./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+sep-reducer.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 --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+sep-reducer.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 50620a1836495369f8d4c9773bdf114a4f3cd20fd05738366af3ab647304c819 --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-12 15:29:16,310 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 15:29:16,388 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 15:29:16,394 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 15:29:16,395 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 15:29:16,425 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 15:29:16,426 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 15:29:16,426 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 15:29:16,427 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 15:29:16,429 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 15:29:16,431 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 15:29:16,431 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 15:29:16,431 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 15:29:16,432 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 15:29:16,432 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 15:29:16,432 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 15:29:16,432 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 15:29:16,433 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 15:29:16,433 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 15:29:16,433 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 15:29:16,433 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 15:29:16,437 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 15:29:16,437 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 15:29:16,437 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 15:29:16,438 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 15:29:16,438 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 15:29:16,438 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 15:29:16,438 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 15:29:16,439 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 15:29:16,439 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 15:29:16,439 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 15:29:16,439 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 15:29:16,439 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 15:29:16,440 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 15:29:16,440 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 15:29:16,440 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 15:29:16,440 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 15:29:16,440 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 15:29:16,441 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 15:29:16,441 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 15:29:16,442 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 15:29:16,442 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 15:29:16,442 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50620a1836495369f8d4c9773bdf114a4f3cd20fd05738366af3ab647304c819 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 [2024-09-12 15:29:16,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 15:29:16,787 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 15:29:16,791 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 15:29:16,792 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 15:29:16,793 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 15:29:16,794 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+sep-reducer.c [2024-09-12 15:29:18,352 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 15:29:18,560 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 15:29:18,565 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-industry-pattern/mod3.c.v+sep-reducer.c [2024-09-12 15:29:18,575 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/9469976c7/4677184591844943a4d849ccee5ead4b/FLAG1f2dd96e8 [2024-09-12 15:29:18,589 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/9469976c7/4677184591844943a4d849ccee5ead4b [2024-09-12 15:29:18,591 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 15:29:18,592 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 15:29:18,594 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 15:29:18,595 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 15:29:18,600 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 15:29:18,601 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 03:29:18" (1/1) ... [2024-09-12 15:29:18,603 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@717a402 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 03:29:18, skipping insertion in model container [2024-09-12 15:29:18,603 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 03:29:18" (1/1) ... [2024-09-12 15:29:18,621 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 15:29:18,749 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-industry-pattern/mod3.c.v+sep-reducer.c[2057,2070] [2024-09-12 15:29:18,756 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 15:29:18,769 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 15:29:18,785 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-industry-pattern/mod3.c.v+sep-reducer.c[2057,2070] [2024-09-12 15:29:18,788 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 15:29:18,802 INFO L204 MainTranslator]: Completed translation [2024-09-12 15:29:18,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 03:29:18 WrapperNode [2024-09-12 15:29:18,803 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 15:29:18,804 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 15:29:18,804 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 15:29:18,804 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 15:29:18,811 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 03:29:18" (1/1) ... [2024-09-12 15:29:18,817 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 03:29:18" (1/1) ... [2024-09-12 15:29:18,823 INFO L138 Inliner]: procedures = 13, calls = 7, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 15:29:18,823 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 15:29:18,825 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 15:29:18,825 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 15:29:18,825 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 15:29:18,834 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 03:29:18" (1/1) ... [2024-09-12 15:29:18,835 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 03:29:18" (1/1) ... [2024-09-12 15:29:18,840 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 03:29:18" (1/1) ... [2024-09-12 15:29:18,862 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 15:29:18,865 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 03:29:18" (1/1) ... [2024-09-12 15:29:18,866 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 03:29:18" (1/1) ... [2024-09-12 15:29:18,869 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 03:29:18" (1/1) ... [2024-09-12 15:29:18,874 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 03:29:18" (1/1) ... [2024-09-12 15:29:18,876 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 03:29:18" (1/1) ... [2024-09-12 15:29:18,876 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 03:29:18" (1/1) ... [2024-09-12 15:29:18,881 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 15:29:18,882 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 15:29:18,882 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 15:29:18,882 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 15:29:18,883 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 03:29:18" (1/1) ... [2024-09-12 15:29:18,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 15:29:18,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 15:29:18,924 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 15:29:18,932 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 15:29:18,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 15:29:18,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 15:29:18,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 15:29:18,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 15:29:18,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 15:29:18,975 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 15:29:18,976 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 15:29:18,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 15:29:19,040 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 15:29:19,042 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 15:29:19,243 INFO L? ?]: Removed 32 outVars from TransFormulas that were not future-live. [2024-09-12 15:29:19,243 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 15:29:19,270 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 15:29:19,273 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-12 15:29:19,275 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 03:29:19 BoogieIcfgContainer [2024-09-12 15:29:19,275 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 15:29:19,276 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 15:29:19,278 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 15:29:19,281 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 15:29:19,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 03:29:18" (1/3) ... [2024-09-12 15:29:19,282 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e29a31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 03:29:19, skipping insertion in model container [2024-09-12 15:29:19,282 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 03:29:18" (2/3) ... [2024-09-12 15:29:19,282 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e29a31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 03:29:19, skipping insertion in model container [2024-09-12 15:29:19,283 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 03:29:19" (3/3) ... [2024-09-12 15:29:19,284 INFO L112 eAbstractionObserver]: Analyzing ICFG mod3.c.v+sep-reducer.c [2024-09-12 15:29:19,299 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 15:29:19,299 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-09-12 15:29:19,362 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 15:29:19,383 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;@43d2bff3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 15:29:19,383 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-12 15:29:19,388 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 22 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 15:29:19,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-09-12 15:29:19,395 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 15:29:19,396 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 15:29:19,396 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 15:29:19,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 15:29:19,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1355482744, now seen corresponding path program 1 times [2024-09-12 15:29:19,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 15:29:19,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260609308] [2024-09-12 15:29:19,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 15:29:19,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 15:29:19,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 15:29:20,179 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 15:29:20,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 15:29:20,194 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 15:29:20,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 15:29:20,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260609308] [2024-09-12 15:29:20,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260609308] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 15:29:20,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 15:29:20,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 15:29:20,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429237972] [2024-09-12 15:29:20,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 15:29:20,202 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 15:29:20,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 15:29:20,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 15:29:20,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-12 15:29:20,226 INFO L87 Difference]: Start difference. First operand has 27 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 22 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 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 15:29:24,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-12 15:29:28,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-12 15:29:32,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-12 15:29:36,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-12 15:29:36,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 15:29:36,597 INFO L93 Difference]: Finished difference Result 75 states and 108 transitions. [2024-09-12 15:29:36,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 15:29:36,602 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 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 14 [2024-09-12 15:29:36,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 15:29:36,609 INFO L225 Difference]: With dead ends: 75 [2024-09-12 15:29:36,609 INFO L226 Difference]: Without dead ends: 40 [2024-09-12 15:29:36,611 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-09-12 15:29:36,614 INFO L434 NwaCegarLoop]: 25 mSDtfsCounter, 25 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 5 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2024-09-12 15:29:36,617 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 88 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 126 Invalid, 4 Unknown, 0 Unchecked, 16.2s Time] [2024-09-12 15:29:36,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-09-12 15:29:36,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 33. [2024-09-12 15:29:36,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 29 states have internal predecessors, (38), 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 15:29:36,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 41 transitions. [2024-09-12 15:29:36,655 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 41 transitions. Word has length 14 [2024-09-12 15:29:36,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 15:29:36,655 INFO L474 AbstractCegarLoop]: Abstraction has 33 states and 41 transitions. [2024-09-12 15:29:36,656 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 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 15:29:36,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 15:29:36,656 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 41 transitions. [2024-09-12 15:29:36,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-09-12 15:29:36,657 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 15:29:36,657 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 15:29:36,658 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 15:29:36,658 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 15:29:36,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 15:29:36,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1368490669, now seen corresponding path program 1 times [2024-09-12 15:29:36,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 15:29:36,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960040087] [2024-09-12 15:29:36,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 15:29:36,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 15:29:36,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 15:29:37,133 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 15:29:37,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 15:29:37,142 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 15:29:37,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 15:29:37,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960040087] [2024-09-12 15:29:37,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960040087] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 15:29:37,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 15:29:37,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-09-12 15:29:37,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884835986] [2024-09-12 15:29:37,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 15:29:37,148 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 15:29:37,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 15:29:37,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 15:29:37,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-09-12 15:29:37,150 INFO L87 Difference]: Start difference. First operand 33 states and 41 transitions. Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 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 15:29:41,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-12 15:29:45,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-12 15:29:49,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-12 15:29:53,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-12 15:29:54,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-12 15:29:58,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-12 15:30:03,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-12 15:30:07,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-12 15:30:07,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 15:30:07,455 INFO L93 Difference]: Finished difference Result 61 states and 80 transitions. [2024-09-12 15:30:07,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 15:30:07,455 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 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 20 [2024-09-12 15:30:07,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 15:30:07,457 INFO L225 Difference]: With dead ends: 61 [2024-09-12 15:30:07,458 INFO L226 Difference]: Without dead ends: 41 [2024-09-12 15:30:07,459 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-09-12 15:30:07,460 INFO L434 NwaCegarLoop]: 17 mSDtfsCounter, 17 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 16 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.2s IncrementalHoareTripleChecker+Time [2024-09-12 15:30:07,462 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 54 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 87 Invalid, 7 Unknown, 0 Unchecked, 30.2s Time] [2024-09-12 15:30:07,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-09-12 15:30:07,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 35. [2024-09-12 15:30:07,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 31 states have internal predecessors, (40), 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 15:30:07,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 43 transitions. [2024-09-12 15:30:07,485 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 43 transitions. Word has length 20 [2024-09-12 15:30:07,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 15:30:07,486 INFO L474 AbstractCegarLoop]: Abstraction has 35 states and 43 transitions. [2024-09-12 15:30:07,487 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 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 15:30:07,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 15:30:07,487 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 43 transitions. [2024-09-12 15:30:07,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-09-12 15:30:07,488 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 15:30:07,489 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 15:30:07,489 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 15:30:07,489 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 15:30:07,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 15:30:07,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1827833930, now seen corresponding path program 1 times [2024-09-12 15:30:07,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 15:30:07,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649634301] [2024-09-12 15:30:07,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 15:30:07,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 15:30:07,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 15:30:07,904 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 15:30:07,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 15:30:07,909 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 15:30:07,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 15:30:07,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649634301] [2024-09-12 15:30:07,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649634301] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 15:30:07,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1371728095] [2024-09-12 15:30:07,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 15:30:07,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 15:30:07,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 15:30:07,912 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 15:30:07,914 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 15:30:08,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 15:30:08,074 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 15:30:08,080 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 15:30:08,390 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 15:30:08,391 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 15:30:20,474 WARN L876 $PredicateComparison]: unable to prove that (or (let ((.cse1 (+ c_main_~main__x~0 1))) (= (let ((.cse0 (div .cse1 4294967296))) (+ (* (div (+ (* (- 4294967296) .cse0) c_main_~main__x~0 1) 3) 3) (* 4294967296 .cse0))) .cse1)) (< (mod (mod c_main_~main__x~0 4294967296) 3) 2)) is different from true [2024-09-12 15:31:04,663 WARN L876 $PredicateComparison]: unable to prove that (or (= (let ((.cse0 (div (+ 6 c_main_~main__x~0) 4294967296))) (+ (* .cse0 4294967296) (* 3 (div (+ c_main_~main__x~0 (* .cse0 (- 4294967296))) 3)))) c_main_~main__x~0) (< (mod (mod (+ 5 c_main_~main__x~0) 4294967296) 3) 2)) is different from true [2024-09-12 15:31:36,798 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked. [2024-09-12 15:31:36,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1371728095] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 15:31:36,798 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 15:31:36,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 13 [2024-09-12 15:31:36,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139729368] [2024-09-12 15:31:36,799 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 15:31:36,799 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 15:31:36,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 15:31:36,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 15:31:36,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=86, Unknown=2, NotChecked=38, Total=156 [2024-09-12 15:31:36,803 INFO L87 Difference]: Start difference. First operand 35 states and 43 transitions. Second operand has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 12 states have internal predecessors, (47), 1 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 15:31:38,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 15:31:38,424 INFO L93 Difference]: Finished difference Result 86 states and 110 transitions. [2024-09-12 15:31:38,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 15:31:38,425 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 12 states have internal predecessors, (47), 1 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 21 [2024-09-12 15:31:38,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 15:31:38,426 INFO L225 Difference]: With dead ends: 86 [2024-09-12 15:31:38,426 INFO L226 Difference]: Without dead ends: 0 [2024-09-12 15:31:38,427 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 36 SyntacticMatches, 6 SemanticMatches, 19 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=87, Invalid=261, Unknown=2, NotChecked=70, Total=420 [2024-09-12 15:31:38,428 INFO L434 NwaCegarLoop]: 18 mSDtfsCounter, 26 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 110 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-09-12 15:31:38,428 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 90 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 190 Invalid, 0 Unknown, 110 Unchecked, 1.0s Time] [2024-09-12 15:31:38,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-12 15:31:38,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-12 15:31:38,429 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 15:31:38,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-12 15:31:38,429 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2024-09-12 15:31:38,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 15:31:38,430 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-12 15:31:38,430 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 12 states have internal predecessors, (47), 1 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 15:31:38,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 15:31:38,430 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-12 15:31:38,430 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-12 15:31:38,433 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-09-12 15:31:38,447 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-12 15:31:38,634 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 15:31:38,637 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-09-12 15:31:38,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-09-12 15:31:39,177 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-12 15:31:39,201 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.09 03:31:39 BoogieIcfgContainer [2024-09-12 15:31:39,201 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-12 15:31:39,202 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-09-12 15:31:39,202 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-09-12 15:31:39,202 INFO L274 PluginConnector]: Witness Printer initialized [2024-09-12 15:31:39,202 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 03:29:19" (3/4) ... [2024-09-12 15:31:39,204 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-09-12 15:31:39,207 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2024-09-12 15:31:39,208 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2024-09-12 15:31:39,211 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-09-12 15:31:39,212 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-09-12 15:31:39,212 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-09-12 15:31:39,212 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-09-12 15:31:39,237 WARN L216 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((main__x < ((((main__x / 4294967296) * 4294967296) + (3 * ((((main__x / 4294967296) * -4294967296) + main__x) / 3))) + 2)) || (((((((((\old(__tmp_28_0) == __tmp_28_0) && (\old(__return_65) == __return_65)) && (\old(__tmp_31_0) == __tmp_31_0)) && (main__x <= 2147483647)) && (0 <= (2147483648 + main__x))) && (\old(__tmp_22_1) == __tmp_22_1)) && (\old(__tmp_25_1) == __tmp_25_1)) && (\old(__tmp_25_0) == __tmp_25_0)) && (\old(__tmp_22_0) == __tmp_22_0))) || (((long long) 1431655765 * main__x) < ((((((char) (-1 * (main__x / 4294967296)) + -5) + main__x) / 3) * 4294967296) + 7158278826))) [2024-09-12 15:31:39,312 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.graphml [2024-09-12 15:31:39,312 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml [2024-09-12 15:31:39,312 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-09-12 15:31:39,313 INFO L158 Benchmark]: Toolchain (without parser) took 140720.47ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 40.0MB in the beginning and 46.0MB in the end (delta: -6.0MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2024-09-12 15:31:39,313 INFO L158 Benchmark]: CDTParser took 1.43ms. Allocated memory is still 44.0MB. Free memory was 20.4MB in the beginning and 20.4MB in the end (delta: 42.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 15:31:39,313 INFO L158 Benchmark]: CACSL2BoogieTranslator took 209.75ms. Allocated memory is still 62.9MB. Free memory was 39.7MB in the beginning and 27.6MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-12 15:31:39,313 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.71ms. Allocated memory is still 62.9MB. Free memory was 27.4MB in the beginning and 26.5MB in the end (delta: 910.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 15:31:39,313 INFO L158 Benchmark]: Boogie Preprocessor took 56.62ms. Allocated memory is still 62.9MB. Free memory was 26.5MB in the beginning and 42.6MB in the end (delta: -16.2MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. [2024-09-12 15:31:39,314 INFO L158 Benchmark]: RCFGBuilder took 392.61ms. Allocated memory is still 62.9MB. Free memory was 42.6MB in the beginning and 28.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-12 15:31:39,314 INFO L158 Benchmark]: TraceAbstraction took 139924.64ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 27.4MB in the beginning and 50.8MB in the end (delta: -23.4MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2024-09-12 15:31:39,315 INFO L158 Benchmark]: Witness Printer took 110.55ms. Allocated memory is still 75.5MB. Free memory was 50.8MB in the beginning and 46.0MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-12 15:31:39,317 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.43ms. Allocated memory is still 44.0MB. Free memory was 20.4MB in the beginning and 20.4MB in the end (delta: 42.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 209.75ms. Allocated memory is still 62.9MB. Free memory was 39.7MB in the beginning and 27.6MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.71ms. Allocated memory is still 62.9MB. Free memory was 27.4MB in the beginning and 26.5MB in the end (delta: 910.4kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 56.62ms. Allocated memory is still 62.9MB. Free memory was 26.5MB in the beginning and 42.6MB in the end (delta: -16.2MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. * RCFGBuilder took 392.61ms. Allocated memory is still 62.9MB. Free memory was 42.6MB in the beginning and 28.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 139924.64ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 27.4MB in the beginning and 50.8MB in the end (delta: -23.4MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. * Witness Printer took 110.55ms. Allocated memory is still 75.5MB. Free memory was 50.8MB in the beginning and 46.0MB in the end (delta: 4.9MB). 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: 97]: 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 3 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 139.3s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 48.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 11 mSolverCounterUnknown, 68 SdHoareTripleChecker+Valid, 47.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 68 mSDsluCounter, 232 SdHoareTripleChecker+Invalid, 47.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 110 IncrementalHoareTripleChecker+Unchecked, 172 mSDsCounter, 40 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 403 IncrementalHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 40 mSolverCounterUnsat, 60 mSDtfsCounter, 403 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 82 GetRequests, 42 SyntacticMatches, 8 SemanticMatches, 32 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 9.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=2, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 13 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 90.2s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 1458 SizeOfPredicates, 0 NumberOfNonLiveVariables, 152 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 6/15 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 1 specifications checked. All of them hold - InvariantResult [Line: 16]: Location Invariant Derived location invariant: (((main__x < ((((main__x / 4294967296) * 4294967296) + (3 * ((((main__x / 4294967296) * -4294967296) + main__x) / 3))) + 2)) || (((((((((\old(__tmp_28_0) == __tmp_28_0) && (\old(__return_65) == __return_65)) && (\old(__tmp_31_0) == __tmp_31_0)) && (main__x <= 2147483647)) && (0 <= (2147483648 + main__x))) && (\old(__tmp_22_1) == __tmp_22_1)) && (\old(__tmp_25_1) == __tmp_25_1)) && (\old(__tmp_25_0) == __tmp_25_0)) && (\old(__tmp_22_0) == __tmp_22_0))) || (((long long) 1431655765 * main__x) < ((((((char) (-1 * (main__x / 4294967296)) + -5) + main__x) / 3) * 4294967296) + 7158278826))) - InvariantResult [Line: 24]: Location Invariant Derived location invariant: ((((main__x / 4294967296) * 4294967296) + (3 * ((((main__x / 4294967296) * -4294967296) + main__x) / 3))) == main__x) - InvariantResult [Line: 35]: Location Invariant Derived location invariant: ((main__x < ((((main__x / 4294967296) * 4294967296) + (3 * ((((main__x / 4294967296) * -4294967296) + main__x) / 3))) + 2)) || (((long long) 1431655765 * main__x) < ((((((char) (-1 * (main__x / 4294967296)) + -5) + main__x) / 3) * 4294967296) + 7158278826))) - InvariantResult [Line: 24]: Location Invariant Derived location invariant: ((((main__x / 4294967296) * 4294967296) + (3 * ((((main__x / 4294967296) * -4294967296) + main__x) / 3))) == main__x) - InvariantResult [Line: 36]: Location Invariant Derived location invariant: ((((main__x / 4294967296) * 4294967296) + (3 * ((((main__x / 4294967296) * -4294967296) + main__x) / 3))) == main__x) - InvariantResult [Line: 35]: Location Invariant Derived location invariant: ((main__x < ((((main__x / 4294967296) * 4294967296) + (3 * ((((main__x / 4294967296) * -4294967296) + main__x) / 3))) + 1)) || (((long long) 1431655765 * main__x) < ((((((char) (-1 * (main__x / 4294967296)) + -4) + main__x) / 3) * 4294967296) + 5726623061))) RESULT: Ultimate proved your program to be correct! [2024-09-12 15:31:39,357 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