./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b73d152-d991-40ef-b8ba-3f2b1a267c71/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b73d152-d991-40ef-b8ba-3f2b1a267c71/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_1b73d152-d991-40ef-b8ba-3f2b1a267c71/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b73d152-d991-40ef-b8ba-3f2b1a267c71/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b73d152-d991-40ef-b8ba-3f2b1a267c71/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b73d152-d991-40ef-b8ba-3f2b1a267c71/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d85bf43cff1a30e10d1e3bbf4675032df62c31f758d5324913387f5dfb870a68 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:46:18,302 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:46:18,408 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b73d152-d991-40ef-b8ba-3f2b1a267c71/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 04:46:18,419 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:46:18,422 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:46:18,469 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:46:18,471 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:46:18,472 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:46:18,473 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:46:18,473 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:46:18,474 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:46:18,474 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:46:18,474 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:46:18,475 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:46:18,476 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:46:18,476 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:46:18,476 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:46:18,476 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:46:18,476 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:46:18,477 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:46:18,477 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:46:18,477 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:46:18,478 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:46:18,478 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:46:18,478 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:46:18,478 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:46:18,478 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:46:18,479 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:46:18,479 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:46:18,479 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:46:18,480 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:46:18,480 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:46:18,480 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:46:18,480 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:46:18,480 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:46:18,480 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:46:18,480 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:46:18,480 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:46:18,481 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:46:18,481 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:46:18,481 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:46:18,481 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:46:18,481 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:46:18,481 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:46:18,481 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:46:18,481 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:46:18,481 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:46:18,481 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_1b73d152-d991-40ef-b8ba-3f2b1a267c71/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 ! call(reach_error())) ) 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 -> d85bf43cff1a30e10d1e3bbf4675032df62c31f758d5324913387f5dfb870a68 [2024-11-14 04:46:18,847 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:46:18,857 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:46:18,860 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:46:18,861 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:46:18,861 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:46:18,863 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b73d152-d991-40ef-b8ba-3f2b1a267c71/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c Unable to find full path for "g++" [2024-11-14 04:46:20,873 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:46:21,213 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:46:21,214 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b73d152-d991-40ef-b8ba-3f2b1a267c71/sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c [2024-11-14 04:46:21,225 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b73d152-d991-40ef-b8ba-3f2b1a267c71/bin/utaipan-verify-sOmjnqqW8E/data/8941e5755/861ab5590a53442bb74d3a0c61d5b825/FLAG8ec3467df [2024-11-14 04:46:21,247 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b73d152-d991-40ef-b8ba-3f2b1a267c71/bin/utaipan-verify-sOmjnqqW8E/data/8941e5755/861ab5590a53442bb74d3a0c61d5b825 [2024-11-14 04:46:21,262 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:46:21,264 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:46:21,266 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:46:21,266 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:46:21,276 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:46:21,278 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:46:21" (1/1) ... [2024-11-14 04:46:21,279 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ca30ee6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:46:21, skipping insertion in model container [2024-11-14 04:46:21,279 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:46:21" (1/1) ... [2024-11-14 04:46:21,294 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:46:21,484 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b73d152-d991-40ef-b8ba-3f2b1a267c71/sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c[1110,1123] [2024-11-14 04:46:21,489 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:46:21,502 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:46:21,518 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b73d152-d991-40ef-b8ba-3f2b1a267c71/sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c[1110,1123] [2024-11-14 04:46:21,519 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:46:21,532 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:46:21,533 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:46:21 WrapperNode [2024-11-14 04:46:21,533 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:46:21,534 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:46:21,534 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:46:21,535 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:46:21,542 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:46:21" (1/1) ... [2024-11-14 04:46:21,551 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:46:21" (1/1) ... [2024-11-14 04:46:21,571 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2024-11-14 04:46:21,571 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:46:21,575 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:46:21,575 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:46:21,575 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:46:21,582 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:46:21" (1/1) ... [2024-11-14 04:46:21,583 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:46:21" (1/1) ... [2024-11-14 04:46:21,586 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:46:21" (1/1) ... [2024-11-14 04:46:21,586 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:46:21" (1/1) ... [2024-11-14 04:46:21,591 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:46:21" (1/1) ... [2024-11-14 04:46:21,593 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:46:21" (1/1) ... [2024-11-14 04:46:21,593 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:46:21" (1/1) ... [2024-11-14 04:46:21,594 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:46:21" (1/1) ... [2024-11-14 04:46:21,595 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:46:21,596 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:46:21,596 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:46:21,596 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:46:21,597 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:46:21" (1/1) ... [2024-11-14 04:46:21,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:46:21,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b73d152-d991-40ef-b8ba-3f2b1a267c71/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:46:21,630 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b73d152-d991-40ef-b8ba-3f2b1a267c71/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:46:21,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b73d152-d991-40ef-b8ba-3f2b1a267c71/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:46:21,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:46:21,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:46:21,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:46:21,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:46:21,720 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:46:21,722 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:46:21,850 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-11-14 04:46:21,850 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:46:21,873 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:46:21,874 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 04:46:21,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:46:21 BoogieIcfgContainer [2024-11-14 04:46:21,874 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:46:21,876 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:46:21,877 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:46:21,882 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:46:21,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:46:21" (1/3) ... [2024-11-14 04:46:21,882 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46098d59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:46:21, skipping insertion in model container [2024-11-14 04:46:21,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:46:21" (2/3) ... [2024-11-14 04:46:21,883 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46098d59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:46:21, skipping insertion in model container [2024-11-14 04:46:21,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:46:21" (3/3) ... [2024-11-14 04:46:21,884 INFO L112 eAbstractionObserver]: Analyzing ICFG jm2006.c.i.v+cfa-reducer.c [2024-11-14 04:46:21,901 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:46:21,902 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG jm2006.c.i.v+cfa-reducer.c that has 1 procedures, 10 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-14 04:46:21,973 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:46:21,991 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;@4346a626, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:46:21,992 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:46:21,999 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.75) 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 04:46:22,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-14 04:46:22,006 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:46:22,007 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:46:22,007 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:46:22,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:46:22,014 INFO L85 PathProgramCache]: Analyzing trace with hash 2065207914, now seen corresponding path program 1 times [2024-11-14 04:46:22,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:46:22,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624542754] [2024-11-14 04:46:22,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:46:22,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:46:22,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:46:22,546 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 04:46:22,547 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:46:22,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624542754] [2024-11-14 04:46:22,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624542754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:46:22,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:46:22,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 04:46:22,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873411449] [2024-11-14 04:46:22,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:46:22,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:46:22,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:46:22,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:46:22,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:46:22,577 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.75) 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) Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 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 04:46:22,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:46:22,678 INFO L93 Difference]: Finished difference Result 17 states and 23 transitions. [2024-11-14 04:46:22,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:46:22,681 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 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 04:46:22,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:46:22,688 INFO L225 Difference]: With dead ends: 17 [2024-11-14 04:46:22,689 INFO L226 Difference]: Without dead ends: 9 [2024-11-14 04:46:22,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:46:22,695 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:46:22,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:46:22,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2024-11-14 04:46:22,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2024-11-14 04:46:22,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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 04:46:22,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-14 04:46:22,727 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2024-11-14 04:46:22,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:46:22,728 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-14 04:46:22,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 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 04:46:22,728 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-14 04:46:22,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-14 04:46:22,729 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:46:22,729 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:46:22,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 04:46:22,730 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:46:22,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:46:22,731 INFO L85 PathProgramCache]: Analyzing trace with hash -405003410, now seen corresponding path program 1 times [2024-11-14 04:46:22,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:46:22,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139823954] [2024-11-14 04:46:22,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:46:22,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:46:22,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:46:23,052 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 04:46:23,052 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:46:23,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139823954] [2024-11-14 04:46:23,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139823954] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:46:23,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435165524] [2024-11-14 04:46:23,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:46:23,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:46:23,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b73d152-d991-40ef-b8ba-3f2b1a267c71/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:46:23,056 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b73d152-d991-40ef-b8ba-3f2b1a267c71/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:46:23,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b73d152-d991-40ef-b8ba-3f2b1a267c71/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 04:46:23,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:46:23,134 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 04:46:23,155 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:46:23,313 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 04:46:23,313 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:46:23,456 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 04:46:23,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1435165524] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:46:23,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1609733388] [2024-11-14 04:46:23,478 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2024-11-14 04:46:23,478 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:46:23,481 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:46:23,486 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:46:23,487 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:46:23,805 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:46:24,205 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '101#(and (<= 1 |#StackHeapBarrier|) (= ~__return_72~0 0) (= ~__return_main~0 0))' at error location [2024-11-14 04:46:24,205 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:46:24,206 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:46:24,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-11-14 04:46:24,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308187943] [2024-11-14 04:46:24,207 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:46:24,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 04:46:24,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:46:24,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 04:46:24,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2024-11-14 04:46:24,209 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 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 04:46:24,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:46:24,267 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2024-11-14 04:46:24,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 04:46:24,268 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 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) Word has length 8 [2024-11-14 04:46:24,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:46:24,268 INFO L225 Difference]: With dead ends: 11 [2024-11-14 04:46:24,268 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 04:46:24,269 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2024-11-14 04:46:24,270 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:46:24,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:46:24,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 04:46:24,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 04:46:24,272 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 04:46:24,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 04:46:24,272 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2024-11-14 04:46:24,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:46:24,273 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 04:46:24,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 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 04:46:24,273 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 04:46:24,273 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 04:46:24,276 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 04:46:24,298 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b73d152-d991-40ef-b8ba-3f2b1a267c71/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 04:46:24,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b73d152-d991-40ef-b8ba-3f2b1a267c71/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:46:24,488 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-14 04:46:24,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-14 04:46:24,499 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 04:46:24,509 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 04:46:24 BoogieIcfgContainer [2024-11-14 04:46:24,509 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 04:46:24,512 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 04:46:24,512 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 04:46:24,512 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 04:46:24,513 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:46:21" (3/4) ... [2024-11-14 04:46:24,516 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 04:46:24,526 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-14 04:46:24,526 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-14 04:46:24,526 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-14 04:46:24,526 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 04:46:24,620 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b73d152-d991-40ef-b8ba-3f2b1a267c71/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 04:46:24,621 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b73d152-d991-40ef-b8ba-3f2b1a267c71/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-14 04:46:24,621 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 04:46:24,623 INFO L158 Benchmark]: Toolchain (without parser) took 3357.96ms. Allocated memory is still 142.6MB. Free memory was 119.5MB in the beginning and 77.2MB in the end (delta: 42.3MB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB. [2024-11-14 04:46:24,623 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 167.8MB. Free memory is still 105.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:46:24,623 INFO L158 Benchmark]: CACSL2BoogieTranslator took 267.92ms. Allocated memory is still 142.6MB. Free memory was 119.5MB in the beginning and 108.4MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:46:24,624 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.30ms. Allocated memory is still 142.6MB. Free memory was 108.4MB in the beginning and 107.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:46:24,624 INFO L158 Benchmark]: Boogie Preprocessor took 20.99ms. Allocated memory is still 142.6MB. Free memory was 107.4MB in the beginning and 106.6MB in the end (delta: 740.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:46:24,625 INFO L158 Benchmark]: RCFGBuilder took 277.94ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 95.6MB in the end (delta: 11.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 04:46:24,625 INFO L158 Benchmark]: TraceAbstraction took 2632.72ms. Allocated memory is still 142.6MB. Free memory was 95.2MB in the beginning and 81.7MB in the end (delta: 13.6MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2024-11-14 04:46:24,625 INFO L158 Benchmark]: Witness Printer took 109.30ms. Allocated memory is still 142.6MB. Free memory was 81.7MB in the beginning and 77.2MB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:46:24,627 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 167.8MB. Free memory is still 105.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 267.92ms. Allocated memory is still 142.6MB. Free memory was 119.5MB in the beginning and 108.4MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.30ms. Allocated memory is still 142.6MB. Free memory was 108.4MB in the beginning and 107.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.99ms. Allocated memory is still 142.6MB. Free memory was 107.4MB in the beginning and 106.6MB in the end (delta: 740.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 277.94ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 95.6MB in the end (delta: 11.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2632.72ms. Allocated memory is still 142.6MB. Free memory was 95.2MB in the beginning and 81.7MB in the end (delta: 13.6MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. * Witness Printer took 109.30ms. Allocated memory is still 142.6MB. Free memory was 81.7MB in the beginning and 77.2MB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 53]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 74 IncrementalHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 8 mSDtfsCounter, 74 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 13, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 194 SizeOfPredicates, 0 NumberOfNonLiveVariables, 55 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-14 04:46:24,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b73d152-d991-40ef-b8ba-3f2b1a267c71/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