./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Singapore-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f474495-c251-4d04-8b88-85bfd43d84c1/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f474495-c251-4d04-8b88-85bfd43d84c1/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f474495-c251-4d04-8b88-85bfd43d84c1/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f474495-c251-4d04-8b88-85bfd43d84c1/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/Singapore-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f474495-c251-4d04-8b88-85bfd43d84c1/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f474495-c251-4d04-8b88-85bfd43d84c1/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 14352272474fcd72367ebff6d0f1f20f37763259fc59dc19b61cd8b29efae381 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:05:27,254 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:05:27,350 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f474495-c251-4d04-8b88-85bfd43d84c1/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-06 23:05:27,359 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:05:27,360 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:05:27,401 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:05:27,401 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:05:27,402 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:05:27,403 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 23:05:27,408 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 23:05:27,410 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:05:27,411 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:05:27,411 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:05:27,413 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:05:27,413 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 23:05:27,414 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 23:05:27,414 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:05:27,415 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 23:05:27,415 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 23:05:27,415 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 23:05:27,416 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 23:05:27,417 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 23:05:27,417 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 23:05:27,417 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:05:27,418 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:05:27,419 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:05:27,419 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 23:05:27,420 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:05:27,420 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:05:27,421 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 23:05:27,422 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 23:05:27,422 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 23:05:27,422 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 23:05:27,423 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 23:05:27,423 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 23:05:27,423 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 23:05:27,423 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 23:05:27,424 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 23:05:27,424 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f474495-c251-4d04-8b88-85bfd43d84c1/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f474495-c251-4d04-8b88-85bfd43d84c1/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14352272474fcd72367ebff6d0f1f20f37763259fc59dc19b61cd8b29efae381 [2023-11-06 23:05:27,716 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:05:27,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:05:27,758 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:05:27,760 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:05:27,761 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:05:27,762 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f474495-c251-4d04-8b88-85bfd43d84c1/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/termination-crafted/Singapore-2.c [2023-11-06 23:05:31,000 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:05:31,229 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:05:31,230 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f474495-c251-4d04-8b88-85bfd43d84c1/sv-benchmarks/c/termination-crafted/Singapore-2.c [2023-11-06 23:05:31,239 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f474495-c251-4d04-8b88-85bfd43d84c1/bin/uautomizer-verify-WvqO1wxjHP/data/60798e40d/5b927a9f628d43749f69842c4b1fcdb5/FLAG1747aabf0 [2023-11-06 23:05:31,258 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f474495-c251-4d04-8b88-85bfd43d84c1/bin/uautomizer-verify-WvqO1wxjHP/data/60798e40d/5b927a9f628d43749f69842c4b1fcdb5 [2023-11-06 23:05:31,262 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:05:31,264 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:05:31,266 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:05:31,266 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:05:31,273 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:05:31,274 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:05:31" (1/1) ... [2023-11-06 23:05:31,275 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35166fc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:31, skipping insertion in model container [2023-11-06 23:05:31,276 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:05:31" (1/1) ... [2023-11-06 23:05:31,301 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:05:31,485 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:05:31,492 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:05:31,508 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:05:31,520 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:05:31,520 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:31 WrapperNode [2023-11-06 23:05:31,521 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:05:31,522 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:05:31,522 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:05:31,522 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:05:31,531 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:31" (1/1) ... [2023-11-06 23:05:31,536 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:31" (1/1) ... [2023-11-06 23:05:31,557 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 35 [2023-11-06 23:05:31,557 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:05:31,558 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:05:31,558 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:05:31,558 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:05:31,569 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:31" (1/1) ... [2023-11-06 23:05:31,569 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:31" (1/1) ... [2023-11-06 23:05:31,570 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:31" (1/1) ... [2023-11-06 23:05:31,571 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:31" (1/1) ... [2023-11-06 23:05:31,573 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:31" (1/1) ... [2023-11-06 23:05:31,578 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:31" (1/1) ... [2023-11-06 23:05:31,579 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:31" (1/1) ... [2023-11-06 23:05:31,580 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:31" (1/1) ... [2023-11-06 23:05:31,582 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:05:31,583 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:05:31,583 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:05:31,583 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:05:31,584 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:31" (1/1) ... [2023-11-06 23:05:31,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:05:31,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f474495-c251-4d04-8b88-85bfd43d84c1/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:05:31,629 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f474495-c251-4d04-8b88-85bfd43d84c1/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 