./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-crafted/bor2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-crafted/bor2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5a66d4c531614f6a758ec8a672ead44330d05e74c75b0a444a0f213a0e825065 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:44:19,124 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:44:19,231 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-14 05:44:19,236 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:44:19,236 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:44:19,269 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:44:19,270 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:44:19,270 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:44:19,270 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:44:19,271 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:44:19,271 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:44:19,271 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:44:19,271 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:44:19,271 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:44:19,271 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:44:19,271 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:44:19,271 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:44:19,271 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:44:19,272 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:44:19,272 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:44:19,272 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:44:19,272 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:44:19,274 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:44:19,274 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:44:19,274 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:44:19,274 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:44:19,275 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:44:19,275 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:44:19,275 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:44:19,275 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:44:19,275 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:44:19,275 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:44:19,275 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 05:44:19,275 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 05:44:19,275 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:44:19,275 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:44:19,275 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:44:19,276 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:44:19,276 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:44:19,276 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:44:19,276 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:44:19,276 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:44:19,276 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:44:19,276 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:44:19,276 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:44:19,276 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:44:19,276 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:44:19,276 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:44:19,277 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:44:19,277 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a66d4c531614f6a758ec8a672ead44330d05e74c75b0a444a0f213a0e825065 [2024-11-14 05:44:19,632 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:44:19,651 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:44:19,656 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:44:19,659 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:44:19,659 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:44:19,661 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/array-crafted/bor2.i Unable to find full path for "g++" [2024-11-14 05:44:21,599 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:44:21,955 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:44:21,958 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/sv-benchmarks/c/array-crafted/bor2.i [2024-11-14 05:44:21,971 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/data/8d63fb147/4fc3c3704b204bdea71f4edffb0660e3/FLAG4f80ae42a [2024-11-14 05:44:22,001 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/data/8d63fb147/4fc3c3704b204bdea71f4edffb0660e3 [2024-11-14 05:44:22,006 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:44:22,009 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:44:22,010 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:44:22,011 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:44:22,018 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:44:22,019 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:44:22" (1/1) ... [2024-11-14 05:44:22,020 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46273722 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:44:22, skipping insertion in model container [2024-11-14 05:44:22,020 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:44:22" (1/1) ... [2024-11-14 05:44:22,043 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:44:22,313 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:44:22,329 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:44:22,369 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:44:22,391 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:44:22,392 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:44:22 WrapperNode [2024-11-14 05:44:22,393 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:44:22,394 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:44:22,395 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:44:22,395 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:44:22,406 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:44:22" (1/1) ... [2024-11-14 05:44:22,414 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:44:22" (1/1) ... [2024-11-14 05:44:22,435 INFO L138 Inliner]: procedures = 16, calls = 31, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 82 [2024-11-14 05:44:22,435 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:44:22,436 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:44:22,436 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:44:22,436 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:44:22,445 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:44:22" (1/1) ... [2024-11-14 05:44:22,445 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:44:22" (1/1) ... [2024-11-14 05:44:22,447 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:44:22" (1/1) ... [2024-11-14 05:44:22,448 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:44:22" (1/1) ... [2024-11-14 05:44:22,454 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:44:22" (1/1) ... [2024-11-14 05:44:22,464 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:44:22" (1/1) ... [2024-11-14 05:44:22,465 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:44:22" (1/1) ... [2024-11-14 05:44:22,465 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:44:22" (1/1) ... [2024-11-14 05:44:22,470 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:44:22,471 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:44:22,471 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:44:22,471 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:44:22,472 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:44:22" (1/1) ... [2024-11-14 05:44:22,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:44:22,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:44:22,521 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:44:22,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:44:22,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:44:22,556 INFO L130 BoogieDeclarations]: Found specification of procedure bor [2024-11-14 05:44:22,556 INFO L138 BoogieDeclarations]: Found implementation of procedure bor [2024-11-14 05:44:22,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:44:22,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 05:44:22,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 05:44:22,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:44:22,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:44:22,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 05:44:22,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 05:44:22,649 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:44:22,651 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:44:22,898 INFO L? ?]: Removed 31 outVars from TransFormulas that were not future-live. [2024-11-14 05:44:22,901 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:44:22,991 