20,324 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.graphml [2024-09-12 18:06:20,331 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml [2024-09-12 18:06:20,331 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-09-12 18:06:20,331 INFO L158 Benchmark]: Toolchain (without parser) took 17437.32ms. Allocated memory was 100.7MB in the beginning and 371.2MB in the end (delta: 270.5MB). Free memory was 67.9MB in the beginning and 272.9MB in the end (delta: -205.0MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. [2024-09-12 18:06:20,332 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 100.7MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 18:06:20,332 INFO L158 Benchmark]: CACSL2BoogieTranslator took 275.58ms. Allocated memory is still 100.7MB. Free memory was 67.7MB in the beginning and 56.3MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-12 18:06:20,332 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.26ms. Allocated memory is still 100.7MB. Free memory was 56.3MB in the beginning and 55.4MB in the end (delta: 832.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 18:06:20,332 INFO L158 Benchmark]: Boogie Preprocessor took 43.98ms. Allocated memory is still 100.7MB. Free memory was 55.4MB in the beginning and 53.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-12 18:06:20,332 INFO L158 Benchmark]: RCFGBuilder took 360.81ms. Allocated memory is still 100.7MB. Free memory was 53.7MB in the beginning and 71.2MB in the end (delta: -17.5MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2024-09-12 18:06:20,332 INFO L158 Benchmark]: TraceAbstraction took 16495.79ms. Allocated memory was 100.7MB in the beginning and 371.2MB in the end (delta: 270.5MB). Free memory was 70.4MB in the beginning and 278.1MB in the end (delta: -207.8MB). Peak memory consumption was 216.7MB. Max. memory is 16.1GB. [2024-09-12 18:06:20,333 INFO L158 Benchmark]: Witness Printer took 233.44ms. Allocated memory is still 371.2MB. Free memory was 278.1MB in the beginning and 272.9MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-12 18:06:20,334 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 100.7MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 275.58ms. Allocated memory is still 100.7MB. Free memory was 67.7MB in the beginning and 56.3MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.26ms. Allocated memory is still 100.7MB. Free memory was 56.3MB in the beginning and 55.4MB in the end (delta: 832.7kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 43.98ms. Allocated memory is still 100.7MB. Free memory was 55.4MB in the beginning and 53.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 360.81ms. Allocated memory is still 100.7MB. Free memory was 53.7MB in the beginning and 71.2MB in the end (delta: -17.5MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. * TraceAbstraction took 16495.79ms. Allocated memory was 100.7MB in the beginning and 371.2MB in the end (delta: 270.5MB). Free memory was 70.4MB in the beginning and 278.1MB in the end (delta: -207.8MB). Peak memory consumption was 216.7MB. Max. memory is 16.1GB. * Witness Printer took 233.44ms. Allocated memory is still 371.2MB. Free memory was 278.1MB in the beginning and 272.9MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 49 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 14.1s, OverallIterations: 21, TraceHistogramMax: 40, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 515 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 420 mSDsluCounter, 3492 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2730 mSDsCounter, 204 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3016 IncrementalHoareTripleChecker+Invalid, 3220 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 204 mSolverCounterUnsat, 762 mSDtfsCounter, 3016 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2405 GetRequests, 2110 SyntacticMatches, 17 SemanticMatches, 278 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2068 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=244occurred in iteration=19, InterpolantAutomatonStates: 201, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 21 MinimizatonAttempts, 212 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.8s InterpolantComputationTime, 2218 NumberOfCodeBlocks, 1973 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 3021 ConstructedInterpolants, 0 QuantifiedInterpolants, 5562 SizeOfPredicates, 7 NumberOfNonLiveVariables, 1686 ConjunctsInSsa, 106 ConjunctsInUnsatCore, 41 InterpolantComputations, 15 PerfectInterpolantSequences, 16851/17869 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 13 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: (((((((((j == 1) && (2 <= i)) && (i <= 4)) || (((i == 3) && (2 <= j)) && (j <= 3))) || ((j == 1) && (i == 1))) || (((i <= ((long long) j + 3)) && (j <= 4)) && (4 <= i))) || (((j == 0) && (1 <= i)) && (i <= 3))) || ((j == 2) && (i == 2))) || ((j == 0) && (i == 0))) - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: ((0 < i) || (i == 0)) - ProcedureContractResult [Line: 13]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: (\old(cond) != 0) Ensures: (\old(cond) != 0) RESULT: Ultimate proved your program to be correct! [2024-09-12 18:06:20,389 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE