./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-zilu/benchmark23_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/benchmark23_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 c8661b1e533413e4de6576c4feab251d05a672526bd5f59b260c6cb9f9c05939 --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 18:22:41,558 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 18:22:41,642 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 18:22:41,648 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 18:22:41,649 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 18:22:41,680 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 18:22:41,680 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 18:22:41,680 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 18:22:41,681 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 18:22:41,681 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 18:22:41,682 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 18:22:41,682 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 18:22:41,687 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 18:22:41,689 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 18:22:41,689 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 18:22:41,689 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 18:22:41,690 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 18:22:41,693 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 18:22:41,693 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 18:22:41,694 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 18:22:41,694 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 18:22:41,694 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 18:22:41,695 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 18:22:41,695 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 18:22:41,695 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 18:22:41,697 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 18:22:41,697 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 18:22:41,697 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 18:22:41,698 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 18:22:41,698 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 18:22:41,698 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 18:22:41,698 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 18:22:41,699 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:22:41,699 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 18:22:41,699 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 18:22:41,699 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 18:22:41,700 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 18:22:41,700 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 18:22:41,700 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 18:22:41,701 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 18:22:41,701 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 18:22:41,701 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 18:22:41,701 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8661b1e533413e4de6576c4feab251d05a672526bd5f59b260c6cb9f9c05939 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 18:22:42,049 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 18:22:42,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 18:22:42,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 18:22:42,084 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 18:22:42,085 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 18:22:42,086 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i [2024-09-12 18:22:43,661 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 18:22:43,906 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 18:22:43,907 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i [2024-09-12 18:22:43,918 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/5b0392677/b01ba03ae96f417f92b51a2704a852ae/FLAGc0fc5ec72 [2024-09-12 18:22:43,933 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/5b0392677/b01ba03ae96f417f92b51a2704a852ae [2024-09-12 18:22:43,936 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 18:22:43,940 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 18:22:43,941 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 18:22:43,942 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 18:22:43,948 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 18:22:43,950 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:22:43" (1/1) ... [2024-09-12 18:22:43,951 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54588c3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:22:43, skipping insertion in model container [2024-09-12 18:22:43,951 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:22:43" (1/1) ... [2024-09-12 18:22:43,967 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 18:22:44,122 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/benchmark23_conjunctive.i[873,886] [2024-09-12 18:22:44,139 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:22:44,154 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 18:22:44,166 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/benchmark23_conjunctive.i[873,886] [2024-09-12 18:22:44,170 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:22:44,187 INFO L204 MainTranslator]: Completed translation [2024-09-12 18:22:44,187 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:22:44 WrapperNode [2024-09-12 18:22:44,187 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 18:22:44,189 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 18:22:44,189 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 18:22:44,190 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 18:22:44,196 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:22:44" (1/1) ... [2024-09-12 18:22:44,204 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:22:44" (1/1) ... [2024-09-12 18:22:44,211 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 18:22:44,212 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 18:22:44,213 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 18:22:44,213 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 18:22:44,213 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 18:22:44,222 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:22:44" (1/1) ... [2024-09-12 18:22:44,222 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:22:44" (1/1) ... [2024-09-12 18:22:44,224 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:22:44" (1/1) ... [2024-09-12 18:22:44,240 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 18:22:44,240 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:22:44" (1/1) ... [2024-09-12 18:22:44,240 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:22:44" (1/1) ... [2024-09-12 18:22:44,243 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:22:44" (1/1) ... [2024-09-12 18:22:44,247 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:22:44" (1/1) ... [2024-09-12 18:22:44,248 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:22:44" (1/1) ... [2024-09-12 18:22:44,248 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:22:44" (1/1) ... [2024-09-12 18:22:44,251 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 18:22:44,255 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 18:22:44,255 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 18:22:44,256 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 18:22:44,271 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:22:44" (1/1) ... [2024-09-12 18:22:44,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:22:44,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:22:44,371 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 18:22:44,378 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 18:22:44,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 18:22:44,434 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 18:22:44,435 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 18:22:44,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 18:22:44,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 18:22:44,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 18:22:44,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 18:22:44,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 18:22:44,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 18:22:44,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 18:22:44,506 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 18:22:44,509 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 18:22:44,681 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-09-12 18:22:44,681 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 18:22:44,710 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 18:22:44,710 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-12 18:22:44,711 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:22:44 BoogieIcfgContainer [2024-09-12 18:22:44,711 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 18:22:44,715 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 18:22:44,715 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 18:22:44,718 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 18:22:44,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 06:22:43" (1/3) ... [2024-09-12 18:22:44,720 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ce58818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:22:44, skipping insertion in model container [2024-09-12 18:22:44,721 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:22:44" (2/3) ... [2024-09-12 18:22:44,721 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ce58818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:22:44, skipping insertion in model container [2024-09-12 18:22:44,721 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:22:44" (3/3) ... [2024-09-12 18:22:44,723 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark23_conjunctive.i [2024-09-12 18:22:44,745 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 18:22:44,745 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-09-12 18:22:44,816 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 18:22:44,825 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;@28fb0078, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 18:22:44,825 INFO L337 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-09-12 18:22:44,830 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 15 states have (on average 1.6) internal successors, (24), 20 states have internal predecessors, (24), 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 18:22:44,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-09-12 18:22:44,837 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:22:44,838 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:22:44,839 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:22:44,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:44,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1958352589, now seen corresponding path program 1 times [2024-09-12 18:22:44,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:22:44,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030286333] [2024-09-12 18:22:44,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:22:44,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:22:44,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:45,055 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:22:45,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:45,068 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 18:22:45,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:22:45,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030286333] [2024-09-12 18:22:45,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030286333] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:22:45,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:22:45,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:22:45,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887684157] [2024-09-12 18:22:45,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:22:45,077 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:22:45,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:22:45,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:22:45,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:22:45,104 INFO L87 Difference]: Start difference. First operand has 27 states, 15 states have (on average 1.6) internal successors, (24), 20 states have internal predecessors, (24), 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 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:22:45,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:22:45,158 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2024-09-12 18:22:45,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:22:45,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 8 [2024-09-12 18:22:45,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:22:45,171 INFO L225 Difference]: With dead ends: 41 [2024-09-12 18:22:45,172 INFO L226 Difference]: Without dead ends: 19 [2024-09-12 18:22:45,175 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 18:22:45,178 INFO L434 NwaCegarLoop]: 23 mSDtfsCounter, 8 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:22:45,179 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 36 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:22:45,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-09-12 18:22:45,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-09-12 18:22:45,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 14 states have internal predecessors, (15), 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 18:22:45,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2024-09-12 18:22:45,215 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 8 [2024-09-12 18:22:45,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:22:45,215 INFO L474 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2024-09-12 18:22:45,223 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:22:45,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:45,225 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2024-09-12 18:22:45,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-09-12 18:22:45,225 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:22:45,225 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:22:45,226 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 18:22:45,226 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:22:45,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:45,227 INFO L85 PathProgramCache]: Analyzing trace with hash 579388167, now seen corresponding path program 1 times [2024-09-12 18:22:45,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:22:45,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876524841] [2024-09-12 18:22:45,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:22:45,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:22:45,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:45,281 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:22:45,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:45,288 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 18:22:45,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:22:45,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876524841] [2024-09-12 18:22:45,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876524841] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:22:45,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:22:45,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:22:45,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097035623] [2024-09-12 18:22:45,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:22:45,291 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:22:45,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:22:45,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:22:45,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:22:45,295 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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 18:22:45,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:22:45,327 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2024-09-12 18:22:45,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:22:45,328 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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 18:22:45,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:22:45,333 INFO L225 Difference]: With dead ends: 24 [2024-09-12 18:22:45,333 INFO L226 Difference]: Without dead ends: 23 [2024-09-12 18:22:45,333 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 18:22:45,337 INFO L434 NwaCegarLoop]: 16 mSDtfsCounter, 1 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:22:45,338 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 29 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:22:45,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-09-12 18:22:45,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2024-09-12 18:22:45,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 17 states have internal predecessors, (19), 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 18:22:45,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2024-09-12 18:22:45,356 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 9 [2024-09-12 18:22:45,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:22:45,356 INFO L474 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2024-09-12 18:22:45,356 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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 18:22:45,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:45,357 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2024-09-12 18:22:45,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-09-12 18:22:45,357 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:22:45,357 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:22:45,357 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 18:22:45,358 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 18:22:45,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:45,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1554749993, now seen corresponding path program 1 times [2024-09-12 18:22:45,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:22:45,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272728820] [2024-09-12 18:22:45,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:22:45,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:22:45,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:45,424 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:22:45,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:45,433 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 18:22:45,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:22:45,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272728820] [2024-09-12 18:22:45,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272728820] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:22:45,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:22:45,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:22:45,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876790533] [2024-09-12 18:22:45,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:22:45,439 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:22:45,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:22:45,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:22:45,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:22:45,440 INFO L87 Difference]: Start difference. First operand 22 states and 23 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 18:22:45,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:22:45,468 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2024-09-12 18:22:45,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:22:45,474 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 18:22:45,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:22:45,475 INFO L225 Difference]: With dead ends: 27 [2024-09-12 18:22:45,475 INFO L226 Difference]: Without dead ends: 22 [2024-09-12 18:22:45,475 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 18:22:45,477 INFO L434 NwaCegarLoop]: 16 mSDtfsCounter, 2 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:22:45,478 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 28 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:22:45,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-09-12 18:22:45,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2024-09-12 18:22:45,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 17 states have internal predecessors, (18), 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 18:22:45,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2024-09-12 18:22:45,492 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 11 [2024-09-12 18:22:45,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:22:45,493 INFO L474 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2024-09-12 18:22:45,493 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 18:22:45,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:45,496 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2024-09-12 18:22:45,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-09-12 18:22:45,497 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:22:45,497 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:22:45,497 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-12 18:22:45,498 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:22:45,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:45,498 INFO L85 PathProgramCache]: Analyzing trace with hash 781164047, now seen corresponding path program 1 times [2024-09-12 18:22:45,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:22:45,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426544898] [2024-09-12 18:22:45,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:22:45,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:22:45,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:45,569 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:22:45,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:45,579 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 18:22:45,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:22:45,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426544898] [2024-09-12 18:22:45,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426544898] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:22:45,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:22:45,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:22:45,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122764416] [2024-09-12 18:22:45,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:22:45,581 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:22:45,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:22:45,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:22:45,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:22:45,583 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:22:45,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:22:45,626 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2024-09-12 18:22:45,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:22:45,627 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2024-09-12 18:22:45,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:22:45,628 INFO L225 Difference]: With dead ends: 22 [2024-09-12 18:22:45,628 INFO L226 Difference]: Without dead ends: 21 [2024-09-12 18:22:45,629 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:22:45,630 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 2 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:22:45,630 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 29 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:22:45,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-09-12 18:22:45,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-09-12 18:22:45,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 16 states have internal predecessors, (17), 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 18:22:45,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2024-09-12 18:22:45,643 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 10 [2024-09-12 18:22:45,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:22:45,643 INFO L474 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2024-09-12 18:22:45,644 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:22:45,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:45,644 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2024-09-12 18:22:45,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-09-12 18:22:45,646 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:22:45,646 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:22:45,646 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-12 18:22:45,646 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:22:45,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:45,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1553718263, now seen corresponding path program 1 times [2024-09-12 18:22:45,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:22:45,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80189958] [2024-09-12 18:22:45,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:22:45,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:22:45,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:45,707 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:22:45,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:45,717 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 18:22:45,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:22:45,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80189958] [2024-09-12 18:22:45,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80189958] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:22:45,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:22:45,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:22:45,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692021859] [2024-09-12 18:22:45,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:22:45,720 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:22:45,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:22:45,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:22:45,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:22:45,722 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:22:45,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:22:45,759 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2024-09-12 18:22:45,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:22:45,760 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-09-12 18:22:45,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:22:45,760 INFO L225 Difference]: With dead ends: 24 [2024-09-12 18:22:45,761 INFO L226 Difference]: Without dead ends: 23 [2024-09-12 18:22:45,761 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:22:45,762 INFO L434 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:22:45,762 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:22:45,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-09-12 18:22:45,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-09-12 18:22:45,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 16 states have (on average 1.1875) internal successors, (19), 18 states have internal predecessors, (19), 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 18:22:45,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2024-09-12 18:22:45,774 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 11 [2024-09-12 18:22:45,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:22:45,775 INFO L474 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2024-09-12 18:22:45,775 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:22:45,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:45,775 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2024-09-12 18:22:45,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-09-12 18:22:45,776 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:22:45,778 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:22:45,779 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-09-12 18:22:45,779 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:22:45,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:45,781 INFO L85 PathProgramCache]: Analyzing trace with hash 41823689, now seen corresponding path program 1 times [2024-09-12 18:22:45,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:22:45,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760112866] [2024-09-12 18:22:45,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:22:45,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:22:45,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:45,825 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:22:45,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:45,830 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 18:22:45,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:22:45,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760112866] [2024-09-12 18:22:45,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760112866] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:22:45,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2032605493] [2024-09-12 18:22:45,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:22:45,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:22:45,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:22:45,834 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 18:22:45,836 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 18:22:45,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:45,875 INFO L262 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:22:45,879 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:22:45,918 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 18:22:45,918 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:22:45,960 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 18:22:45,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2032605493] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:22:45,961 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:22:45,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-09-12 18:22:45,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211919699] [2024-09-12 18:22:45,962 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:22:45,962 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:22:45,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:22:45,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:22:45,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:22:45,964 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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 18:22:45,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:22:45,996 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2024-09-12 18:22:45,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:22:45,997 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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 18:22:45,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:22:45,998 INFO L225 Difference]: With dead ends: 42 [2024-09-12 18:22:45,998 INFO L226 Difference]: Without dead ends: 41 [2024-09-12 18:22:45,999 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:22:45,999 INFO L434 NwaCegarLoop]: 15 mSDtfsCounter, 8 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:22:46,000 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 49 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:22:46,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-09-12 18:22:46,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 36. [2024-09-12 18:22:46,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 31 states have internal predecessors, (37), 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 18:22:46,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2024-09-12 18:22:46,009 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 14 [2024-09-12 18:22:46,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:22:46,009 INFO L474 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2024-09-12 18:22:46,010 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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 18:22:46,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:46,010 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2024-09-12 18:22:46,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-09-12 18:22:46,011 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:22:46,011 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:22:46,028 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-09-12 18:22:46,215 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 18:22:46,216 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:22:46,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:46,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1536829465, now seen corresponding path program 1 times [2024-09-12 18:22:46,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:22:46,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802360746] [2024-09-12 18:22:46,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:22:46,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:22:46,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:46,294 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:22:46,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:46,299 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:46,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:22:46,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802360746] [2024-09-12 18:22:46,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802360746] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:22:46,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091954441] [2024-09-12 18:22:46,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:22:46,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:22:46,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:22:46,303 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 18:22:46,305 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 18:22:46,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:46,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:22:46,344 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:22:46,360 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:46,361 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:22:46,410 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:46,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2091954441] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:22:46,414 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:22:46,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-09-12 18:22:46,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462484561] [2024-09-12 18:22:46,415 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:22:46,415 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:22:46,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:22:46,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:22:46,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:22:46,416 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 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 18:22:46,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:22:46,475 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2024-09-12 18:22:46,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:22:46,481 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 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 18:22:46,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:22:46,482 INFO L225 Difference]: With dead ends: 42 [2024-09-12 18:22:46,482 INFO L226 Difference]: Without dead ends: 36 [2024-09-12 18:22:46,483 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:22:46,484 INFO L434 NwaCegarLoop]: 13 mSDtfsCounter, 5 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:22:46,484 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 56 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:22:46,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-09-12 18:22:46,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-09-12 18:22:46,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 31 states have internal predecessors, (34), 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 18:22:46,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2024-09-12 18:22:46,496 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 16 [2024-09-12 18:22:46,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:22:46,497 INFO L474 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2024-09-12 18:22:46,497 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 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 18:22:46,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:46,497 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2024-09-12 18:22:46,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-09-12 18:22:46,498 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:22:46,498 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:22:46,512 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-12 18:22:46,699 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-09-12 18:22:46,699 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:22:46,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:46,700 INFO L85 PathProgramCache]: Analyzing trace with hash -2092090039, now seen corresponding path program 1 times [2024-09-12 18:22:46,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:22:46,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433510123] [2024-09-12 18:22:46,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:22:46,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:22:46,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:46,757 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:22:46,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:46,768 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-09-12 18:22:46,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:22:46,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433510123] [2024-09-12 18:22:46,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433510123] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:22:46,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:22:46,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:22:46,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187026038] [2024-09-12 18:22:46,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:22:46,769 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:22:46,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:22:46,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:22:46,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:22:46,774 INFO L87 Difference]: Start difference. First operand 36 states and 38 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:22:46,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:22:46,816 INFO L93 Difference]: Finished difference Result 36 states and 38 transitions. [2024-09-12 18:22:46,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:22:46,817 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2024-09-12 18:22:46,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:22:46,818 INFO L225 Difference]: With dead ends: 36 [2024-09-12 18:22:46,818 INFO L226 Difference]: Without dead ends: 35 [2024-09-12 18:22:46,818 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:22:46,819 INFO L434 NwaCegarLoop]: 12 mSDtfsCounter, 1 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:22:46,819 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 31 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:22:46,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-09-12 18:22:46,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-09-12 18:22:46,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 29 states have (on average 1.103448275862069) internal successors, (32), 30 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 18:22:46,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2024-09-12 18:22:46,840 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 21 [2024-09-12 18:22:46,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:22:46,840 INFO L474 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2024-09-12 18:22:46,841 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:22:46,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:46,841 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2024-09-12 18:22:46,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-09-12 18:22:46,843 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:22:46,843 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:22:46,843 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-09-12 18:22:46,844 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:22:46,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:46,844 INFO L85 PathProgramCache]: Analyzing trace with hash 464443097, now seen corresponding path program 2 times [2024-09-12 18:22:46,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:22:46,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168418413] [2024-09-12 18:22:46,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:22:46,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:22:46,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:47,000 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:22:47,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:47,006 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:47,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:22:47,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168418413] [2024-09-12 18:22:47,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168418413] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:22:47,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [944140961] [2024-09-12 18:22:47,007 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:22:47,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:22:47,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:22:47,010 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 18:22:47,011 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 18:22:47,064 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:22:47,065 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:22:47,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:22:47,067 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:22:47,126 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:47,128 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:22:47,302 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:47,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [944140961] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:22:47,303 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:22:47,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-09-12 18:22:47,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177173489] [2024-09-12 18:22:47,304 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:22:47,304 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 18:22:47,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:22:47,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 18:22:47,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:22:47,306 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 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 18:22:47,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:22:47,415 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions. [2024-09-12 18:22:47,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:22:47,415 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 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 26 [2024-09-12 18:22:47,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:22:47,417 INFO L225 Difference]: With dead ends: 55 [2024-09-12 18:22:47,417 INFO L226 Difference]: Without dead ends: 50 [2024-09-12 18:22:47,418 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:22:47,420 INFO L434 NwaCegarLoop]: 12 mSDtfsCounter, 8 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:22:47,420 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 88 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:22:47,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-09-12 18:22:47,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2024-09-12 18:22:47,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 42 states have (on average 1.0952380952380953) internal successors, (46), 43 states have internal predecessors, (46), 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 18:22:47,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 50 transitions. [2024-09-12 18:22:47,438 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 50 transitions. Word has length 26 [2024-09-12 18:22:47,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:22:47,439 INFO L474 AbstractCegarLoop]: Abstraction has 48 states and 50 transitions. [2024-09-12 18:22:47,439 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 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 18:22:47,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:47,440 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 50 transitions. [2024-09-12 18:22:47,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-09-12 18:22:47,441 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:22:47,441 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:22:47,459 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 18:22:47,644 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 18:22:47,645 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:22:47,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:47,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1488779897, now seen corresponding path program 2 times [2024-09-12 18:22:47,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:22:47,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545530066] [2024-09-12 18:22:47,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:22:47,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:22:47,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:47,720 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:22:47,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:47,724 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:47,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:22:47,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545530066] [2024-09-12 18:22:47,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545530066] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:22:47,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [170137611] [2024-09-12 18:22:47,724 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:22:47,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:22:47,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:22:47,727 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 18:22:47,728 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 18:22:47,774 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:22:47,774 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:22:47,775 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:22:47,776 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:22:47,813 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:47,814 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:22:47,910 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:47,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [170137611] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:22:47,911 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:22:47,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-09-12 18:22:47,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274689108] [2024-09-12 18:22:47,911 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:22:47,911 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:22:47,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:22:47,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:22:47,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:22:47,912 INFO L87 Difference]: Start difference. First operand 48 states and 50 transitions. Second operand has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 12 states have internal predecessors, (50), 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 18:22:47,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:22:47,966 INFO L93 Difference]: Finished difference Result 69 states and 77 transitions. [2024-09-12 18:22:47,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:22:47,967 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 12 states have internal predecessors, (50), 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 29 [2024-09-12 18:22:47,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:22:47,968 INFO L225 Difference]: With dead ends: 69 [2024-09-12 18:22:47,968 INFO L226 Difference]: Without dead ends: 68 [2024-09-12 18:22:47,969 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:22:47,969 INFO L434 NwaCegarLoop]: 14 mSDtfsCounter, 6 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:22:47,970 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 79 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:22:47,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-09-12 18:22:47,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 65. [2024-09-12 18:22:47,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 59 states have (on average 1.0847457627118644) internal successors, (64), 60 states have internal predecessors, (64), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:22:47,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 68 transitions. [2024-09-12 18:22:47,983 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 68 transitions. Word has length 29 [2024-09-12 18:22:47,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:22:47,983 INFO L474 AbstractCegarLoop]: Abstraction has 65 states and 68 transitions. [2024-09-12 18:22:47,983 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 12 states have internal predecessors, (50), 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 18:22:47,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:47,984 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 68 transitions. [2024-09-12 18:22:47,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-09-12 18:22:47,985 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:22:47,985 INFO L216 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:22:47,998 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 18:22:48,185 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 18:22:48,186 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:22:48,186 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:48,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1198646361, now seen corresponding path program 3 times [2024-09-12 18:22:48,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:22:48,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069583797] [2024-09-12 18:22:48,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:22:48,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:22:48,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:48,424 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:22:48,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:48,428 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:48,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:22:48,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069583797] [2024-09-12 18:22:48,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069583797] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:22:48,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2131177022] [2024-09-12 18:22:48,429 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:22:48,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:22:48,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:22:48,431 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 18:22:48,432 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 18:22:48,483 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-09-12 18:22:48,483 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:22:48,484 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 18:22:48,492 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:22:48,564 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:48,564 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:22:48,907 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:48,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2131177022] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:22:48,907 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:22:48,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 32 [2024-09-12 18:22:48,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416679394] [2024-09-12 18:22:48,908 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:22:48,908 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-09-12 18:22:48,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:22:48,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-09-12 18:22:48,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=720, Unknown=0, NotChecked=0, Total=992 [2024-09-12 18:22:48,910 INFO L87 Difference]: Start difference. First operand 65 states and 68 transitions. Second operand has 32 states, 32 states have (on average 2.46875) internal successors, (79), 32 states have internal predecessors, (79), 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 18:22:49,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:22:49,036 INFO L93 Difference]: Finished difference Result 97 states and 104 transitions. [2024-09-12 18:22:49,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-09-12 18:22:49,037 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 2.46875) internal successors, (79), 32 states have internal predecessors, (79), 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 46 [2024-09-12 18:22:49,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:22:49,038 INFO L225 Difference]: With dead ends: 97 [2024-09-12 18:22:49,038 INFO L226 Difference]: Without dead ends: 92 [2024-09-12 18:22:49,038 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=272, Invalid=720, Unknown=0, NotChecked=0, Total=992 [2024-09-12 18:22:49,039 INFO L434 NwaCegarLoop]: 12 mSDtfsCounter, 14 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:22:49,039 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 90 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:22:49,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-09-12 18:22:49,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 88. [2024-09-12 18:22:49,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 82 states have (on average 1.0731707317073171) internal successors, (88), 83 states have internal predecessors, (88), 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 18:22:49,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 92 transitions. [2024-09-12 18:22:49,064 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 92 transitions. Word has length 46 [2024-09-12 18:22:49,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:22:49,064 INFO L474 AbstractCegarLoop]: Abstraction has 88 states and 92 transitions. [2024-09-12 18:22:49,064 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 2.46875) internal successors, (79), 32 states have internal predecessors, (79), 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 18:22:49,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:49,065 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 92 transitions. [2024-09-12 18:22:49,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-09-12 18:22:49,066 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:22:49,066 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:22:49,082 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-09-12 18:22:49,266 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 18:22:49,267 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:22:49,267 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:49,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1213149511, now seen corresponding path program 3 times [2024-09-12 18:22:49,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:22:49,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235648421] [2024-09-12 18:22:49,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:22:49,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:22:49,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:49,444 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:22:49,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:49,447 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:49,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:22:49,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235648421] [2024-09-12 18:22:49,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235648421] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:22:49,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218226463] [2024-09-12 18:22:49,448 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:22:49,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:22:49,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:22:49,450 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 18:22:49,451 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 18:22:49,509 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-09-12 18:22:49,509 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:22:49,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 18:22:49,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:22:49,600 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:49,600 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:22:49,856 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:49,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218226463] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:22:49,857 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:22:49,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2024-09-12 18:22:49,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272054091] [2024-09-12 18:22:49,857 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:22:49,858 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-12 18:22:49,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:22:49,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-12 18:22:49,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2024-09-12 18:22:49,859 INFO L87 Difference]: Start difference. First operand 88 states and 92 transitions. Second operand has 24 states, 23 states have (on average 4.782608695652174) internal successors, (110), 24 states have internal predecessors, (110), 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 18:22:49,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:22:49,958 INFO L93 Difference]: Finished difference Result 133 states and 151 transitions. [2024-09-12 18:22:49,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-09-12 18:22:49,959 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.782608695652174) internal successors, (110), 24 states have internal predecessors, (110), 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 59 [2024-09-12 18:22:49,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:22:49,960 INFO L225 Difference]: With dead ends: 133 [2024-09-12 18:22:49,960 INFO L226 Difference]: Without dead ends: 132 [2024-09-12 18:22:49,961 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2024-09-12 18:22:49,961 INFO L434 NwaCegarLoop]: 14 mSDtfsCounter, 16 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:22:49,962 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 117 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:22:49,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-09-12 18:22:49,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 125. [2024-09-12 18:22:49,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 119 states have (on average 1.0756302521008403) internal successors, (128), 120 states have internal predecessors, (128), 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 18:22:49,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 132 transitions. [2024-09-12 18:22:49,980 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 132 transitions. Word has length 59 [2024-09-12 18:22:49,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:22:49,980 INFO L474 AbstractCegarLoop]: Abstraction has 125 states and 132 transitions. [2024-09-12 18:22:49,981 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.782608695652174) internal successors, (110), 24 states have internal predecessors, (110), 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 18:22:49,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:49,981 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 132 transitions. [2024-09-12 18:22:49,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-09-12 18:22:49,986 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:22:49,986 INFO L216 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:22:50,004 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-09-12 18:22:50,186 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 18:22:50,187 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:22:50,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:50,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1672396633, now seen corresponding path program 4 times [2024-09-12 18:22:50,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:22:50,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984975342] [2024-09-12 18:22:50,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:22:50,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:22:50,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:50,989 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:22:50,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:50,993 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:50,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:22:50,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984975342] [2024-09-12 18:22:50,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984975342] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:22:50,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [273253549] [2024-09-12 18:22:50,994 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 18:22:50,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:22:50,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:22:50,996 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 18:22:50,998 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 18:22:51,051 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 18:22:51,052 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:22:51,053 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-09-12 18:22:51,055 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:22:51,171 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:51,171 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:22:52,175 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:52,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [273253549] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:22:52,176 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:22:52,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 64 [2024-09-12 18:22:52,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724771744] [2024-09-12 18:22:52,177 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:22:52,177 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2024-09-12 18:22:52,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:22:52,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2024-09-12 18:22:52,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1056, Invalid=2976, Unknown=0, NotChecked=0, Total=4032 [2024-09-12 18:22:52,181 INFO L87 Difference]: Start difference. First operand 125 states and 132 transitions. Second operand has 64 states, 64 states have (on average 2.484375) internal successors, (159), 64 states have internal predecessors, (159), 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 18:22:52,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:22:52,390 INFO L93 Difference]: Finished difference Result 181 states and 196 transitions. [2024-09-12 18:22:52,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-09-12 18:22:52,390 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 2.484375) internal successors, (159), 64 states have internal predecessors, (159), 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 86 [2024-09-12 18:22:52,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:22:52,392 INFO L225 Difference]: With dead ends: 181 [2024-09-12 18:22:52,392 INFO L226 Difference]: Without dead ends: 176 [2024-09-12 18:22:52,393 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1109 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1056, Invalid=2976, Unknown=0, NotChecked=0, Total=4032 [2024-09-12 18:22:52,394 INFO L434 NwaCegarLoop]: 12 mSDtfsCounter, 23 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:22:52,394 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 100 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:22:52,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-09-12 18:22:52,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 168. [2024-09-12 18:22:52,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 162 states have (on average 1.0617283950617284) internal successors, (172), 163 states have internal predecessors, (172), 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 18:22:52,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 176 transitions. [2024-09-12 18:22:52,414 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 176 transitions. Word has length 86 [2024-09-12 18:22:52,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:22:52,415 INFO L474 AbstractCegarLoop]: Abstraction has 168 states and 176 transitions. [2024-09-12 18:22:52,415 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 2.484375) internal successors, (159), 64 states have internal predecessors, (159), 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 18:22:52,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:52,415 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 176 transitions. [2024-09-12 18:22:52,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-09-12 18:22:52,417 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:22:52,417 INFO L216 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:22:52,435 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-09-12 18:22:52,621 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 18:22:52,622 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:22:52,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:52,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1781638969, now seen corresponding path program 4 times [2024-09-12 18:22:52,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:22:52,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760114474] [2024-09-12 18:22:52,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:22:52,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:22:52,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:53,182 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:22:53,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:53,186 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:53,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:22:53,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760114474] [2024-09-12 18:22:53,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760114474] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:22:53,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [968686172] [2024-09-12 18:22:53,187 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 18:22:53,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:22:53,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:22:53,189 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:22:53,199 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-12 18:22:53,271 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 18:22:53,271 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:22:53,273 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-12 18:22:53,277 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:22:53,426 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:53,427 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:22:54,191 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:54,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [968686172] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:22:54,192 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:22:54,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2024-09-12 18:22:54,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497551573] [2024-09-12 18:22:54,192 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:22:54,193 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-09-12 18:22:54,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:22:54,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-09-12 18:22:54,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2024-09-12 18:22:54,195 INFO L87 Difference]: Start difference. First operand 168 states and 176 transitions. Second operand has 48 states, 47 states have (on average 4.8936170212765955) internal successors, (230), 48 states have internal predecessors, (230), 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 18:22:54,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:22:54,394 INFO L93 Difference]: Finished difference Result 261 states and 299 transitions. [2024-09-12 18:22:54,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-09-12 18:22:54,395 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 4.8936170212765955) internal successors, (230), 48 states have internal predecessors, (230), 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 119 [2024-09-12 18:22:54,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:22:54,397 INFO L225 Difference]: With dead ends: 261 [2024-09-12 18:22:54,397 INFO L226 Difference]: Without dead ends: 260 [2024-09-12 18:22:54,398 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2024-09-12 18:22:54,401 INFO L434 NwaCegarLoop]: 14 mSDtfsCounter, 28 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:22:54,401 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 221 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:22:54,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2024-09-12 18:22:54,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 245. [2024-09-12 18:22:54,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 239 states have (on average 1.0711297071129706) internal successors, (256), 240 states have internal predecessors, (256), 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 18:22:54,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 260 transitions. [2024-09-12 18:22:54,437 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 260 transitions. Word has length 119 [2024-09-12 18:22:54,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:22:54,437 INFO L474 AbstractCegarLoop]: Abstraction has 245 states and 260 transitions. [2024-09-12 18:22:54,438 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 4.8936170212765955) internal successors, (230), 48 states have internal predecessors, (230), 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 18:22:54,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:54,439 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 260 transitions. [2024-09-12 18:22:54,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-09-12 18:22:54,444 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:22:54,444 INFO L216 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:22:54,464 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-09-12 18:22:54,648 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:22:54,649 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:22:54,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:22:54,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1451002535, now seen corresponding path program 5 times [2024-09-12 18:22:54,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:22:54,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785627906] [2024-09-12 18:22:54,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:22:54,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:22:54,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:56,686 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:22:56,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:22:56,690 INFO L134 CoverageAnalysis]: Checked inductivity of 2356 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:56,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:22:56,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785627906] [2024-09-12 18:22:56,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785627906] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:22:56,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [108732314] [2024-09-12 18:22:56,691 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 18:22:56,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:22:56,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:22:56,693 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:22:56,695 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-12 18:22:56,807 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2024-09-12 18:22:56,808 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:22:56,811 INFO L262 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 64 conjuncts are in the unsatisfiable core [2024-09-12 18:22:56,818 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:22:57,025 INFO L134 CoverageAnalysis]: Checked inductivity of 2356 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:57,026 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:22:59,915 INFO L134 CoverageAnalysis]: Checked inductivity of 2356 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:22:59,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [108732314] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:22:59,915 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:22:59,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 128 [2024-09-12 18:22:59,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467578557] [2024-09-12 18:22:59,916 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:22:59,916 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 128 states [2024-09-12 18:22:59,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:22:59,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2024-09-12 18:22:59,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4160, Invalid=12096, Unknown=0, NotChecked=0, Total=16256 [2024-09-12 18:22:59,925 INFO L87 Difference]: Start difference. First operand 245 states and 260 transitions. Second operand has 128 states, 128 states have (on average 2.4921875) internal successors, (319), 128 states have internal predecessors, (319), 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 18:23:00,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:23:00,320 INFO L93 Difference]: Finished difference Result 349 states and 380 transitions. [2024-09-12 18:23:00,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2024-09-12 18:23:00,321 INFO L78 Accepts]: Start accepts. Automaton has has 128 states, 128 states have (on average 2.4921875) internal successors, (319), 128 states have internal predecessors, (319), 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 166 [2024-09-12 18:23:00,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:23:00,323 INFO L225 Difference]: With dead ends: 349 [2024-09-12 18:23:00,323 INFO L226 Difference]: Without dead ends: 344 [2024-09-12 18:23:00,327 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4773 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=4160, Invalid=12096, Unknown=0, NotChecked=0, Total=16256 [2024-09-12 18:23:00,328 INFO L434 NwaCegarLoop]: 12 mSDtfsCounter, 43 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:23:00,328 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 181 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:23:00,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-09-12 18:23:00,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 328. [2024-09-12 18:23:00,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 322 states have (on average 1.0559006211180124) internal successors, (340), 323 states have internal predecessors, (340), 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 18:23:00,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 344 transitions. [2024-09-12 18:23:00,357 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 344 transitions. Word has length 166 [2024-09-12 18:23:00,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:23:00,358 INFO L474 AbstractCegarLoop]: Abstraction has 328 states and 344 transitions. [2024-09-12 18:23:00,358 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 128 states, 128 states have (on average 2.4921875) internal successors, (319), 128 states have internal predecessors, (319), 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 18:23:00,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:23:00,359 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 344 transitions. [2024-09-12 18:23:00,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2024-09-12 18:23:00,360 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:23:00,361 INFO L216 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:23:00,377 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-09-12 18:23:00,561 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-12 18:23:00,562 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:23:00,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:23:00,562 INFO L85 PathProgramCache]: Analyzing trace with hash -67639353, now seen corresponding path program 5 times [2024-09-12 18:23:00,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:23:00,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461100104] [2024-09-12 18:23:00,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:23:00,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:23:00,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:23:02,151 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:23:02,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:23:02,155 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:23:02,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:23:02,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461100104] [2024-09-12 18:23:02,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461100104] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:23:02,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2085930911] [2024-09-12 18:23:02,155 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 18:23:02,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:23:02,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:23:02,157 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:23:02,157 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-12 18:23:02,292 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2024-09-12 18:23:02,292 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:23:02,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-09-12 18:23:02,298 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:23:02,554 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:23:02,554 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:23:04,910 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:23:04,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2085930911] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:23:04,910 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:23:04,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2024-09-12 18:23:04,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825189959] [2024-09-12 18:23:04,910 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:23:04,911 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2024-09-12 18:23:04,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:23:04,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2024-09-12 18:23:04,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2024-09-12 18:23:04,916 INFO L87 Difference]: Start difference. First operand 328 states and 344 transitions. Second operand has 96 states, 95 states have (on average 4.947368421052632) internal successors, (470), 96 states have internal predecessors, (470), 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 18:23:05,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:23:05,261 INFO L93 Difference]: Finished difference Result 517 states and 595 transitions. [2024-09-12 18:23:05,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-09-12 18:23:05,262 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 4.947368421052632) internal successors, (470), 96 states have internal predecessors, (470), 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 239 [2024-09-12 18:23:05,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:23:05,265 INFO L225 Difference]: With dead ends: 517 [2024-09-12 18:23:05,265 INFO L226 Difference]: Without dead ends: 516 [2024-09-12 18:23:05,268 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 527 GetRequests, 433 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2024-09-12 18:23:05,269 INFO L434 NwaCegarLoop]: 14 mSDtfsCounter, 81 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:23:05,269 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 379 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:23:05,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2024-09-12 18:23:05,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 485. [2024-09-12 18:23:05,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 479 states have (on average 1.068893528183716) internal successors, (512), 480 states have internal predecessors, (512), 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 18:23:05,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 516 transitions. [2024-09-12 18:23:05,307 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 516 transitions. Word has length 239 [2024-09-12 18:23:05,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:23:05,308 INFO L474 AbstractCegarLoop]: Abstraction has 485 states and 516 transitions. [2024-09-12 18:23:05,308 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 4.947368421052632) internal successors, (470), 96 states have internal predecessors, (470), 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 18:23:05,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:23:05,309 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 516 transitions. [2024-09-12 18:23:05,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2024-09-12 18:23:05,312 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:23:05,312 INFO L216 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:23:05,330 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-09-12 18:23:05,513 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-12 18:23:05,513 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:23:05,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:23:05,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1097277095, now seen corresponding path program 6 times [2024-09-12 18:23:05,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:23:05,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300037124] [2024-09-12 18:23:05,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:23:05,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:23:05,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:23:12,344 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:23:12,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:23:12,351 INFO L134 CoverageAnalysis]: Checked inductivity of 9828 backedges. 0 proven. 9828 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:23:12,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:23:12,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300037124] [2024-09-12 18:23:12,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300037124] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:23:12,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2096472452] [2024-09-12 18:23:12,352 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 18:23:12,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:23:12,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:23:12,354 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:23:12,355 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-12 18:23:12,526 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 64 check-sat command(s) [2024-09-12 18:23:12,526 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:23:12,532 INFO L262 TraceCheckSpWp]: Trace formula consists of 735 conjuncts, 128 conjuncts are in the unsatisfiable core [2024-09-12 18:23:12,538 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:23:12,858 INFO L134 CoverageAnalysis]: Checked inductivity of 9828 backedges. 0 proven. 9828 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:23:12,858 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:23:21,107 INFO L134 CoverageAnalysis]: Checked inductivity of 9828 backedges. 0 proven. 9828 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:23:21,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2096472452] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:23:21,108 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:23:21,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [129, 129, 129] total 201 [2024-09-12 18:23:21,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30804121] [2024-09-12 18:23:21,108 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:23:21,109 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 201 states [2024-09-12 18:23:21,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:23:21,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 201 interpolants. [2024-09-12 18:23:21,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10200, Invalid=30000, Unknown=0, NotChecked=0, Total=40200 [2024-09-12 18:23:21,116 INFO L87 Difference]: Start difference. First operand 485 states and 516 transitions. Second operand has 201 states, 201 states have (on average 2.5074626865671643) internal successors, (504), 201 states have internal predecessors, (504), 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 18:23:21,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:23:21,746 INFO L93 Difference]: Finished difference Result 523 states and 559 transitions. [2024-09-12 18:23:21,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 201 states. [2024-09-12 18:23:21,746 INFO L78 Accepts]: Start accepts. Automaton has has 201 states, 201 states have (on average 2.5074626865671643) internal successors, (504), 201 states have internal predecessors, (504), 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 326 [2024-09-12 18:23:21,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:23:21,750 INFO L225 Difference]: With dead ends: 523 [2024-09-12 18:23:21,750 INFO L226 Difference]: Without dead ends: 518 [2024-09-12 18:23:21,753 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 782 GetRequests, 528 SyntacticMatches, 55 SemanticMatches, 199 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19053 ImplicationChecksByTransitivity, 11.9s TimeCoverageRelationStatistics Valid=10200, Invalid=30000, Unknown=0, NotChecked=0, Total=40200 [2024-09-12 18:23:21,754 INFO L434 NwaCegarLoop]: 12 mSDtfsCounter, 15 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:23:21,754 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 177 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:23:21,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2024-09-12 18:23:21,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 513. [2024-09-12 18:23:21,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 507 states have (on average 1.0138067061143985) internal successors, (514), 508 states have internal predecessors, (514), 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 18:23:21,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 518 transitions. [2024-09-12 18:23:21,797 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 518 transitions. Word has length 326 [2024-09-12 18:23:21,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:23:21,797 INFO L474 AbstractCegarLoop]: Abstraction has 513 states and 518 transitions. [2024-09-12 18:23:21,798 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 201 states, 201 states have (on average 2.5074626865671643) internal successors, (504), 201 states have internal predecessors, (504), 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 18:23:21,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:23:21,798 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 518 transitions. [2024-09-12 18:23:21,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2024-09-12 18:23:21,805 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:23:21,805 INFO L216 NwaCegarLoop]: trace histogram [95, 95, 94, 94, 94, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:23:21,823 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-09-12 18:23:22,009 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-09-12 18:23:22,010 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:23:22,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:23:22,010 INFO L85 PathProgramCache]: Analyzing trace with hash 427296199, now seen corresponding path program 6 times [2024-09-12 18:23:22,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:23:22,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894704591] [2024-09-12 18:23:22,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:23:22,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:23:22,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:23:27,571 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:23:27,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:23:27,576 INFO L134 CoverageAnalysis]: Checked inductivity of 22137 backedges. 0 proven. 22137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:23:27,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:23:27,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894704591] [2024-09-12 18:23:27,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894704591] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:23:27,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441047520] [2024-09-12 18:23:27,577 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 18:23:27,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:23:27,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:23:27,578 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:23:27,579 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-12 18:23:27,874 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2024-09-12 18:23:27,874 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:23:27,879 INFO L262 TraceCheckSpWp]: Trace formula consists of 1069 conjuncts, 96 conjuncts are in the unsatisfiable core [2024-09-12 18:23:27,884 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:23:28,298 INFO L134 CoverageAnalysis]: Checked inductivity of 22137 backedges. 0 proven. 22137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:23:28,299 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:23:37,154 INFO L134 CoverageAnalysis]: Checked inductivity of 22137 backedges. 0 proven. 22137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:23:37,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1441047520] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:23:37,155 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:23:37,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2024-09-12 18:23:37,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235050214] [2024-09-12 18:23:37,155 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:23:37,157 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2024-09-12 18:23:37,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:23:37,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2024-09-12 18:23:37,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2024-09-12 18:23:37,166 INFO L87 Difference]: Start difference. First operand 513 states and 518 transitions. Second operand has 192 states, 191 states have (on average 4.973821989528796) internal successors, (950), 192 states have internal predecessors, (950), 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 18:23:38,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:23:38,887 INFO L93 Difference]: Finished difference Result 1056 states and 1241 transitions. [2024-09-12 18:23:38,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2024-09-12 18:23:38,888 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 4.973821989528796) internal successors, (950), 192 states have internal predecessors, (950), 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 479 [2024-09-12 18:23:38,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:23:38,894 INFO L225 Difference]: With dead ends: 1056 [2024-09-12 18:23:38,894 INFO L226 Difference]: Without dead ends: 1055 [2024-09-12 18:23:38,896 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1055 GetRequests, 865 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2024-09-12 18:23:38,897 INFO L434 NwaCegarLoop]: 14 mSDtfsCounter, 332 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:23:38,897 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 725 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:23:38,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1055 states. [2024-09-12 18:23:38,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1055 to 965. [2024-09-12 18:23:38,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 959 states have (on average 1.0959332638164756) internal successors, (1051), 960 states have internal predecessors, (1051), 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 18:23:38,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1055 transitions. [2024-09-12 18:23:38,994 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1055 transitions. Word has length 479 [2024-09-12 18:23:38,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:23:38,995 INFO L474 AbstractCegarLoop]: Abstraction has 965 states and 1055 transitions. [2024-09-12 18:23:38,996 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 4.973821989528796) internal successors, (950), 192 states have internal predecessors, (950), 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 18:23:38,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:23:38,996 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1055 transitions. [2024-09-12 18:23:39,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 512 [2024-09-12 18:23:39,005 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:23:39,005 INFO L216 NwaCegarLoop]: trace histogram [100, 100, 100, 100, 100, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:23:39,031 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-09-12 18:23:39,206 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-09-12 18:23:39,207 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:23:39,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:23:39,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1163674711, now seen corresponding path program 7 times [2024-09-12 18:23:39,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:23:39,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574138697] [2024-09-12 18:23:39,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:23:39,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:23:39,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:23:45,791 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:23:45,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:23:45,797 INFO L134 CoverageAnalysis]: Checked inductivity of 24850 backedges. 0 proven. 24850 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:23:45,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:23:45,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574138697] [2024-09-12 18:23:45,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574138697] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:23:45,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662764015] [2024-09-12 18:23:45,798 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 18:23:45,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:23:45,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:23:45,799 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:23:45,801 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-12 18:23:46,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:23:46,015 INFO L262 TraceCheckSpWp]: Trace formula consists of 1142 conjuncts, 205 conjuncts are in the unsatisfiable core [2024-09-12 18:23:46,023 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:23:46,742 INFO L134 CoverageAnalysis]: Checked inductivity of 24850 backedges. 0 proven. 24850 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:23:46,743 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:23:47,435 INFO L134 CoverageAnalysis]: Checked inductivity of 24850 backedges. 0 proven. 24850 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:23:47,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [662764015] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:23:47,436 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:23:47,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [105, 105, 105] total 107 [2024-09-12 18:23:47,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447588152] [2024-09-12 18:23:47,436 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:23:47,437 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 107 states [2024-09-12 18:23:47,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:23:47,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2024-09-12 18:23:47,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=11129, Unknown=0, NotChecked=0, Total=11342 [2024-09-12 18:23:47,440 INFO L87 Difference]: Start difference. First operand 965 states and 1055 transitions. Second operand has 107 states, 107 states have (on average 4.757009345794392) internal successors, (509), 105 states have internal predecessors, (509), 2 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 18:23:53,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:23:53,477 INFO L93 Difference]: Finished difference Result 970 states and 1059 transitions. [2024-09-12 18:23:53,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2024-09-12 18:23:53,478 INFO L78 Accepts]: Start accepts. Automaton has has 107 states, 107 states have (on average 4.757009345794392) internal successors, (509), 105 states have internal predecessors, (509), 2 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 511 [2024-09-12 18:23:53,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:23:53,485 INFO L225 Difference]: With dead ends: 970 [2024-09-12 18:23:53,485 INFO L226 Difference]: Without dead ends: 965 [2024-09-12 18:23:53,487 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1129 GetRequests, 1021 SyntacticMatches, 2 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=219, Invalid=11337, Unknown=0, NotChecked=0, Total=11556 [2024-09-12 18:23:53,487 INFO L434 NwaCegarLoop]: 311 mSDtfsCounter, 4 mSDsluCounter, 31737 mSDsCounter, 0 mSdLazyCounter, 21524 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 32048 SdHoareTripleChecker+Invalid, 21524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:23:53,487 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 32048 Invalid, 21524 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 21524 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-09-12 18:23:53,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2024-09-12 18:23:53,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 965. [2024-09-12 18:23:53,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 959 states have (on average 1.094890510948905) internal successors, (1050), 960 states have internal predecessors, (1050), 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 18:23:53,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1054 transitions. [2024-09-12 18:23:53,581 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1054 transitions. Word has length 511 [2024-09-12 18:23:53,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:23:53,583 INFO L474 AbstractCegarLoop]: Abstraction has 965 states and 1054 transitions. [2024-09-12 18:23:53,584 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 107 states, 107 states have (on average 4.757009345794392) internal successors, (509), 105 states have internal predecessors, (509), 2 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 18:23:53,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:23:53,584 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1054 transitions. [2024-09-12 18:23:53,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2024-09-12 18:23:53,587 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:23:53,588 INFO L216 NwaCegarLoop]: trace histogram [101, 101, 101, 101, 101, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:23:53,614 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-09-12 18:23:53,788 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:23:53,789 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 18:23:53,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:23:53,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1808180839, now seen corresponding path program 8 times [2024-09-12 18:23:53,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:23:53,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925514198] [2024-09-12 18:23:53,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:23:53,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:23:53,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:10,140 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:24:10,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:24:10,152 INFO L134 CoverageAnalysis]: Checked inductivity of 25351 backedges. 25351 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:24:10,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:24:10,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925514198] [2024-09-12 18:24:10,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925514198] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:24:10,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:24:10,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [203] imperfect sequences [] total 203 [2024-09-12 18:24:10,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286504077] [2024-09-12 18:24:10,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:24:10,153 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 203 states [2024-09-12 18:24:10,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:24:10,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 203 interpolants. [2024-09-12 18:24:10,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10403, Invalid=30603, Unknown=0, NotChecked=0, Total=41006 [2024-09-12 18:24:10,162 INFO L87 Difference]: Start difference. First operand 965 states and 1054 transitions. Second operand has 203 states, 203 states have (on average 2.522167487684729) internal successors, (512), 203 states have internal predecessors, (512), 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 18:24:13,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:24:13,136 INFO L93 Difference]: Finished difference Result 965 states and 1054 transitions. [2024-09-12 18:24:13,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 203 states. [2024-09-12 18:24:13,137 INFO L78 Accepts]: Start accepts. Automaton has has 203 states, 203 states have (on average 2.522167487684729) internal successors, (512), 203 states have internal predecessors, (512), 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 516 [2024-09-12 18:24:13,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:24:13,139 INFO L225 Difference]: With dead ends: 965 [2024-09-12 18:24:13,139 INFO L226 Difference]: Without dead ends: 0 [2024-09-12 18:24:13,145 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 201 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9900 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=10403, Invalid=30603, Unknown=0, NotChecked=0, Total=41006 [2024-09-12 18:24:13,146 INFO L434 NwaCegarLoop]: 105 mSDtfsCounter, 0 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 4078 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 4078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:24:13,146 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 941 Invalid, 4078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4078 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-09-12 18:24:13,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-12 18:24:13,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-12 18:24:13,147 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 18:24:13,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-12 18:24:13,148 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 516 [2024-09-12 18:24:13,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:24:13,148 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-12 18:24:13,149 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 203 states, 203 states have (on average 2.522167487684729) internal successors, (512), 203 states have internal predecessors, (512), 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 18:24:13,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:24:13,149 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-12 18:24:13,149 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-12 18:24:13,152 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 5 remaining) [2024-09-12 18:24:13,152 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 5 remaining) [2024-09-12 18:24:13,152 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 5 remaining) [2024-09-12 18:24:13,153 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 5 remaining) [2024-09-12 18:24:13,153 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2024-09-12 18:24:13,153 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-09-12 18:24:13,156 INFO L408 BasicCegarLoop]: Path program histogram: [8, 6, 1, 1, 1, 1, 1, 1] [2024-09-12 18:24:13,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-09-12 18:24:18,304 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-12 18:24:18,342 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.09 06:24:18 BoogieIcfgContainer [2024-09-12 18:24:18,342 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-12 18:24:18,343 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-09-12 18:24:18,343 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-09-12 18:24:18,343 INFO L274 PluginConnector]: Witness Printer initialized [2024-09-12 18:24:18,343 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:22:44" (3/4) ... [2024-09-12 18:24:18,346 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-09-12 18:24:18,351 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2024-09-12 18:24:18,352 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2024-09-12 18:24:18,352 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-09-12 18:24:18,354 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-09-12 18:24:18,355 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-09-12 18:24:18,355 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-09-12 18:24:18,355 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-09-12 18:24:18,456 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.graphml [2024-09-12 18:24:18,457 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml [2024-09-12 18:24:18,459 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-09-12 18:24:18,459 INFO L158 Benchmark]: Toolchain (without parser) took 94519.58ms. Allocated memory was 67.1MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 44.3MB in the beginning and 644.0MB in the end (delta: -599.7MB). Peak memory consumption was 748.3MB. Max. memory is 16.1GB. [2024-09-12 18:24:18,460 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 67.1MB. Free memory was 43.3MB in the beginning and 43.2MB in the end (delta: 65.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 18:24:18,460 INFO L158 Benchmark]: CACSL2BoogieTranslator took 246.44ms. Allocated memory is still 67.1MB. Free memory was 44.0MB in the beginning and 33.0MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-12 18:24:18,460 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.28ms. Allocated memory is still 67.1MB. Free memory was 32.8MB in the beginning and 31.9MB in the end (delta: 844.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-12 18:24:18,461 INFO L158 Benchmark]: Boogie Preprocessor took 41.92ms. Allocated memory is still 67.1MB. Free memory was 31.9MB in the beginning and 30.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 18:24:18,461 INFO L158 Benchmark]: RCFGBuilder took 456.04ms. Allocated memory was 67.1MB in the beginning and 86.0MB in the end (delta: 18.9MB). Free memory was 30.2MB in the beginning and 55.2MB in the end (delta: -25.0MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2024-09-12 18:24:18,461 INFO L158 Benchmark]: TraceAbstraction took 93627.50ms. Allocated memory was 86.0MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 54.8MB in the beginning and 648.2MB in the end (delta: -593.4MB). Peak memory consumption was 864.8MB. Max. memory is 16.1GB. [2024-09-12 18:24:18,461 INFO L158 Benchmark]: Witness Printer took 116.09ms. Allocated memory is still 1.4GB. Free memory was 648.2MB in the beginning and 644.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-12 18:24:18,466 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 67.1MB. Free memory was 43.3MB in the beginning and 43.2MB in the end (delta: 65.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 246.44ms. Allocated memory is still 67.1MB. Free memory was 44.0MB in the beginning and 33.0MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.28ms. Allocated memory is still 67.1MB. Free memory was 32.8MB in the beginning and 31.9MB in the end (delta: 844.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.92ms. Allocated memory is still 67.1MB. Free memory was 31.9MB in the beginning and 30.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 456.04ms. Allocated memory was 67.1MB in the beginning and 86.0MB in the end (delta: 18.9MB). Free memory was 30.2MB in the beginning and 55.2MB in the end (delta: -25.0MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. * TraceAbstraction took 93627.50ms. Allocated memory was 86.0MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 54.8MB in the beginning and 648.2MB in the end (delta: -593.4MB). Peak memory consumption was 864.8MB. Max. memory is 16.1GB. * Witness Printer took 116.09ms. Allocated memory is still 1.4GB. Free memory was 648.2MB in the beginning and 644.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 27 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 88.4s, OverallIterations: 20, TraceHistogramMax: 101, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.1s, AutomataDifference: 13.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 598 SdHoareTripleChecker+Valid, 9.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 597 mSDsluCounter, 35439 SdHoareTripleChecker+Invalid, 7.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 34774 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 27575 IncrementalHoareTripleChecker+Invalid, 27591 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 665 mSDtfsCounter, 27575 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5031 GetRequests, 3855 SyntacticMatches, 57 SemanticMatches, 1119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35119 ImplicationChecksByTransitivity, 46.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=965occurred in iteration=18, InterpolantAutomatonStates: 1151, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 20 MinimizatonAttempts, 187 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 69.0s InterpolantComputationTime, 4818 NumberOfCodeBlocks, 4818 NumberOfCodeBlocksAsserted, 288 NumberOfCheckSat, 6888 ConstructedInterpolants, 0 QuantifiedInterpolants, 20016 SizeOfPredicates, 1 NumberOfNonLiveVariables, 4871 ConjunctsInSsa, 646 ConjunctsInUnsatCore, 46 InterpolantComputations, 7 PerfectInterpolantSequences, 25366/225394 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((j == 36) && (i == 18)) || ((154 == j) && (77 == i))) || ((i == 16) && (32 == j))) || ((j == 4) && (i == 2))) || ((i == 45) && (j == 90))) || ((72 == j) && (i == 36))) || ((j == 172) && (i == 86))) || ((i == 22) && (44 == j))) || ((i == 25) && (j == 50))) || ((j == 18) && (i == 9))) || ((59 == i) && (j == 118))) || ((i == 27) && (j == 54))) || ((92 == j) && (i == 46))) || ((100 <= i) && (200 == j))) || ((i == 20) && (40 == j))) || ((i == 26) && (j == 52))) || ((19 == i) && (j == 38))) || ((44 == i) && (88 == j))) || ((j == 48) && (i == 24))) || ((i == 10) && (j == 20))) || ((91 == i) && (j == 182))) || ((j == 124) && (i == 62))) || ((j == 78) && (i == 39))) || ((i == 78) && (156 == j))) || ((5 == i) && (j == 10))) || ((98 == i) && (196 == j))) || ((152 == j) && (76 == i))) || ((i == 70) && (140 == j))) || ((j == 22) && (i == 11))) || ((35 == i) && (j == 70))) || ((30 == j) && (i == 15))) || ((95 == i) && (190 == j))) || ((64 == j) && (32 == i))) || ((30 == i) && (j == 60))) || ((j == 134) && (67 == i))) || ((29 == i) && (j == 58))) || ((j == 174) && (87 == i))) || ((81 == i) && (j == 162))) || ((i == 82) && (164 == j))) || ((84 == j) && (42 == i))) || ((i == 12) && (j == 24))) || ((184 == j) && (92 == i))) || ((i == 61) && (j == 122))) || ((j == 166) && (i == 83))) || ((j == 120) && (i == 60))) || ((i == 50) && (j == 100))) || ((i == 52) && (104 == j))) || ((i == 85) && (170 == j))) || ((57 == i) && (j == 114))) || ((i == 79) && (j == 158))) || ((i == 89) && (178 == j))) || ((i == 3) && (j == 6))) || ((j == 74) && (i == 37))) || ((j == 28) && (i == 14))) || ((68 == j) && (i == 34))) || ((7 == i) && (j == 14))) || ((56 == i) && (112 == j))) || ((i == 21) && (42 == j))) || ((i == 71) && (142 == j))) || ((i == 99) && (j == 198))) || ((23 == i) && (j == 46))) || ((j == 102) && (51 == i))) || ((146 == j) && (i == 73))) || ((76 == j) && (i == 38))) || ((108 == j) && (i == 54))) || ((192 == j) && (i == 96))) || ((j == 62) && (i == 31))) || ((i == 17) && (j == 34))) || ((i == 69) && (138 == j))) || ((148 == j) && (i == 74))) || ((56 == j) && (i == 28))) || ((49 == i) && (98 == j))) || ((i == 13) && (j == 26))) || ((94 == j) && (i == 47))) || ((88 == i) && (176 == j))) || ((i == 58) && (116 == j))) || ((i == 90) && (j == 180))) || ((j == 168) && (84 == i))) || ((j == 126) && (i == 63))) || ((66 == j) && (i == 33))) || ((72 == i) && (j == 144))) || ((j == 96) && (i == 48))) || ((j == 16) && (i == 8))) || ((i == 4) && (j == 8))) || ((97 == i) && (j == 194))) || ((j == 86) && (i == 43))) || ((i == 80) && (160 == j))) || ((66 == i) && (j == 132))) || ((j == 128) && (64 == i))) || ((j == 0) && (i == 0))) || ((110 == j) && (i == 55))) || ((i == 93) && (j == 186))) || ((j == 82) && (41 == i))) || ((53 == i) && (106 == j))) || ((j == 136) && (68 == i))) || ((j == 12) && (i == 6))) || ((j == 2) && (i == 1))) || ((40 == i) && (j == 80))) || ((i == 75) && (j == 150))) || ((j == 188) && (94 == i))) || ((j == 130) && (i == 65))) - ProcedureContractResult [Line: 14]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: (1 <= \old(cond)) Ensures: (1 <= \old(cond)) RESULT: Ultimate proved your program to be correct! [2024-09-12 18:24:18,499 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE