./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive/recHanoi02-2.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive/recHanoi02-2.c -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d379c583eb269678169316efe01a55df7fa26acebe2991472725b0afcb2879ab --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 19:49:48,693 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 19:49:48,772 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 19:49:48,778 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 19:49:48,779 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 19:49:48,804 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 19:49:48,806 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 19:49:48,807 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 19:49:48,807 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 19:49:48,808 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 19:49:48,809 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 19:49:48,810 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 19:49:48,812 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 19:49:48,812 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 19:49:48,813 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 19:49:48,813 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 19:49:48,813 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 19:49:48,814 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 19:49:48,814 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 19:49:48,817 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 19:49:48,817 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 19:49:48,817 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 19:49:48,818 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 19:49:48,818 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 19:49:48,818 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 19:49:48,818 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 19:49:48,819 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 19:49:48,819 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 19:49:48,819 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 19:49:48,819 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 19:49:48,820 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 19:49:48,820 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 19:49:48,820 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:49:48,820 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 19:49:48,821 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 19:49:48,821 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 19:49:48,825 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 19:49:48,825 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 19:49:48,826 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 19:49:48,826 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 19:49:48,826 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 19:49:48,827 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 19:49:48,827 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d379c583eb269678169316efe01a55df7fa26acebe2991472725b0afcb2879ab Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 19:49:49,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 19:49:49,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 19:49:49,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 19:49:49,215 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 19:49:49,216 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 19:49:49,217 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/recursive/recHanoi02-2.c [2024-09-12 19:49:50,702 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 19:49:50,900 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 19:49:50,901 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive/recHanoi02-2.c [2024-09-12 19:49:50,912 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/5d8249518/5384802f99ef407ea05ae8c8cd5c7297/FLAG955d37cef [2024-09-12 19:49:50,932 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/5d8249518/5384802f99ef407ea05ae8c8cd5c7297 [2024-09-12 19:49:50,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 19:49:50,939 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 19:49:50,940 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 19:49:50,942 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 19:49:50,947 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 19:49:50,948 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:49:50" (1/1) ... [2024-09-12 19:49:50,949 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30dc8842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:49:50, skipping insertion in model container [2024-09-12 19:49:50,949 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:49:50" (1/1) ... [2024-09-12 19:49:50,970 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 19:49:51,164 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/recursive/recHanoi02-2.c[839,852] [2024-09-12 19:49:51,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:49:51,181 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 19:49:51,196 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/recursive/recHanoi02-2.c[839,852] [2024-09-12 19:49:51,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:49:51,214 INFO L204 MainTranslator]: Completed translation [2024-09-12 19:49:51,214 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:49:51 WrapperNode [2024-09-12 19:49:51,214 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 19:49:51,216 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 19:49:51,216 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 19:49:51,217 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 19:49:51,224 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:49:51" (1/1) ... [2024-09-12 19:49:51,234 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:49:51" (1/1) ... [2024-09-12 19:49:51,243 INFO L138 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 19:49:51,244 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 19:49:51,245 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 19:49:51,245 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 19:49:51,245 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 19:49:51,255 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:49:51" (1/1) ... [2024-09-12 19:49:51,256 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:49:51" (1/1) ... [2024-09-12 19:49:51,257 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:49:51" (1/1) ... [2024-09-12 19:49:51,273 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 19:49:51,274 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:49:51" (1/1) ... [2024-09-12 19:49:51,274 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:49:51" (1/1) ... [2024-09-12 19:49:51,277 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:49:51" (1/1) ... [2024-09-12 19:49:51,278 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:49:51" (1/1) ... [2024-09-12 19:49:51,279 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:49:51" (1/1) ... [2024-09-12 19:49:51,280 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:49:51" (1/1) ... [2024-09-12 19:49:51,285 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 19:49:51,285 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 19:49:51,286 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 19:49:51,286 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 19:49:51,286 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:49:51" (1/1) ... [2024-09-12 19:49:51,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:49:51,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:49:51,324 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 19:49:51,327 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 19:49:51,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 19:49:51,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 19:49:51,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 19:49:51,374 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2024-09-12 19:49:51,374 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2024-09-12 19:49:51,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 19:49:51,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 19:49:51,376 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 19:49:51,376 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 19:49:51,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 19:49:51,445 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 19:49:51,447 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 19:49:51,609 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-09-12 19:49:51,609 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 19:49:51,639 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 19:49:51,639 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-12 19:49:51,639 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:49:51 BoogieIcfgContainer [2024-09-12 19:49:51,640 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 19:49:51,649 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 19:49:51,649 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 19:49:51,653 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 19:49:51,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 07:49:50" (1/3) ... [2024-09-12 19:49:51,654 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a473583 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:49:51, skipping insertion in model container [2024-09-12 19:49:51,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:49:51" (2/3) ... [2024-09-12 19:49:51,654 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a473583 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:49:51, skipping insertion in model container [2024-09-12 19:49:51,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:49:51" (3/3) ... [2024-09-12 19:49:51,655 INFO L112 eAbstractionObserver]: Analyzing ICFG recHanoi02-2.c [2024-09-12 19:49:51,673 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 19:49:51,674 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-09-12 19:49:51,741 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 19:49:51,748 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;@3f80f75f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 19:49:51,749 INFO L337 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-09-12 19:49:51,753 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 25 states have internal predecessors, (28), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:49:51,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-09-12 19:49:51,760 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:49:51,761 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:49:51,761 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-09-12 19:49:51,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:49:51,769 INFO L85 PathProgramCache]: Analyzing trace with hash 746687777, now seen corresponding path program 1 times [2024-09-12 19:49:51,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:49:51,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723114917] [2024-09-12 19:49:51,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:49:51,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:49:51,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:49:52,039 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:49:52,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:49:52,061 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 19:49:52,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:49:52,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723114917] [2024-09-12 19:49:52,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723114917] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:49:52,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:49:52,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:49:52,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689252820] [2024-09-12 19:49:52,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:49:52,069 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:49:52,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:49:52,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:49:52,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:49:52,095 INFO L87 Difference]: Start difference. First operand has 33 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 25 states have internal predecessors, (28), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 19:49:52,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:49:52,232 INFO L93 Difference]: Finished difference Result 59 states and 62 transitions. [2024-09-12 19:49:52,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:49:52,235 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 10 [2024-09-12 19:49:52,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:49:52,242 INFO L225 Difference]: With dead ends: 59 [2024-09-12 19:49:52,243 INFO L226 Difference]: Without dead ends: 48 [2024-09-12 19:49:52,246 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:49:52,251 INFO L434 NwaCegarLoop]: 30 mSDtfsCounter, 33 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:49:52,253 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 110 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:49:52,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-09-12 19:49:52,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 41. [2024-09-12 19:49:52,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 26 states have (on average 1.5) internal successors, (39), 32 states have internal predecessors, (39), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:49:52,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 48 transitions. [2024-09-12 19:49:52,298 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 48 transitions. Word has length 10 [2024-09-12 19:49:52,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:49:52,298 INFO L474 AbstractCegarLoop]: Abstraction has 41 states and 48 transitions. [2024-09-12 19:49:52,298 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 19:49:52,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:49:52,299 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 48 transitions. [2024-09-12 19:49:52,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-09-12 19:49:52,300 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:49:52,300 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:49:52,300 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 19:49:52,301 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-09-12 19:49:52,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:49:52,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1672484647, now seen corresponding path program 1 times [2024-09-12 19:49:52,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:49:52,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644806858] [2024-09-12 19:49:52,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:49:52,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:49:52,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:49:52,366 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:49:52,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:49:52,374 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 19:49:52,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:49:52,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644806858] [2024-09-12 19:49:52,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644806858] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:49:52,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:49:52,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:49:52,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661237209] [2024-09-12 19:49:52,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:49:52,378 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:49:52,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:49:52,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:49:52,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:49:52,380 INFO L87 Difference]: Start difference. First operand 41 states and 48 transitions. Second operand has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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 19:49:52,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:49:52,477 INFO L93 Difference]: Finished difference Result 45 states and 53 transitions. [2024-09-12 19:49:52,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:49:52,478 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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 19:49:52,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:49:52,479 INFO L225 Difference]: With dead ends: 45 [2024-09-12 19:49:52,479 INFO L226 Difference]: Without dead ends: 44 [2024-09-12 19:49:52,480 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:49:52,481 INFO L434 NwaCegarLoop]: 21 mSDtfsCounter, 30 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:49:52,482 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 54 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:49:52,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-09-12 19:49:52,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2024-09-12 19:49:52,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 31 states have internal predecessors, (37), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:49:52,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2024-09-12 19:49:52,494 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 11 [2024-09-12 19:49:52,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:49:52,495 INFO L474 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2024-09-12 19:49:52,495 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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 19:49:52,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:49:52,496 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2024-09-12 19:49:52,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-09-12 19:49:52,496 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:49:52,497 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:49:52,497 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 19:49:52,497 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-09-12 19:49:52,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:49:52,498 INFO L85 PathProgramCache]: Analyzing trace with hash -940942526, now seen corresponding path program 1 times [2024-09-12 19:49:52,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:49:52,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678220421] [2024-09-12 19:49:52,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:49:52,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:49:52,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:49:52,582 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:49:52,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:49:52,588 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:49:52,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:49:52,610 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 19:49:52,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:49:52,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678220421] [2024-09-12 19:49:52,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678220421] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:49:52,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:49:52,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:49:52,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239847133] [2024-09-12 19:49:52,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:49:52,612 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:49:52,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:49:52,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:49:52,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:49:52,613 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:49:52,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:49:52,649 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2024-09-12 19:49:52,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:49:52,652 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2024-09-12 19:49:52,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:49:52,653 INFO L225 Difference]: With dead ends: 48 [2024-09-12 19:49:52,653 INFO L226 Difference]: Without dead ends: 42 [2024-09-12 19:49:52,654 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:49:52,655 INFO L434 NwaCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:49:52,655 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 105 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:49:52,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-09-12 19:49:52,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2024-09-12 19:49:52,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 31 states have internal predecessors, (36), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:49:52,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 45 transitions. [2024-09-12 19:49:52,675 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 45 transitions. Word has length 14 [2024-09-12 19:49:52,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:49:52,678 INFO L474 AbstractCegarLoop]: Abstraction has 40 states and 45 transitions. [2024-09-12 19:49:52,678 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:49:52,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:49:52,679 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2024-09-12 19:49:52,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-09-12 19:49:52,680 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:49:52,680 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:49:52,680 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-12 19:49:52,680 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-09-12 19:49:52,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:49:52,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1376942659, now seen corresponding path program 1 times [2024-09-12 19:49:52,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:49:52,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289585002] [2024-09-12 19:49:52,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:49:52,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:49:52,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:49:52,799 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:49:52,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:49:52,809 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:49:52,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:49:52,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289585002] [2024-09-12 19:49:52,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289585002] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:49:52,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730075442] [2024-09-12 19:49:52,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:49:52,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:49:52,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:49:52,815 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 19:49:52,817 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 19:49:52,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:49:52,866 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 19:49:52,877 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:49:52,938 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:49:52,939 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:49:53,026 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:49:53,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [730075442] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:49:53,027 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:49:53,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-09-12 19:49:53,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364118399] [2024-09-12 19:49:53,027 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:49:53,028 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 19:49:53,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:49:53,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 19:49:53,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:49:53,030 INFO L87 Difference]: Start difference. First operand 40 states and 45 transitions. Second operand has 12 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 5 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:49:53,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:49:53,220 INFO L93 Difference]: Finished difference Result 101 states and 108 transitions. [2024-09-12 19:49:53,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 19:49:53,221 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 5 states have call successors, (6), 5 states have call predecessors, (6), 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 19:49:53,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:49:53,223 INFO L225 Difference]: With dead ends: 101 [2024-09-12 19:49:53,223 INFO L226 Difference]: Without dead ends: 100 [2024-09-12 19:49:53,224 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-09-12 19:49:53,225 INFO L434 NwaCegarLoop]: 22 mSDtfsCounter, 188 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:49:53,225 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 145 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:49:53,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-09-12 19:49:53,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 76. [2024-09-12 19:49:53,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 56 states have (on average 1.4464285714285714) internal successors, (81), 61 states have internal predecessors, (81), 8 states have call successors, (8), 7 states have call predecessors, (8), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:49:53,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 96 transitions. [2024-09-12 19:49:53,254 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 96 transitions. Word has length 15 [2024-09-12 19:49:53,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:49:53,254 INFO L474 AbstractCegarLoop]: Abstraction has 76 states and 96 transitions. [2024-09-12 19:49:53,254 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 5 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:49:53,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:49:53,255 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 96 transitions. [2024-09-12 19:49:53,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-09-12 19:49:53,255 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:49:53,256 INFO L216 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:49:53,274 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 19:49:53,456 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:49:53,458 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-09-12 19:49:53,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:49:53,460 INFO L85 PathProgramCache]: Analyzing trace with hash -734356488, now seen corresponding path program 1 times [2024-09-12 19:49:53,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:49:53,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360164731] [2024-09-12 19:49:53,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:49:53,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:49:53,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:49:53,524 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:49:53,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:49:53,529 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:49:53,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:49:53,564 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-12 19:49:53,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:49:53,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360164731] [2024-09-12 19:49:53,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360164731] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:49:53,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:49:53,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:49:53,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076586313] [2024-09-12 19:49:53,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:49:53,567 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:49:53,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:49:53,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:49:53,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:49:53,568 INFO L87 Difference]: Start difference. First operand 76 states and 96 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:49:53,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:49:53,617 INFO L93 Difference]: Finished difference Result 113 states and 150 transitions. [2024-09-12 19:49:53,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:49:53,618 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2024-09-12 19:49:53,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:49:53,620 INFO L225 Difference]: With dead ends: 113 [2024-09-12 19:49:53,620 INFO L226 Difference]: Without dead ends: 109 [2024-09-12 19:49:53,621 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 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 19:49:53,622 INFO L434 NwaCegarLoop]: 23 mSDtfsCounter, 3 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:49:53,622 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 64 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:49:53,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-09-12 19:49:53,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-09-12 19:49:53,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 85 states have (on average 1.2941176470588236) internal successors, (110), 89 states have internal predecessors, (110), 8 states have call successors, (8), 7 states have call predecessors, (8), 10 states have return successors, (12), 12 states have call predecessors, (12), 7 states have call successors, (12) [2024-09-12 19:49:53,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 130 transitions. [2024-09-12 19:49:53,674 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 130 transitions. Word has length 18 [2024-09-12 19:49:53,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:49:53,674 INFO L474 AbstractCegarLoop]: Abstraction has 109 states and 130 transitions. [2024-09-12 19:49:53,674 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:49:53,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:49:53,675 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 130 transitions. [2024-09-12 19:49:53,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-09-12 19:49:53,675 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:49:53,676 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 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 19:49:53,676 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-09-12 19:49:53,676 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-09-12 19:49:53,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:49:53,676 INFO L85 PathProgramCache]: Analyzing trace with hash -106873938, now seen corresponding path program 1 times [2024-09-12 19:49:53,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:49:53,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673123603] [2024-09-12 19:49:53,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:49:53,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:49:53,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:49:53,751 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:49:53,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:49:53,756 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-12 19:49:53,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:49:53,807 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:49:53,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:49:53,834 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-12 19:49:53,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:49:53,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673123603] [2024-09-12 19:49:53,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673123603] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:49:53,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1080770319] [2024-09-12 19:49:53,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:49:53,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:49:53,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:49:53,839 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 19:49:53,847 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 19:49:53,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:49:53,900 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 19:49:53,901 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:49:53,948 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-12 19:49:53,950 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:49:53,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1080770319] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:49:53,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:49:53,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 9 [2024-09-12 19:49:53,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202399958] [2024-09-12 19:49:53,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:49:53,951 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 19:49:53,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:49:53,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 19:49:53,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:49:53,952 INFO L87 Difference]: Start difference. First operand 109 states and 130 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:49:54,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:49:54,010 INFO L93 Difference]: Finished difference Result 109 states and 130 transitions. [2024-09-12 19:49:54,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:49:54,011 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 26 [2024-09-12 19:49:54,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:49:54,012 INFO L225 Difference]: With dead ends: 109 [2024-09-12 19:49:54,012 INFO L226 Difference]: Without dead ends: 94 [2024-09-12 19:49:54,012 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:49:54,013 INFO L434 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:49:54,013 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 85 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:49:54,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-09-12 19:49:54,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-09-12 19:49:54,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 75 states have (on average 1.1733333333333333) internal successors, (88), 76 states have internal predecessors, (88), 8 states have call successors, (8), 7 states have call predecessors, (8), 8 states have return successors, (10), 10 states have call predecessors, (10), 6 states have call successors, (10) [2024-09-12 19:49:54,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 106 transitions. [2024-09-12 19:49:54,048 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 106 transitions. Word has length 26 [2024-09-12 19:49:54,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:49:54,049 INFO L474 AbstractCegarLoop]: Abstraction has 94 states and 106 transitions. [2024-09-12 19:49:54,049 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:49:54,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:49:54,049 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 106 transitions. [2024-09-12 19:49:54,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-09-12 19:49:54,050 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:49:54,050 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:49:54,068 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 19:49:54,251 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-12 19:49:54,252 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-09-12 19:49:54,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:49:54,252 INFO L85 PathProgramCache]: Analyzing trace with hash -961165407, now seen corresponding path program 2 times [2024-09-12 19:49:54,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:49:54,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190843073] [2024-09-12 19:49:54,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:49:54,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:49:54,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:49:54,477 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:49:54,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:49:54,480 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:49:54,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:49:54,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190843073] [2024-09-12 19:49:54,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190843073] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:49:54,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853843270] [2024-09-12 19:49:54,481 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:49:54,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:49:54,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:49:54,483 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 19:49:54,484 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 19:49:54,527 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:49:54,528 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:49:54,529 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 19:49:54,531 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:49:54,608 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:49:54,610 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:49:54,827 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:49:54,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [853843270] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:49:54,829 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:49:54,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2024-09-12 19:49:54,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655386275] [2024-09-12 19:49:54,830 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:49:54,830 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-12 19:49:54,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:49:54,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-12 19:49:54,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2024-09-12 19:49:54,832 INFO L87 Difference]: Start difference. First operand 94 states and 106 transitions. Second operand has 24 states, 21 states have (on average 2.0) internal successors, (42), 14 states have internal predecessors, (42), 11 states have call successors, (12), 11 states have call predecessors, (12), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:49:55,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:49:55,237 INFO L93 Difference]: Finished difference Result 229 states and 244 transitions. [2024-09-12 19:49:55,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-09-12 19:49:55,237 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 2.0) internal successors, (42), 14 states have internal predecessors, (42), 11 states have call successors, (12), 11 states have call predecessors, (12), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2024-09-12 19:49:55,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:49:55,240 INFO L225 Difference]: With dead ends: 229 [2024-09-12 19:49:55,241 INFO L226 Difference]: Without dead ends: 228 [2024-09-12 19:49:55,242 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=311, Invalid=811, Unknown=0, NotChecked=0, Total=1122 [2024-09-12 19:49:55,243 INFO L434 NwaCegarLoop]: 21 mSDtfsCounter, 443 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:49:55,244 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 244 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:49:55,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-09-12 19:49:55,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 208. [2024-09-12 19:49:55,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 171 states have (on average 1.1812865497076024) internal successors, (202), 172 states have internal predecessors, (202), 14 states have call successors, (14), 13 states have call predecessors, (14), 20 states have return successors, (22), 22 states have call predecessors, (22), 12 states have call successors, (22) [2024-09-12 19:49:55,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 238 transitions. [2024-09-12 19:49:55,305 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 238 transitions. Word has length 30 [2024-09-12 19:49:55,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:49:55,306 INFO L474 AbstractCegarLoop]: Abstraction has 208 states and 238 transitions. [2024-09-12 19:49:55,306 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 2.0) internal successors, (42), 14 states have internal predecessors, (42), 11 states have call successors, (12), 11 states have call predecessors, (12), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:49:55,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:49:55,307 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 238 transitions. [2024-09-12 19:49:55,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-09-12 19:49:55,310 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:49:55,311 INFO L216 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:49:55,328 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 19:49:55,511 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-09-12 19:49:55,512 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-09-12 19:49:55,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:49:55,513 INFO L85 PathProgramCache]: Analyzing trace with hash -129720158, now seen corresponding path program 1 times [2024-09-12 19:49:55,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:49:55,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613234349] [2024-09-12 19:49:55,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:49:55,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:49:55,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:49:55,553 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:49:55,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:49:55,556 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:49:55,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:49:55,605 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:49:55,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:49:55,625 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-09-12 19:49:55,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:49:55,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613234349] [2024-09-12 19:49:55,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613234349] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:49:55,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900763263] [2024-09-12 19:49:55,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:49:55,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:49:55,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:49:55,628 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 19:49:55,629 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 19:49:55,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:49:55,668 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:49:55,669 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:49:55,724 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-09-12 19:49:55,724 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:49:55,833 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-09-12 19:49:55,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1900763263] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:49:55,834 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:49:55,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-09-12 19:49:55,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073419538] [2024-09-12 19:49:55,834 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:49:55,834 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 19:49:55,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:49:55,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 19:49:55,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:49:55,835 INFO L87 Difference]: Start difference. First operand 208 states and 238 transitions. Second operand has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (4), 1 states have call predecessors, (4), 6 states have return successors, (6), 6 states have call predecessors, (6), 1 states have call successors, (6) [2024-09-12 19:49:55,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:49:55,967 INFO L93 Difference]: Finished difference Result 412 states and 497 transitions. [2024-09-12 19:49:55,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 19:49:55,968 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (4), 1 states have call predecessors, (4), 6 states have return successors, (6), 6 states have call predecessors, (6), 1 states have call successors, (6) Word has length 31 [2024-09-12 19:49:55,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:49:55,971 INFO L225 Difference]: With dead ends: 412 [2024-09-12 19:49:55,972 INFO L226 Difference]: Without dead ends: 347 [2024-09-12 19:49:55,972 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:49:55,973 INFO L434 NwaCegarLoop]: 16 mSDtfsCounter, 4 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:49:55,973 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 120 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:49:55,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2024-09-12 19:49:56,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2024-09-12 19:49:56,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 290 states have (on average 1.0586206896551724) internal successors, (307), 287 states have internal predecessors, (307), 14 states have call successors, (14), 13 states have call predecessors, (14), 41 states have return successors, (46), 46 states have call predecessors, (46), 12 states have call successors, (46) [2024-09-12 19:49:56,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 367 transitions. [2024-09-12 19:49:56,045 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 367 transitions. Word has length 31 [2024-09-12 19:49:56,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:49:56,046 INFO L474 AbstractCegarLoop]: Abstraction has 347 states and 367 transitions. [2024-09-12 19:49:56,046 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (4), 1 states have call predecessors, (4), 6 states have return successors, (6), 6 states have call predecessors, (6), 1 states have call successors, (6) [2024-09-12 19:49:56,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:49:56,046 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 367 transitions. [2024-09-12 19:49:56,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-09-12 19:49:56,049 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:49:56,049 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:49:56,068 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-09-12 19:49:56,249 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:49:56,250 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-09-12 19:49:56,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:49:56,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1914070881, now seen corresponding path program 3 times [2024-09-12 19:49:56,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:49:56,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248471452] [2024-09-12 19:49:56,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:49:56,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:49:56,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:49:56,669 