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:44:22,991 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-14 05:44:22,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:44:22 BoogieIcfgContainer [2024-11-14 05:44:22,992 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:44:22,995 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:44:22,995 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:44:23,001 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:44:23,001 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:44:22" (1/3) ... [2024-11-14 05:44:23,002 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52fdaf99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:44:23, skipping insertion in model container [2024-11-14 05:44:23,002 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:44:22" (2/3) ... [2024-11-14 05:44:23,003 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52fdaf99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:44:23, skipping insertion in model container [2024-11-14 05:44:23,003 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:44:22" (3/3) ... [2024-11-14 05:44:23,004 INFO L112 eAbstractionObserver]: Analyzing ICFG bor2.i [2024-11-14 05:44:23,022 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:44:23,024 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG bor2.i that has 2 procedures, 29 locations, 1 initial locations, 3 loop locations, and 8 error locations. [2024-11-14 05:44:23,081 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:44:23,095 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@5f9fed3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:44:23,095 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-14 05:44:23,100 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 16 states have (on average 1.6875) internal successors, (27), 24 states have internal predecessors, (27), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:44:23,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-14 05:44:23,110 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:44:23,111 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-14 05:44:23,111 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-14 05:44:23,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:44:23,118 INFO L85 PathProgramCache]: Analyzing trace with hash 129126, now seen corresponding path program 1 times [2024-11-14 05:44:23,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:44:23,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69895970] [2024-11-14 05:44:23,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:44:23,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:44:23,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:44:23,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:44:23,420 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:44:23,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69895970] [2024-11-14 05:44:23,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69895970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:44:23,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:44:23,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:44:23,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696901496] [2024-11-14 05:44:23,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:44:23,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:44:23,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:44:23,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:44:23,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:44:23,456 INFO L87 Difference]: Start difference. First operand has 29 states, 16 states have (on average 1.6875) internal successors, (27), 24 states have internal predecessors, (27), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:44:23,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:44:23,547 INFO L93 Difference]: Finished difference Result 57 states and 65 transitions. [2024-11-14 05:44:23,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:44:23,552 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2024-11-14 05:44:23,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:44:23,561 INFO L225 Difference]: With dead ends: 57 [2024-11-14 05:44:23,562 INFO L226 Difference]: Without dead ends: 30 [2024-11-14 05:44:23,565 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:44:23,568 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 1 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:44:23,569 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 70 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:44:23,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-14 05:44:23,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-11-14 05:44:23,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 26 states have internal predecessors, (29), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:44:23,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2024-11-14 05:44:23,609 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 3 [2024-11-14 05:44:23,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:44:23,609 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2024-11-14 05:44:23,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:44:23,609 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2024-11-14 05:44:23,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-14 05:44:23,611 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:44:23,611 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2024-11-14 05:44:23,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:44:23,612 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-14 05:44:23,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:44:23,613 INFO L85 PathProgramCache]: Analyzing trace with hash -448100281, now seen corresponding path program 1 times [2024-11-14 05:44:23,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:44:23,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097823009] [2024-11-14 05:44:23,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:44:23,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:44:23,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:44:23,863 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:44:23,863 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:44:23,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097823009] [2024-11-14 05:44:23,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097823009] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:44:23,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1170226310] [2024-11-14 05:44:23,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:44:23,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:44:23,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:44:23,867 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:44:23,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 05:44:23,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:44:23,949 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:44:23,953 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:44:24,040 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:44:24,041 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:44:24,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1170226310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:44:24,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:44:24,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-14 05:44:24,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093835287] [2024-11-14 05:44:24,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:44:24,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:44:24,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:44:24,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:44:24,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-14 05:44:24,046 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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) [2024-11-14 05:44:24,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:44:24,148 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2024-11-14 05:44:24,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:44:24,150 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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 [2024-11-14 05:44:24,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:44:24,150 INFO L225 Difference]: With dead ends: 30 [2024-11-14 05:44:24,152 INFO L226 Difference]: Without dead ends: 29 [2024-11-14 05:44:24,153 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-14 05:44:24,154 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 1 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:44:24,155 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 105 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:44:24,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-14 