./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_unwindbound1.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_unwindbound1.c -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6835a6a52b399101fa57284de792210b11ef12afe0f3073436fba94237f48f05 --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-12 19:35:37,379 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 19:35:37,426 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 19:35:37,430 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 19:35:37,431 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 19:35:37,461 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 19:35:37,462 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 19:35:37,463 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 19:35:37,464 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 19:35:37,466 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 19:35:37,466 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 19:35:37,467 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 19:35:37,467 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 19:35:37,467 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 19:35:37,467 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 19:35:37,468 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 19:35:37,468 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 19:35:37,468 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 19:35:37,468 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 19:35:37,469 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 19:35:37,469 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 19:35:37,472 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 19:35:37,472 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 19:35:37,472 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 19:35:37,473 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 19:35:37,473 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 19:35:37,473 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 19:35:37,473 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 19:35:37,473 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 19:35:37,473 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 19:35:37,474 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 19:35:37,474 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 19:35:37,474 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:35:37,474 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 19:35:37,474 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 19:35:37,474 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 19:35:37,474 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 19:35:37,475 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 19:35:37,475 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 19:35:37,475 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 19:35:37,475 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 19:35:37,476 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 19:35:37,477 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6835a6a52b399101fa57284de792210b11ef12afe0f3073436fba94237f48f05 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 19:35:37,720 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 19:35:37,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 19:35:37,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 19:35:37,748 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 19:35:37,748 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 19:35:37,749 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_unwindbound1.c [2024-09-12 19:35:39,042 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 19:35:39,187 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 19:35:39,188 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_unwindbound1.c [2024-09-12 19:35:39,196 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/0d34d14d8/356c0f2ac86f4bd3ade8fae4866b51cf/FLAG75d8075d9 [2024-09-12 19:35:39,621 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/0d34d14d8/356c0f2ac86f4bd3ade8fae4866b51cf [2024-09-12 19:35:39,623 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 19:35:39,624 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 19:35:39,625 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 19:35:39,625 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 19:35:39,637 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 19:35:39,640 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:35:39" (1/1) ... [2024-09-12 19:35:39,641 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@474bd6b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:35:39, skipping insertion in model container [2024-09-12 19:35:39,641 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:35:39" (1/1) ... [2024-09-12 19:35:39,661 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 19:35:39,811 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/nla-digbench-scaling/ps3-ll_unwindbound1.c[458,471] [2024-09-12 19:35:39,831 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:35:39,838 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 19:35:39,849 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/nla-digbench-scaling/ps3-ll_unwindbound1.c[458,471] [2024-09-12 19:35:39,857 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:35:39,874 INFO L204 MainTranslator]: Completed translation [2024-09-12 19:35:39,875 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:35:39 WrapperNode [2024-09-12 19:35:39,875 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 19:35:39,876 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 19:35:39,876 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 19:35:39,876 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 19:35:39,881 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:35:39" (1/1) ... [2024-09-12 19:35:39,885 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:35:39" (1/1) ... [2024-09-12 19:35:39,890 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 19:35:39,890 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 19:35:39,891 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 19:35:39,891 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 19:35:39,891 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 19:35:39,898 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:35:39" (1/1) ... [2024-09-12 19:35:39,898 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:35:39" (1/1) ... [2024-09-12 19:35:39,899 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:35:39" (1/1) ... [2024-09-12 19:35:39,916 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-12 19:35:39,917 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:35:39" (1/1) ... [2024-09-12 19:35:39,917 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:35:39" (1/1) ... [2024-09-12 19:35:39,919 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:35:39" (1/1) ... [2024-09-12 19:35:39,921 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:35:39" (1/1) ... [2024-09-12 19:35:39,922 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:35:39" (1/1) ... [2024-09-12 19:35:39,923 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:35:39" (1/1) ... [2024-09-12 19:35:39,924 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 19:35:39,924 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 19:35:39,924 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 19:35:39,924 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 19:35:39,925 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:35:39" (1/1) ... [2024-09-12 19:35:39,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:35:39,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:35:39,963 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-12 19:35:39,974 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-12 19:35:40,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 19:35:40,017 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 19:35:40,017 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 19:35:40,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 19:35:40,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 19:35:40,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 19:35:40,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 19:35:40,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 19:35:40,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 19:35:40,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 19:35:40,066 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 19:35:40,067 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 19:35:40,336 INFO L? ?]: Removed 60 outVars from TransFormulas that were not future-live. [2024-09-12 19:35:40,336 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 19:35:40,365 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 19:35:40,367 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-12 19:35:40,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:35:40 BoogieIcfgContainer [2024-09-12 19:35:40,367 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 19:35:40,369 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 19:35:40,370 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 19:35:40,372 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 19:35:40,372 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 07:35:39" (1/3) ... [2024-09-12 19:35:40,373 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6342b914 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:35:40, skipping insertion in model container [2024-09-12 19:35:40,373 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:35:39" (2/3) ... [2024-09-12 19:35:40,374 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6342b914 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:35:40, skipping insertion in model container [2024-09-12 19:35:40,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:35:40" (3/3) ... [2024-09-12 19:35:40,376 INFO L112 eAbstractionObserver]: Analyzing ICFG ps3-ll_unwindbound1.c [2024-09-12 19:35:40,388 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 19:35:40,389 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 47 error locations. [2024-09-12 19:35:40,443 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 19:35:40,449 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;@72fac1b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 19:35:40,449 INFO L337 AbstractCegarLoop]: Starting to check reachability of 47 error locations. [2024-09-12 19:35:40,453 INFO L276 IsEmpty]: Start isEmpty. Operand has 112 states, 57 states have (on average 1.894736842105263) internal successors, (108), 104 states have internal predecessors, (108), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:35:40,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-09-12 19:35:40,457 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:35:40,458 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:35:40,459 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 44 more)] === [2024-09-12 19:35:40,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:40,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1852032348, now seen corresponding path program 1 times [2024-09-12 19:35:40,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:35:40,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441598127] [2024-09-12 19:35:40,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:35:40,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:35:40,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:40,673 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:35:40,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:40,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:35:40,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:35:40,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441598127] [2024-09-12 19:35:40,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441598127] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:35:40,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:35:40,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:35:40,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071871102] [2024-09-12 19:35:40,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:35:40,698 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:35:40,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:35:40,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:35:40,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:35:40,718 INFO L87 Difference]: Start difference. First operand has 112 states, 57 states have (on average 1.894736842105263) internal successors, (108), 104 states have internal predecessors, (108), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 5 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:35:40,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:35:40,852 INFO L93 Difference]: Finished difference Result 218 states and 237 transitions. [2024-09-12 19:35:40,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:35:40,854 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7 [2024-09-12 19:35:40,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:35:40,860 INFO L225 Difference]: With dead ends: 218 [2024-09-12 19:35:40,860 INFO L226 Difference]: Without dead ends: 107 [2024-09-12 19:35:40,863 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:35:40,865 INFO L434 NwaCegarLoop]: 98 mSDtfsCounter, 12 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:35:40,866 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 376 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:35:40,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-09-12 19:35:40,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2024-09-12 19:35:40,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 59 states have (on average 1.7457627118644068) internal successors, (103), 101 states have internal predecessors, (103), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:35:40,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 109 transitions. [2024-09-12 19:35:40,904 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 109 transitions. Word has length 7 [2024-09-12 19:35:40,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:35:40,904 INFO L474 AbstractCegarLoop]: Abstraction has 107 states and 109 transitions. [2024-09-12 19:35:40,904 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:35:40,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:40,905 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 109 transitions. [2024-09-12 19:35:40,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-09-12 19:35:40,909 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:35:40,909 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:35:40,909 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 19:35:40,910 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 44 more)] === [2024-09-12 19:35:40,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:40,910 INFO L85 PathProgramCache]: Analyzing trace with hash 745838706, now seen corresponding path program 1 times [2024-09-12 19:35:40,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:35:40,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451399777] [2024-09-12 19:35:40,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:35:40,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:35:40,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:40,975 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:35:40,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:40,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:35:40,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:35:40,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451399777] [2024-09-12 19:35:40,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451399777] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:35:40,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:35:40,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:35:40,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147340926] [2024-09-12 19:35:40,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:35:40,988 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:35:40,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:35:40,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:35:40,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:35:40,990 INFO L87 Difference]: Start difference. First operand 107 states and 109 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:35:41,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:35:41,226 INFO L93 Difference]: Finished difference Result 180 states and 197 transitions. [2024-09-12 19:35:41,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:35:41,227 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2024-09-12 19:35:41,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:35:41,229 INFO L225 Difference]: With dead ends: 180 [2024-09-12 19:35:41,229 INFO L226 Difference]: Without dead ends: 175 [2024-09-12 19:35:41,229 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:35:41,230 INFO L434 NwaCegarLoop]: 67 mSDtfsCounter, 74 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:35:41,230 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 188 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:35:41,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-09-12 19:35:41,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 136. [2024-09-12 19:35:41,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 87 states have (on average 1.735632183908046) internal successors, (151), 129 states have internal predecessors, (151), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 19:35:41,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 159 transitions. [2024-09-12 19:35:41,255 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 159 transitions. Word has length 10 [2024-09-12 19:35:41,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:35:41,259 INFO L474 AbstractCegarLoop]: Abstraction has 136 states and 159 transitions. [2024-09-12 19:35:41,259 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:35:41,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:41,260 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 159 transitions. [2024-09-12 19:35:41,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-09-12 19:35:41,260 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:35:41,260 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:35:41,260 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 19:35:41,261 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 44 more)] === [2024-09-12 19:35:41,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:41,261 INFO L85 PathProgramCache]: Analyzing trace with hash -508540268, now seen corresponding path program 1 times [2024-09-12 19:35:41,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:35:41,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498616034] [2024-09-12 19:35:41,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:35:41,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:35:41,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:41,318 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:35:41,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:41,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:35:41,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:35:41,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498616034] [2024-09-12 19:35:41,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498616034] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:35:41,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:35:41,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:35:41,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540456637] [2024-09-12 19:35:41,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:35:41,325 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:35:41,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:35:41,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:35:41,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:35:41,325 INFO L87 Difference]: Start difference. First operand 136 states and 159 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:35:41,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:35:41,478 INFO L93 Difference]: Finished difference Result 173 states and 190 transitions. [2024-09-12 19:35:41,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:35:41,479 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2024-09-12 19:35:41,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:35:41,480 INFO L225 Difference]: With dead ends: 173 [2024-09-12 19:35:41,481 INFO L226 Difference]: Without dead ends: 155 [2024-09-12 19:35:41,482 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:35:41,483 INFO L434 NwaCegarLoop]: 52 mSDtfsCounter, 49 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:35:41,483 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 123 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:35:41,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-09-12 19:35:41,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 148. [2024-09-12 19:35:41,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 99 states have (on average 1.5656565656565657) internal successors, (155), 141 states have internal predecessors, (155), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 19:35:41,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 163 transitions. [2024-09-12 19:35:41,502 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 163 transitions. Word has length 12 [2024-09-12 19:35:41,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:35:41,502 INFO L474 AbstractCegarLoop]: Abstraction has 148 states and 163 transitions. [2024-09-12 19:35:41,503 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:35:41,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:41,503 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 163 transitions. [2024-09-12 19:35:41,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-09-12 19:35:41,503 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:35:41,503 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:35:41,503 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-12 19:35:41,504 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 44 more)] === [2024-09-12 19:35:41,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:41,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1686855930, now seen corresponding path program 1 times [2024-09-12 19:35:41,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:35:41,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440535927] [2024-09-12 19:35:41,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:35:41,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:35:41,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:41,595 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:35:41,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:41,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:35:41,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:35:41,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440535927] [2024-09-12 19:35:41,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440535927] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:35:41,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:35:41,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:35:41,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341102776] [2024-09-12 19:35:41,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:35:41,600 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:35:41,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:35:41,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:35:41,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:35:41,601 INFO L87 Difference]: Start difference. First operand 148 states and 163 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:35:41,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:35:41,780 INFO L93 Difference]: Finished difference Result 163 states and 174 transitions. [2024-09-12 19:35:41,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:35:41,781 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2024-09-12 19:35:41,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:35:41,782 INFO L225 Difference]: With dead ends: 163 [2024-09-12 19:35:41,782 INFO L226 Difference]: Without dead ends: 157 [2024-09-12 19:35:41,783 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:35:41,784 INFO L434 NwaCegarLoop]: 51 mSDtfsCounter, 94 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:35:41,784 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 156 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:35:41,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-09-12 19:35:41,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 151. [2024-09-12 19:35:41,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 102 states have (on average 1.5196078431372548) internal successors, (155), 144 states have internal predecessors, (155), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 19:35:41,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 163 transitions. [2024-09-12 19:35:41,798 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 163 transitions. Word has length 18 [2024-09-12 19:35:41,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:35:41,799 INFO L474 AbstractCegarLoop]: Abstraction has 151 states and 163 transitions. [2024-09-12 19:35:41,799 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:35:41,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:41,799 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 163 transitions. [2024-09-12 19:35:41,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-09-12 19:35:41,800 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:35:41,800 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:35:41,800 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-12 19:35:41,800 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 44 more)] === [2024-09-12 19:35:41,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:41,801 INFO L85 PathProgramCache]: Analyzing trace with hash 752926347, now seen corresponding path program 1 times [2024-09-12 19:35:41,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:35:41,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198233843] [2024-09-12 19:35:41,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:35:41,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:35:41,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:35:41,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1682152391] [2024-09-12 19:35:41,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:35:41,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:35:41,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:35:41,824 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:35:41,828 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-12 19:35:41,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:41,862 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:35:41,865 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:35:41,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:35:41,946 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:35:41,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:35:41,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198233843] [2024-09-12 19:35:41,947 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:35:41,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1682152391] [2024-09-12 19:35:41,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1682152391] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:35:41,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:35:41,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:35:41,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707753066] [2024-09-12 19:35:41,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:35:41,947 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:35:41,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:35:41,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:35:41,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:35:41,948 INFO L87 Difference]: Start difference. First operand 151 states and 163 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 19:35:42,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:35:42,094 INFO L93 Difference]: Finished difference Result 161 states and 166 transitions. [2024-09-12 19:35:42,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:35:42,095 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 19 [2024-09-12 19:35:42,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:35:42,096 INFO L225 Difference]: With dead ends: 161 [2024-09-12 19:35:42,097 INFO L226 Difference]: Without dead ends: 155 [2024-09-12 19:35:42,097 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 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 19:35:42,098 INFO L434 NwaCegarLoop]: 66 mSDtfsCounter, 34 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:35:42,099 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 90 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:35:42,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-09-12 19:35:42,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 152. [2024-09-12 19:35:42,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 103 states have (on average 1.4660194174757282) internal successors, (151), 145 states have internal predecessors, (151), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 19:35:42,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 159 transitions. [2024-09-12 19:35:42,117 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 159 transitions. Word has length 19 [2024-09-12 19:35:42,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:35:42,118 INFO L474 AbstractCegarLoop]: Abstraction has 152 states and 159 transitions. [2024-09-12 19:35:42,118 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 19:35:42,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:42,118 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 159 transitions. [2024-09-12 19:35:42,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-09-12 19:35:42,122 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:35:42,122 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:35:42,135 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 19:35:42,323 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:35:42,323 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 44 more)] === [2024-09-12 19:35:42,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:42,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1134523129, now seen corresponding path program 1 times [2024-09-12 19:35:42,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:35:42,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744985171] [2024-09-12 19:35:42,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:35:42,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:35:42,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:35:42,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1157630324] [2024-09-12 19:35:42,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:35:42,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:35:42,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:35:42,352 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:35:42,355 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-12 19:35:42,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:42,391 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:35:42,394 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:35:42,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:35:42,552 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:35:42,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:35:42,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744985171] [2024-09-12 19:35:42,553 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:35:42,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157630324] [2024-09-12 19:35:42,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1157630324] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:35:42,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:35:42,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:35:42,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623387485] [2024-09-12 19:35:42,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:35:42,555 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:35:42,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:35:42,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:35:42,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:35:42,556 INFO L87 Difference]: Start difference. First operand 152 states and 159 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:35:42,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:35:42,724 INFO L93 Difference]: Finished difference Result 161 states and 165 transitions. [2024-09-12 19:35:42,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:35:42,724 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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 31 [2024-09-12 19:35:42,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:35:42,725 INFO L225 Difference]: With dead ends: 161 [2024-09-12 19:35:42,725 INFO L226 Difference]: Without dead ends: 140 [2024-09-12 19:35:42,725 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:35:42,726 INFO L434 NwaCegarLoop]: 63 mSDtfsCounter, 28 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:35:42,726 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 209 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:35:42,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2024-09-12 19:35:42,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 138. [2024-09-12 19:35:42,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 88 states have (on average 1.5340909090909092) internal successors, (135), 130 states have internal predecessors, (135), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 19:35:42,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 143 transitions. [2024-09-12 19:35:42,736 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 143 transitions. Word has length 31 [2024-09-12 19:35:42,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:35:42,737 INFO L474 AbstractCegarLoop]: Abstraction has 138 states and 143 transitions. [2024-09-12 19:35:42,737 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:35:42,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:42,737 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 143 transitions. [2024-09-12 19:35:42,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-09-12 19:35:42,738 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:35:42,738 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:35:42,754 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-12 19:35:42,942 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-12 19:35:42,943 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 44 more)] === [2024-09-12 19:35:42,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:42,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1475984606, now seen corresponding path program 1 times [2024-09-12 19:35:42,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:35:42,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150044226] [2024-09-12 19:35:42,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:35:42,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:35:42,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:43,002 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:35:43,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:43,006 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 19:35:43,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:43,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:35:43,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:35:43,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150044226] [2024-09-12 19:35:43,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150044226] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:35:43,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:35:43,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:35:43,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164604237] [2024-09-12 19:35:43,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:35:43,012 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:35:43,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:35:43,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:35:43,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:35:43,013 INFO L87 Difference]: Start difference. First operand 138 states and 143 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:35:43,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:35:43,076 INFO L93 Difference]: Finished difference Result 140 states and 143 transitions. [2024-09-12 19:35:43,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:35:43,076 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 34 [2024-09-12 19:35:43,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:35:43,077 INFO L225 Difference]: With dead ends: 140 [2024-09-12 19:35:43,077 INFO L226 Difference]: Without dead ends: 138 [2024-09-12 19:35:43,078 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:35:43,079 INFO L434 NwaCegarLoop]: 95 mSDtfsCounter, 9 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:35:43,079 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 274 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:35:43,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-09-12 19:35:43,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2024-09-12 19:35:43,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 88 states have (on average 1.5113636363636365) internal successors, (133), 130 states have internal predecessors, (133), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 19:35:43,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 141 transitions. [2024-09-12 19:35:43,094 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 141 transitions. Word has length 34 [2024-09-12 19:35:43,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:35:43,094 INFO L474 AbstractCegarLoop]: Abstraction has 138 states and 141 transitions. [2024-09-12 19:35:43,094 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:35:43,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:43,096 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 141 transitions. [2024-09-12 19:35:43,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-09-12 19:35:43,096 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:35:43,096 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:35:43,096 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-12 19:35:43,097 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 44 more)] === [2024-09-12 19:35:43,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:43,097 INFO L85 PathProgramCache]: Analyzing trace with hash -2575551, now seen corresponding path program 1 times [2024-09-12 19:35:43,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:35:43,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951479480] [2024-09-12 19:35:43,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:35:43,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:35:43,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:35:43,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2005385991] [2024-09-12 19:35:43,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:35:43,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:35:43,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:35:43,118 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:35:43,119 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-12 19:35:43,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:43,168 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:35:43,169 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:35:43,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:35:43,231 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:35:43,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:35:43,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951479480] [2024-09-12 19:35:43,231 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:35:43,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005385991] [2024-09-12 19:35:43,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2005385991] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:35:43,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:35:43,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:35:43,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905754168] [2024-09-12 19:35:43,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:35:43,236 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:35:43,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:35:43,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:35:43,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:35:43,237 INFO L87 Difference]: Start difference. First operand 138 states and 141 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:35:43,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:35:43,391 INFO L93 Difference]: Finished difference Result 213 states and 231 transitions. [2024-09-12 19:35:43,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:35:43,391 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 39 [2024-09-12 19:35:43,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:35:43,392 INFO L225 Difference]: With dead ends: 213 [2024-09-12 19:35:43,392 INFO L226 Difference]: Without dead ends: 194 [2024-09-12 19:35:43,393 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:35:43,393 INFO L434 NwaCegarLoop]: 64 mSDtfsCounter, 57 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:35:43,393 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 128 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:35:43,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-09-12 19:35:43,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 181. [2024-09-12 19:35:43,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 130 states have (on average 1.4846153846153847) internal successors, (193), 172 states have internal predecessors, (193), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:35:43,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 203 transitions. [2024-09-12 19:35:43,403 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 203 transitions. Word has length 39 [2024-09-12 19:35:43,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:35:43,403 INFO L474 AbstractCegarLoop]: Abstraction has 181 states and 203 transitions. [2024-09-12 19:35:43,403 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:35:43,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:43,404 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 203 transitions. [2024-09-12 19:35:43,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-09-12 19:35:43,404 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:35:43,404 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:35:43,418 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-12 19:35:43,605 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-09-12 19:35:43,605 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 44 more)] === [2024-09-12 19:35:43,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:43,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1819866147, now seen corresponding path program 1 times [2024-09-12 19:35:43,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:35:43,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959657558] [2024-09-12 19:35:43,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:35:43,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:35:43,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:43,657 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:35:43,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:43,660 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 19:35:43,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:43,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:35:43,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:35:43,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959657558] [2024-09-12 19:35:43,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959657558] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:35:43,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:35:43,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:35:43,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395933635] [2024-09-12 19:35:43,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:35:43,664 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:35:43,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:35:43,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:35:43,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:35:43,665 INFO L87 Difference]: Start difference. First operand 181 states and 203 transitions. Second operand has 5 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:35:43,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:35:43,749 INFO L93 Difference]: Finished difference Result 182 states and 203 transitions. [2024-09-12 19:35:43,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:35:43,749 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2024-09-12 19:35:43,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:35:43,750 INFO L225 Difference]: With dead ends: 182 [2024-09-12 19:35:43,751 INFO L226 Difference]: Without dead ends: 181 [2024-09-12 19:35:43,751 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:35:43,751 INFO L434 NwaCegarLoop]: 76 mSDtfsCounter, 34 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:35:43,751 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 206 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:35:43,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-09-12 19:35:43,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2024-09-12 19:35:43,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 130 states have (on average 1.476923076923077) internal successors, (192), 172 states have internal predecessors, (192), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:35:43,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 202 transitions. [2024-09-12 19:35:43,760 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 202 transitions. Word has length 41 [2024-09-12 19:35:43,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:35:43,761 INFO L474 AbstractCegarLoop]: Abstraction has 181 states and 202 transitions. [2024-09-12 19:35:43,761 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:35:43,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:43,761 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 202 transitions. [2024-09-12 19:35:43,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-09-12 19:35:43,765 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:35:43,766 INFO L216 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:35:43,766 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-09-12 19:35:43,766 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 44 more)] === [2024-09-12 19:35:43,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:43,766 INFO L85 PathProgramCache]: Analyzing trace with hash 839679077, now seen corresponding path program 1 times [2024-09-12 19:35:43,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:35:43,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120548494] [2024-09-12 19:35:43,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:35:43,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:35:43,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:43,848 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:35:43,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:43,852 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 19:35:43,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:43,855 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:35:43,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:35:43,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120548494] [2024-09-12 19:35:43,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120548494] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:35:43,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2037480289] [2024-09-12 19:35:43,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:35:43,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:35:43,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:35:43,857 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:35:43,858 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-12 19:35:43,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:43,887 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:35:43,892 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:35:43,946 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:35:43,946 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:35:43,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2037480289] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:35:43,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:35:43,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2024-09-12 19:35:43,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331136730] [2024-09-12 19:35:43,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:35:43,947 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:35:43,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:35:43,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:35:43,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:35:43,947 INFO L87 Difference]: Start difference. First operand 181 states and 202 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:35:43,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:35:43,989 INFO L93 Difference]: Finished difference Result 215 states and 234 transitions. [2024-09-12 19:35:43,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:35:43,989 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 43 [2024-09-12 19:35:43,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:35:43,990 INFO L225 Difference]: With dead ends: 215 [2024-09-12 19:35:43,990 INFO L226 Difference]: Without dead ends: 77 [2024-09-12 19:35:43,991 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:35:43,991 INFO L434 NwaCegarLoop]: 65 mSDtfsCounter, 68 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:35:43,991 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 197 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:35:43,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-09-12 19:35:43,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-09-12 19:35:43,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 61 states have (on average 1.1475409836065573) internal successors, (70), 70 states have internal predecessors, (70), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:35:43,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 76 transitions. [2024-09-12 19:35:43,998 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 76 transitions. Word has length 43 [2024-09-12 19:35:43,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:35:43,998 INFO L474 AbstractCegarLoop]: Abstraction has 77 states and 76 transitions. [2024-09-12 19:35:43,998 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:35:43,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:43,999 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 76 transitions. [2024-09-12 19:35:43,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-09-12 19:35:43,999 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:35:43,999 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:35:44,011 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 19:35:44,200 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 19:35:44,200 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 44 more)] === [2024-09-12 19:35:44,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:44,201 INFO L85 PathProgramCache]: Analyzing trace with hash 260247655, now seen corresponding path program 1 times [2024-09-12 19:35:44,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:35:44,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983192639] [2024-09-12 19:35:44,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:35:44,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:35:44,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:44,291 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:35:44,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:44,299 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 19:35:44,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:44,302 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:35:44,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:35:44,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983192639] [2024-09-12 19:35:44,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983192639] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:35:44,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1473967417] [2024-09-12 19:35:44,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:35:44,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:35:44,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:35:44,307 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:35:44,308 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-12 19:35:44,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:44,341 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:35:44,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:35:44,424 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:35:44,424 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:35:44,505 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:35:44,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1473967417] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:35:44,505 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:35:44,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 13 [2024-09-12 19:35:44,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466838494] [2024-09-12 19:35:44,506 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:35:44,506 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 19:35:44,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:35:44,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 19:35:44,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-09-12 19:35:44,506 INFO L87 Difference]: Start difference. First operand 77 states and 76 transitions. Second operand has 14 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 6 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 19:35:44,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:35:44,591 INFO L93 Difference]: Finished difference Result 77 states and 76 transitions. [2024-09-12 19:35:44,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 19:35:44,591 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 6 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 44 [2024-09-12 19:35:44,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:35:44,592 INFO L225 Difference]: With dead ends: 77 [2024-09-12 19:35:44,592 INFO L226 Difference]: Without dead ends: 76 [2024-09-12 19:35:44,593 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2024-09-12 19:35:44,594 INFO L434 NwaCegarLoop]: 59 mSDtfsCounter, 49 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:35:44,595 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 365 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:35:44,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-09-12 19:35:44,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-09-12 19:35:44,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 61 states have (on average 1.1311475409836065) internal successors, (69), 69 states have internal predecessors, (69), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:35:44,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 75 transitions. [2024-09-12 19:35:44,602 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 75 transitions. Word has length 44 [2024-09-12 19:35:44,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:35:44,603 INFO L474 AbstractCegarLoop]: Abstraction has 76 states and 75 transitions. [2024-09-12 19:35:44,603 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 6 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 19:35:44,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:44,603 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 75 transitions. [2024-09-12 19:35:44,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-09-12 19:35:44,604 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:35:44,604 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:35:44,617 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 19:35:44,804 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 19:35:44,805 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 44 more)] === [2024-09-12 19:35:44,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:44,805 INFO L85 PathProgramCache]: Analyzing trace with hash 989894856, now seen corresponding path program 1 times [2024-09-12 19:35:44,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:35:44,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092441684] [2024-09-12 19:35:44,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:35:44,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:35:44,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:35:44,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2064507014] [2024-09-12 19:35:44,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:35:44,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:35:44,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:35:44,822 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:35:44,823 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-12 19:35:44,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:44,856 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:35:44,857 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:35:44,906 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:35:44,907 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:35:44,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:35:44,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092441684] [2024-09-12 19:35:44,907 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:35:44,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2064507014] [2024-09-12 19:35:44,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2064507014] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:35:44,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:35:44,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:35:44,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096945217] [2024-09-12 19:35:44,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:35:44,907 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:35:44,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:35:44,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:35:44,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:35:44,908 INFO L87 Difference]: Start difference. First operand 76 states and 75 transitions. Second operand has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:35:44,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:35:44,951 INFO L93 Difference]: Finished difference Result 76 states and 75 transitions. [2024-09-12 19:35:44,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:35:44,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 46 [2024-09-12 19:35:44,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:35:44,952 INFO L225 Difference]: With dead ends: 76 [2024-09-12 19:35:44,952 INFO L226 Difference]: Without dead ends: 75 [2024-09-12 19:35:44,952 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 43 SyntacticMatches, 1 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 19:35:44,952 INFO L434 NwaCegarLoop]: 44 mSDtfsCounter, 18 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:35:44,953 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 54 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:35:44,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-09-12 19:35:44,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2024-09-12 19:35:44,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 61 states have (on average 1.1147540983606556) internal successors, (68), 68 states have internal predecessors, (68), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:35:44,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 74 transitions. [2024-09-12 19:35:44,960 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 74 transitions. Word has length 46 [2024-09-12 19:35:44,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:35:44,960 INFO L474 AbstractCegarLoop]: Abstraction has 75 states and 74 transitions. [2024-09-12 19:35:44,960 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:35:44,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:44,961 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 74 transitions. [2024-09-12 19:35:44,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-09-12 19:35:44,963 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:35:44,963 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:35:44,976 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-12 19:35:45,164 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 19:35:45,165 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 44 more)] === [2024-09-12 19:35:45,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:45,165 INFO L85 PathProgramCache]: Analyzing trace with hash 621969578, now seen corresponding path program 1 times [2024-09-12 19:35:45,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:35:45,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150521092] [2024-09-12 19:35:45,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:35:45,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:35:45,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:35:45,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1660331148] [2024-09-12 19:35:45,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:35:45,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:35:45,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:35:45,181 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:35:45,196 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-12 19:35:45,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:45,231 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:35:45,233 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:35:45,336 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:35:45,336 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:35:45,411 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:35:45,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:35:45,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150521092] [2024-09-12 19:35:45,412 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:35:45,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660331148] [2024-09-12 19:35:45,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1660331148] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:35:45,412 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:35:45,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-09-12 19:35:45,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260283954] [2024-09-12 19:35:45,412 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:35:45,412 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:35:45,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:35:45,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:35:45,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:35:45,413 INFO L87 Difference]: Start difference. First operand 75 states and 74 transitions. Second operand has 8 states, 7 states have (on average 11.428571428571429) internal successors, (80), 8 states have internal predecessors, (80), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 19:35:45,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:35:45,509 INFO L93 Difference]: Finished difference Result 75 states and 74 transitions. [2024-09-12 19:35:45,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:35:45,509 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.428571428571429) internal successors, (80), 8 states have internal predecessors, (80), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 47 [2024-09-12 19:35:45,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:35:45,510 INFO L225 Difference]: With dead ends: 75 [2024-09-12 19:35:45,510 INFO L226 Difference]: Without dead ends: 74 [2024-09-12 19:35:45,510 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:35:45,511 INFO L434 NwaCegarLoop]: 23 mSDtfsCounter, 75 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:35:45,511 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 55 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:35:45,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-09-12 19:35:45,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2024-09-12 19:35:45,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 61 states have (on average 1.098360655737705) internal successors, (67), 67 states have internal predecessors, (67), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:35:45,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 73 transitions. [2024-09-12 19:35:45,519 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 73 transitions. Word has length 47 [2024-09-12 19:35:45,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:35:45,519 INFO L474 AbstractCegarLoop]: Abstraction has 74 states and 73 transitions. [2024-09-12 19:35:45,520 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.428571428571429) internal successors, (80), 8 states have internal predecessors, (80), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 19:35:45,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:45,520 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 73 transitions. [2024-09-12 19:35:45,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-09-12 19:35:45,520 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:35:45,520 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:35:45,536 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-12 19:35:45,724 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 19:35:45,725 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 44 more)] === [2024-09-12 19:35:45,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:45,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1121429040, now seen corresponding path program 1 times [2024-09-12 19:35:45,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:35:45,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006314759] [2024-09-12 19:35:45,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:35:45,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:35:45,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:35:45,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1876852772] [2024-09-12 19:35:45,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:35:45,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:35:45,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:35:45,738 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:35:45,740 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-12 19:35:45,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:45,771 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:35:45,772 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:35:45,825 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:35:45,825 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:35:45,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:35:45,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006314759] [2024-09-12 19:35:45,825 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:35:45,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876852772] [2024-09-12 19:35:45,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1876852772] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:35:45,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:35:45,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:35:45,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440861253] [2024-09-12 19:35:45,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:35:45,826 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:35:45,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:35:45,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:35:45,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:35:45,827 INFO L87 Difference]: Start difference. First operand 74 states and 73 transitions. Second operand has 5 states, 4 states have (on average 12.25) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:35:45,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:35:45,898 INFO L93 Difference]: Finished difference Result 74 states and 73 transitions. [2024-09-12 19:35:45,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:35:45,898 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.25) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 54 [2024-09-12 19:35:45,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:35:45,899 INFO L225 Difference]: With dead ends: 74 [2024-09-12 19:35:45,899 INFO L226 Difference]: Without dead ends: 71 [2024-09-12 19:35:45,899 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:35:45,899 INFO L434 NwaCegarLoop]: 22 mSDtfsCounter, 69 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:35:45,899 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 46 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:35:45,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-09-12 19:35:45,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2024-09-12 19:35:45,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 61 states have (on average 1.0491803278688525) internal successors, (64), 64 states have internal predecessors, (64), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:35:45,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 70 transitions. [2024-09-12 19:35:45,908 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 70 transitions. Word has length 54 [2024-09-12 19:35:45,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:35:45,908 INFO L474 AbstractCegarLoop]: Abstraction has 71 states and 70 transitions. [2024-09-12 19:35:45,909 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.25) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:35:45,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:45,909 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 70 transitions. [2024-09-12 19:35:45,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-09-12 19:35:45,909 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:35:45,909 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:35:45,925 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-09-12 19:35:46,110 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 19:35:46,111 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 44 more)] === [2024-09-12 19:35:46,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:46,111 INFO L85 PathProgramCache]: Analyzing trace with hash -404561742, now seen corresponding path program 1 times [2024-09-12 19:35:46,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:35:46,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743191141] [2024-09-12 19:35:46,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:35:46,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:35:46,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:35:46,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [693700637] [2024-09-12 19:35:46,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:35:46,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:35:46,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:35:46,123 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:35:46,127 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-12 19:35:46,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:46,164 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:35:46,165 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:35:46,285 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:35:46,285 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:35:46,420 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:35:46,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:35:46,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743191141] [2024-09-12 19:35:46,420 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:35:46,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693700637] [2024-09-12 19:35:46,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693700637] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:35:46,420 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:35:46,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-09-12 19:35:46,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874626967] [2024-09-12 19:35:46,420 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:35:46,421 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:35:46,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:35:46,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:35:46,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:35:46,421 INFO L87 Difference]: Start difference. First operand 71 states and 70 transitions. Second operand has 8 states, 7 states have (on average 13.714285714285714) internal successors, (96), 8 states have internal predecessors, (96), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 19:35:46,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:35:46,510 INFO L93 Difference]: Finished difference Result 71 states and 70 transitions. [2024-09-12 19:35:46,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:35:46,510 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.714285714285714) internal successors, (96), 8 states have internal predecessors, (96), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 55 [2024-09-12 19:35:46,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:35:46,511 INFO L225 Difference]: With dead ends: 71 [2024-09-12 19:35:46,511 INFO L226 Difference]: Without dead ends: 68 [2024-09-12 19:35:46,511 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:35:46,528 INFO L434 NwaCegarLoop]: 23 mSDtfsCounter, 27 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:35:46,528 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 85 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:35:46,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-09-12 19:35:46,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2024-09-12 19:35:46,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 61 states have (on average 1.0) internal successors, (61), 61 states have internal predecessors, (61), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:35:46,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 67 transitions. [2024-09-12 19:35:46,539 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 67 transitions. Word has length 55 [2024-09-12 19:35:46,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:35:46,540 INFO L474 AbstractCegarLoop]: Abstraction has 68 states and 67 transitions. [2024-09-12 19:35:46,540 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.714285714285714) internal successors, (96), 8 states have internal predecessors, (96), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 19:35:46,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:46,540 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 67 transitions. [2024-09-12 19:35:46,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-09-12 19:35:46,541 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:35:46,541 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:35:46,552 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-12 19:35:46,744 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 19:35:46,745 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 44 more)] === [2024-09-12 19:35:46,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:46,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1640956908, now seen corresponding path program 1 times [2024-09-12 19:35:46,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:35:46,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480169465] [2024-09-12 19:35:46,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:35:46,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:35:46,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:35:46,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1469432646] [2024-09-12 19:35:46,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:35:46,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:35:46,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:35:46,765 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:35:46,769 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-12 19:35:46,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:46,805 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 19:35:46,807 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:35:47,019 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:35:47,019 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:35:47,157 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:35:47,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:35:47,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480169465] [2024-09-12 19:35:47,158 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:35:47,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469432646] [2024-09-12 19:35:47,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1469432646] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 19:35:47,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:35:47,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 9 [2024-09-12 19:35:47,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472782840] [2024-09-12 19:35:47,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:35:47,159 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:35:47,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:35:47,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:35:47,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:35:47,175 INFO L87 Difference]: Start difference. First operand 68 states and 67 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:35:47,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:35:47,286 INFO L93 Difference]: Finished difference Result 68 states and 67 transitions. [2024-09-12 19:35:47,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:35:47,287 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 67 [2024-09-12 19:35:47,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:35:47,287 INFO L225 Difference]: With dead ends: 68 [2024-09-12 19:35:47,287 INFO L226 Difference]: Without dead ends: 0 [2024-09-12 19:35:47,288 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 124 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:35:47,288 INFO L434 NwaCegarLoop]: 15 mSDtfsCounter, 29 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:35:47,289 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 58 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:35:47,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-12 19:35:47,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-12 19:35:47,289 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 19:35:47,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-12 19:35:47,289 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 67 [2024-09-12 19:35:47,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:35:47,289 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-12 19:35:47,289 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:35:47,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:47,290 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-12 19:35:47,290 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-12 19:35:47,292 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 47 remaining) [2024-09-12 19:35:47,292 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 47 remaining) [2024-09-12 19:35:47,292 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 47 remaining) [2024-09-12 19:35:47,293 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 47 remaining) [2024-09-12 19:35:47,293 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 47 remaining) [2024-09-12 19:35:47,293 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 47 remaining) [2024-09-12 19:35:47,293 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 47 remaining) [2024-09-12 19:35:47,293 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 47 remaining) [2024-09-12 19:35:47,293 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 47 remaining) [2024-09-12 19:35:47,293 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 47 remaining) [2024-09-12 19:35:47,293 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 47 remaining) [2024-09-12 19:35:47,293 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 47 remaining) [2024-09-12 19:35:47,294 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 47 remaining) [2024-09-12 19:35:47,294 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 47 remaining) [2024-09-12 19:35:47,294 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 47 remaining) [2024-09-12 19:35:47,294 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 47 remaining) [2024-09-12 19:35:47,294 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 47 remaining) [2024-09-12 19:35:47,294 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 47 remaining) [2024-09-12 19:35:47,294 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 47 remaining) [2024-09-12 19:35:47,294 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 47 remaining) [2024-09-12 19:35:47,295 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 47 remaining) [2024-09-12 19:35:47,295 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 47 remaining) [2024-09-12 19:35:47,295 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 47 remaining) [2024-09-12 19:35:47,295 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 47 remaining) [2024-09-12 19:35:47,295 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 47 remaining) [2024-09-12 19:35:47,295 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 47 remaining) [2024-09-12 19:35:47,295 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 47 remaining) [2024-09-12 19:35:47,295 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 47 remaining) [2024-09-12 19:35:47,296 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 47 remaining) [2024-09-12 19:35:47,296 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 47 remaining) [2024-09-12 19:35:47,296 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 47 remaining) [2024-09-12 19:35:47,296 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 47 remaining) [2024-09-12 19:35:47,296 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 47 remaining) [2024-09-12 19:35:47,296 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 47 remaining) [2024-09-12 19:35:47,296 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 47 remaining) [2024-09-12 19:35:47,296 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 47 remaining) [2024-09-12 19:35:47,297 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr36ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 47 remaining) [2024-09-12 19:35:47,297 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr37ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 47 remaining) [2024-09-12 19:35:47,297 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr38ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 47 remaining) [2024-09-12 19:35:47,297 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr39ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 47 remaining) [2024-09-12 19:35:47,297 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr40ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 47 remaining) [2024-09-12 19:35:47,297 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr41ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 47 remaining) [2024-09-12 19:35:47,297 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr42ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 47 remaining) [2024-09-12 19:35:47,297 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr43ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 47 remaining) [2024-09-12 19:35:47,297 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr44ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 47 remaining) [2024-09-12 19:35:47,297 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr45ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 47 remaining) [2024-09-12 19:35:47,297 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 47 remaining) [2024-09-12 19:35:47,313 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-09-12 19:35:47,497 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 19:35:47,500 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:35:47,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-09-12 19:35:48,631 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-12 19:35:48,658 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.09 07:35:48 BoogieIcfgContainer [2024-09-12 19:35:48,658 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-12 19:35:48,659 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-09-12 19:35:48,659 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-09-12 19:35:48,659 INFO L274 PluginConnector]: Witness Printer initialized [2024-09-12 19:35:48,659 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:35:40" (3/4) ... [2024-09-12 19:35:48,664 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-09-12 19:35:48,667 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2024-09-12 19:35:48,667 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2024-09-12 19:35:48,667 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-09-12 19:35:48,675 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-09-12 19:35:48,676 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-09-12 19:35:48,676 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-09-12 19:35:48,676 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-09-12 19:35:48,715 WARN L216 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((x == 0) && (counter == 0)) && (c == 0)) && (y == 0)) || (((y == 1) && (x == 1)) && (counter == 1))) && (\old(counter) == 0)) [2024-09-12 19:35:48,773 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.graphml [2024-09-12 19:35:48,773 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml [2024-09-12 19:35:48,773 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-09-12 19:35:48,773 INFO L158 Benchmark]: Toolchain (without parser) took 9149.20ms. Allocated memory was 69.2MB in the beginning and 172.0MB in the end (delta: 102.8MB). Free memory was 50.0MB in the beginning and 99.9MB in the end (delta: -49.9MB). Peak memory consumption was 51.4MB. Max. memory is 16.1GB. [2024-09-12 19:35:48,774 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 69.2MB. Free memory was 45.7MB in the beginning and 45.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 19:35:48,774 INFO L158 Benchmark]: CACSL2BoogieTranslator took 250.06ms. Allocated memory is still 69.2MB. Free memory was 49.8MB in the beginning and 38.1MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-12 19:35:48,774 INFO L158 Benchmark]: Boogie Procedure Inliner took 14.48ms. Allocated memory is still 69.2MB. Free memory was 38.1MB in the beginning and 37.2MB in the end (delta: 958.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-12 19:35:48,774 INFO L158 Benchmark]: Boogie Preprocessor took 32.98ms. Allocated memory is still 69.2MB. Free memory was 37.2MB in the beginning and 35.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-12 19:35:48,775 INFO L158 Benchmark]: RCFGBuilder took 443.27ms. Allocated memory was 69.2MB in the beginning and 96.5MB in the end (delta: 27.3MB). Free memory was 35.4MB in the beginning and 61.7MB in the end (delta: -26.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-12 19:35:48,775 INFO L158 Benchmark]: TraceAbstraction took 8289.43ms. Allocated memory was 96.5MB in the beginning and 172.0MB in the end (delta: 75.5MB). Free memory was 61.3MB in the beginning and 105.2MB in the end (delta: -43.9MB). Peak memory consumption was 69.1MB. Max. memory is 16.1GB. [2024-09-12 19:35:48,775 INFO L158 Benchmark]: Witness Printer took 114.39ms. Allocated memory is still 172.0MB. Free memory was 105.2MB in the beginning and 99.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-12 19:35:48,776 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 69.2MB. Free memory was 45.7MB in the beginning and 45.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 250.06ms. Allocated memory is still 69.2MB. Free memory was 49.8MB in the beginning and 38.1MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 14.48ms. Allocated memory is still 69.2MB. Free memory was 38.1MB in the beginning and 37.2MB in the end (delta: 958.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.98ms. Allocated memory is still 69.2MB. Free memory was 37.2MB in the beginning and 35.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 443.27ms. Allocated memory was 69.2MB in the beginning and 96.5MB in the end (delta: 27.3MB). Free memory was 35.4MB in the beginning and 61.7MB in the end (delta: -26.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 8289.43ms. Allocated memory was 96.5MB in the beginning and 172.0MB in the end (delta: 75.5MB). Free memory was 61.3MB in the beginning and 105.2MB in the end (delta: -43.9MB). Peak memory consumption was 69.1MB. Max. memory is 16.1GB. * Witness Printer took 114.39ms. Allocated memory is still 172.0MB. Free memory was 105.2MB in the beginning and 99.9MB in the end (delta: 5.2MB). 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: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 12]: 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, 112 locations, 47 error locations. Started 1 CEGAR loops. OverallTime: 7.1s, OverallIterations: 16, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 734 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 726 mSDsluCounter, 2610 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1727 mSDsCounter, 101 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1816 IncrementalHoareTripleChecker+Invalid, 1917 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 101 mSolverCounterUnsat, 883 mSDtfsCounter, 1816 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 720 GetRequests, 633 SyntacticMatches, 4 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=181occurred in iteration=8, InterpolantAutomatonStates: 91, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 16 MinimizatonAttempts, 70 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 1012 NumberOfCodeBlocks, 1012 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 845 ConstructedInterpolants, 0 QuantifiedInterpolants, 4477 SizeOfPredicates, 12 NumberOfNonLiveVariables, 950 ConjunctsInSsa, 66 ConjunctsInUnsatCore, 22 InterpolantComputations, 13 PerfectInterpolantSequences, 18/49 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 47 specifications checked. All of them hold - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: ((((((x == 0) && (counter == 0)) && (c == 0)) && (y == 0)) || (((y == 1) && (x == 1)) && (counter == 1))) && (\old(counter) == 0)) - ProcedureContractResult [Line: 18]: Procedure Contract for main Derived contract for procedure main. Requires: (counter == 0) Ensures: (\old(counter) == 0) - ProcedureContractResult [Line: 9]: 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 19:35:48,804 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