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:49:56,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:49:56,672 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:49:56,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:49:56,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248471452] [2024-09-12 19:49:56,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248471452] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:49:56,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [665132262] [2024-09-12 19:49:56,676 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:49:56,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:49:56,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:49:56,678 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 19:49:56,679 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 19:49:56,734 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-09-12 19:49:56,734 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:49:56,735 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-12 19:49:56,753 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:49:56,870 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:49:56,870 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:49:57,530 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:49:57,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [665132262] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:49:57,531 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:49:57,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2024-09-12 19:49:57,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980048703] [2024-09-12 19:49:57,531 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:49:57,532 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-09-12 19:49:57,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:49:57,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-09-12 19:49:57,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=1700, Unknown=0, NotChecked=0, Total=2256 [2024-09-12 19:49:57,534 INFO L87 Difference]: Start difference. First operand 347 states and 367 transitions. Second operand has 48 states, 45 states have (on average 2.0) internal successors, (90), 26 states have internal predecessors, (90), 23 states have call successors, (24), 23 states have call predecessors, (24), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:49:58,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:49:58,615 INFO L93 Difference]: Finished difference Result 826 states and 859 transitions. [2024-09-12 19:49:58,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-09-12 19:49:58,615 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 45 states have (on average 2.0) internal successors, (90), 26 states have internal predecessors, (90), 23 states have call successors, (24), 23 states have call predecessors, (24), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 60 [2024-09-12 19:49:58,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:49:58,620 INFO L225 Difference]: With dead ends: 826 [2024-09-12 19:49:58,620 INFO L226 Difference]: Without dead ends: 825 [2024-09-12 19:49:58,622 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 924 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1337, Invalid=3493, Unknown=0, NotChecked=0, Total=4830 [2024-09-12 19:49:58,625 INFO L434 NwaCegarLoop]: 36 mSDtfsCounter, 1257 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1258 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:49:58,625 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1258 Valid, 460 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:49:58,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2024-09-12 19:49:58,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 803. [2024-09-12 19:49:58,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 803 states, 674 states have (on average 1.0608308605341246) internal successors, (715), 671 states have internal predecessors, (715), 26 states have call successors, (26), 25 states have call predecessors, (26), 101 states have return successors, (106), 106 states have call predecessors, (106), 24 states have call successors, (106) [2024-09-12 19:49:58,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 847 transitions. [2024-09-12 19:49:58,744 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 847 transitions. Word has length 60 [2024-09-12 19:49:58,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:49:58,745 INFO L474 AbstractCegarLoop]: Abstraction has 803 states and 847 transitions. [2024-09-12 19:49:58,745 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 45 states have (on average 2.0) internal successors, (90), 26 states have internal predecessors, (90), 23 states have call successors, (24), 23 states have call predecessors, (24), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:49:58,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:49:58,746 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 847 transitions. [2024-09-12 19:49:58,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-09-12 19:49:58,747 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:49:58,747 INFO L216 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:49:58,764 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 19:49:58,948 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:49:58,948 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-09-12 19:49:58,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:49:58,949 INFO L85 PathProgramCache]: Analyzing trace with hash 686676534, now seen corresponding path program 2 times [2024-09-12 19:49:58,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:49:58,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138003649] [2024-09-12 19:49:58,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:49:58,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:49:58,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:49:59,009 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:49:59,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:49:59,012 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:49:59,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:49:59,074 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:49:59,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:49:59,116 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:49:59,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:49:59,162 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:49:59,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:49:59,198 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:49:59,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:49:59,217 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 19:49:59,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:49:59,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138003649] [2024-09-12 19:49:59,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138003649] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:49:59,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832625537] [2024-09-12 19:49:59,218 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:49:59,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:49:59,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:49:59,220 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 19:49:59,222 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 19:49:59,272 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:49:59,273 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:49:59,274 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 19:49:59,277 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:49:59,353 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 19:49:59,354 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:49:59,940 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 19:49:59,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1832625537] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:49:59,941 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:49:59,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2024-09-12 19:49:59,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826005725] [2024-09-12 19:49:59,941 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:49:59,942 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-12 19:49:59,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:49:59,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-12 19:49:59,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2024-09-12 19:49:59,943 INFO L87 Difference]: Start difference. First operand 803 states and 847 transitions. Second operand has 24 states, 23 states have (on average 3.130434782608696) internal successors, (72), 24 states have internal predecessors, (72), 1 states have call successors, (4), 1 states have call predecessors, (4), 12 states have return successors, (12), 12 states have call predecessors, (12), 1 states have call successors, (12) [2024-09-12 19:50:00,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:50:00,229 INFO L93 Difference]: Finished difference Result 1746 states and 1927 transitions. [2024-09-12 19:50:00,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-12 19:50:00,230 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.130434782608696) internal successors, (72), 24 states have internal predecessors, (72), 1 states have call successors, (4), 1 states have call predecessors, (4), 12 states have return successors, (12), 12 states have call predecessors, (12), 1 states have call successors, (12) Word has length 67 [2024-09-12 19:50:00,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:50:00,239 INFO L225 Difference]: With dead ends: 1746 [2024-09-12 19:50:00,241 INFO L226 Difference]: Without dead ends: 1442 [2024-09-12 19:50:00,246 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2024-09-12 19:50:00,247 INFO L434 NwaCegarLoop]: 16 mSDtfsCounter, 4 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:50:00,247 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 139 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:50:00,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1442 states. [2024-09-12 19:50:00,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1442 to 1442. [2024-09-12 19:50:00,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1442 states, 1226 states have (on average 1.0285481239804242) internal successors, (1261), 1217 states have internal predecessors, (1261), 26 states have call successors, (26), 25 states have call predecessors, (26), 188 states have return successors, (199), 199 states have call predecessors, (199), 24 states have call successors, (199) [2024-09-12 19:50:00,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1442 states to 1442 states and 1486 transitions. [2024-09-12 19:50:00,454 INFO L78 Accepts]: Start accepts. Automaton has 1442 states and 1486 transitions. Word has length 67 [2024-09-12 19:50:00,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:50:00,454 INFO L474 AbstractCegarLoop]: Abstraction has 1442 states and 1486 transitions. [2024-09-12 19:50:00,455 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.130434782608696) internal successors, (72), 24 states have internal predecessors, (72), 1 states have call successors, (4), 1 states have call predecessors, (4), 12 states have return successors, (12), 12 states have call predecessors, (12), 1 states have call successors, (12) [2024-09-12 19:50:00,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:50:00,455 INFO L276 IsEmpty]: Start isEmpty. Operand 1442 states and 1486 transitions. [2024-09-12 19:50:00,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-09-12 19:50:00,457 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:50:00,457 INFO L216 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:50:00,474 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 19:50:00,658 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-09-12 19:50:00,659 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-09-12 19:50:00,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:50:00,659 INFO L85 PathProgramCache]: Analyzing trace with hash 2058712801, now seen corresponding path program 4 times [2024-09-12 19:50:00,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:50:00,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016637996] [2024-09-12 19:50:00,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:50:00,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:50:00,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:50:01,880 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:50:01,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:50:01,887 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:50:01,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:50:01,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016637996] [2024-09-12 19:50:01,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016637996] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:50:01,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175066453] [2024-09-12 19:50:01,888 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 19:50:01,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:50:01,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:50:01,891 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 19:50:01,894 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 19:50:01,958 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 19:50:01,958 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:50:01,959 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-09-12 19:50:01,963 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:50:02,120 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:50:02,121 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:50:03,834 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:50:03,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175066453] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:50:03,835 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:50:03,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2024-09-12 19:50:03,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805243456] [2024-09-12 19:50:03,835 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:50:03,836 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2024-09-12 19:50:03,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:50:03,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2024-09-12 19:50:03,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2260, Invalid=6860, Unknown=0, NotChecked=0, Total=9120 [2024-09-12 19:50:03,842 INFO L87 Difference]: Start difference. First operand 1442 states and 1486 transitions. Second operand has 96 states, 93 states have (on average 2.0) internal successors, (186), 50 states have internal predecessors, (186), 47 states have call successors, (48), 47 states have call predecessors, (48), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:50:06,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:50:06,945 INFO L93 Difference]: Finished difference Result 3409 states and 3478 transitions. [2024-09-12 19:50:06,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-09-12 19:50:06,946 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 93 states have (on average 2.0) internal successors, (186), 50 states have internal predecessors, (186), 47 states have call successors, (48), 47 states have call predecessors, (48), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 120 [2024-09-12 19:50:06,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:50:06,960 INFO L225 Difference]: With dead ends: 3409 [2024-09-12 19:50:06,961 INFO L226 Difference]: Without dead ends: 3408 [2024-09-12 19:50:06,966 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4140 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=5549, Invalid=14473, Unknown=0, NotChecked=0, Total=20022 [2024-09-12 19:50:06,967 INFO L434 NwaCegarLoop]: 72 mSDtfsCounter, 2770 mSDsluCounter, 962 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 287 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2771 SdHoareTripleChecker+Valid, 1034 SdHoareTripleChecker+Invalid, 976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 287 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 19:50:06,967 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2771 Valid, 1034 Invalid, 976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [287 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 19:50:06,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3408 states. [2024-09-12 19:50:07,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3408 to 3362. [2024-09-12 19:50:07,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3362 states, 2858 states have (on average 1.0290412876137158) internal successors, (2941), 2849 states have internal predecessors, (2941), 50 states have call successors, (50), 49 states have call predecessors, (50), 452 states have return successors, (463), 463 states have call predecessors, (463), 48 states have call successors, (463) [2024-09-12 19:50:07,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3362 states to 3362 states and 3454 transitions. [2024-09-12 19:50:07,444 INFO L78 Accepts]: Start accepts. Automaton has 3362 states and 3454 transitions. Word has length 120 [2024-09-12 19:50:07,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:50:07,445 INFO L474 AbstractCegarLoop]: Abstraction has 3362 states and 3454 transitions. [2024-09-12 19:50:07,445 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 93 states have (on average 2.0) internal successors, (186), 50 states have internal predecessors, (186), 47 states have call successors, (48), 47 states have call predecessors, (48), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:50:07,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:50:07,446 INFO L276 IsEmpty]: Start isEmpty. Operand 3362 states and 3454 transitions. [2024-09-12 19:50:07,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-09-12 19:50:07,449 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:50:07,449 INFO L216 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:50:07,466 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 19:50:07,649 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:50:07,650 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-09-12 19:50:07,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:50:07,650 INFO L85 PathProgramCache]: Analyzing trace with hash -315523914, now seen corresponding path program 3 times [2024-09-12 19:50:07,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:50:07,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578167745] [2024-09-12 19:50:07,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:50:07,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:50:07,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:50:07,897 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:50:07,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:50:07,900 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:50:07,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:50:08,060 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:50:08,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:50:08,197 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:50:08,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:50:08,344 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:50:08,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:50:08,471 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:50:08,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:50:08,555 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:50:08,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:50:08,627 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:50:08,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:50:08,686 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:50:08,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:50:08,740 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:50:08,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:50:08,791 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:50:08,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:50:08,834 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:50:08,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:50:08,860 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2024-09-12 19:50:08,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:50:08,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578167745] [2024-09-12 19:50:08,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578167745] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:50:08,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [37597814] [2024-09-12 19:50:08,860 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:50:08,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:50:08,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:50:08,862 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 19:50:08,865 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 19:50:08,942 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-09-12 19:50:08,942 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:50:08,944 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-12 19:50:08,947 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:50:09,075 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2024-09-12 19:50:09,075 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:50:13,555 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2024-09-12 19:50:13,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [37597814] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:50:13,555 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:50:13,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 47 [2024-09-12 19:50:13,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396443889] [2024-09-12 19:50:13,555 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:50:13,556 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-09-12 19:50:13,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:50:13,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-09-12 19:50:13,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=599, Invalid=1657, Unknown=0, NotChecked=0, Total=2256 [2024-09-12 19:50:13,558 INFO L87 Difference]: Start difference. First operand 3362 states and 3454 transitions. Second operand has 48 states, 47 states have (on average 3.0638297872340425) internal successors, (144), 48 states have internal predecessors, (144), 1 states have call successors, (4), 1 states have call predecessors, (4), 24 states have return successors, (24), 24 states have call predecessors, (24), 1 states have call successors, (24) [2024-09-12 19:50:14,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:50:14,402 INFO L93 Difference]: Finished difference Result 7263 states and 7918 transitions. [2024-09-12 19:50:14,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-09-12 19:50:14,403 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 3.0638297872340425) internal successors, (144), 48 states have internal predecessors, (144), 1 states have call successors, (4), 1 states have call predecessors, (4), 24 states have return successors, (24), 24 states have call predecessors, (24), 1 states have call successors, (24) Word has length 139 [2024-09-12 19:50:14,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:50:14,432 INFO L225 Difference]: With dead ends: 7263 [2024-09-12 19:50:14,432 INFO L226 Difference]: Without dead ends: 5900 [2024-09-12 19:50:14,439 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1092 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=599, Invalid=1657, Unknown=0, NotChecked=0, Total=2256 [2024-09-12 19:50:14,440 INFO L434 NwaCegarLoop]: 16 mSDtfsCounter, 4 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:50:14,440 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 138 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:50:14,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5900 states. [2024-09-12 19:50:15,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5900 to 5900. [2024-09-12 19:50:15,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5900 states, 5042 states have (on average 1.014081713605712) internal successors, (5113), 5021 states have internal predecessors, (5113), 50 states have call successors, (50), 49 states have call predecessors, (50), 806 states have return successors, (829), 829 states have call predecessors, (829), 48 states have call successors, (829) [2024-09-12 19:50:15,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5900 states to 5900 states and 5992 transitions. [2024-09-12 19:50:15,322 INFO L78 Accepts]: Start accepts. Automaton has 5900 states and 5992 transitions. Word has length 139 [2024-09-12 19:50:15,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:50:15,323 INFO L474 AbstractCegarLoop]: Abstraction has 5900 states and 5992 transitions. [2024-09-12 19:50:15,323 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 3.0638297872340425) internal successors, (144), 48 states have internal predecessors, (144), 1 states have call successors, (4), 1 states have call predecessors, (4), 24 states have return successors, (24), 24 states have call predecessors, (24), 1 states have call successors, (24) [2024-09-12 19:50:15,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:50:15,324 INFO L276 IsEmpty]: Start isEmpty. Operand 5900 states and 5992 transitions. [2024-09-12 19:50:15,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-09-12 19:50:15,330 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:50:15,330 INFO L216 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:50:15,347 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 19:50:15,531 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:50:15,532 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-09-12 19:50:15,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:50:15,532 INFO L85 PathProgramCache]: Analyzing trace with hash -335882783, now seen corresponding path program 5 times [2024-09-12 19:50:15,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:50:15,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551487851] [2024-09-12 19:50:15,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:50:15,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:50:15,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:50:19,727 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:50:19,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:50:19,733 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:50:19,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:50:19,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551487851] [2024-09-12 19:50:19,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551487851] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:50:19,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140363581] [2024-09-12 19:50:19,734 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 19:50:19,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:50:19,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:50:19,737 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 19:50:19,738 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 19:50:19,982 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2024-09-12 19:50:19,982 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:50:19,985 INFO L262 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 96 conjuncts are in the unsatisfiable core [2024-09-12 19:50:19,990 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:50:20,250 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:50:20,251 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:50:26,467 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:50:26,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [140363581] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:50:26,468 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:50:26,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2024-09-12 19:50:26,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716810659] [2024-09-12 19:50:26,468 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:50:26,469 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2024-09-12 19:50:26,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:50:26,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2024-09-12 19:50:26,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9124, Invalid=27548, Unknown=0, NotChecked=0, Total=36672 [2024-09-12 19:50:26,483 INFO L87 Difference]: Start difference. First operand 5900 states and 5992 transitions. Second operand has 192 states, 189 states have (on average 2.0) internal successors, (378), 98 states have internal predecessors, (378), 95 states have call successors, (96), 95 states have call predecessors, (96), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:50:38,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:50:38,817 INFO L93 Difference]: Finished difference Result 13867 states and 14008 transitions. [2024-09-12 19:50:38,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2024-09-12 19:50:38,818 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 189 states have (on average 2.0) internal successors, (378), 98 states have internal predecessors, (378), 95 states have call successors, (96), 95 states have call predecessors, (96), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 240 [2024-09-12 19:50:38,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:50:38,878 INFO L225 Difference]: With dead ends: 13867 [2024-09-12 19:50:38,879 INFO L226 Difference]: Without dead ends: 13866 [2024-09-12 19:50:38,891 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 671 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 284 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17484 ImplicationChecksByTransitivity, 12.7s TimeCoverageRelationStatistics Valid=22613, Invalid=58897, Unknown=0, NotChecked=0, Total=81510 [2024-09-12 19:50:38,892 INFO L434 NwaCegarLoop]: 144 mSDtfsCounter, 5338 mSDsluCounter, 2389 mSDsCounter, 0 mSdLazyCounter, 1453 mSolverCounterSat, 524 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5339 SdHoareTripleChecker+Valid, 2533 SdHoareTripleChecker+Invalid, 1977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 524 IncrementalHoareTripleChecker+Valid, 1453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:50:38,892 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [5339 Valid, 2533 Invalid, 1977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [524 Valid, 1453 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-09-12 19:50:38,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13866 states. [2024-09-12 19:50:40,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13866 to 13772. [2024-09-12 19:50:40,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13772 states, 11762 states have (on average 1.0141982656010882) internal successors, (11929), 11741 states have internal predecessors, (11929), 98 states have call successors, (98), 97 states have call predecessors, (98), 1910 states have return successors, (1933), 1933 states have call predecessors, (1933), 96 states have call successors, (1933) [2024-09-12 19:50:40,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13772 states to 13772 states and 13960 transitions. [2024-09-12 19:50:40,611 INFO L78 Accepts]: Start accepts. Automaton has 13772 states and 13960 transitions. Word has length 240 [2024-09-12 19:50:40,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:50:40,612 INFO L474 AbstractCegarLoop]: Abstraction has 13772 states and 13960 transitions. [2024-09-12 19:50:40,613 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 189 states have (on average 2.0) internal successors, (378), 98 states have internal predecessors, (378), 95 states have call successors, (96), 95 states have call predecessors, (96), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:50:40,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:50:40,613 INFO L276 IsEmpty]: Start isEmpty. Operand 13772 states and 13960 transitions. [2024-09-12 19:50:40,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2024-09-12 19:50:40,626 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:50:40,626 INFO L216 NwaCegarLoop]: trace histogram [24, 23, 23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:50:40,645 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 19:50:40,827 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-09-12 19:50:40,827 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-09-12 19:50:40,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:50:40,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1563647562, now seen corresponding path program 4 times [2024-09-12 19:50:40,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:50:40,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996094984] [2024-09-12 19:50:40,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:50:40,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:50:40,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:50:41,338 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:50:41,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:50:41,342 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:50:41,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:50:41,711 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:50:41,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:50:42,081 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:50:42,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:50:42,436 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:50:42,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:50:42,704 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:50:42,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:50:43,038 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:50:43,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:50:43,275 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:50:43,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:50:43,484 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:50:43,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:50:43,680 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:50:43,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:50:43,851 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:50:43,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:50:44,016 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:50:44,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:50:44,165 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:50:44,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:50:44,329 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:50:44,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:50:44,444 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:50:44,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:50:44,554 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:50:44,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:50:44,651 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:50:44,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:50:44,741 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:50:44,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:50:44,833 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:50:44,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:50:44,973 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:50:44,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:50:45,047 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:50:45,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:50:45,115 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:50:45,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:50:45,182 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:50:45,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:50:45,246 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:50:45,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:50:45,291 INFO L134 CoverageAnalysis]: Checked inductivity of 3038 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2024-09-12 19:50:45,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:50:45,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996094984] [2024-09-12 19:50:45,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996094984] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:50:45,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001348549] [2024-09-12 19:50:45,292 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 19:50:45,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:50:45,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:50:45,294 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 19:50:45,295 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 19:50:45,457 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 19:50:45,457 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:50:45,459 INFO L262 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-09-12 19:50:45,463 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:50:45,692 INFO L134 CoverageAnalysis]: Checked inductivity of 3038 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2024-09-12 19:50:45,692 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:51:32,625 INFO L134 CoverageAnalysis]: Checked inductivity of 3038 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2024-09-12 19:51:32,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2001348549] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:51:32,626 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:51:32,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 63 [2024-09-12 19:51:32,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574566990] [2024-09-12 19:51:32,627 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:51:32,628 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2024-09-12 19:51:32,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:51:32,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2024-09-12 19:51:32,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1055, Invalid=2977, Unknown=0, NotChecked=0, Total=4032 [2024-09-12 19:51:32,630 INFO L87 Difference]: Start difference. First operand 13772 states and 13960 transitions. Second operand has 64 states, 63 states have (on average 3.0952380952380953) internal successors, (195), 64 states have internal predecessors, (195), 1 states have call successors, (4), 1 states have call predecessors, (4), 32 states have return successors, (32), 32 states have call predecessors, (32), 1 states have call successors, (32) [2024-09-12 19:51:34,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:51:34,318 INFO L93 Difference]: Finished difference Result 19061 states and 20008 transitions. [2024-09-12 19:51:34,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-09-12 19:51:34,319 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 3.0952380952380953) internal successors, (195), 64 states have internal predecessors, (195), 1 states have call successors, (4), 1 states have call predecessors, (4), 32 states have return successors, (32), 32 states have call predecessors, (32), 1 states have call successors, (32) Word has length 283 [2024-09-12 19:51:34,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:51:34,407 INFO L225 Difference]: With dead ends: 19061 [2024-09-12 19:51:34,407 INFO L226 Difference]: Without dead ends: 17592 [2024-09-12 19:51:34,424 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 660 GetRequests, 566 SyntacticMatches, 32 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3426 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1055, Invalid=2977, Unknown=0, NotChecked=0, Total=4032 [2024-09-12 19:51:34,425 INFO L434 NwaCegarLoop]: 16 mSDtfsCounter, 2 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:51:34,425 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 145 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:51:34,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17592 states. [2024-09-12 19:51:36,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17592 to 17592. [2024-09-12 19:51:36,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17592 states, 15042 states have (on average 1.0105704028719584) internal successors, (15201), 15013 states have internal predecessors, (15201), 98 states have call successors, (98), 97 states have call predecessors, (98), 2450 states have return successors, (2481), 2481 states have call predecessors, (2481), 96 states have call successors, (2481) [2024-09-12 19:51:36,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17592 states to 17592 states and 17780 transitions. [2024-09-12 19:51:36,110 INFO L78 Accepts]: Start accepts. Automaton has 17592 states and 17780 transitions. Word has length 283 [2024-09-12 19:51:36,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:51:36,110 INFO L474 AbstractCegarLoop]: Abstraction has 17592 states and 17780 transitions. [2024-09-12 19:51:36,111 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 3.0952380952380953) internal successors, (195), 64 states have internal predecessors, (195), 1 states have call successors, (4), 1 states have call predecessors, (4), 32 states have return successors, (32), 32 states have call predecessors, (32), 1 states have call successors, (32) [2024-09-12 19:51:36,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:51:36,111 INFO L276 IsEmpty]: Start isEmpty. Operand 17592 states and 17780 transitions. [2024-09-12 19:51:36,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2024-09-12 19:51:36,129 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:51:36,130 INFO L216 NwaCegarLoop]: trace histogram [32, 31, 31, 31, 31, 31, 31, 31, 31, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:51:36,147 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-09-12 19:51:36,330 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-09-12 19:51:36,330 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-09-12 19:51:36,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:51:36,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1838452662, now seen corresponding path program 5 times [2024-09-12 19:51:36,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:51:36,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379870948] [2024-09-12 19:51:36,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:51:36,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:51:36,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:51:37,018 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:51:37,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:51:37,020 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:51:37,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:51:37,617 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:51:37,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:51:38,238 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:51:38,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:51:38,723 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:51:38,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:51:39,150 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:51:39,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:51:39,562 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:51:39,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:51:39,986 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:51:40,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:51:40,306 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:51:40,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:51:40,625 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:51:40,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:51:40,878 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:51:40,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:51:41,160 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:51:41,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:51:41,415 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:51:41,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:51:41,677 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:51:41,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:51:41,893 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:51:41,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:51:42,079 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:51:42,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:51:42,242 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:51:42,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:51:42,382 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:51:42,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:51:42,523 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:51:42,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:51:42,661 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:51:42,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:51:42,771 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:51:42,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:51:42,856 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:51:42,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:51:42,925 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:51:42,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:51:43,002 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:51:43,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:51:43,058 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:51:43,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:51:43,107 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:51:43,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:51:43,172 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:51:43,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:51:43,232 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:51:43,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:51:43,286 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:51:43,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:51:43,328 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:51:43,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:51:43,363 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:51:43,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:51:43,397 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-09-12 19:51:43,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:51:43,451 INFO L134 CoverageAnalysis]: Checked inductivity of 5582 backedges. 3135 proven. 242 refuted. 0 times theorem prover too weak. 2205 trivial. 0 not checked. [2024-09-12 19:51:43,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:51:43,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379870948] [2024-09-12 19:51:43,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379870948] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:51:43,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305563952] [2024-09-12 19:51:43,451 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 19:51:43,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:51:43,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:51:43,452 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 19:51:43,453 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 19:51:44,105 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2024-09-12 19:51:44,105 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:51:44,108 INFO L262 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-09-12 19:51:44,113 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:51:44,519 INFO L134 CoverageAnalysis]: Checked inductivity of 5582 backedges. 3195 proven. 152 refuted. 0 times theorem prover too weak. 2235 trivial. 0 not checked. [2024-09-12 19:51:44,520 INFO L327 TraceCheckSpWp]: Computing backward predicates...