23:05:31,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f474495-c251-4d04-8b88-85bfd43d84c1/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 23:05:31,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:05:31,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:05:31,777 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:05:31,779 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:05:31,921 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:05:31,928 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:05:31,929 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 23:05:31,931 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:05:31 BoogieIcfgContainer [2023-11-06 23:05:31,931 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:05:31,934 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 23:05:31,935 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 23:05:31,939 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 23:05:31,939 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:05:31" (1/3) ... [2023-11-06 23:05:31,940 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b6a3c83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:05:31, skipping insertion in model container [2023-11-06 23:05:31,940 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:05:31" (2/3) ... [2023-11-06 23:05:31,941 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b6a3c83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:05:31, skipping insertion in model container [2023-11-06 23:05:31,941 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:05:31" (3/3) ... [2023-11-06 23:05:31,943 INFO L112 eAbstractionObserver]: Analyzing ICFG Singapore-2.c [2023-11-06 23:05:31,962 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 23:05:31,962 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-06 23:05:32,020 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 23:05:32,030 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@7847b1b5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 23:05:32,030 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-06 23:05:32,035 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 17 states have (on average 1.7647058823529411) internal successors, (30), 25 states have internal predecessors, (30), 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) [2023-11-06 23:05:32,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-06 23:05:32,043 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:05:32,044 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 23:05:32,045 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 23:05:32,070 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:05:32,070 INFO L85 PathProgramCache]: Analyzing trace with hash 28695845, now seen corresponding path program 1 times [2023-11-06 23:05:32,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:05:32,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765103711] [2023-11-06 23:05:32,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:05:32,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:05:32,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:05:32,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:05:32,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:05:32,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765103711] [2023-11-06 23:05:32,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765103711] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:05:32,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:05:32,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:05:32,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986303743] [2023-11-06 23:05:32,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:05:32,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:05:32,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:05:32,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:05:32,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:05:32,420 INFO L87 Difference]: Start difference. First operand has 26 states, 17 states have (on average 1.7647058823529411) internal successors, (30), 25 states have internal predecessors, (30), 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) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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) [2023-11-06 23:05:32,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:05:32,600 INFO L93 Difference]: Finished difference Result 41 states and 47 transitions. [2023-11-06 23:05:32,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:05:32,605 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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) Word has length 5 [2023-11-06 23:05:32,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:05:32,616 INFO L225 Difference]: With dead ends: 41 [2023-11-06 23:05:32,616 INFO L226 Difference]: Without dead ends: 27 [2023-11-06 23:05:32,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:05:32,629 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 34 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 23:05:32,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 25 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 23:05:32,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-11-06 23:05:32,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2023-11-06 23:05:32,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 23 states have internal predecessors, (25), 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) [2023-11-06 23:05:32,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2023-11-06 23:05:32,679 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 5 [2023-11-06 23:05:32,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:05:32,679 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2023-11-06 23:05:32,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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) [2023-11-06 23:05:32,680 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2023-11-06 23:05:32,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-06 23:05:32,681 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:05:32,681 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 23:05:32,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 23:05:32,683 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 23:05:32,685 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:05:32,686 INFO L85 PathProgramCache]: Analyzing trace with hash 889571241, now seen corresponding path program 1 times [2023-11-06 23:05:32,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:05:32,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941882989] [2023-11-06 23:05:32,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:05:32,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:05:32,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:05:32,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:05:32,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:05:32,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941882989] [2023-11-06 23:05:32,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941882989] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:05:32,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:05:32,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:05:32,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009798135] [2023-11-06 23:05:32,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:05:32,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:05:32,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:05:32,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:05:32,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:05:32,813 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2023-11-06 23:05:32,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:05:32,909 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2023-11-06 23:05:32,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:05:32,911 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) Word has length 6 [2023-11-06 23:05:32,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:05:32,913 INFO L225 Difference]: With dead ends: 27 [2023-11-06 23:05:32,913 INFO L226 Difference]: Without dead ends: 24 [2023-11-06 23:05:32,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:05:32,921 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 14 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 23:05:32,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 17 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 23:05:32,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-11-06 23:05:32,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2023-11-06 23:05:32,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.263157894736842) internal successors, (24), 23 states have internal predecessors, (24), 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) [2023-11-06 23:05:32,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2023-11-06 23:05:32,938 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 6 [2023-11-06 23:05:32,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:05:32,939 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2023-11-06 23:05:32,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2023-11-06 23:05:32,939 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2023-11-06 23:05:32,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-06 23:05:32,941 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:05:32,941 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:05:32,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 23:05:32,944 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 23:05:32,945 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:05:32,945 INFO L85 PathProgramCache]: Analyzing trace with hash 794299758, now seen corresponding path program 1 times [2023-11-06 23:05:32,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:05:32,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115284375] [2023-11-06 23:05:32,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:05:32,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:05:32,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:05:33,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:05:33,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:05:33,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115284375] [2023-11-06 23:05:33,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115284375] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:05:33,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:05:33,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:05:33,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932480303] [2023-11-06 23:05:33,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:05:33,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:05:33,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:05:33,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:05:33,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:05:33,055 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2023-11-06 23:05:33,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:05:33,084 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2023-11-06 23:05:33,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:05:33,085 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) Word has length 13 [2023-11-06 23:05:33,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:05:33,086 INFO L225 Difference]: With dead ends: 27 [2023-11-06 23:05:33,086 INFO L226 Difference]: Without dead ends: 26 [2023-11-06 23:05:33,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:05:33,088 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 2 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:05:33,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 17 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 23:05:33,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2023-11-06 23:05:33,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2023-11-06 23:05:33,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.25) internal successors, (25), 24 states have internal predecessors, (25), 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) [2023-11-06 23:05:33,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2023-11-06 23:05:33,100 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 13 [2023-11-06 23:05:33,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:05:33,101 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2023-11-06 23:05:33,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2023-11-06 23:05:33,102 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2023-11-06 23:05:33,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-06 23:05:33,107 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:05:33,107 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:05:33,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 23:05:33,108 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 23:05:33,113 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:05:33,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1146511208, now seen corresponding path program 1 times [2023-11-06 23:05:33,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:05:33,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200529501] [2023-11-06 23:05:33,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:05:33,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:05:33,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:05:33,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:05:33,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:05:33,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200529501] [2023-11-06 23:05:33,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200529501] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:05:33,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:05:33,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:05:33,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026789863] [2023-11-06 23:05:33,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:05:33,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:05:33,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:05:33,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:05:33,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:05:33,214 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2023-11-06 23:05:33,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:05:33,254 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2023-11-06 23:05:33,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:05:33,254 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) Word has length 14 [2023-11-06 23:05:33,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:05:33,256 INFO L225 Difference]: With dead ends: 25 [2023-11-06 23:05:33,257 INFO L226 Difference]: Without dead ends: 24 [2023-11-06 23:05:33,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:05:33,259 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:05:33,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 8 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 23:05:33,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-11-06 23:05:33,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2023-11-06 23:05:33,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 20 states have (on average 1.2) internal successors, (24), 23 states have internal predecessors, (24), 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) [2023-11-06 23:05:33,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2023-11-06 23:05:33,266 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 14 [2023-11-06 23:05:33,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:05:33,267 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2023-11-06 23:05:33,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2023-11-06 23:05:33,267 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2023-11-06 23:05:33,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-06 23:05:33,268 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:05:33,268 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:05:33,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 23:05:33,269 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 23:05:33,269 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:05:33,270 INFO L85 PathProgramCache]: Analyzing trace with hash -2135402076, now seen corresponding path program 1 times [2023-11-06 23:05:33,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:05:33,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25395403] [2023-11-06 23:05:33,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:05:33,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:05:33,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:05:33,355 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:05:33,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:05:33,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25395403] [2023-11-06 23:05:33,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25395403] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 23:05:33,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465438195] [2023-11-06 23:05:33,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:05:33,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:05:33,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f474495-c251-4d04-8b88-85bfd43d84c1/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:05:33,363 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f474495-c251-4d04-8b88-85bfd43d84c1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:05:33,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f474495-c251-4d04-8b88-85bfd43d84c1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 23:05:33,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:05:33,427 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 23:05:33,432 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:05:33,583 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:05:33,583 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:05:33,670 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:05:33,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465438195] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 23:05:33,671 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 23:05:33,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 7 [2023-11-06 23:05:33,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341639237] [2023-11-06 23:05:33,674 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 23:05:33,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 23:05:33,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:05:33,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 23:05:33,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-06 23:05:33,678 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 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) [2023-11-06 23:05:33,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:05:33,726 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2023-11-06 23:05:33,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 23:05:33,727 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 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) Word has length 17 [2023-11-06 23:05:33,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:05:33,728 INFO L225 Difference]: With dead ends: 24 [2023-11-06 23:05:33,728 INFO L226 Difference]: Without dead ends: 22 [2023-11-06 23:05:33,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-11-06 23:05:33,729 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:05:33,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 8 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 23:05:33,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-11-06 23:05:33,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-11-06 23:05:33,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 20 states have (on average 1.1) internal successors, (22), 21 states have internal predecessors, (22), 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) [2023-11-06 23:05:33,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2023-11-06 23:05:33,735 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 17 [2023-11-06 23:05:33,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:05:33,735 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2023-11-06 23:05:33,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 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) [2023-11-06 23:05:33,736 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2023-11-06 23:05:33,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-06 23:05:33,736 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:05:33,737 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:05:33,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f474495-c251-4d04-8b88-85bfd43d84c1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 23:05:33,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f474495-c251-4d04-8b88-85bfd43d84c1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:05:33,943 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 23:05:33,943 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:05:33,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1772954852, now seen corresponding path program 1 times [2023-11-06 23:05:33,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:05:33,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558393075] [2023-11-06 23:05:33,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:05:33,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:05:33,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:05:34,029 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:05:34,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:05:34,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558393075] [2023-11-06 23:05:34,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558393075] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 23:05:34,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404556484] [2023-11-06 23:05:34,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:05:34,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:05:34,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f474495-c251-4d04-8b88-85bfd43d84c1/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:05:34,031 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f474495-c251-4d04-8b88-85bfd43d84c1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:05:34,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f474495-c251-4d04-8b88-85bfd43d84c1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 23:05:34,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:05:34,065 INFO L262 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 23:05:34,067 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:05:34,138 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:05:34,142 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:05:34,231 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:05:34,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [404556484] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 23:05:34,231 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 23:05:34,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2023-11-06 23:05:34,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729458759] [2023-11-06 23:05:34,232 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 23:05:34,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 23:05:34,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:05:34,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 23:05:34,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-06 23:05:34,241 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand has 9 states, 8 states have (on average 4.625) internal successors, (37), 9 states have internal predecessors, (37), 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) [2023-11-06 23:05:34,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:05:34,396 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2023-11-06 23:05:34,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 23:05:34,397 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.625) internal successors, (37), 9 states have internal predecessors, (37), 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) Word has length 18 [2023-11-06 23:05:34,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:05:34,402 INFO L225 Difference]: With dead ends: 38 [2023-11-06 23:05:34,403 INFO L226 Difference]: Without dead ends: 36 [2023-11-06 23:05:34,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2023-11-06 23:05:34,408 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 23 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 23:05:34,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 13 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 23:05:34,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-11-06 23:05:34,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 28. [2023-11-06 23:05:34,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.037037037037037) internal successors, (28), 27 states have internal predecessors, (28), 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) [2023-11-06 23:05:34,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2023-11-06 23:05:34,422 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 18 [2023-11-06 23:05:34,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:05:34,423 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2023-11-06 23:05:34,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.625) internal successors, (37), 9 states have internal predecessors, (37), 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) [2023-11-06 23:05:34,423 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2023-11-06 23:05:34,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-06 23:05:34,424 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:05:34,425 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:05:34,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f474495-c251-4d04-8b88-85bfd43d84c1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 23:05:34,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f474495-c251-4d04-8b88-85bfd43d84c1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-06 23:05:34,631 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 23:05:34,631 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:05:34,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1601675410, now seen corresponding path program 1 times [2023-11-06 23:05:34,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:05:34,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696098515] [2023-11-06 23:05:34,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:05:34,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:05:34,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:05:34,705 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:05:34,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:05:34,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696098515] [2023-11-06 23:05:34,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696098515] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 23:05:34,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1544350236] [2023-11-06 23:05:34,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:05:34,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:05:34,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f474495-c251-4d04-8b88-85bfd43d84c1/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:05:34,707 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f474495-c251-4d04-8b88-85bfd43d84c1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:05:34,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f474495-c251-4d04-8b88-85bfd43d84c1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 23:05:34,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:05:34,761 INFO L262 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 23:05:34,763 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:05:34,870 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:05:34,870 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:05:35,130 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:05:35,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1544350236] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 23:05:35,130 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 23:05:35,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 16 [2023-11-06 23:05:35,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623321769] [2023-11-06 23:05:35,131 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 23:05:35,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-06 23:05:35,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:05:35,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-06 23:05:35,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-11-06 23:05:35,135 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand has 17 states, 16 states have (on average 4.8125) internal successors, (77), 17 states have internal predecessors, (77), 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) [2023-11-06 23:05:35,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:05:35,485 INFO L93 Difference]: Finished difference Result 48 states and 50 transitions. [2023-11-06 23:05:35,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-06 23:05:35,486 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.8125) internal successors, (77), 17 states have internal predecessors, (77), 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) Word has length 27 [2023-11-06 23:05:35,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:05:35,486 INFO L225 Difference]: With dead ends: 48 [2023-11-06 23:05:35,487 INFO L226 Difference]: Without dead ends: 0 [2023-11-06 23:05:35,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=288, Invalid=582, Unknown=0, NotChecked=0, Total=870 [2023-11-06 23:05:35,489 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 39 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 23:05:35,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 15 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 23:05:35,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-06 23:05:35,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-06 23:05:35,491 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) [2023-11-06 23:05:35,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-06 23:05:35,491 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2023-11-06 23:05:35,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:05:35,492 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 23:05:35,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.8125) internal successors, (77), 17 states have internal predecessors, (77), 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) [2023-11-06 23:05:35,492 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-06 23:05:35,492 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-06 23:05:35,495 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2023-11-06 23:05:35,496 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2023-11-06 23:05:35,496 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2023-11-06 23:05:35,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2023-11-06 23:05:35,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2023-11-06 23:05:35,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2023-11-06 23:05:35,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2023-11-06 23:05:35,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2023-11-06 23:05:35,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f474495-c251-4d04-8b88-85bfd43d84c1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 23:05:35,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f474495-c251-4d04-8b88-85bfd43d84c1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:05:35,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-06 23:05:35,804 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2023-11-06 23:05:35,804 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-06 23:05:35,805 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2023-11-06 23:05:35,805 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2023-11-06 23:05:35,805 INFO L899 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2023-11-06 23:05:35,805 INFO L899 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2023-11-06 23:05:35,805 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-11-06 23:05:35,806 INFO L899 garLoopResultBuilder]: For program point L21-2(line 21) no Hoare annotation was computed. [2023-11-06 23:05:35,806 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-11-06 23:05:35,806 INFO L899 garLoopResultBuilder]: For program point L21-3(line 21) no Hoare annotation was computed. [2023-11-06 23:05:35,806 INFO L899 garLoopResultBuilder]: For program point L17(line 17) no Hoare annotation was computed. [2023-11-06 23:05:35,806 INFO L899 garLoopResultBuilder]: For program point L19-2(lines 19 24) no Hoare annotation was computed. [2023-11-06 23:05:35,807 INFO L899 garLoopResultBuilder]: For program point L19-3(lines 19 24) no Hoare annotation was computed. [2023-11-06 23:05:35,807 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-06 23:05:35,807 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 10 26) the Hoare annotation is: true [2023-11-06 23:05:35,807 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2023-11-06 23:05:35,807 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-06 23:05:35,808 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2023-11-06 23:05:35,808 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2023-11-06 23:05:35,808 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2023-11-06 23:05:35,808 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-06 23:05:35,809 INFO L899 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2023-11-06 23:05:35,809 INFO L899 garLoopResultBuilder]: For program point L22-1(line 22) no Hoare annotation was computed. [2023-11-06 23:05:35,809 INFO L899 garLoopResultBuilder]: For program point L18(line 18) no Hoare annotation was computed. [2023-11-06 23:05:35,810 INFO L895 garLoopResultBuilder]: At program point L20-2(lines 20 23) the Hoare annotation is: (and (<= 0 (+ 2147483650 |ULTIMATE.start_main_~y~0#1|)) (or (< |ULTIMATE.start_main_~x~0#1| 1) (< 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483648))) (<= |ULTIMATE.start_main_~x~0#1| 65535) (<= (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|) 0) (<= |ULTIMATE.start_main_~y~0#1| 2147483647)) [2023-11-06 23:05:35,810 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2023-11-06 23:05:35,814 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:05:35,817 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 23:05:35,832 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 11:05:35 BoogieIcfgContainer [2023-11-06 23:05:35,832 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 23:05:35,833 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 23:05:35,833 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 23:05:35,833 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 23:05:35,834 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:05:31" (3/4) ... [2023-11-06 23:05:35,837 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 23:05:35,846 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-06 23:05:35,846 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 23:05:35,846 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-06 23:05:35,921 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f474495-c251-4d04-8b88-85bfd43d84c1/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 23:05:35,921 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f474495-c251-4d04-8b88-85bfd43d84c1/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 23:05:35,922 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 23:05:35,922 INFO L158 Benchmark]: Toolchain (without parser) took 4658.77ms. Allocated memory was 136.3MB in the beginning and 174.1MB in the end (delta: 37.7MB). Free memory was 93.9MB in the beginning and 93.7MB in the end (delta: 198.6kB). Peak memory consumption was 39.3MB. Max. memory is 16.1GB. [2023-11-06 23:05:35,923 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 107.0MB. Free memory is still 55.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:05:35,923 INFO L158 Benchmark]: CACSL2BoogieTranslator took 255.43ms. Allocated memory is still 136.3MB. Free memory was 93.6MB in the beginning and 84.1MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 23:05:35,924 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.19ms. Allocated memory is still 136.3MB. Free memory was 84.1MB in the beginning and 82.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:05:35,924 INFO L158 Benchmark]: Boogie Preprocessor took 23.91ms. Allocated memory is still 136.3MB. Free memory was 82.6MB in the beginning and 81.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 23:05:35,925 INFO L158 Benchmark]: RCFGBuilder took 349.04ms. Allocated memory is still 136.3MB. Free memory was 81.5MB in the beginning and 71.8MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 23:05:35,925 INFO L158 Benchmark]: TraceAbstraction took 3898.24ms. Allocated memory was 136.3MB in the beginning and 174.1MB in the end (delta: 37.7MB). Free memory was 71.3MB in the beginning and 96.8MB in the end (delta: -25.5MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2023-11-06 23:05:35,926 INFO L158 Benchmark]: Witness Printer took 88.54ms. Allocated memory is still 174.1MB. Free memory was 96.8MB in the beginning and 93.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 23:05:35,928 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 107.0MB. Free memory is still 55.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 255.43ms. Allocated memory is still 136.3MB. Free memory was 93.6MB in the beginning and 84.1MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.19ms. Allocated memory is still 136.3MB. Free memory was 84.1MB in the beginning and 82.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.91ms. Allocated memory is still 136.3MB. Free memory was 82.6MB in the beginning and 81.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 349.04ms. Allocated memory is still 136.3MB. Free memory was 81.5MB in the beginning and 71.8MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3898.24ms. Allocated memory was 136.3MB in the beginning and 174.1MB in the end (delta: 37.7MB). Free memory was 71.3MB in the beginning and 96.8MB in the end (delta: -25.5MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * Witness Printer took 88.54ms. Allocated memory is still 174.1MB. Free memory was 96.8MB in the beginning and 93.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. 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: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 3.8s, OverallIterations: 7, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 119 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 119 mSDsluCounter, 103 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 47 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 263 IncrementalHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 56 mSDtfsCounter, 263 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 161 GetRequests, 105 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=6, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 12 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 10 NumberOfFragments, 27 HoareAnnotationTreeSize, 2 FomulaSimplifications, 86 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 150 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 162 NumberOfCodeBlocks, 162 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 211 ConstructedInterpolants, 0 QuantifiedInterpolants, 968 SizeOfPredicates, 5 NumberOfNonLiveVariables, 101 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 13 InterpolantComputations, 4 PerfectInterpolantSequences, 0/78 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 8 specifications checked. All of them hold - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (((((0 <= (2147483650 + y)) && ((x < 1) || (0 < (y + 2147483648)))) && (x <= 65535)) && ((x + y) <= 0)) && (y <= 2147483647)) RESULT: Ultimate proved your program to be correct! [2023-11-06 23:05:35,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f474495-c251-4d04-8b88-85bfd43d84c1/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE