./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-linkedlists/cll_search-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_c83150ec-f62b-458d-8879-3bcf95b35dba/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83150ec-f62b-458d-8879-3bcf95b35dba/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_c83150ec-f62b-458d-8879-3bcf95b35dba/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83150ec-f62b-458d-8879-3bcf95b35dba/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-memory-linkedlists/cll_search-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83150ec-f62b-458d-8879-3bcf95b35dba/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83150ec-f62b-458d-8879-3bcf95b35dba/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 64bit --witnessprinter.graph.data.programhash d8adfff7e82315c87ecd35a52aa8c3250747b82419ef73977e38a97f4dddf8e4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:21:34,829 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:21:34,916 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83150ec-f62b-458d-8879-3bcf95b35dba/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-64bit-Taipan_Default.epf [2024-11-14 03:21:34,922 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:21:34,922 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:21:34,955 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:21:34,955 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:21:34,956 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:21:34,956 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:21:34,956 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:21:34,956 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:21:34,956 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:21:34,956 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:21:34,956 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:21:34,957 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:21:34,957 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:21:34,957 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:21:34,957 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:21:34,957 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:21:34,957 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:21:34,957 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:21:34,957 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:21:34,958 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:21:34,958 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:21:34,958 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:21:34,958 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:21:34,958 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:21:34,958 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:21:34,958 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:21:34,959 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:21:34,959 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 03:21:34,959 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 03:21:34,959 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:21:34,959 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:21:34,959 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:21:34,959 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:21:34,959 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:21:34,959 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:21:34,960 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:21:34,960 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:21:34,960 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:21:34,960 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:21:34,960 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:21:34,960 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:21:34,960 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:21:34,960 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:21:34,960 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_c83150ec-f62b-458d-8879-3bcf95b35dba/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8adfff7e82315c87ecd35a52aa8c3250747b82419ef73977e38a97f4dddf8e4 [2024-11-14 03:21:35,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:21:35,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:21:35,277 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:21:35,278 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:21:35,278 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:21:35,280 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83150ec-f62b-458d-8879-3bcf95b35dba/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/termination-memory-linkedlists/cll_search-alloca-2.i Unable to find full path for "g++" [2024-11-14 03:21:37,097 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:21:37,523 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:21:37,523 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83150ec-f62b-458d-8879-3bcf95b35dba/sv-benchmarks/c/termination-memory-linkedlists/cll_search-alloca-2.i [2024-11-14 03:21:37,536 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83150ec-f62b-458d-8879-3bcf95b35dba/bin/utaipan-verify-sOmjnqqW8E/data/24aec4cbe/fb8063400a1d4272932e03c236e11c21/FLAG4336d5cbc [2024-11-14 03:21:37,552 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83150ec-f62b-458d-8879-3bcf95b35dba/bin/utaipan-verify-sOmjnqqW8E/data/24aec4cbe/fb8063400a1d4272932e03c236e11c21 [2024-11-14 03:21:37,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:21:37,556 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:21:37,558 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:21:37,558 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:21:37,563 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:21:37,564 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:21:37" (1/1) ... [2024-11-14 03:21:37,565 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8b7a1ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:21:37, skipping insertion in model container [2024-11-14 03:21:37,565 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:21:37" (1/1) ... [2024-11-14 03:21:37,611 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:21:37,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:21:37,993 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:21:38,051 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:21:38,088 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:21:38,088 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:21:38 WrapperNode [2024-11-14 03:21:38,089 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:21:38,090 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:21:38,090 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:21:38,090 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:21:38,103 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:21:38" (1/1) ... [2024-11-14 03:21:38,116 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:21:38" (1/1) ... [2024-11-14 03:21:38,139 INFO L138 Inliner]: procedures = 114, calls = 12, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 56 [2024-11-14 03:21:38,139 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:21:38,140 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:21:38,140 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:21:38,140 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:21:38,145 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:21:38" (1/1) ... [2024-11-14 03:21:38,145 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:21:38" (1/1) ... [2024-11-14 03:21:38,148 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:21:38" (1/1) ... [2024-11-14 03:21:38,148 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:21:38" (1/1) ... [2024-11-14 03:21:38,158 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:21:38" (1/1) ... [2024-11-14 03:21:38,162 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:21:38" (1/1) ... [2024-11-14 03:21:38,163 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:21:38" (1/1) ... [2024-11-14 03:21:38,164 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:21:38" (1/1) ... [2024-11-14 03:21:38,166 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:21:38,167 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:21:38,167 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:21:38,167 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:21:38,168 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:21:38" (1/1) ... [2024-11-14 03:21:38,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:21:38,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83150ec-f62b-458d-8879-3bcf95b35dba/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:21:38,208 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83150ec-f62b-458d-8879-3bcf95b35dba/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:21:38,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83150ec-f62b-458d-8879-3bcf95b35dba/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:21:38,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 03:21:38,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 03:21:38,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 03:21:38,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 03:21:38,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 03:21:38,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:21:38,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:21:38,321 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:21:38,323 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:21:38,462 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-14 03:21:38,462 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:21:38,517 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:21:38,517 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-14 03:21:38,518 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:21:38 BoogieIcfgContainer [2024-11-14 03:21:38,518 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:21:38,520 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:21:38,520 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:21:38,526 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:21:38,526 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:21:37" (1/3) ... [2024-11-14 03:21:38,527 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@692e93f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:21:38, skipping insertion in model container [2024-11-14 03:21:38,528 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:21:38" (2/3) ... [2024-11-14 03:21:38,529 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@692e93f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:21:38, skipping insertion in model container [2024-11-14 03:21:38,529 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:21:38" (3/3) ... [2024-11-14 03:21:38,530 INFO L112 eAbstractionObserver]: Analyzing ICFG cll_search-alloca-2.i [2024-11-14 03:21:38,549 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:21:38,551 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG cll_search-alloca-2.i that has 1 procedures, 10 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-11-14 03:21:38,623 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:21:38,639 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;@461dc300, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:21:38,640 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-14 03:21:38,645 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 9 states have internal predecessors, (12), 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 03:21:38,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-14 03:21:38,653 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:21:38,654 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-14 03:21:38,655 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-14 03:21:38,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:21:38,661 INFO L85 PathProgramCache]: Analyzing trace with hash 67591, now seen corresponding path program 1 times [2024-11-14 03:21:38,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:21:38,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674202127] [2024-11-14 03:21:38,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:21:38,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:21:38,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:21:39,016 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 03:21:39,017 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:21:39,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674202127] [2024-11-14 03:21:39,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674202127] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:21:39,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:21:39,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:21:39,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017626856] [2024-11-14 03:21:39,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:21:39,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:21:39,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:21:39,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:21:39,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:21:39,047 INFO L87 Difference]: Start difference. First operand has 10 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.0) 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 03:21:39,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:21:39,098 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2024-11-14 03:21:39,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:21:39,104 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 03:21:39,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:21:39,113 INFO L225 Difference]: With dead ends: 12 [2024-11-14 03:21:39,113 INFO L226 Difference]: Without dead ends: 5 [2024-11-14 03:21:39,118 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 03:21:39,122 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 1 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:21:39,124 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 9 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:21:39,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2024-11-14 03:21:39,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2024-11-14 03:21:39,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:21:39,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2024-11-14 03:21:39,170 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2024-11-14 03:21:39,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:21:39,171 INFO L471 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2024-11-14 03:21:39,171 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 03:21:39,171 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2024-11-14 03:21:39,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-14 03:21:39,171 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:21:39,171 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-14 03:21:39,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:21:39,174 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-14 03:21:39,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:21:39,176 INFO L85 PathProgramCache]: Analyzing trace with hash 2095365, now seen corresponding path program 1 times [2024-11-14 03:21:39,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:21:39,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787210542] [2024-11-14 03:21:39,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:21:39,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:21:39,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:21:39,326 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 03:21:39,326 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:21:39,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787210542] [2024-11-14 03:21:39,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787210542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:21:39,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:21:39,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:21:39,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431595733] [2024-11-14 03:21:39,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:21:39,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:21:39,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:21:39,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:21:39,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:21:39,329 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 03:21:39,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:21:39,368 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2024-11-14 03:21:39,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:21:39,369 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2024-11-14 03:21:39,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:21:39,369 INFO L225 Difference]: With dead ends: 9 [2024-11-14 03:21:39,370 INFO L226 Difference]: Without dead ends: 8 [2024-11-14 03:21:39,370 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 03:21:39,371 INFO L432 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 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 03:21:39,371 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:21:39,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2024-11-14 03:21:39,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2024-11-14 03:21:39,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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 03:21:39,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2024-11-14 03:21:39,379 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2024-11-14 03:21:39,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:21:39,379 INFO L471 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2024-11-14 03:21:39,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 03:21:39,379 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2024-11-14 03:21:39,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-14 03:21:39,380 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:21:39,380 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2024-11-14 03:21:39,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 03:21:39,380 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-14 03:21:39,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:21:39,381 INFO L85 PathProgramCache]: Analyzing trace with hash -2001450939, now seen corresponding path program 1 times [2024-11-14 03:21:39,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:21:39,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943774913] [2024-11-14 03:21:39,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:21:39,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:21:39,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:21:39,662 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:21:39,663 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:21:39,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943774913] [2024-11-14 03:21:39,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943774913] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:21:39,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40331893] [2024-11-14 03:21:39,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:21:39,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:21:39,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83150ec-f62b-458d-8879-3bcf95b35dba/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:21:39,667 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83150ec-f62b-458d-8879-3bcf95b35dba/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:21:39,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83150ec-f62b-458d-8879-3bcf95b35dba/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 03:21:39,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:21:39,802 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:21:39,807 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:21:39,865 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:21:39,866 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:21:39,950 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:21:39,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [40331893] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:21:39,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1696418599] [2024-11-14 03:21:39,971 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2024-11-14 03:21:39,971 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:21:39,974 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:21:39,979 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:21:39,979 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:21:55,719 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:21:56,626 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '110#(and (not (= |ULTIMATE.start_init_cll_~curr~0#1.base| 0)) (= |ULTIMATE.start_init_cll_~curr~0#1.offset| 0) (exists ((|v_#length_14| (Array Int Int))) (= |#length| (store |v_#length_14| |ULTIMATE.start_init_cll_~curr~0#1.base| 12))) (exists ((|v_#valid_15| (Array Int Int))) (and (= |#valid| (store |v_#valid_15| |ULTIMATE.start_init_cll_~curr~0#1.base| 1)) (= (select |v_#valid_15| |ULTIMATE.start_init_cll_~curr~0#1.base|) 0))) (exists ((|v_ULTIMATE.start_init_cll_~curr~0#1.base_21| Int) (|v_#memory_$Pointer$.base_10| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_10| (Array Int (Array Int Int))) (|v_ULTIMATE.start_init_cll_~curr~0#1.offset_21| Int) (|v_#memory_$Pointer$.offset_34| (Array Int (Array Int Int))) (|v_#memory_int_26| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_34| (Array Int (Array Int Int))) (|v_ULTIMATE.start_init_cll_#t~post4#1_20| Int)) (and (= (store |v_#memory_$Pointer$.base_10| |v_ULTIMATE.start_init_cll_~curr~0#1.base_21| (store (select |v_#memory_$Pointer$.base_10| |v_ULTIMATE.start_init_cll_~curr~0#1.base_21|) (+ |v_ULTIMATE.start_init_cll_~curr~0#1.offset_21| 4) |ULTIMATE.start_init_cll_~curr~0#1.base|)) |#memory_$Pointer$.base|) (= |#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_10| |v_ULTIMATE.start_init_cll_~curr~0#1.base_21| (store (select |v_#memory_$Pointer$.offset_10| |v_ULTIMATE.start_init_cll_~curr~0#1.base_21|) (+ |v_ULTIMATE.start_init_cll_~curr~0#1.offset_21| 4) 0))) (<= 2147483647 |v_ULTIMATE.start_init_cll_#t~post4#1_20|) (= |#memory_int| (store (store |v_#memory_int_26| |ULTIMATE.start_init_cll_~curr~0#1.base| (store (select |v_#memory_int_26| |ULTIMATE.start_init_cll_~curr~0#1.base|) 0 |v_ULTIMATE.start_init_cll_#t~post4#1_20|)) |v_ULTIMATE.start_init_cll_~curr~0#1.base_21| (store (select (store |v_#memory_int_26| |ULTIMATE.start_init_cll_~curr~0#1.base| (store (select |v_#memory_int_26| |ULTIMATE.start_init_cll_~curr~0#1.base|) 0 |v_ULTIMATE.start_init_cll_#t~post4#1_20|)) |v_ULTIMATE.start_init_cll_~curr~0#1.base_21|) (+ |v_ULTIMATE.start_init_cll_~curr~0#1.offset_21| 4) (select (select |#memory_int| |v_ULTIMATE.start_init_cll_~curr~0#1.base_21|) (+ |v_ULTIMATE.start_init_cll_~curr~0#1.offset_21| 4))))) (= (store |v_#memory_$Pointer$.base_34| |ULTIMATE.start_init_cll_~curr~0#1.base| (store (select |v_#memory_$Pointer$.base_34| |ULTIMATE.start_init_cll_~curr~0#1.base|) 0 (select (select |v_#memory_$Pointer$.base_10| |ULTIMATE.start_init_cll_~curr~0#1.base|) 0))) |v_#memory_$Pointer$.base_10|) (<= (+ |v_ULTIMATE.start_init_cll_#t~post4#1_20| 1) |ULTIMATE.start_init_cll_~n#1|) (= (store |v_#memory_$Pointer$.offset_34| |ULTIMATE.start_init_cll_~curr~0#1.base| (store (select |v_#memory_$Pointer$.offset_34| |ULTIMATE.start_init_cll_~curr~0#1.base|) 0 (select (select |v_#memory_$Pointer$.offset_10| |ULTIMATE.start_init_cll_~curr~0#1.base|) 0))) |v_#memory_$Pointer$.offset_10|))) (<= (+ |ULTIMATE.start_init_cll_~curr~0#1.base| 1) |#StackHeapBarrier|))' at error location [2024-11-14 03:21:56,627 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:21:56,628 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:21:56,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-14 03:21:56,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653707105] [2024-11-14 03:21:56,632 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:21:56,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-14 03:21:56,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:21:56,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-14 03:21:56,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-14 03:21:56,635 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:21:56,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:21:56,820 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2024-11-14 03:21:56,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 03:21:56,821 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-14 03:21:56,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:21:56,822 INFO L225 Difference]: With dead ends: 18 [2024-11-14 03:21:56,822 INFO L226 Difference]: Without dead ends: 17 [2024-11-14 03:21:56,822 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-14 03:21:56,823 INFO L432 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:21:56,826 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:21:56,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-11-14 03:21:56,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-11-14 03:21:56,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.0625) internal successors, (17), 16 states have internal predecessors, (17), 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 03:21:56,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2024-11-14 03:21:56,837 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 7 [2024-11-14 03:21:56,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:21:56,837 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2024-11-14 03:21:56,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:21:56,837 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2024-11-14 03:21:56,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-14 03:21:56,839 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:21:56,839 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 1, 1] [2024-11-14 03:21:56,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83150ec-f62b-458d-8879-3bcf95b35dba/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-14 03:21:57,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83150ec-f62b-458d-8879-3bcf95b35dba/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:21:57,042 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-14 03:21:57,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:21:57,042 INFO L85 PathProgramCache]: Analyzing trace with hash 356739333, now seen corresponding path program 2 times [2024-11-14 03:21:57,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:21:57,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352639145] [2024-11-14 03:21:57,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:21:57,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:21:57,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:21:58,071 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:21:58,073 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:21:58,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352639145] [2024-11-14 03:21:58,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352639145] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:21:58,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650010053] [2024-11-14 03:21:58,074 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:21:58,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:21:58,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83150ec-f62b-458d-8879-3bcf95b35dba/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:21:58,078 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83150ec-f62b-458d-8879-3bcf95b35dba/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:21:58,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83150ec-f62b-458d-8879-3bcf95b35dba/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 03:21:58,254 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-14 03:21:58,254 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:21:58,256 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:21:58,257 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:21:58,543 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-14 03:21:58,543 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:21:58,741 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-14 03:21:58,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1650010053] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:21:58,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1031301530] [2024-11-14 03:21:58,744 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2024-11-14 03:21:58,744 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:21:58,744 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:21:58,745 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:21:58,745 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:21:59,610 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:22:03,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1031301530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:22:03,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:22:03,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10, 2, 2] total 15 [2024-11-14 03:22:03,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806557922] [2024-11-14 03:22:03,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:22:03,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:22:03,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:22:03,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:22:03,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=209, Unknown=1, NotChecked=0, Total=272 [2024-11-14 03:22:03,016 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:22:03,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:22:03,086 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2024-11-14 03:22:03,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:22:03,087 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-14 03:22:03,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:22:03,088 INFO L225 Difference]: With dead ends: 17 [2024-11-14 03:22:03,088 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 03:22:03,089 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=62, Invalid=209, Unknown=1, NotChecked=0, Total=272 [2024-11-14 03:22:03,090 INFO L432 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:22:03,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:22:03,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 03:22:03,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 03:22:03,092 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 03:22:03,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 03:22:03,092 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2024-11-14 03:22:03,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:22:03,092 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 03:22:03,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:22:03,093 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 03:22:03,093 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 03:22:03,096 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-14 03:22:03,097 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-14 03:22:03,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83150ec-f62b-458d-8879-3bcf95b35dba/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 03:22:03,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83150ec-f62b-458d-8879-3bcf95b35dba/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:22:03,306 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-11-14 03:22:03,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-14 03:22:03,522 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 03:22:03,534 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~curr~0!offset [2024-11-14 03:22:03,537 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 03:22:03,538 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~head~0!offset [2024-11-14 03:22:03,543 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 03:22:03 BoogieIcfgContainer [2024-11-14 03:22:03,543 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 03:22:03,544 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 03:22:03,544 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 03:22:03,544 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 03:22:03,545 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:21:38" (3/4) ... [2024-11-14 03:22:03,548 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 03:22:03,555 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-14 03:22:03,555 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-14 03:22:03,555 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-14 03:22:03,556 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 03:22:03,663 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83150ec-f62b-458d-8879-3bcf95b35dba/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 03:22:03,664 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83150ec-f62b-458d-8879-3bcf95b35dba/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-14 03:22:03,664 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 03:22:03,666 INFO L158 Benchmark]: Toolchain (without parser) took 26108.77ms. Allocated memory was 142.6MB in the beginning and 411.0MB in the end (delta: 268.4MB). Free memory was 118.3MB in the beginning and 344.9MB in the end (delta: -226.5MB). Peak memory consumption was 40.7MB. Max. memory is 16.1GB. [2024-11-14 03:22:03,667 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 142.6MB. Free memory is still 80.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:22:03,667 INFO L158 Benchmark]: CACSL2BoogieTranslator took 531.19ms. Allocated memory is still 142.6MB. Free memory was 118.1MB in the beginning and 102.0MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 03:22:03,667 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.79ms. Allocated memory is still 142.6MB. Free memory was 102.0MB in the beginning and 100.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:22:03,668 INFO L158 Benchmark]: Boogie Preprocessor took 25.93ms. Allocated memory is still 142.6MB. Free memory was 100.4MB in the beginning and 99.5MB in the end (delta: 880.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:22:03,668 INFO L158 Benchmark]: RCFGBuilder took 351.14ms. Allocated memory is still 142.6MB. Free memory was 99.5MB in the beginning and 85.9MB in the end (delta: 13.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:22:03,668 INFO L158 Benchmark]: TraceAbstraction took 25023.30ms. Allocated memory was 142.6MB in the beginning and 411.0MB in the end (delta: 268.4MB). Free memory was 85.4MB in the beginning and 348.9MB in the end (delta: -263.5MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2024-11-14 03:22:03,669 INFO L158 Benchmark]: Witness Printer took 120.29ms. Allocated memory is still 411.0MB. Free memory was 348.9MB in the beginning and 344.9MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:22:03,675 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 142.6MB. Free memory is still 80.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 531.19ms. Allocated memory is still 142.6MB. Free memory was 118.1MB in the beginning and 102.0MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.79ms. Allocated memory is still 142.6MB. Free memory was 102.0MB in the beginning and 100.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.93ms. Allocated memory is still 142.6MB. Free memory was 100.4MB in the beginning and 99.5MB in the end (delta: 880.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 351.14ms. Allocated memory is still 142.6MB. Free memory was 99.5MB in the beginning and 85.9MB in the end (delta: 13.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 25023.30ms. Allocated memory was 142.6MB in the beginning and 411.0MB in the end (delta: 268.4MB). Free memory was 85.4MB in the beginning and 348.9MB in the end (delta: -263.5MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. * Witness Printer took 120.29ms. Allocated memory is still 411.0MB. Free memory was 348.9MB in the beginning and 344.9MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~curr~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~head~0!offset * 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: 552]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 552]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 24.7s, OverallIterations: 4, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 66 IncrementalHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 5 mSDtfsCounter, 66 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 83 GetRequests, 51 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 5.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=3, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 53 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 204 SizeOfPredicates, 2 NumberOfNonLiveVariables, 196 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 44/99 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: 0.9s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 4, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 13, TOOLS_POST_TIME: 0.7s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 13, TOOLS_QUANTIFIERELIM_TIME: 0.6s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 26, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 0, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 3, DOMAIN_ISSUBSETEQ_TIME: 0.1s, DOMAIN_ISBOTTOM_APPLICATIONS: 4, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 0.7s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.7s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 3, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, 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: 29, DAG_COMPRESSION_RETAINED_NODES: 18, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 552]: Loop Invariant Derived loop invariant: (((0 <= (n + 2147483648)) && (1 <= i)) && (n <= 2147483647)) RESULT: Ultimate proved your program to be correct! [2024-11-14 03:22:03,791 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83150ec-f62b-458d-8879-3bcf95b35dba/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE