./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-zilu/benchmark10_conjunctive.i --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-zilu/benchmark10_conjunctive.i -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5a9444e5380fed44b00432b26b7edd9414dfa93ba2d2f76306ea753732eae2b3 --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-12 18:22:17,364 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 18:22:17,439 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 18:22:17,444 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 18:22:17,445 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 18:22:17,473 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 18:22:17,475 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 18:22:17,476 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 18:22:17,476 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 18:22:17,476 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 18:22:17,476 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 18:22:17,477 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 18:22:17,477 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 18:22:17,477 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 18:22:17,478 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 18:22:17,478 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 18:22:17,481 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 18:22:17,481 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 18:22:17,483 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 18:22:17,483 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 18:22:17,483 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 18:22:17,484 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 18:22:17,486 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 18:22:17,486 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 18:22:17,486 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 18:22:17,487 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 18:22:17,487 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 18:22:17,487 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 18:22:17,487 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 18:22:17,487 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 18:22:17,487 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 18:22:17,488 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 18:22:17,488 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:22:17,488 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 18:22:17,488 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 18:22:17,488 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 18:22:17,489 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 18:22:17,489 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 18:22:17,489 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 18:22:17,490 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 18:22:17,491 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 18:22:17,491 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 18:22:17,491 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a9444e5380fed44b00432b26b7edd9414dfa93ba2d2f76306ea753732eae2b3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 18:22:17,769 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 18:22:17,790 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 18:22:17,793 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 18:22:17,794 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 18:22:17,794 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 18:22:17,795 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loop-zilu/benchmark10_conjunctive.i [2024-09-12 18:22:19,188 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 18:22:19,360 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 18:22:19,361 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-zilu/benchmark10_conjunctive.i [2024-09-12 18:22:19,367 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/253411479/11341f43d0a7471bb7bacb8c3019cc80/FLAG0c3dbeafc [2024-09-12 18:22:19,381 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/253411479/11341f43d0a7471bb7bacb8c3019cc80 [2024-09-12 18:22:19,385 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 18:22:19,386 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 18:22:19,388 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 18:22:19,388 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 18:22:19,392 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 18:22:19,393 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:22:19" (1/1) ... [2024-09-12 18:22:19,394 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f5676a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:22:19, skipping insertion in model container [2024-09-12 18:22:19,394 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:22:19" (1/1) ... [2024-09-12 18:22:19,409 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 18:22:19,545 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-zilu/benchmark10_conjunctive.i[873,886] [2024-09-12 18:22:19,555 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:22:19,567 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 18:22:19,577 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-zilu/benchmark10_conjunctive.i[873,886] [2024-09-12 18:22:19,581 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:22:19,596 INFO L204 MainTranslator]: Completed translation [2024-09-12 18:22:19,596 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:22:19 WrapperNode [2024-09-12 18:22:19,596 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 18:22:19,597 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 18:22:19,597 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 18:22:19,598 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 18:22:19,603 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:22:19" (1/1) ... [2024-09-12 18:22:19,608 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:22:19" (1/1) ... [2024-09-12 18:22:19,613 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 18:22:19,614 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 18:22:19,614 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 18:22:19,615 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 18:22:19,615 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 18:22:19,622 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:22:19" (1/1) ... [2024-09-12 18:22:19,622 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:22:19" (1/1) ... [2024-09-12 18:22:19,624 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:22:19" (1/1) ... [2024-09-12 18:22:19,638 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-12 18:22:19,639 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:22:19" (1/1) ... [2024-09-12 18:22:19,639 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:22:19" (1/1) ... [2024-09-12 18:22:19,641 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:22:19" (1/1) ... [2024-09-12 18:22:19,644 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:22:19" (1/1) ... [2024-09-12 18:22:19,644 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:22:19" (1/1) ... [2024-09-12 18:22:19,645 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:22:19" (1/1) ... [2024-09-12 18:22:19,646 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 18:22:19,648 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 18:22:19,648 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 18:22:19,648 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 18:22:19,649 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:22:19" (1/1) ... [2024-09-12 18:22:19,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:22:19,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:22:19,681 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-12 18:22:19,684 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-12 18:22:19,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 18:22:19,729 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 18:22:19,729 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 18:22:19,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 18:22:19,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 18:22:19,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 18:22:19,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 18:22:19,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 18:22:19,729 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 18:22:19,730 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 18:22:19,783 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 18:22:19,786 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 18:22:19,901 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-09-12 18:22:19,901 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 18:22:19,914 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 18:22:19,915 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-12 18:22:19,915 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:22:19 BoogieIcfgContainer [2024-09-12 18:22:19,915 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 18:22:19,917 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 18:22:19,917 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 18:22:19,919 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 18:22:19,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 06:22:19" (1/3) ... [2024-09-12 18:22:19,920 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@693b7caa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:22:19, skipping insertion in model container [2024-09-12 18:22:19,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:22:19" (2/3) ... [2024-09-12 18:22:19,920 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@693b7caa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:22:19, skipping insertion in model container [2024-09-12 18:22:19,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:22:19" (3/3) ... [2024-09-12 18:22:19,921 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark10_conjunctive.i [2024-09-12 18:22:19,933 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 18:22:19,934 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-09-12 18:22:19,972 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 18:22:19,977 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;@6700aa78, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 18:22:19,978 INFO L337 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-09-12 18:22:19,981 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 16 states have (on average 1.625) internal successors, (26), 21 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:22:19,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-09-12 18:22:19,986 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:22:19,987 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:22:19,987 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:22:19,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:19,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1922183155, now seen corresponding path program 1 times [2024-09-12 18:22:20,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:22:20,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110660288] [2024-09-12 18:22:20,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:22:20,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:22:20,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:20,163 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:22:20,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:20,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:20,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:22:20,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110660288] [2024-09-12 18:22:20,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110660288] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:22:20,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:22:20,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:22:20,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831229457] [2024-09-12 18:22:20,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:22:20,178 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:22:20,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:22:20,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:22:20,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:22:20,196 INFO L87 Difference]: Start difference. First operand has 28 states, 16 states have (on average 1.625) internal successors, (26), 21 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:22:20,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:22:20,278 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2024-09-12 18:22:20,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:22:20,280 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 8 [2024-09-12 18:22:20,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:22:20,287 INFO L225 Difference]: With dead ends: 43 [2024-09-12 18:22:20,287 INFO L226 Difference]: Without dead ends: 22 [2024-09-12 18:22:20,290 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:22:20,296 INFO L434 NwaCegarLoop]: 15 mSDtfsCounter, 9 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:22:20,298 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 43 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:22:20,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-09-12 18:22:20,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2024-09-12 18:22:20,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 17 states have internal predecessors, (20), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:22:20,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2024-09-12 18:22:20,344 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 8 [2024-09-12 18:22:20,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:22:20,345 INFO L474 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2024-09-12 18:22:20,345 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:22:20,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:20,346 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2024-09-12 18:22:20,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-09-12 18:22:20,346 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:22:20,346 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:22:20,346 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 18:22:20,347 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:22:20,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:20,347 INFO L85 PathProgramCache]: Analyzing trace with hash 541864391, now seen corresponding path program 1 times [2024-09-12 18:22:20,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:22:20,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355919619] [2024-09-12 18:22:20,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:22:20,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:22:20,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:20,428 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:22:20,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:20,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:20,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:22:20,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355919619] [2024-09-12 18:22:20,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355919619] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:22:20,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:22:20,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:22:20,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340114960] [2024-09-12 18:22:20,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:22:20,445 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:22:20,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:22:20,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:22:20,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:22:20,448 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:22:20,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:22:20,503 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2024-09-12 18:22:20,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:22:20,504 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2024-09-12 18:22:20,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:22:20,505 INFO L225 Difference]: With dead ends: 24 [2024-09-12 18:22:20,505 INFO L226 Difference]: Without dead ends: 23 [2024-09-12 18:22:20,506 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:22:20,507 INFO L434 NwaCegarLoop]: 8 mSDtfsCounter, 9 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:22:20,508 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 22 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:22:20,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-09-12 18:22:20,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-09-12 18:22:20,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 15 states have (on average 1.4) internal successors, (21), 18 states have internal predecessors, (21), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:22:20,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2024-09-12 18:22:20,521 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 9 [2024-09-12 18:22:20,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:22:20,521 INFO L474 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2024-09-12 18:22:20,522 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:22:20,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:20,523 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2024-09-12 18:22:20,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-09-12 18:22:20,524 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:22:20,524 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:22:20,524 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 18:22:20,524 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:22:20,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:20,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1039760855, now seen corresponding path program 1 times [2024-09-12 18:22:20,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:22:20,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630816037] [2024-09-12 18:22:20,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:22:20,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:22:20,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:20,574 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:22:20,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:20,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:20,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:22:20,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630816037] [2024-09-12 18:22:20,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630816037] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:22:20,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:22:20,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:22:20,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011886417] [2024-09-12 18:22:20,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:22:20,589 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:22:20,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:22:20,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:22:20,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:22:20,591 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:22:20,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:22:20,629 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2024-09-12 18:22:20,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:22:20,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-09-12 18:22:20,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:22:20,632 INFO L225 Difference]: With dead ends: 31 [2024-09-12 18:22:20,632 INFO L226 Difference]: Without dead ends: 25 [2024-09-12 18:22:20,632 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:22:20,634 INFO L434 NwaCegarLoop]: 15 mSDtfsCounter, 4 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:22:20,635 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 22 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:22:20,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-09-12 18:22:20,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-09-12 18:22:20,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:22:20,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2024-09-12 18:22:20,648 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 11 [2024-09-12 18:22:20,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:22:20,648 INFO L474 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2024-09-12 18:22:20,648 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:22:20,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:20,649 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2024-09-12 18:22:20,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-09-12 18:22:20,650 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:22:20,650 INFO L216 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:22:20,650 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-12 18:22:20,650 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:22:20,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:20,651 INFO L85 PathProgramCache]: Analyzing trace with hash 592586646, now seen corresponding path program 1 times [2024-09-12 18:22:20,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:22:20,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185506715] [2024-09-12 18:22:20,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:22:20,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:22:20,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:20,704 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:22:20,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:20,709 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:20,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:22:20,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185506715] [2024-09-12 18:22:20,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185506715] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:22:20,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:22:20,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:22:20,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783990965] [2024-09-12 18:22:20,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:22:20,711 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:22:20,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:22:20,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:22:20,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:22:20,712 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:22:20,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:22:20,762 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2024-09-12 18:22:20,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:22:20,762 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2024-09-12 18:22:20,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:22:20,763 INFO L225 Difference]: With dead ends: 25 [2024-09-12 18:22:20,763 INFO L226 Difference]: Without dead ends: 24 [2024-09-12 18:22:20,763 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:22:20,764 INFO L434 NwaCegarLoop]: 14 mSDtfsCounter, 7 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:22:20,764 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 28 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:22:20,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-09-12 18:22:20,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2024-09-12 18:22:20,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 states have internal predecessors, (21), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:22:20,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2024-09-12 18:22:20,769 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 14 [2024-09-12 18:22:20,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:22:20,770 INFO L474 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2024-09-12 18:22:20,770 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:22:20,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:20,770 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2024-09-12 18:22:20,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-09-12 18:22:20,771 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:22:20,771 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:22:20,771 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-12 18:22:20,771 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:22:20,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:20,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1755698138, now seen corresponding path program 1 times [2024-09-12 18:22:20,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:22:20,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515289928] [2024-09-12 18:22:20,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:22:20,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:22:20,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:20,803 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:22:20,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:20,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:20,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:22:20,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515289928] [2024-09-12 18:22:20,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515289928] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:22:20,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:22:20,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:22:20,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496823249] [2024-09-12 18:22:20,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:22:20,808 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:22:20,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:22:20,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:22:20,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:22:20,809 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:22:20,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:22:20,833 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2024-09-12 18:22:20,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:22:20,834 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 16 [2024-09-12 18:22:20,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:22:20,834 INFO L225 Difference]: With dead ends: 29 [2024-09-12 18:22:20,835 INFO L226 Difference]: Without dead ends: 24 [2024-09-12 18:22:20,835 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:22:20,835 INFO L434 NwaCegarLoop]: 9 mSDtfsCounter, 6 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:22:20,836 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 16 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:22:20,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-09-12 18:22:20,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2024-09-12 18:22:20,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:22:20,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2024-09-12 18:22:20,841 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 16 [2024-09-12 18:22:20,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:22:20,841 INFO L474 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2024-09-12 18:22:20,841 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:22:20,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:20,841 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2024-09-12 18:22:20,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-09-12 18:22:20,842 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:22:20,842 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:22:20,842 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-09-12 18:22:20,842 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:22:20,842 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:20,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1190316894, now seen corresponding path program 1 times [2024-09-12 18:22:20,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:22:20,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791739802] [2024-09-12 18:22:20,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:22:20,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:22:20,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:20,883 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:22:20,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:20,887 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:20,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:22:20,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791739802] [2024-09-12 18:22:20,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791739802] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:22:20,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1150836559] [2024-09-12 18:22:20,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:22:20,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:22:20,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:22:20,889 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:22:20,891 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-12 18:22:20,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:20,925 INFO L262 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:22:20,928 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:22:20,980 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:20,980 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:22:21,027 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:21,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1150836559] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:22:21,028 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:22:21,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-09-12 18:22:21,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068059130] [2024-09-12 18:22:21,029 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:22:21,029 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:22:21,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:22:21,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:22:21,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:22:21,031 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand has 11 states, 10 states have (on average 3.2) internal successors, (32), 11 states have internal predecessors, (32), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:22:21,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:22:21,115 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2024-09-12 18:22:21,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:22:21,116 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.2) internal successors, (32), 11 states have internal predecessors, (32), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2024-09-12 18:22:21,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:22:21,117 INFO L225 Difference]: With dead ends: 42 [2024-09-12 18:22:21,117 INFO L226 Difference]: Without dead ends: 36 [2024-09-12 18:22:21,118 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:22:21,118 INFO L434 NwaCegarLoop]: 10 mSDtfsCounter, 9 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:22:21,119 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 59 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:22:21,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-09-12 18:22:21,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2024-09-12 18:22:21,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 29 states have internal predecessors, (32), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:22:21,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2024-09-12 18:22:21,127 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 15 [2024-09-12 18:22:21,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:22:21,127 INFO L474 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2024-09-12 18:22:21,128 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.2) internal successors, (32), 11 states have internal predecessors, (32), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:22:21,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:21,128 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2024-09-12 18:22:21,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-09-12 18:22:21,129 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:22:21,129 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:22:21,142 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-12 18:22:21,329 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-12 18:22:21,330 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:22:21,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:21,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1433236128, now seen corresponding path program 1 times [2024-09-12 18:22:21,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:22:21,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214115145] [2024-09-12 18:22:21,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:22:21,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:22:21,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:21,383 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:22:21,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:21,386 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 18:22:21,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:22:21,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214115145] [2024-09-12 18:22:21,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214115145] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:22:21,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:22:21,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:22:21,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251970132] [2024-09-12 18:22:21,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:22:21,387 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:22:21,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:22:21,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:22:21,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:22:21,388 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:22:21,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:22:21,406 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2024-09-12 18:22:21,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:22:21,407 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-09-12 18:22:21,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:22:21,408 INFO L225 Difference]: With dead ends: 34 [2024-09-12 18:22:21,409 INFO L226 Difference]: Without dead ends: 33 [2024-09-12 18:22:21,409 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:22:21,409 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:22:21,410 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:22:21,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2024-09-12 18:22:21,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2024-09-12 18:22:21,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 28 states have internal predecessors, (30), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:22:21,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2024-09-12 18:22:21,435 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 17 [2024-09-12 18:22:21,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:22:21,435 INFO L474 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2024-09-12 18:22:21,437 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:22:21,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:21,438 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2024-09-12 18:22:21,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-09-12 18:22:21,438 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:22:21,439 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:22:21,439 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-12 18:22:21,439 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:22:21,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:21,439 INFO L85 PathProgramCache]: Analyzing trace with hash -793042875, now seen corresponding path program 1 times [2024-09-12 18:22:21,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:22:21,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484945539] [2024-09-12 18:22:21,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:22:21,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:22:21,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:21,533 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:22:21,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:21,536 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:21,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:22:21,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484945539] [2024-09-12 18:22:21,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484945539] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:22:21,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877574295] [2024-09-12 18:22:21,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:22:21,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:22:21,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:22:21,538 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:22:21,541 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-12 18:22:21,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:21,571 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:22:21,572 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:22:21,607 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:21,607 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:22:21,655 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:21,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877574295] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:22:21,656 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:22:21,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 14 [2024-09-12 18:22:21,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683432462] [2024-09-12 18:22:21,657 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:22:21,657 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 18:22:21,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:22:21,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 18:22:21,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:22:21,659 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand has 14 states, 14 states have (on average 3.5) internal successors, (49), 13 states have internal predecessors, (49), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:22:21,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:22:21,882 INFO L93 Difference]: Finished difference Result 52 states and 58 transitions. [2024-09-12 18:22:21,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-12 18:22:21,882 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.5) internal successors, (49), 13 states have internal predecessors, (49), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2024-09-12 18:22:21,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:22:21,883 INFO L225 Difference]: With dead ends: 52 [2024-09-12 18:22:21,883 INFO L226 Difference]: Without dead ends: 44 [2024-09-12 18:22:21,884 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=193, Invalid=619, Unknown=0, NotChecked=0, Total=812 [2024-09-12 18:22:21,885 INFO L434 NwaCegarLoop]: 6 mSDtfsCounter, 33 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:22:21,885 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 37 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:22:21,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-09-12 18:22:21,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 28. [2024-09-12 18:22:21,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 24 states have (on average 1.0416666666666667) internal successors, (25), 24 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:22:21,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2024-09-12 18:22:21,893 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 23 [2024-09-12 18:22:21,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:22:21,894 INFO L474 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2024-09-12 18:22:21,894 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.5) internal successors, (49), 13 states have internal predecessors, (49), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:22:21,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:21,894 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2024-09-12 18:22:21,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-09-12 18:22:21,895 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:22:21,895 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:22:21,913 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-09-12 18:22:22,096 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:22:22,096 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:22:22,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:22,097 INFO L85 PathProgramCache]: Analyzing trace with hash -2111732020, now seen corresponding path program 2 times [2024-09-12 18:22:22,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:22:22,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452328127] [2024-09-12 18:22:22,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:22:22,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:22:22,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:22,177 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:22:22,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:22,180 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:22,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:22:22,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452328127] [2024-09-12 18:22:22,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452328127] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:22:22,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1845458660] [2024-09-12 18:22:22,180 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:22:22,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:22:22,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:22:22,183 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:22:22,184 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-12 18:22:22,213 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:22:22,214 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:22:22,214 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:22:22,215 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:22:22,304 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:22,304 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:22:22,409 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:22,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1845458660] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:22:22,410 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:22:22,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2024-09-12 18:22:22,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374159467] [2024-09-12 18:22:22,410 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:22:22,411 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-09-12 18:22:22,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:22:22,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-09-12 18:22:22,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2024-09-12 18:22:22,413 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand has 22 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 22 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:22:22,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:22:22,675 INFO L93 Difference]: Finished difference Result 53 states and 56 transitions. [2024-09-12 18:22:22,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-12 18:22:22,676 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 22 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2024-09-12 18:22:22,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:22:22,677 INFO L225 Difference]: With dead ends: 53 [2024-09-12 18:22:22,677 INFO L226 Difference]: Without dead ends: 52 [2024-09-12 18:22:22,677 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 357 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=413, Invalid=919, Unknown=0, NotChecked=0, Total=1332 [2024-09-12 18:22:22,678 INFO L434 NwaCegarLoop]: 6 mSDtfsCounter, 35 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:22:22,678 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 40 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:22:22,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-09-12 18:22:22,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-09-12 18:22:22,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 48 states have (on average 1.0208333333333333) internal successors, (49), 48 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:22:22,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2024-09-12 18:22:22,690 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 27 [2024-09-12 18:22:22,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:22:22,691 INFO L474 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2024-09-12 18:22:22,691 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 22 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:22:22,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:22,691 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2024-09-12 18:22:22,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-09-12 18:22:22,692 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:22:22,692 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:22:22,705 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-12 18:22:22,896 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-09-12 18:22:22,897 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:22:22,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:22,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1064608088, now seen corresponding path program 3 times [2024-09-12 18:22:22,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:22:22,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361324233] [2024-09-12 18:22:22,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:22:22,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:22:22,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:23,113 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:22:23,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:23,116 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:23,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:22:23,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361324233] [2024-09-12 18:22:23,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361324233] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:22:23,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562608445] [2024-09-12 18:22:23,117 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:22:23,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:22:23,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:22:23,119 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:22:23,123 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-12 18:22:23,160 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-09-12 18:22:23,160 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:22:23,161 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 18:22:23,163 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:22:23,524 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:23,524 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:22:23,886 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:23,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562608445] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:22:23,887 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:22:23,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 46 [2024-09-12 18:22:23,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423989073] [2024-09-12 18:22:23,887 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:22:23,888 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2024-09-12 18:22:23,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:22:23,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2024-09-12 18:22:23,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=434, Invalid=1728, Unknown=0, NotChecked=0, Total=2162 [2024-09-12 18:22:23,890 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand has 47 states, 46 states have (on average 3.0434782608695654) internal successors, (140), 47 states have internal predecessors, (140), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:22:24,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:22:24,863 INFO L93 Difference]: Finished difference Result 101 states and 108 transitions. [2024-09-12 18:22:24,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-09-12 18:22:24,864 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 46 states have (on average 3.0434782608695654) internal successors, (140), 47 states have internal predecessors, (140), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2024-09-12 18:22:24,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:22:24,865 INFO L225 Difference]: With dead ends: 101 [2024-09-12 18:22:24,865 INFO L226 Difference]: Without dead ends: 100 [2024-09-12 18:22:24,890 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2096 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1820, Invalid=4822, Unknown=0, NotChecked=0, Total=6642 [2024-09-12 18:22:24,891 INFO L434 NwaCegarLoop]: 6 mSDtfsCounter, 147 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:22:24,891 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 78 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:22:24,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-09-12 18:22:24,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2024-09-12 18:22:24,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 96 states have (on average 1.0104166666666667) internal successors, (97), 96 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:22:24,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 100 transitions. [2024-09-12 18:22:24,911 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 100 transitions. Word has length 51 [2024-09-12 18:22:24,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:22:24,911 INFO L474 AbstractCegarLoop]: Abstraction has 100 states and 100 transitions. [2024-09-12 18:22:24,911 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 46 states have (on average 3.0434782608695654) internal successors, (140), 47 states have internal predecessors, (140), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:22:24,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:24,911 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 100 transitions. [2024-09-12 18:22:24,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-09-12 18:22:24,913 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:22:24,913 INFO L216 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:22:24,932 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-12 18:22:25,117 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:22:25,118 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:22:25,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:25,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1361220192, now seen corresponding path program 4 times [2024-09-12 18:22:25,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:22:25,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565258663] [2024-09-12 18:22:25,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:22:25,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:22:25,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:25,826 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:22:25,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:25,830 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 0 proven. 675 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:25,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:22:25,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565258663] [2024-09-12 18:22:25,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565258663] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:22:25,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425376614] [2024-09-12 18:22:25,830 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 18:22:25,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:22:25,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:22:25,832 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:22:25,833 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-12 18:22:25,893 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 18:22:25,893 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:22:25,897 INFO L262 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-09-12 18:22:25,900 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:22:26,362 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 0 proven. 675 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:26,362 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:22:27,550 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 0 proven. 675 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:27,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1425376614] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:22:27,551 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:22:27,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 75 [2024-09-12 18:22:27,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296574264] [2024-09-12 18:22:27,551 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:22:27,552 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2024-09-12 18:22:27,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:22:27,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2024-09-12 18:22:27,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1182, Invalid=4518, Unknown=0, NotChecked=0, Total=5700 [2024-09-12 18:22:27,555 INFO L87 Difference]: Start difference. First operand 100 states and 100 transitions. Second operand has 76 states, 75 states have (on average 3.026666666666667) internal successors, (227), 76 states have internal predecessors, (227), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:22:32,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:22:32,320 INFO L93 Difference]: Finished difference Result 197 states and 212 transitions. [2024-09-12 18:22:32,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2024-09-12 18:22:32,321 INFO L78 Accepts]: Start accepts. Automaton has has 76 states, 75 states have (on average 3.026666666666667) internal successors, (227), 76 states have internal predecessors, (227), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 99 [2024-09-12 18:22:32,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:22:32,326 INFO L225 Difference]: With dead ends: 197 [2024-09-12 18:22:32,326 INFO L226 Difference]: Without dead ends: 196 [2024-09-12 18:22:32,331 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 173 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11169 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=8175, Invalid=22275, Unknown=0, NotChecked=0, Total=30450 [2024-09-12 18:22:32,332 INFO L434 NwaCegarLoop]: 6 mSDtfsCounter, 454 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 2236 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 2440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 2236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:22:32,332 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 102 Invalid, 2440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 2236 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-09-12 18:22:32,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-09-12 18:22:32,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2024-09-12 18:22:32,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 192 states have (on average 1.0052083333333333) internal successors, (193), 192 states have internal predecessors, (193), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:22:32,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 196 transitions. [2024-09-12 18:22:32,443 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 196 transitions. Word has length 99 [2024-09-12 18:22:32,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:22:32,449 INFO L474 AbstractCegarLoop]: Abstraction has 196 states and 196 transitions. [2024-09-12 18:22:32,449 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 76 states, 75 states have (on average 3.026666666666667) internal successors, (227), 76 states have internal predecessors, (227), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:22:32,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:32,450 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 196 transitions. [2024-09-12 18:22:32,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-09-12 18:22:32,452 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:22:32,452 INFO L216 NwaCegarLoop]: trace histogram [32, 32, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:22:32,465 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-12 18:22:32,652 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-09-12 18:22:32,653 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:22:32,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:32,654 INFO L85 PathProgramCache]: Analyzing trace with hash -739309104, now seen corresponding path program 5 times [2024-09-12 18:22:32,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:22:32,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812707479] [2024-09-12 18:22:32,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:22:32,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:22:32,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:34,864 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:22:34,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:34,869 INFO L134 CoverageAnalysis]: Checked inductivity of 2883 backedges. 0 proven. 2883 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:34,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:22:34,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812707479] [2024-09-12 18:22:34,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812707479] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:22:34,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730321135] [2024-09-12 18:22:34,870 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 18:22:34,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:22:34,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:22:34,872 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:22:34,873 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-12 18:22:34,940 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2024-09-12 18:22:34,941 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:22:34,943 INFO L262 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-09-12 18:22:34,947 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:22:37,872 INFO L134 CoverageAnalysis]: Checked inductivity of 2883 backedges. 0 proven. 2883 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:37,872 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:22:43,150 INFO L134 CoverageAnalysis]: Checked inductivity of 2883 backedges. 0 proven. 2883 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:43,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [730321135] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:22:43,151 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:22:43,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 65, 65] total 181 [2024-09-12 18:22:43,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267523261] [2024-09-12 18:22:43,151 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:22:43,152 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 182 states [2024-09-12 18:22:43,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:22:43,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 182 interpolants. [2024-09-12 18:22:43,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5538, Invalid=27404, Unknown=0, NotChecked=0, Total=32942 [2024-09-12 18:22:43,159 INFO L87 Difference]: Start difference. First operand 196 states and 196 transitions. Second operand has 182 states, 181 states have (on average 2.994475138121547) internal successors, (542), 182 states have internal predecessors, (542), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:23:05,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:23:05,816 INFO L93 Difference]: Finished difference Result 437 states and 476 transitions. [2024-09-12 18:23:05,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 233 states. [2024-09-12 18:23:05,817 INFO L78 Accepts]: Start accepts. Automaton has has 182 states, 181 states have (on average 2.994475138121547) internal successors, (542), 182 states have internal predecessors, (542), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 195 [2024-09-12 18:23:05,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:23:05,819 INFO L225 Difference]: With dead ends: 437 [2024-09-12 18:23:05,819 INFO L226 Difference]: Without dead ends: 436 [2024-09-12 18:23:05,828 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 676 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 401 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58330 ImplicationChecksByTransitivity, 27.1s TimeCoverageRelationStatistics Valid=43554, Invalid=118452, Unknown=0, NotChecked=0, Total=162006 [2024-09-12 18:23:05,828 INFO L434 NwaCegarLoop]: 6 mSDtfsCounter, 1750 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 9592 mSolverCounterSat, 694 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1750 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 10286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 694 IncrementalHoareTripleChecker+Valid, 9592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:23:05,829 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1750 Valid, 156 Invalid, 10286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [694 Valid, 9592 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-09-12 18:23:05,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2024-09-12 18:23:05,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 436. [2024-09-12 18:23:05,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 432 states have (on average 1.0023148148148149) internal successors, (433), 432 states have internal predecessors, (433), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:23:05,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 436 transitions. [2024-09-12 18:23:05,903 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 436 transitions. Word has length 195 [2024-09-12 18:23:05,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:23:05,904 INFO L474 AbstractCegarLoop]: Abstraction has 436 states and 436 transitions. [2024-09-12 18:23:05,904 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 182 states, 181 states have (on average 2.994475138121547) internal successors, (542), 182 states have internal predecessors, (542), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:23:05,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:23:05,904 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 436 transitions. [2024-09-12 18:23:05,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2024-09-12 18:23:05,911 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:23:05,911 INFO L216 NwaCegarLoop]: trace histogram [72, 72, 71, 71, 71, 71, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:23:05,929 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-12 18:23:06,112 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-09-12 18:23:06,113 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:23:06,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:23:06,113 INFO L85 PathProgramCache]: Analyzing trace with hash -695714712, now seen corresponding path program 6 times [2024-09-12 18:23:06,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:23:06,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964173100] [2024-09-12 18:23:06,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:23:06,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:23:06,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:23:16,315 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:23:16,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:23:16,325 INFO L134 CoverageAnalysis]: Checked inductivity of 15123 backedges. 0 proven. 15123 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:23:16,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:23:16,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964173100] [2024-09-12 18:23:16,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964173100] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:23:16,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220508407] [2024-09-12 18:23:16,326 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 18:23:16,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:23:16,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:23:16,327 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:23:16,328 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-12 18:23:16,480 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 72 check-sat command(s) [2024-09-12 18:23:16,480 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:23:16,485 INFO L262 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 145 conjuncts are in the unsatisfiable core [2024-09-12 18:23:16,491 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:23:34,434 INFO L134 CoverageAnalysis]: Checked inductivity of 15123 backedges. 0 proven. 15123 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:23:34,435 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:24:00,333 INFO L134 CoverageAnalysis]: Checked inductivity of 15123 backedges. 0 proven. 15123 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:24:00,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220508407] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:24:00,334 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:24:00,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [144, 144, 144] total 430 [2024-09-12 18:24:00,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750723604] [2024-09-12 18:24:00,334 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:24:00,335 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 431 states [2024-09-12 18:24:00,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:00,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 431 interpolants. [2024-09-12 18:24:00,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29202, Invalid=156128, Unknown=0, NotChecked=0, Total=185330 [2024-09-12 18:24:00,350 INFO L87 Difference]: Start difference. First operand 436 states and 436 transitions. Second operand has 431 states, 430 states have (on average 3.0046511627906978) internal successors, (1292), 431 states have internal predecessors, (1292), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:26:26,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:26:26,226 INFO L93 Difference]: Finished difference Result 869 states and 940 transitions. [2024-09-12 18:26:26,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 424 states. [2024-09-12 18:26:26,228 INFO L78 Accepts]: Start accepts. Automaton has has 431 states, 430 states have (on average 3.0046511627906978) internal successors, (1292), 431 states have internal predecessors, (1292), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 435 [2024-09-12 18:26:26,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:26:26,231 INFO L225 Difference]: With dead ends: 869 [2024-09-12 18:26:26,231 INFO L226 Difference]: Without dead ends: 868 [2024-09-12 18:26:26,266 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1434 GetRequests, 586 SyntacticMatches, 0 SemanticMatches, 848 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254216 ImplicationChecksByTransitivity, 173.2s TimeCoverageRelationStatistics Valid=182788, Invalid=538862, Unknown=0, NotChecked=0, Total=721650 [2024-09-12 18:26:26,267 INFO L434 NwaCegarLoop]: 6 mSDtfsCounter, 9784 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 46651 mSolverCounterSat, 3344 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9784 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 49995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3344 IncrementalHoareTripleChecker+Valid, 46651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:26:26,267 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9784 Valid, 645 Invalid, 49995 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3344 Valid, 46651 Invalid, 0 Unknown, 0 Unchecked, 15.3s Time] [2024-09-12 18:26:26,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2024-09-12 18:26:26,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 868. [2024-09-12 18:26:26,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 868 states, 864 states have (on average 1.0011574074074074) internal successors, (865), 864 states have internal predecessors, (865), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:26:26,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 868 states and 868 transitions. [2024-09-12 18:26:26,407 INFO L78 Accepts]: Start accepts. Automaton has 868 states and 868 transitions. Word has length 435 [2024-09-12 18:26:26,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:26:26,408 INFO L474 AbstractCegarLoop]: Abstraction has 868 states and 868 transitions. [2024-09-12 18:26:26,409 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 431 states, 430 states have (on average 3.0046511627906978) internal successors, (1292), 431 states have internal predecessors, (1292), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:26:26,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:26,409 INFO L276 IsEmpty]: Start isEmpty. Operand 868 states and 868 transitions. [2024-09-12 18:26:26,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 868 [2024-09-12 18:26:26,423 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:26:26,423 INFO L216 NwaCegarLoop]: trace histogram [144, 144, 143, 143, 143, 143, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:26:26,439 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-12 18:26:26,623 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:26:26,624 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:26:26,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:26,625 INFO L85 PathProgramCache]: Analyzing trace with hash -191672864, now seen corresponding path program 7 times [2024-09-12 18:26:26,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:26:26,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996304223] [2024-09-12 18:26:26,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:26:26,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:26:27,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:34,251 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:26:34,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:26:34,268 INFO L134 CoverageAnalysis]: Checked inductivity of 61347 backedges. 55671 proven. 0 refuted. 0 times theorem prover too weak. 5676 trivial. 0 not checked. [2024-09-12 18:26:34,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:26:34,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996304223] [2024-09-12 18:26:34,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996304223] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:26:34,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:26:34,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [102] imperfect sequences [] total 102 [2024-09-12 18:26:34,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400172230] [2024-09-12 18:26:34,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:26:34,269 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2024-09-12 18:26:34,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:26:34,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2024-09-12 18:26:34,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5151, Invalid=5151, Unknown=0, NotChecked=0, Total=10302 [2024-09-12 18:26:34,278 INFO L87 Difference]: Start difference. First operand 868 states and 868 transitions. Second operand has 102 states, 102 states have (on average 5.950980392156863) internal successors, (607), 102 states have internal predecessors, (607), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:26:35,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:26:35,992 INFO L93 Difference]: Finished difference Result 868 states and 868 transitions. [2024-09-12 18:26:35,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2024-09-12 18:26:35,993 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 102 states have (on average 5.950980392156863) internal successors, (607), 102 states have internal predecessors, (607), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 867 [2024-09-12 18:26:35,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:26:35,997 INFO L225 Difference]: With dead ends: 868 [2024-09-12 18:26:35,997 INFO L226 Difference]: Without dead ends: 0 [2024-09-12 18:26:36,007 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=5151, Invalid=5151, Unknown=0, NotChecked=0, Total=10302 [2024-09-12 18:26:36,007 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 2687 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 2687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:26:36,008 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 2687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2687 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 18:26:36,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-12 18:26:36,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-12 18:26:36,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-12 18:26:36,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-12 18:26:36,011 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 867 [2024-09-12 18:26:36,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:26:36,011 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-12 18:26:36,012 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 102 states have (on average 5.950980392156863) internal successors, (607), 102 states have internal predecessors, (607), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:26:36,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:26:36,012 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-12 18:26:36,012 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-12 18:26:36,014 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 5 remaining) [2024-09-12 18:26:36,015 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 5 remaining) [2024-09-12 18:26:36,015 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 5 remaining) [2024-09-12 18:26:36,015 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 5 remaining) [2024-09-12 18:26:36,015 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2024-09-12 18:26:36,015 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-09-12 18:26:36,023 INFO L408 BasicCegarLoop]: Path program histogram: [7, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:26:36,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.