05:44:24,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-11-14 05:44:24,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 25 states have internal predecessors, (28), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:44:24,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2024-11-14 05:44:24,169 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 6 [2024-11-14 05:44:24,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:44:24,169 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2024-11-14 05:44:24,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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) [2024-11-14 05:44:24,170 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2024-11-14 05:44:24,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-14 05:44:24,170 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:44:24,171 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2024-11-14 05:44:24,194 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 05:44:24,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:44:24,372 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-14 05:44:24,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:44:24,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1006206748, now seen corresponding path program 1 times [2024-11-14 05:44:24,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:44:24,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412697445] [2024-11-14 05:44:24,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:44:24,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:44:24,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:44:24,478 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 05:44:24,479 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:44:24,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412697445] [2024-11-14 05:44:24,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412697445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:44:24,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:44:24,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:44:24,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927404180] [2024-11-14 05:44:24,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:44:24,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:44:24,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:44:24,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:44:24,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:44:24,481 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:44:24,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:44:24,513 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2024-11-14 05:44:24,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:44:24,514 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2024-11-14 05:44:24,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:44:24,515 INFO L225 Difference]: With dead ends: 29 [2024-11-14 05:44:24,517 INFO L226 Difference]: Without dead ends: 28 [2024-11-14 05:44:24,518 INFO L431 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 [2024-11-14 05:44:24,519 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:44:24,519 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 43 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:44:24,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-14 05:44:24,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2024-11-14 05:44:24,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 16 states have (on average 1.5625) internal successors, (25), 22 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:44:24,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2024-11-14 05:44:24,530 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 7 [2024-11-14 05:44:24,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:44:24,532 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2024-11-14 05:44:24,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:44:24,533 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2024-11-14 05:44:24,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-14 05:44:24,533 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:44:24,533 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:44:24,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 05:44:24,534 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-14 05:44:24,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:44:24,537 INFO L85 PathProgramCache]: Analyzing trace with hash -536487186, now seen corresponding path program 1 times [2024-11-14 05:44:24,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:44:24,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157849226] [2024-11-14 05:44:24,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:44:24,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:44:24,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:44:24,697 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:44:24,698 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:44:24,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157849226] [2024-11-14 05:44:24,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157849226] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:44:24,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321030146] [2024-11-14 05:44:24,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:44:24,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:44:24,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:44:24,701 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:44:24,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 05:44:24,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:44:24,773 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:44:24,775 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:44:24,819 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:44:24,820 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:44:24,873 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:44:24,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [321030146] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:44:24,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1980392780] [2024-11-14 05:44:24,901 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2024-11-14 05:44:24,901 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:44:24,904 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:44:24,911 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:44:24,912 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:44:26,174 INFO L197 IcfgInterpreter]: Interpreting procedure bor with input of size 10 for LOIs [2024-11-14 05:44:26,299 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:44:26,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1980392780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:44:26,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:44:26,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4, 4, 4] total 16 [2024-11-14 05:44:26,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147352617] [2024-11-14 05:44:26,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:44:26,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 05:44:26,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:44:26,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 05:44:26,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2024-11-14 05:44:26,719 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 9 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:44:26,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:44:26,936 INFO L93 Difference]: Finished difference Result 49 states and 60 transitions. [2024-11-14 05:44:26,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 05:44:26,937 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-14 05:44:26,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:44:26,938 INFO L225 Difference]: With dead ends: 49 [2024-11-14 05:44:26,938 INFO L226 Difference]: Without dead ends: 29 [2024-11-14 05:44:26,939 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2024-11-14 05:44:26,939 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 21 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:44:26,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 69 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:44:26,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-14 05:44:26,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-11-14 05:44:26,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 25 states have internal predecessors, (28), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:44:26,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2024-11-14 05:44:26,947 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 9 [2024-11-14 05:44:26,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:44:26,947 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2024-11-14 05:44:26,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:44:26,947 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2024-11-14 05:44:26,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-14 05:44:26,948 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:44:26,948 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:44:26,969 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 05:44:27,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:44:27,149 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-14 05:44:27,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:44:27,149 INFO L85 PathProgramCache]: Analyzing trace with hash -916392462, now seen corresponding path program 1 times [2024-11-14 05:44:27,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:44:27,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759039208] [2024-11-14 05:44:27,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:44:27,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:44:27,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:44:27,250 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:44:27,250 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:44:27,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759039208] [2024-11-14 05:44:27,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759039208] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:44:27,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327321277] [2024-11-14 05:44:27,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:44:27,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:44:27,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:44:27,253 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:44:27,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 05:44:27,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:44:27,323 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:44:27,324 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:44:27,350 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:44:27,350 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:44:27,390 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:44:27,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [327321277] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:44:27,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1412800288] [2024-11-14 05:44:27,393 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2024-11-14 05:44:27,393 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:44:27,394 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:44:27,394 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:44:27,394 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:44:27,792 INFO L197 IcfgInterpreter]: Interpreting procedure bor with input of size 10 for LOIs [2024-11-14 05:44:28,128 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:44:28,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1412800288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:44:28,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:44:28,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4, 4, 4] total 16 [2024-11-14 05:44:28,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41652650] [2024-11-14 05:44:28,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:44:28,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 05:44:28,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:44:28,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 05:44:28,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2024-11-14 05:44:28,452 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand has 9 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:44:28,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:44:28,595 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2024-11-14 05:44:28,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 05:44:28,596 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-14 05:44:28,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:44:28,597 INFO L225 Difference]: With dead ends: 29 [2024-11-14 05:44:28,597 INFO L226 Difference]: Without dead ends: 28 [2024-11-14 05:44:28,597 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2024-11-14 05:44:28,598 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 15 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:44:28,598 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 43 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:44:28,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-14 05:44:28,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-11-14 05:44:28,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 24 states have internal predecessors, (27), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:44:28,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2024-11-14 05:44:28,607 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 12 [2024-11-14 05:44:28,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:44:28,607 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2024-11-14 05:44:28,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:44:28,607 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2024-11-14 05:44:28,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-14 05:44:28,608 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:44:28,608 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:44:28,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-14 05:44:28,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:44:28,809 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-14 05:44:28,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:44:28,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1656604805, now seen corresponding path program 1 times [2024-11-14 05:44:28,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:44:28,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647652180] [2024-11-14 05:44:28,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:44:28,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:44:28,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:44:28,923 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 05:44:28,923 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:44:28,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647652180] [2024-11-14 05:44:28,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647652180] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:44:28,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182339984] [2024-11-14 05:44:28,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:44:28,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:44:28,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:44:28,926 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:44:28,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 05:44:29,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:44:29,008 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:44:29,009 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:44:29,037 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 05:44:29,037 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:44:29,074 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 05:44:29,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [182339984] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:44:29,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1074387212] [2024-11-14 05:44:29,077 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2024-11-14 05:44:29,079 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:44:29,079 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:44:29,079 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:44:29,080 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:44:29,524 INFO L197 IcfgInterpreter]: Interpreting procedure bor with input of size 10 for LOIs [2024-11-14 05:44:29,783 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:44:30,078 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '737#(and (<= 1 |#StackHeapBarrier|) (= |bor_#in~x.offset| 0) (<= 2 bor_~x.base) (<= 2 |bor_#in~x.base|) (= bor_~x.offset 0))' at error location [2024-11-14 05:44:30,078 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:44:30,078 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:44:30,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-14 05:44:30,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030595862] [2024-11-14 05:44:30,079 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:44:30,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-14 05:44:30,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:44:30,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-14 05:44:30,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2024-11-14 05:44:30,080 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:44:30,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:44:30,146 INFO L93 Difference]: Finished difference Result 57 states and 66 transitions. [2024-11-14 05:44:30,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 05:44:30,150 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-14 05:44:30,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:44:30,150 INFO L225 Difference]: With dead ends: 57 [2024-11-14 05:44:30,150 INFO L226 Difference]: Without dead ends: 34 [2024-11-14 05:44:30,151 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2024-11-14 05:44:30,152 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:44:30,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 120 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:44:30,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-11-14 05:44:30,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-11-14 05:44:30,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 25 states have (on average 1.32) internal successors, (33), 30 states have internal predecessors, (33), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:44:30,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2024-11-14 05:44:30,161 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 13 [2024-11-14 05:44:30,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:44:30,161 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2024-11-14 05:44:30,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:44:30,161 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2024-11-14 05:44:30,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-14 05:44:30,162 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:44:30,162 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-14 05:44:30,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-14 05:44:30,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:44:30,366 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-14 05:44:30,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:44:30,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1109833957, now seen corresponding path program 2 times [2024-11-14 05:44:30,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:44:30,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472467908] [2024-11-14 05:44:30,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:44:30,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:44:30,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:44:30,450 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-14 05:44:30,450 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:44:30,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472467908] [2024-11-14 05:44:30,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472467908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:44:30,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:44:30,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:44:30,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981709490] [2024-11-14 05:44:30,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:44:30,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:44:30,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:44:30,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:44:30,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:44:30,452 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:44:30,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:44:30,481 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2024-11-14 05:44:30,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:44:30,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-14 05:44:30,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:44:30,483 INFO L225 Difference]: With dead ends: 34 [2024-11-14 05:44:30,483 INFO L226 Difference]: Without dead ends: 32 [2024-11-14 05:44:30,483 INFO L431 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 [2024-11-14 05:44:30,484 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:44:30,484 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:44:30,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-11-14 05:44:30,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2024-11-14 05:44:30,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 26 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:44:30,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2024-11-14 05:44:30,493 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 19 [2024-11-14 05:44:30,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:44:30,495 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2024-11-14 05:44:30,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:44:30,495 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2024-11-14 05:44:30,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-14 05:44:30,495 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:44:30,495 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:44:30,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-14 05:44:30,496 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-14 05:44:30,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:44:30,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1062783682, now seen corresponding path program 1 times [2024-11-14 05:44:30,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:44:30,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601610338] [2024-11-14 05:44:30,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:44:30,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:44:30,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:44:30,664 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 05:44:30,664 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:44:30,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601610338] [2024-11-14 05:44:30,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601610338] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:44:30,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729600324] [2024-11-14 05:44:30,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:44:30,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:44:30,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:44:30,667 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:44:30,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 05:44:30,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:44:30,817 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-14 05:44:30,820 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:44:30,842 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-14 05:44:30,842 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:44:30,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1729600324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:44:30,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:44:30,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-14 05:44:30,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202365267] [2024-11-14 05:44:30,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:44:30,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:44:30,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:44:30,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:44:30,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:44:30,844 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:44:30,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:44:30,908 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2024-11-14 05:44:30,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:44:30,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 29 [2024-11-14 05:44:30,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:44:30,910 INFO L225 Difference]: With dead ends: 34 [2024-11-14 05:44:30,910 INFO L226 Difference]: Without dead ends: 33 [2024-11-14 05:44:30,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:44:30,911 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 1 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:44:30,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 31 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:44:30,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2024-11-14 05:44:30,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2024-11-14 05:44:30,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 25 states have (on average 1.24) internal successors, (31), 28 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:44:30,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2024-11-14 05:44:30,921 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 29 [2024-11-14 05:44:30,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:44:30,923 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2024-11-14 05:44:30,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:44:30,923 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2024-11-14 05:44:30,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-14 05:44:30,924 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:44:30,924 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:44:30,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-14 05:44:31,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:44:31,125 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-14 05:44:31,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:44:31,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1413444131, now seen corresponding path program 1 times [2024-11-14 05:44:31,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:44:31,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116447052] [2024-11-14 05:44:31,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:44:31,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:44:31,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:44:31,264 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 05:44:31,264 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:44:31,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116447052] [2024-11-14 05:44:31,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116447052] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:44:31,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864446601] [2024-11-14 05:44:31,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:44:31,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:44:31,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:44:31,267 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:44:31,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 05:44:31,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:44:31,363 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-14 05:44:31,364 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:44:31,379 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-14 05:44:31,380 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:44:31,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864446601] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:44:31,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:44:31,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-14 05:44:31,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76938776] [2024-11-14 05:44:31,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:44:31,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:44:31,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:44:31,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:44:31,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:44:31,383 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:44:31,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:44:31,415 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2024-11-14 05:44:31,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:44:31,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2024-11-14 05:44:31,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:44:31,416 INFO L225 Difference]: With dead ends: 34 [2024-11-14 05:44:31,416 INFO L226 Difference]: Without dead ends: 33 [2024-11-14 05:44:31,417 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:44:31,417 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:44:31,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:44:31,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2024-11-14 05:44:31,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2024-11-14 05:44:31,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 29 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:44:31,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2024-11-14 05:44:31,428 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 30 [2024-11-14 05:44:31,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:44:31,430 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2024-11-14 05:44:31,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:44:31,431 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2024-11-14 05:44:31,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-14 05:44:31,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:44:31,432 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:44:31,452 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-14 05:44:31,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:44:31,633 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-14 05:44:31,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:44:31,633 INFO L85 PathProgramCache]: Analyzing trace with hash -867095004, now seen corresponding path program 1 times [2024-11-14 05:44:31,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:44:31,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049486718] [2024-11-14 05:44:31,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:44:31,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:44:31,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:44:31,762 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 05:44:31,763 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:44:31,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049486718] [2024-11-14 05:44:31,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049486718] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:44:31,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1429966129] [2024-11-14 05:44:31,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:44:31,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:44:31,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:44:31,765 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:44:31,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-14 05:44:31,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:44:31,859 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 05:44:31,860 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:44:31,953 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-14 05:44:31,953 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:44:32,100 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-14 05:44:32,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1429966129] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:44:32,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1104748705] [2024-11-14 05:44:32,103 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2024-11-14 05:44:32,104 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:44:32,104 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:44:32,104 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:44:32,104 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:44:32,679 INFO L197 IcfgInterpreter]: Interpreting procedure bor with input of size 10 for LOIs [2024-11-14 05:44:32,980 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:44:35,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1104748705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:44:35,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:44:35,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [5, 8, 9] total 32 [2024-11-14 05:44:35,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979027575] [2024-11-14 05:44:35,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:44:35,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-14 05:44:35,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:44:35,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-14 05:44:35,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=869, Unknown=2, NotChecked=0, Total=992 [2024-11-14 05:44:35,722 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand has 15 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:44:37,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:44:38,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:44:38,071 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2024-11-14 05:44:38,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-14 05:44:38,071 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 31 [2024-11-14 05:44:38,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:44:38,075 INFO L225 Difference]: With dead ends: 37 [2024-11-14 05:44:38,075 INFO L226 Difference]: Without dead ends: 35 [2024-11-14 05:44:38,076 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=121, Invalid=869, Unknown=2, NotChecked=0, Total=992 [2024-11-14 05:44:38,076 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 21 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:44:38,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 43 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 148 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2024-11-14 05:44:38,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-11-14 05:44:38,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-11-14 05:44:38,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 31 states have internal predecessors, (34), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:44:38,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2024-11-14 05:44:38,088 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 31 [2024-11-14 05:44:38,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:44:38,088 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2024-11-14 05:44:38,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:44:38,088 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2024-11-14 05:44:38,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-14 05:44:38,089 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:44:38,089 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:44:38,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-14 05:44:38,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-14 05:44:38,290 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-14 05:44:38,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:44:38,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1693847967, now seen corresponding path program 1 times [2024-11-14 05:44:38,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:44:38,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404632929] [2024-11-14 05:44:38,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:44:38,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:44:38,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:44:38,392 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-14 05:44:38,393 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:44:38,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404632929] [2024-11-14 05:44:38,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404632929] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:44:38,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1340999831] [2024-11-14 05:44:38,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:44:38,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:44:38,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:44:38,396 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:44:38,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-14 05:44:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:44:38,477 INFO L255 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 05:44:38,478 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:44:38,564 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 05:44:38,565 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:44:38,717 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 05:44:38,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1340999831] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:44:38,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [956114464] [2024-11-14 05:44:38,720 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2024-11-14 05:44:38,720 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:44:38,721 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:44:38,721 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:44:38,721 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:44:39,464 INFO L197 IcfgInterpreter]: Interpreting procedure bor with input of size 10 for LOIs [2024-11-14 05:44:39,794 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:44:40,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [956114464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:44:40,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:44:40,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [5, 8, 9] total 34 [2024-11-14 05:44:40,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924221901] [2024-11-14 05:44:40,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:44:40,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-14 05:44:40,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:44:40,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-14 05:44:40,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=987, Unknown=4, NotChecked=0, Total=1122 [2024-11-14 05:44:40,966 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 17 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:44:43,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:44:43,578 INFO L93 Difference]: Finished difference Result 35 states and 38 transitions. [2024-11-14 05:44:43,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 05:44:43,579 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 34 [2024-11-14 05:44:43,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:44:43,580 INFO L225 Difference]: With dead ends: 35 [2024-11-14 05:44:43,580 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 05:44:43,581 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 72 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=145, Invalid=1107, Unknown=8, NotChecked=0, Total=1260 [2024-11-14 05:44:43,581 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 7 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:44:43,582 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 05:44:43,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 05:44:43,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 05:44:43,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:44:43,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 05:44:43,583 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2024-11-14 05:44:43,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:44:43,583 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 05:44:43,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:44:43,583 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 05:44:43,583 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 05:44:43,587 INFO L782 garLoopResultBuilder]: Registering result SAFE for location borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2024-11-14 05:44:43,587 INFO L782 garLoopResultBuilder]: Registering result SAFE for location borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2024-11-14 05:44:43,587 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2024-11-14 05:44:43,588 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2024-11-14 05:44:43,588 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2024-11-14 05:44:43,588 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2024-11-14 05:44:43,588 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2024-11-14 05:44:43,588 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2024-11-14 05:44:43,613 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-14 05:44:43,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:44:43,792 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:44:43,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-14 05:44:54,146 WARN L286 SmtUtils]: Spent 8.13s on a formula simplification. DAG size of input: 66 DAG size of output: 23 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-14 05:44:54,323 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 05:44:54,335 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 05:44:54,337 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#x~0!base [2024-11-14 05:44:54,337 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#x~0!offset [2024-11-14 05:44:54,337 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 05:44:54,337 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#x~0!base [2024-11-14 05:44:54,338 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#x~0!offset [2024-11-14 05:44:54,340 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 05:44:54,341 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#x~0!base [2024-11-14 05:44:54,341 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#x~0!offset [2024-11-14 05:44:54,343 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #in~x!base [2024-11-14 05:44:54,343 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~x!base [2024-11-14 05:44:54,343 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-14 05:44:54,343 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-14 05:44:54,344 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IdentifierExpression[~x!base,]]] [2024-11-14 05:44:54,344 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 05:44:54,344 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #in~x!offset [2024-11-14 05:44:54,344 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~x!base [2024-11-14 05:44:54,344 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #in~x!base [2024-11-14 05:44:54,345 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~x!offset [2024-11-14 05:44:54,356 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 05:44:54,357 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #in~x!offset [2024-11-14 05:44:54,357 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #in~x!base [2024-11-14 05:44:54,357 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 05:44:54,357 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #in~x!offset [2024-11-14 05:44:54,357 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #in~x!base [2024-11-14 05:44:54,358 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-14 05:44:54,358 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-14 05:44:54,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:44:54 BoogieIcfgContainer [2024-11-14 05:44:54,361 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 05:44:54,362 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 05:44:54,362 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 05:44:54,362 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 05:44:54,363 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:44:22" (3/4) ... [2024-11-14 05:44:54,366 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 05:44:54,370 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure bor [2024-11-14 05:44:54,376 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2024-11-14 05:44:54,378 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-14 05:44:54,378 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-14 05:44:54,379 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 05:44:54,379 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 05:44:54,495 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 05:44:54,496 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-14 05:44:54,496 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 05:44:54,497 INFO L158 Benchmark]: Toolchain (without parser) took 32488.98ms. Allocated memory was 142.6MB in the beginning and 536.9MB in the end (delta: 394.3MB). Free memory was 119.1MB in the beginning and 404.9MB in the end (delta: -285.9MB). Peak memory consumption was 106.6MB. Max. memory is 16.1GB. [2024-11-14 05:44:54,497 INFO L158 Benchmark]: CDTParser took 1.74ms. Allocated memory is still 142.6MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:44:54,498 INFO L158 Benchmark]: CACSL2BoogieTranslator took 383.50ms. Allocated memory is still 142.6MB. Free memory was 118.8MB in the beginning and 107.8MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:44:54,498 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.16ms. Allocated memory is still 142.6MB. Free memory was 107.5MB in the beginning and 106.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:44:54,498 INFO L158 Benchmark]: Boogie Preprocessor took 33.78ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 105.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:44:54,499 INFO L158 Benchmark]: RCFGBuilder took 521.66ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 86.6MB in the end (delta: 18.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-14 05:44:54,499 INFO L158 Benchmark]: TraceAbstraction took 31366.45ms. Allocated memory was 142.6MB in the beginning and 536.9MB in the end (delta: 394.3MB). Free memory was 86.1MB in the beginning and 413.1MB in the end (delta: -327.0MB). Peak memory consumption was 64.7MB. Max. memory is 16.1GB. [2024-11-14 05:44:54,500 INFO L158 Benchmark]: Witness Printer took 134.18ms. Allocated memory is still 536.9MB. Free memory was 413.1MB in the beginning and 404.9MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:44:54,502 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.74ms. Allocated memory is still 142.6MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 383.50ms. Allocated memory is still 142.6MB. Free memory was 118.8MB in the beginning and 107.8MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.16ms. Allocated memory is still 142.6MB. Free memory was 107.5MB in the beginning and 106.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.78ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 105.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 521.66ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 86.6MB in the end (delta: 18.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 31366.45ms. Allocated memory was 142.6MB in the beginning and 536.9MB in the end (delta: 394.3MB). Free memory was 86.1MB in the beginning and 413.1MB in the end (delta: -327.0MB). Peak memory consumption was 64.7MB. Max. memory is 16.1GB. * Witness Printer took 134.18ms. Allocated memory is still 536.9MB. Free memory was 413.1MB in the beginning and 404.9MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#x~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#x~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#x~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#x~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#x~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#x~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #in~x!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~x!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IdentifierExpression[~x!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #in~x!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~x!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #in~x!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~x!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #in~x!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #in~x!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #in~x!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #in~x!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * 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: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: 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 2 procedures, 29 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 20.7s, OverallIterations: 11, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 73 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 67 mSDsluCounter, 598 SdHoareTripleChecker+Invalid, 3.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 422 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 724 IncrementalHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 176 mSDtfsCounter, 724 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 394 GetRequests, 264 SyntacticMatches, 2 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 995 ImplicationChecksByTransitivity, 7.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=10, InterpolantAutomatonStates: 72, 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, 11 MinimizatonAttempts, 5 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 357 NumberOfCodeBlocks, 357 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 432 ConstructedInterpolants, 0 QuantifiedInterpolants, 658 SizeOfPredicates, 0 NumberOfNonLiveVariables, 985 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 24 InterpolantComputations, 6 PerfectInterpolantSequences, 181/272 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: OVERALL_TIME: 4.1s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 8, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 54, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 142, TOOLS_POST_TIME: 3.1s, TOOLS_POST_CALL_APPLICATIONS: 14, TOOLS_POST_CALL_TIME: 0.1s, TOOLS_POST_RETURN_APPLICATIONS: 8, TOOLS_POST_RETURN_TIME: 0.1s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 164, TOOLS_QUANTIFIERELIM_TIME: 3.2s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.2s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 284, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 27, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 15, DOMAIN_WIDEN_TIME: 0.3s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 25, DOMAIN_ISSUBSETEQ_TIME: 0.2s, DOMAIN_ISBOTTOM_APPLICATIONS: 54, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 10, LOOP_SUMMARIZER_CACHE_MISSES: 10, LOOP_SUMMARIZER_OVERALL_TIME: 3.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 3.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 25, CALL_SUMMARIZER_APPLICATIONS: 8, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME: 0.3s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.3s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 907, DAG_COMPRESSION_RETAINED_NODES: 203, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: ((i == 0) || ((i <= 2147483647) && (1 <= i))) - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: ((((((ret2 <= 2147483647) && (0 <= i)) && (0 <= (ret2 + 2147483648))) && (i <= 2147483647)) && (0 <= (ret + 2147483648))) && (ret <= 2147483647)) - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: ((i <= 2147483647) && (1 <= i)) RESULT: Ultimate proved your program to be correct! [2024-11-14 05:44:54,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1687a8ab-a987-43ee-bb24-df99767eb10d/bin/utaipan-verify-sOmjnqqW8E/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